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FUJITSU SEMICONDUCTOR DATA SHEET
DS04-27400-7E
ASSP For power supply applications
BIPOLAR
Power Supply Monitor
MB3771
s DESCRIPTION
The Fujitsu MB3771 is designed to monitor the voltage level of one or two power supplies (+5 V and an arbitrary voltage) in a microprocessor circuit, memory board in large-size computer, for example. If the circuit's power supply deviates more than a specified amount, then the MB3771 generates a reset signal to the microprocessor. Thus, the computer data is protected from accidental erasure. Using the MB3771 requires few external components. To monitor only a +5 V supply, the MB3771 requires the connection of one external capacitor. The level of an arbitrary detection voltage is determined by two external resistors. The MB3771 is available in an 8-pin Dual In-Line, Single In-Line Package or space saving Flat Package.
s FEATURES
* * * * * * * * * Precision voltage detection (VSA = 4.2 V 2.5 %) User selectable threshold level with hysterisis (VSB = 1.23 V 1.5 %) Monitors the voltage of one or two power supplies (5 V and an arbitrary voltage, >1.23 V) Usable as over voltage detector Low voltage output for reset signal (VCC = 0.8 V typ.) Minimal number of external components (one capacitor min.) Low power dissipation (ICC = 0.35 mA typ., VCC = 5 V) Detection threshold voltage has hysteresis function Reference voltage is connectable.
s PACKAGES
8-pin plastic DIP 8-pin plastic SIP 8-pin plastic SOIP
(DIP-8P-M01)
(SIP-8P-M03)
(FPT-8P-M01)
MB3771
s PIN ASSIGNMENT
(FRONT VIEW) 8 (TOP VIEW) CT VSC OUTC GND 1 2 3 4 8 7 6 5 RESET VSA VSB /RESIN VCC 7 6 5 4 3 2 1 RESET VSA VSB / RESIN VCC GND OUTC VSC CT
(DIP-8P-M01) (FPT-8P-M01)
(SIP-8P-M03)
s BLOCK DIAGRAM
VCC 5 1.24 V
1.24 V 100 k VSA 7 40 k
+ - Comp. A +
REFERENCE VOLTAGE
+ -
R Q
12 A
10 A
2
-
+
-
Comp. C
VSC
+
VSB / RESIN 6
-
Comp. B
S 4 1 CT 8 3 GND
RESET OUTC
2
MB3771
s FUNCTIONAL DESCRIPTIONS
Comparators Comp.A and Comp.B apply a hysteresis to the detected voltage, so that when the voltage at either the VSA or VSB pin falls below 1.23 V the RESET output signal goes to "low" level. Comp. B may be used to detect any given voltage(Sample Application 3), and can also be used as a forced reset pin (with reset hold time) with TTL input (Sample Application 6). Note that if Comp.B is not used, the VSB pin should be connected to the VCC pin (Sample Application 1). Instantaneous breaks or drops in the power supply can be detected as abnormal conditions by the MB3771 within a 2 s interval. However because momentary breaks or drops of this duration do not cause problems in actual systems in some cases, a delayed trigger function can be created by connecting capacitors to the VSA or VSB pin (Sample Application 8). Because the RESET output has built-in pull-up resistance, there is no need to connect to external pull-up resistance when connected to a high impedance load such as a CMOS logic IC. Comparator Comp. C is an open-collector output comparator without hysteresis, in which the polarity of input/ output characteristics is reversed. Thus Comp. C is useful for over-voltage detection (Sample Application 11) and positive logic RESET signal output (Sample Application 7), as well as for creating a reference voltage (Sample Application 10). Note that if Comp. C is not used, the VSC pin should be connected to the GND pin (Sample Application 1).
s FUNCTION EXPLANATION
VHYS VS
VCC
VCC CT 1 2 3 4 8 7 6 5 RESET 0.8 V t TPO TPO
RESET
t (1) (2) (3) (4) (5) (6) (7) (8)
(1) When VCC rises to about 0.8V, RESET goes low. (2) When VCC reaches VS +VHYS, CT then begins charging. RESET remains low during this time (3) RESET goes high when CT begins charging. : TPO = CT x 10 5 (Refer to CT pin capacitance vs. hold time ) (4) When VCC level dropps lower then VS, then RESET goes low and CT starts discharging. (5) When VCC level reaches VS + VHYS, then CT starts charging. In the case of voltage sagging, if the period from the time VCC goes lower than or equal to VS to the time VCC reaches VS +VHYS again, is longer than tPI, (as specified in the AC Characteristics), CT is discharged and charged successively. (6) After TPO passes, and VCC level exceeds VS + VHYS, then RESET goes high. (7) Same as Point 4. (8) RESET remains low until VCC drops below 0.8V. 3
MB3771
s ABSOLUTE MAXIMUM RATINGS
Parameter Power supply voltage Symbol VCC VSA Input voltage VSB VSC Power dissipation Storage temperature PD Tstg Rating Min. -0.3 -0.3 -0.3 -0.3 -55 Max. +20 VCC + 0.3 ( < +20) +20 +20 200 (Ta 85 C) +125 Unit V V V V mW C
WARNING: Semiconductor devices can be permanently damaged by application of stress (voltage, current, temperature, etc.) in excess of absolute maximum ratings. Do not exceed these ratings.
s RECOMMENDED OPERATING CONDITIONS
Parameter Power supply voltage Output current Operating ambient temperature Symbol VCC IRESET IOUTC Top Value Min. 3.5 0 0 -40 Max. 18 20 6 +85 Unit V mA mA C
WARNING: The recommended operating conditions are required in order to ensure the normal operation of the semiconductor device. All of the device's electrical characteristics are warranted when the device is operated within these ranges. Always use semiconductor devices within their recommended operating condition ranges. Operation outside these ranges may adversely affect reliability and could result in device failure. No warranty is made with respect to uses, operating conditions, or combinations not represented on the data sheet. Users considering application outside the listed conditions are advised to contact their FUJITSU representatives beforehand.
4
MB3771
s ELECTRICAL CHARACTERISTICS
1. DC Characteristics
(VCC = 5 V, Ta = + 25 C) Symbol ICC1 ICC2 VSAL (DOWN) Detection voltage VSAH (UP) Hysterisis width Detection voltage Deviation of detection voltage Hysterisis width Input current "H" level output voltage Output saturation voltage Output sink current CT charge current Input current Detection voltage Deviation of detection voltage Output leakage current Output saturation voltage Output sink current Reset operation minimum supply voltage VHYSA VSB VSB VHYSB IIHB IILB VOHR VOLR IRESET ICT IIHC IILC VSC VSC IOHC VOLC IOUTC VCCL VSB = 5 V VSB = 0 V IRESET = -5 A, VSB = 5 V IRESET = 3mA, VSB = 0 V IRESET = 10mA, VSB = 0 V VOLR = 1.0 V, VSB = 0 V VSB = 5 V, VCT = 0.5 V VSC = 5 V VSC = 0 V Ta = -40 C to +85 C VCC = 3.5 V to 18 V VOHC = 18 V IOUTC = 4 mA, VSC = 5 V VOLC = 1.0 V, VSC = 5 V VOLR = 0.4 V, IRESET = 200 A VSB Ta = -40 C to +85 C VCC = 3.5 V to 18 V Conditions VSB = 5 V, VSC = 0 V VSB = 0 V, VSC = 0 V VCC Ta = -40 C to +85 C VCC Ta = -40 C to +85 C Value Min. 4.10 4.05 4.20 4.15 50 1.212 1.200 14 4.5 20 9 1.225 1.205 6 Typ. 350 400 4.20 4.20 4.30 4.30 100 1.230 1.230 3 28 0 20 4.9 0.28 0.38 40 12 0 50 1.245 1.245 3 0 0.15 15 0.8 Max. 500 600 4.30 4.35 4.40 4.45 150 1.248 1.260 10 42 250 250 0.4 0.5 16 500 500 1.265 1.285 10 1 0.4 1.2 Unit A A V V V V mV V V mV mV nA nA V V V mA A nA nA V V mV A V mA V
Parameter Power supply current
5
MB3771
2. AC Characteristics
(VCC = 5 V, Ta = + 25 C, CT = 0.01 F) Symbol tPI tPO tr tf tPD*1 tPHL* tPLH*
2 2
Parameter
Conditions RL = 2.2 k, CL = 100 pF RL = 2.2 k, CL = 100 pF
Value Min. 5.0 0.5 Typ. 1.0 1.0 0.1 2 0.5 1.0 Max. 1.5 1.5 0.5 10
Unit s ms s s s s s
VSA, VSB input pulse width RESET output pulse width RESET rise time RESET fall time Propagation delay time
*1: In case of VSB termination. *2: In case of VSC termination.
6
MB3771
s APPLICATION CIRCUIT
1. 5V Power Supply Monitor
Monitored by VSA. Detection threshold voltage is VSAL and VSAH
VCC MB3771 1 CT 2 3 4 8 7 6 5 RESET
Logic circuit
2. 5V Power Supply Voltage Monitor (Externally Fine-Tuned Type)
The VSA detection voltage can be adjusted externally. Resistance R1 and R2 are set sufficiently lower than the IC internal partial voltage resistance, so that the detection voltage can be set using the ratio between resistance R1 and R2. (See the table below). * R1, R2 calculation formula (when R1 << 100 k, R2 <<40 k) VSAL = (R1 + R2 ) x VSB /R2 [V], VSAH = (R1 + R2 ) x (VSB + VHYSB) / R2 [V] : : R1 (k) 10 9.1 R2 (k) 3.9 3.9
Detection voltage : VSAL (V) Detection voltage : VSAH (V)
4.37 4.11
4.47 4.20
VCC MB3771 1 2 3 4 8 7 6 5 RESET R1 R2
CT
Logic Circuit
7
MB3771
3. Arbitrary Voltage Supply Monitor
(1) Case: VCC 18 V * Detection Voltage can be set by R1 and R2. Detection Voltage = (R1 + R2) x VSB/R2 * Connect Pin 7 to VCC when VCC less than 4.45 V. * Pin 7 can be opened when VCC greater than 4.45 V Power Dissipation can be reduced. Note : Hysteresis of 28 mV at VSB at termination is available. Hysteresis width dose not depend on (R1 + R2).
VCC MB3771 1 2 3 4 8 7 6 5 RESET R1 R2
CT
(2) Monitoring VCC > 18 V * Detection Voltage can be set by R1 and R2 Detection Voltage = (R1 + R2) x VSB/R2 * The RESET signal output is = 0V (low level) and = 5 V (high level). VCC voltage cannot be output. : : Do not pull up RESET to VCC. * Changing the resistance ratio between R4 and R5 changes the constant voltage output, thereby changing the voltage of the high level RESET output. Note that the constant voltage output should not exceed 18 V. * The 5 V output can be used as a power supply for control circuits with low current consumption. * In setting the R3 resistance level, caution should be given to the power consumption in the resistor. The table below lists sample resistance values for reference (using 1/4 resistance). VCC (V) 140 100 40
Detection voltage (V)
RESET Output min. power supply voltage (V) 6.7 3.8 1.4
R1 (M) 1.6 1.3 0.51
R2 (k) 20 20 20
R3 (k) 110 56 11
Output Current
(mA) < 0.2 < 0.5 < 1.6
100 81 33
* Values are actual measured values (using IOUTC = 100 A, VOLC = 0.4 V). Lowering the resistance value of R3 reduces the minimum supply voltage of the RESET output, but requires resistance with higher allowable loss.
VCC R3
5 V output(Stablized)
R4: 100 k
0.47 F
1 2 3 4
8 7 6 5 R2 R1
RESET
CT
R5: 33 k
8
MB3771
4. 5 V and 12 V Power Supply Monitor (2 types of power supply monitor VCC1 = 5 V, VCC2 =12 V)
* 5 V is monitored by VSA. Detection voltage is about 4.2 V * 12 V is monitored by VSB. When R1 = 390 k and R2 = 62 k, Detection voltage is about 9.0 V.Generally the detection voltage is determined by the following equation. Detection Voltage = (R1 + R2) x VSB/R2
VCC2 VCC1 MB3771 1 2 3 4 8 7 6 5 RESET R1: 390 k R2: 62 k
CT
Logic circuit
5. 5 V and 12 V Power Supply Monitor (RESET signal is generated by 5 V, VCC1 = 5 V, VCC2 = 12 V)
* 5 V is monitored by VSA, and generates RESET signal when VSA detects voltage sagging. * 12 V is monitored by VSC, and generates its detection signal at OUTC. * The detection voltage of 12 V monitoring and its hysterisis is determined by the following equations. R1 + R2 + R3 Detection voltage = x VSC (8.95 V in the circuit above) R2 + R3 R1 (R3 - R3 // R4) (R2 + R3) (R2 + R3 // R4)
Hysterisis width =
x VSC
(200 mV in the circuit above)
VCC2 VCC1 R L: 10 k MB3771 1 2 3 4 R4: 510 k R3: 30 k CT 8 7 6 5 RESET IRQ
or Port Logic Circuit
R1: 390 k
R5: 100 k
R2: 33 k
9
MB3771
6. 5 V Power Supply Monitor with forced RESET input (VCC = 5 V)
RESIN is an TTL compatible input.
RESIN VCC MB3771 1 2 CT 3 4 8 7 6 5
Logic Circuit
RESET
7. 5 V Power Supply Monitor with Non-inverted RESET
In this case, Comparator C is used to invert RESET signal. OUTC is an open-collector output. RL is used an a pull-up resistor.
VCC MB3771 RL: 10 k CT RESET 1 2 3 4 8 7 6 5
8. Supply Voltage Monitoring with Delayed Trigger
When the voltage shown in the diagram below is applied at VCC, the minimum value of the input pulse width is increased to 40 s (when C1 = 1000 pF). The formula for calculating the minimum value of the input pulse width [TPI] is: TPI [s] = 4 x 10-2 x C1 [pF] :
TP VCC 5V 4V 1 2 3 4 MB3771 8 7 6 5 RESET
CT
C1
10
MB3771
9. Dual (Positive/Negative) Power Supply Voltage Monitoring (VCC = 5 V, VEE = Negative Power Supply)
Monitors a 5 V and a negative (any given level) power supply. R1, R2, and R3 should be the same value. Detection Voltage = VSB - VSB x R4/R3 Example if VEE = -5 V, R4 = 91 k Then the detected voltage = -4.37 V In cases where VEE may be output when VCC is not output, it is necessary to use a Schottky barrier diode (SBD).
VCC
R5 : 5.1 k R4 VEE R3 : 20 k 0.22 F CT SBD 1 2 3 4
MB3771 8 7 6 5 R2 : 20 k RESET R1 : 20 k
10. Reference Voltage Generation and Voltage Sagging Detection
(1) 9V Reference Voltage Generation and 5V/9V Monitoring Detection Voltage = 7.2 V In the above examples, the output voltage and the detection voltage are determined by the following equations: Detection Voltage = (R1 + R2) x VSB/R2
15 V V CC : 5 V R 5 : 3 k MB3771 CT 0.47 F 1 2 3 4 8 7 6 5 RESET R3 : 7.5 k R4 : 1.2 k 9 V ( 50 mA) R 1: 300 k R 2: 62 k
11
MB3771
(2) 5 V Reference Voltage Generation and 5V Monitoring (No.1) Detection Voltage = 4.2 V In the above examples, the output voltage and the detection voltage are determined by the following equations: Output Voltage = (R3 + R4) x VSC/R4
15 V R5 : 3 k MB3771 CT 0.47 F 1 2 3 4 8 7 6 5 R3 : 3.6 k R4 : 1.2 k RESET 5 V( 50 mA)
(3) 5 V Reference Voltage Generation and 5 V Monitoring (No. 2) The value of R1 should be calculated from the current consumption of the MB3771, the current flowing at R2 and R3, and the 5 V output current. The table below provides sample resistance values for reference. VCC (V) 40 24 15
VCC R1 1 2 3 4 R2 : 100 k R3 : 33 k GND 0.47 F 8 7 6 5 5V RESET
R1 (k) 11 6.2 4.7
Output Current (mA)
< 1.6 < 1.4 < 0.6
CT
(4) 1.245 V Reference Voltage Generation and 5 V Monitoring Resistor R1 determines Reference current. Using 1.2 k as R1, reference current is about 2 mA.
VCC (5 V)
R1 : 10 k 1 2 3 4 0.47 F 8 7 6 5 RESET
CT
GND
Reference Voltage 1.245V typ.
12
MB3771
11. Low Voltage and Over Voltage Detection (VCC = 5 V)
VSH has no hysteresis. When over voltage is detected, RESET is held in the constant time as well as when low voltage is detected. VSL = (R1 + R2) x VSB/R2 VSH = (R3 + R4) x VSC/R4
VCC R3 MB3771 RESET 1 2 3 4 8 7 6 5 R2 VCC RESET R1
R4
CT
VSL
VSH
12. Detection of Abnormal State of Power Supply System (VCC = 5 V)
* This Example circuit detects abnormal low/over voltage of power supply voltage and is indicated by LED indicator. LED is reset by the CLEAR key. * The detection levels of low/over voltages are determined by VSA, and R1 and R2 respectively.
VCC LED R1 MB3771 1 2 3 4 8 7 6 5 R3: 620 R4: 1 k to 100 k CLEAR
R2
13
MB3771
13. Back-up Power Supply System (VCC = 5 V)
* * * * Use CMOS Logic and connect VDD of CMOS logic with VCCO. The back-up battery works after CS goes high as V2 < V1. During tPO, memory access is prohibited. CS`s threshold voltage V1 is determined by the following equation: V1 = VF + (R1 + R2 + R3) x VSB/R3 When V1 is 4.45 V or less, connect 7 pin with VCC. When V1 is 4.45 V or more, 7 pin can be used to open. * The voltage to change V2 is provided as the following equation: V2 = VF + (R1 + R2 + R3) x VSC/ (R2 + R3) However, please set V2 to 3.5 V or more.
VCC
V1 V2
t
CS
TPO t
VCCO
t
VCC
D1 V F 0.6 V R 1: 100 k
R4 >1 k R 5: 100 k
MB3771 1 2 3 4 8 7 6 5
R 2: 6.2 k
R 6: 100 k VCCO
CT
CS R3: 56 k
*: Diode has been added to prevent Comp.C from malfunctionig when VCC voltage is low. Set V1 and V2 with care given to VF temperature characteristics (typically negative temperature characteristics).
14
MB3771
s TYPICAL CHARACTERISTICS
Power supply current vs. power supply voltage Power supply current ICC1 (A)
700 600 500 400 300 200 100 0 0 25C -40C -40C 85C 25C 85C 5 10 15 20
Detection voltage (VSC) vs. anbient temperature Detection voltage VSC (V)
1.30
1.25
Power supply voltage VCC (V)
1.20 - 50
-25
0
25
50
75
100
Anbient temperature Ta (C)
Power supply current vs. power supply voltage Power supply current ICC2 (A)
700 600 500 400 300 200 100 0 0 -40C 25C 85C 5 10 15 20 85C 25C -40C
Detection voltage (VSB) vs. anbient temperature Detection voltage VSBH,VSBL (V)
1.30
VSBH 1.25 VSBL
Power supply voltage VCC (V)
1.20 -50
-25
0
25
50
75
100
Anbient temperature Ta (C)
Output (RESET) voltage vs. power supply voltage Detection voltage (VSA) vs. anbient temperature Detection voltage VSAH,VSAL (V)
5 4.5 4.4 4.3 4.2 4.1 4.0 -50 -25 VSAH VSAL
Output voltage VOLR (V)
4 3 2 1 Ta= 25C
0 85C 0
-40C 1 2 3 4 5
0
25
50
75
100
Power supply voltage VCC (V)
Anbient temperature Ta (C)
(Continued)
15
MB3771
(Continued)
Detection voltage (VSB, VSC) vs. Power supply voltage Detection voltage VSC, VSBL,VSBH (V)
1.27 1.26 1.25 1.24 1.23 1.22 1.21 1.20 0 5 10 15 20 VSBL 5.0
Reset voltage (RESET) vs. output current
VSC
Reset voltage VOHR (V)
VSBH
85C 4.5 Ta = - 40C 25C
4.0
0
-5
-10
-15
Power supply voltage VCC (V)
Output current IOH (A)
Reset hold time vs. power supply voltage (CT = 0.01F) Reset hold time tPO (ms)
1.5
Output (RESET) voltage vs. output current
2.0
Output voltage VOLR (V)
Ta = - 40C 85C
1.0
Ta = - 40C 25C 85C
1.0 25C
0.5
0 0 5 10 15 20
0 0 10 20 30 40 50
Power supply voltage VCC (V)
Output current IRESET (mA)
CT pin capacitance vs. reset hold time
10
Output voltage (OUTC) vs. output current
1.0 Ta = - 40C
Output voltage VOLC (V)
Reset hold time (s)
1 100 m Ta = 25C 10 m 1m 100 10 1 1 p 10 p 100 p 1000 p 0.01 0.1 1 10 100 - 40C 85C
25C
85C
0.5
0 0 5 10 15 20
CT pin capacitance CT (F)
Output current IOUTC (mA)
16
MB3771
s ORDERING INFORMATION
Part number MB3771P MB3771PS MB3771PF Package 8-pin Plastic DIP (DIP-8P-M01) 8-pin Plastic SIP (SIP-8P-M03) 8-pin Plastic SOP (FPT-8P-M01) Remarks
17
MB3771
s PACKAGE DIMENSIONS
8-pin Plastic DIP (DIP-8P-M01)
9.40 -0.30
+0.40 +.016
.370 -.012
1 PIN INDEX
6.200.25 (.244.010)
4.36(.172)MAX
0.51(.020)MIN 0.250.05 (.010.002)
3.00(.118)MIN
0.460.08 (.018.003) 15MAX
0.99 -0
+0.30 +.012
1.52 -0
+0.30 +.012
.039 -0 +0.35 0.89 -0.30
.060 -0
7.62(.300) TYP
.035 -.012
+.014
2.54(.100) TYP
C
1994 FUJITSU LIMITED D08006S-2C-3
Dimensions in mm (inches)
(Continued)
18
MB3771
(Continued) 8-pin Plastic SIP (SIP-8P-M03)
19.65 -0.35 .774 -.014
+0.15 +.006
3.260.25 (.128.010)
INDEX-1 6.200.25 (.244.010) INDEX-2 8.200.30 (.323.012)
0.99 -0
+0.30 +.012
.039 -0
4.000.30 (.157.012)
2.54(.100) TYP
1.52 -0
+0.30 +.012
.060 -0
0.500.08 (.020.003)
0.250.05 (.010.002)
C
1994 FUJITSU LIMITED S08010S-3C-2
Dimensions in mm (inches)
8-pin Plastic SOP (FPT-8P-M01)
2.25(.089)MAX (Mounting height) 0.05(.002)MIN (STAND OFF)
6.35 -0.20 .250 -.008
+0.25
+.010
INDEX
5.300.30 (.209.012)
7.800.40 (.307.016)
6.80 -0.20 .268 -.008
+0.40 +.016
1.27(.050) TYP 3.81(.150)REF
0.450.10 (.018.004)
O0.13(.005)
M
0.15 -0.02 .006 -.001
+0.05 +.002
0.500.20 (.020.008)
Details of "A" part 0.20(.008)
0.50(.020) "A" 0.10(.004) 0.18(.007)MAX 0.68(.027)MAX
C
1994 FUJITSU LIMITED F08002S-4C-4
Dimensions in mm (inches) 19
MB3771
FUJITSU LIMITED
For further information please contact:
Japan FUJITSU LIMITED Corporate Global Business Support Division Electronic Devices KAWASAKI PLANT, 4-1-1, Kamikodanaka, Nakahara-ku, Kawasaki-shi, Kanagawa 211-8588, Japan Tel: +81-44-754-3763 Fax: +81-44-754-3329
All Rights Reserved. The contents of this document are subject to change without notice. Customers are advised to consult with FUJITSU sales representatives before ordering. The information and circuit diagrams in this document are presented as examples of semiconductor device applications, and are not intended to be incorporated in devices for actual use. Also, FUJITSU is unable to assume responsibility for infringement of any patent rights or other rights of third parties arising from the use of this information or circuit diagrams. The contents of this document may not be reproduced or copied without the permission of FUJITSU LIMITED. FUJITSU semiconductor devices are intended for use in standard applications (computers, office automation and other office equipments, industrial, communications, and measurement equipments, personal or household devices, etc.). CAUTION: Customers considering the use of our products in special applications where failure or abnormal operation may directly affect human lives or cause physical injury or property damage, or where extremely high levels of reliability are demanded (such as aerospace systems, atomic energy controls, sea floor repeaters, vehicle operating controls, medical devices for life support, etc.) are requested to consult with FUJITSU sales representatives before such use. The company will not be responsible for damages arising from such use without prior approval. Any semiconductor devices have inherently a certain rate of failure. You must protect against injury, damage or loss from such failures by incorporating safety design measures into your facility and equipment such as redundancy, fire protection, and prevention of over-current levels and other abnormal operating conditions. If any products described in this document represent goods or technologies subject to certain restrictions on export under the Foreign Exchange and Foreign Trade Control Law of Japan, the prior authorization by Japanese government should be required for export of those products from Japan.
http://www.fujitsu.co.jp/
North and South America FUJITSU MICROELECTRONICS, INC. 3545 North First Street, San Jose, CA 95134-1804, USA Tel: +1-408-922-9000 Fax: +1-408-922-9179 Customer Response Center Mon. - Fri.: 7 am - 5 pm (PST) Tel: +1-800-866-8608 Fax: +1-408-922-9179
http://www.fujitsumicro.com/
Europe FUJITSU MICROELECTRONICS EUROPE GmbH Am Siebenstein 6-10, D-63303 Dreieich-Buchschlag, Germany Tel: +49-6103-690-0 Fax: +49-6103-690-122
http://www.fujitsu-fme.com/
Asia Pacific FUJITSU MICROELECTRONICS ASIA PTE LTD #05-08, 151 Lorong Chuan, New Tech Park, Singapore 556741 Tel: +65-281-0770 Fax: +65-281-0220
http://www.fmap.com.sg/
F0001 (c) FUJITSU LIMITED Printed in Japan

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