View M74HCT244PU_284951.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

M54HCT240/241/244PU M74HCT240/241/244PU
OCTAL BUS BUFFERS WITH PULL-UP INPUT NETWORK
.HI .LOWPOWERDI .COMPATI .CURRENT .OUTPUTDRI .SYMMETRI .BALANCEDPROPAGATI .PI
GH SPEED tPD = 14 ns (TYP.) at VCC = 5V SSIPATION ICCH = 200 A (TYP.) at TA = 25 oC BLE WITH TTL OUTPUTS VIH = 2V (MIN.) VIL = 0.8V (MAX) SOURCES ON DATA INPUTS ELIMINATE THE NEED OF EXTERNAL PULLUP RESISTORS VE CAPABILITY 15 LSTTL LOADS CAL OUTPUT IMPEDANCE |IOH| = IOL = 6 mA (MIN) ON DELAYS tPLH = tPHL N AND FUNCTION COMPATIBLE WITH 54/74LS240/241/244
B1R (Plastic Package)
F1R (Ceramic Package)
M1R (Micro Package) ORDER CODES : M54HCTXXXPUF1R M74HCTXXXPUM1R M74HCTXXXPUB1R
DESCRIPTION The M54/74HCT240PU, HCT241PU and HCT244PU are high speed CMOS OCTAL BUS 2 BUFFERs fabricated in silicon gate C MOS technology. They have the same high speed performance of their non-PU counterpart, plus a unique input topology which incorporates a constant current source for each data input. This results is in a small IIL (-150 A Typ.) wich can fix any data input in the HIGH Logic Level when it is left floating, thus eliminating the need of external pull-up resistor network. PIN CONNECTION (top view)
HCT240PU
This feature makes these devices particularly suitable in all applications where a data bus needs to be interfaced to manual controls like: rotary selectors, keyboards, dip-switches, etc. The inputs are compatible with TTL, NMOS and CMOS output voltage levels. They achieve the high speed operation similar to equivalent LSTTL while maintaining the CMOS low power dissipation. All inputs are equipped with protection circuits against static discharge and transient excess voltage.
HCT241PU
HCT244PU
M54/M74HCT240PU/241PU/244PU
INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION (HCT240PU)
PIN No 1 2, 4, 6, 8 9, 7, 5, 3 11, 13, 15, 17 18, 16, 14, 12 19 10 20 SYMBOL 1G 1A1 to 1A4 2Y1 to 2Y4 2A1 to 2A4 1Y1 to 1Y4 2G GND VCC NAME AND FUNCTION Output Enable Input Data Inputs Data Outputs Data Inputs Data Outputs Output Enabel Input Ground (0V) Positive Supply Voltage
PIN DESCRIPTION (HCT241PU)
PIN No 1 2, 4, 6, 8 9, 7, 5, 3 11, 13, 15, 17 18, 16, 14, 12 19 10 20 SYMBOL 1G 1A1 to 1A4 2Y1 to 2Y4 2A1 to 2A4 1Y1 to 1Y4 2G GND VCC NAME AND FUNCTION Output Enable Input Data Inputs Data Outputs Data Inputs Data Outputs Output Enabel Input Ground (0V) Positive Supply Voltage
PIN DESCRIPTION (HCT244PU)
PIN No 1 2, 4, 6, 8 9, 7, 5, 3 11, 13, 15, 17 18, 16, 14, 12 19 10 20 SYMBOL 1G 1A1 to 1A4 2Y1 to 2Y4 2A1 to 2A4 1Y1 to 1Y4 2G GND VCC NAME AND FUNCTION Output Enable Input Data Inputs Data Outputs Data Inputs Data Outputs Output Enabel Input Ground (0V) Positive Supply Voltage
IEC LOGIC SYMBOLS
HCT240PU HCT241PU HCT244PU
M54/M74HCT240PU/241PU/244PU
TRUTH TABLE
INPUT G L L H
X: "H" or "L" Z: High impedance
OUTPUT An L H X Yn (HCT240PU) H L Z Yn (HCT241PU) L H Z Yn (HCT244PU) L H Z
G (HCT241PU) H H L
CIRCUIT SCHEMATIC (1/8 PACKAGE)
HCT240PU HCT241/244PU
ABSOLUTE MAXIMUM RATINGS
Symbol VCC VI VO IIK IOK IO ICC or IGND PD Tstg TL Supply Voltage DC Input Voltage DC Output Voltage DC Input Diode Current DC Output Diode Current DC Output Source Sink Current Per Output Pin DC VCC or Ground Current Power Dissipation StorageTemperature Lead Temperature (10 sec) Parameter Value -0.5 to +7 -0.5 to VCC + 0.5 -0.5 to VCC + 0.5 20 20 35 70 500 (*) -65 to +150 300 Unit V V V mA mA mA mA mW o C
o
C
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operationunder thesecondition is not implied. (*) 500 mW: 65 oC derate to 300 mW by 10mW/oC: 65 oC to 85 oC
M54/M74HCT240PU/241PU/244PU
RECOMMENDED OPERATING CONDITIONS
Symbol VCC VI VO Top tr, tf Supply Voltage Input Voltage Output Voltage Operating Temperature: M54HC Series M74HC Series Input Rise and Fall Time (VCC = 4.5 to 5.5V) Parameter Value 4.5 to 5.5 0 to VCC 0 to VCC -55 to +125 -40 to +85 0 to 500 Unit V V V
o o
C C ns
DC SPECIFICATIONS
Test Conditions Symbol Parameter VCC (V) 4.5 to 5.5 4.5 to 5.5 4.5 TA = 25 C 54HC and 74HC Min. Typ. Max. 2.0
o
Value -40 to 85 oC -55 to 125 oC 74HC 54HC Min. Max. Min. Max. 2.0 2.0 Unit
VIH
High Level Input Voltage Low Level Input Voltage High Level Output Voltage
V
VIL
0.8
0.8
0.8
V
VOH
VI = IO=-20 A 4.4 VIH or IO=-6.0 mA 4.18 VIL VI = IO= 20 A VIH or IO= 6.0 mA VIL -50 -50
4.5 4.31 0.0 0.17 -130 -180 0.1 0.26 -250 -300 0.1 0.5 200 600 3.0
4.4 4.13 0.1 0.33 -30 -30 -350 -400 1.0 5.0 800 3.9
4.4 4.10 0.1 0.4 -20 -20 -400 -450 1.0 10 1000 4.0 V V
VOL
Low Level Output Voltage
4.5
IIL IIN IOZ ICCH ICC
Input Low Current input Leakage Current (EN inp.) 3 State Output Off State Current Quiescent Supply Current Additional worst case supply current
4.5 VI = 0.4 V 5.5 5.5 VIN = VCC or GND VIN = VIH or VIL VO = VCC or GND 5.5 VI = VCC 5.5 Per Input pin VI = 0.5V or 2.4V Other Inputs at VCC or GND 5.5
mA A A A mA
M54/M74HCT240PU/241PU/244PU
AC ELECTRICAL CHARACTERISTICS (Input t r = t f = 6 ns)
Test Conditions Symbol Parameter VCC (V) 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 CL (pF) 50 50 150 50 150 50 150 50 RL = 1K RL = 1K RL = 1K Value TA = 25 C -40 to 85 oC -55 to 125 oC 54HC and 74HC 74HC 54HC Min. Typ. Max. Min. Max. Min. Max. 7 12 15 18
o
Unit
tTLH tTHL tPLH tPHL tPLH tPHL tPZL tPZH tPLZ tPHZ CIN CPD (*)
Output Transition Time Propagation Delay Time (for 240) Propagation Delay Time (for 241/244) Output Enable Time Output Disable Time Input Capacitance Power Dissipation Capacitance
ns ns ns ns ns ns ns ns pF pF
18 22 20 24 22 26 25 5 100
28 34 31 37 34 40 36 10
35 43 39 46 43 50 45 10
42 51 47 56 51 60 54 10
TEST CIRCUIT I CC (Opr.)
HCT240PU
M54/M74HCT240PU/241PU/244PU
SWITCHING CHARACTERISTICS TEST WAVEFORM
M54/M74HCT240PU/241PU/244PU
Plastic DIP20 (0.25) MECHANICAL DATA
mm MIN. a1 B b b1 D E e e3 F I L Z 3.3 1.34 8.5 2.54 22.86 7.1 3.93 0.130 0.053 0.254 1.39 0.45 0.25 25.4 0.335 0.100 0.900 0.280 0.155 1.65 TYP. MAX. MIN. 0.010 0.055 0.018 0.010 1.000 0.065 inch TYP. MAX.
DIM.
P001J
M54/M74HCT240PU/241PU/244PU
Ceramic DIP20 MECHANICAL DATA
mm MIN. A B D E e3 F G I L M N1 P Q 7.9 2.29 0.4 1.27 0.22 0.51 0.5 22.86 2.79 0.55 1.52 0.31 1.27 0.090 0.016 0.050 0.009 0.020 3.3 1.78 0.020 0.900 0.110 0.022 0.060 0.012 0.050 TYP. MAX. 25 7.8 0.130 0.070 MIN. inch TYP. MAX. 0.984 0.307
DIM.
4 (min.), 15 (max.) 8.13 5.71 0.311 0.320 0.225
P057H
M54/M74HCT240PU/241PU/244PU
SO20 MECHANICAL DATA
DIM. MIN. A a1 a2 b b1 C c1 D E e e3 F L M S 7.40 0.50 12.60 10.00 1.27 11.43 7.60 1.27 0.75 8 (max.) 0.291 0.19 13.00 10.65 0.35 0.23 0.50 45 (typ.) 0.496 0.393 0.050 0.450 0.299 0.050 0.029 0.512 0.419 0.10 mm TYP. MAX. 2.65 0.20 2.45 0.49 0.32 0.013 0.009 0.020 0.004 MIN. inch TYP. MAX. 0.104 0.007 0.096 0.019 0.012
P013L
M54/M74HCT240PU/241PU/244PU
Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsability for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may results from its use. No license is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. SGS-THOMSON Microelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of SGS-THOMSON Microelectonics. (c) 1994 SGS-THOMSON Microelectronics - All Rights Reserved SGS-THOMSON Microelectronics GROUP OF COMPANIES Australia - Brazil - France - Germany - Hong Kong - Italy - Japan - Korea - Malaysia - Malta - Morocco - The Netherlands Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A

▲Up To Search▲

Price & Availability of M74HCT244PU

	To Download M74HCT244PU Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .