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INTEGRATED CIRCUITS
74LVC2373A 74LVCH2373A Octal D-type transparent latch with 5-volt tolerant inputs/outputs; damping resistor (3-State)
Product specification IC24 Data Handbook 1997 Mar 12
Philips Semiconductors
Philips Semiconductors
Product specification
Octal D-type transparent latch with 5-volt tolerant inputs/outputs; damping resistor (3-State)
74LVC2373A 74LVCH2373A
FEATURES
* 5-volt tolerant inputs/outputs, for interfacing with 5-volt logic * Supply voltage range of 2.7V to 3.6V * Complies with JEDEC standard no. 8-1A * CMOS low power consumption * Direct interface with TTL levels * High impedance when VCC = 0V * Bushold on all data inputs (74LVCH2373A only) * Integrated 30W damping resistor
DESCRIPTION
The 74LVC2373A/74LVCH2373A is a high performance, low-power, low-voltage Si-gate CMOS device and superior to most advanced CMOS compatible TTL families. Inputs can be driven from either 3.3V or 5V devices. This feature allows the use of these devices as translators in a mixed 3.3V/5V environment. The 74LVC2373A/74LVCH2373A is an octal D-type transparent latch featuring separate D-type inputs for each latch and 3-State outputs for bus oriented applications. A latch enable (LE) input and an output enable (OE) input are common to all internal latches. The `2373' consists of eight D-type transparent latches with 3-State true outputs. When LE is HIGH, data at the Dn inputs enters the latches. In this condition the latches are transparent, i.e., a latch output will change each time its corresponding D-input changes. When LE is LOW the latches store the information that was present at the D-inputs a set-up time preceding the HIGH-to-LOW transition of LE. When OE is LOW, the contents of the eight latches are available at the outputs. When OE is HIGH, the outputs go to the high impedance OFF-state. Operation of the OE input does not affect the state of the latches.
QUICK REFERENCE DATA
GND = 0V; Tamb = 25C; tr = tf v2.5 ns SYMBOL tPHL/tPLH CI CPD PARAMETER Propagation delay Dn to Qn LE to Qn Input capacitance Power dissipation capacitance per latch Notes 1, 2 CONDITIONS CL = 50pF VCC = 3.3V TYPICAL 4.4 5.0 5.0 20 UNIT ns pF pF
NOTES: 1. CPD is used to determine the dynamic power dissipation (PD in W) PD = CPD x VCC2 x fi ) (CL x VCC2 x fo) where: fi = input frequency in MHz; CL = output load capacity in pF; fo = output frequency in MHz; VCC = supply voltage in V; (CL x VCC2 x fo) = sum of the outputs. 2. The condition is VI = GND to VCC.
ORDERING AND PACKAGE INFORMATION
PACKAGES 20-Pin Plastic SO 20-Pin Plastic SSOP Type II 20-Pin Plastic TSSOP Type I 20-Pin Plastic SO 20-Pin Plastic SSOP Type II 20-Pin Plastic TSSOP Type I TEMPERATURE RANGE -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C OUTSIDE NORTH AMERICA 74LVC2373A D 74LVC2373A DB 74LVC2373A PW 74LVCH2373A D 74LVCH2373A DB 74LVCH2373A PW NORTH AMERICA 74LVC2373A D 74LVC2373A DB LVC2373APW DH 74LVCH2373A D 7LVCH2373A DB VCH2373APW DH PKG. DWG. # SOT163-1 SOT339-1 SOT360-1 SOT163-1 SOT339-1 SOT360-1
1997 Mar 12
2
853-1940 17843
Philips Semiconductors
Product specification
Octal D-type transparent latch with 5-volt tolerant inputs/outputs; damping resistor (3-State)
74LVC2373A 74LVCH2373A
PIN CONFIGURATION
OE Q0 D0 D1 Q1 Q2 D2 D3 Q3 GND 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 VCC Q7
LOGIC SYMBOL
11 LE 3 D7 D6 Q6 Q5 D5 D4 Q4 LE 4 7 8 13 14 17 18 D0 D1 D2 D3 D4 D5 D6 D7 OE Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7 2 5 6 9 12 15 16 19
SV00657
1
SV00658
PIN DESCRIPTION
PIN NUMBER 1 2, 5, 6, 9, 12, 15, 16, 19 3, 4, 7, 8, 13, 14, 17, 18 10 11 20 SYMBOL OE Q0-Q7 D0-D7 GND LE VCC FUNCTION Output enable input (active LOW) 3-State latch outputs
FUNCTIONAL DIAGRAM
3 4 7 D0 D1 D2 D3 D4 D5 D6 D7 LATCH 1 to 8 3-STATE OUTPUTS Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7 2 5 6 9 12 15 16 19
Data inputs Ground (0V) Latch enable input (active HIGH) Positive supply voltage
8 13 14 17 18
LOGIC SYMBOL (IEEE/IEC)
11 1 C1 EN1
11 1
LE OE
SV00660
3 1D 2
4 7 8 13 14 17 18
5 6 9 12 15 16 19
FUNCTION TABLE
OPERATING MODES Enable and read register (transparent mode) Latch and read register Latch register and disable outputs INPUTS OE L L L L H H LE H H L L L L Dn L H I h I h INTERNAL LATCHES L H L H L H OUTPUTS Q0 to Q7 L H L H Z Z
SV00659
H = HIGH voltage level h = HIGH voltage level one set-up time prior to the HIGH-to-LOW LE transition L = LOW voltage level I = LOW voltage level one set-up time prior to the HIGH-to-LOW LE transition X = Don't care Z = High impedance OFF-state
1997 Mar 12
3
Philips Semiconductors
Product specification
Octal D-type transparent latch with 5-volt tolerant inputs/outputs; damping resistor (3-State)
74LVC2373A 74LVCH2373A
LOGIC DIAGRAM
D0 D1 D2 D3 D4 D5 D6 D7
Q D LATCH 1 LE LE LE OE
Q D LATCH 2 LE LE
Q D LATCH 3 LE LE
Q D LATCH 4 LE LE
Q D LATCH 5 LE LE
Q D LATCH 6 LE LE
Q D LATCH 7 LE LE
Q D LATCH 8 LE LE
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
SV00661
RECOMMENDED OPERATING CONDITIONS
SYMBOL VCC VCC VI VI/O VO Tamb tr, tf PARAMETER DC supply voltage (for max. speed performance) DC supply voltage (for low-voltage applications) DC input voltage range DC input voltage range for I/Os DC output voltage range Operating free-air temperature range Input rise and fall times VCC = 1.2 to 2.7V VCC = 2.7 to 3.6V CONDITIONS LIMITS MIN 2.7 1.2 0 0 0 -40 0 0 MAX 3.6 3.6 5.5 VCC VCC +85 20 10 UNIT V V V V V C ns/V
ABSOLUTE MAXIMUM RATINGS1
In accordance with the Absolute Maximum Rating System (IEC 134). Voltages are referenced to GND (ground = 0V). SYMBOL VCC IIK VI VI/O IOK VOUT VOUT IOUT IGND, ICC Tstg PTOT PARAMETER DC supply voltage DC input diode current DC input voltage DC input voltage range for I/Os DC output diode current DC output voltage; output HIGH or LOW DC output voltage; output 3-State DC output source or sink current DC VCC or GND current Storage temperature range Power dissipation per package - plastic mini-pack (SO) - plastic shrink mini-pack (SSOP and TSSOP) above +70C derate linearly with 8 mW/K above +60C derate linearly with 5.5 mW/K VO uVCC or VO t 0 Note 2 Note 2 VO = 0 to VCC VI t0 Note 2 CONDITIONS RATING -0.5 to +6.5 -50 -0.5 to +5.5 -0.5 to VCC +0.5 50 -0.5 to VCC +0.5 -0.5 to +6.5 50 100 -60 to +150 500 500 UNIT V mA V V mA V V mA mA C
mW
NOTES: 1. Stresses beyond those listed may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. 2. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
1997 Mar 12
4
Philips Semiconductors
Product specification
Octal D-type transparent latch with 5-volt tolerant inputs/outputs; damping resistor (3-State)
74LVC2373A 74LVCH2373A
DC ELECTRICAL CHARACTERISTICS
Over recommended operating conditions. Voltages are referenced to GND (ground = 0V). LIMITS SYMBOL PARAMETER VCC = 1.2V VCC = 2.7 to 3.6V VCC = 1.2V VCC = 2.7 to 3.6V VCC = 3.0V; VI = VIH or VIL; IO = -100A VOH HIGH level output voltage VCC = 3.0V; VI = VIH or VIL; IO = -12mA VCC = 3.0V; VI = VIH or VIL; IO = -24mA VCC = 2.7V; VI = VIH or VIL; IO = -6mA7 VOH HIGH level output voltage VCC = 3.0V; VI = VIH or VIL; IO = -100A7 VCC = 3.0V; VI = VIH or VIL; IO = -12mA7 VO OL LOW level output voltage VCC = 3.0V; VI = VIH or VIL; IO = 100A VCC = 3.0V; VI = VIH or VIL; IO = 24mA VCC = 2.7V; VI = VIH or VIL; IO = 6mA7 VOL II IIHZ/IILZ IOZ ICC ICC IBHL IBHH IBHLO IBHHO LOW level output voltage Input leakage current Input current for common I/O pins 3-State output OFF-state current Quiescent supply current Additional quiescent supply current per input pin Bushold LOW sustaining current2, 3, 4 Bushold HIGH sustaining current2, 3, 4 Bushold LOW overdrive current2, 3, 5 Bushold HIGH overdrive current2, 3, 5 VCC = 3.0V; VI = VIH or VIL; IO = 100A7 VCC = 3.0V; VI = VIH or VIL; IO = VCC = 3.6V; VI = 5.5V or GND VCC = 3.6V; VI = VCC or GND VCC = 3.6V; VI = VIH or VIL; VO = VCC or GND VCC = 3.6V; VI = VCC or GND; IO = 0 VCC = 2.7V to 3.6V; VI = VCC -0.6V; IO = 0 VCC = 3.0V; VI =0.8V VCC = 3.0V; VI =2.0V VCC = 3.6V VCC = 3.6V 75 -75 500 -500 12mA7 Not for I/O pins 0.1 0.1 0.1 0.1 5 - - - - GND VCC*0.2 VCC*0.6 VCC*1.0 VCC*0.5 VCC*0.2 VCC*0.8 GND 0.20 0.55 0.40 0.20 0.55 5 15 10 20 500 - - - - A A A A A A A A A V V VCC V VCC V TEST CONDITIONS Temp = -40C to +85C MIN VIH VIL HIGH level Input voltage LOW level Input voltage VCC 2.0 GND 0.8 TYP1 MAX V V UNIT
NOTES: 1. All typical values are at VCC = 3.3V and Tamb = 25C. 2. Valid for data inputs of bushold parts (LVCH-A) only. 3. For data inputs only, control inputs do not have a bushold circuit. 4. The specified sustaining current at the data inputs do not have a bushold circuit. 5. The specified overdrive current at the data input forces the data input to the opposite logic input state. 6. For bushold parts, the bushold circuit is switched off when VI exceeds VCC allowing 5.5V on the input terminal. 7. For data outputs of damping resistor parts only.
1997 Mar 12
5
Philips Semiconductors
Product specification
Octal D-type transparent latch with 5-volt tolerant inputs/outputs; damping resistor (3-State)
74LVC2373A 74LVCH2373A
AC CHARACTERISTICS
GND = 0 V; tr = tf v 2.5 ns; CL = 50 pF LIMITS SYMBOL PARAMETER Propagation delay Dn to Qn Propagation delay LE to Qn 3-State output enable time OE to Qn 3-State output disble time OE to Qn LE pulse width HIGH Set-up time Dn to LE Hold time Dn to LE WAVEFORM VCC = 3.3V 0.3V MIN tPHL/tPLH tPHL/tPLH tPZH/tPZL tPHZ/tPLZ tW tsu th Figures 1, 5 Figures 2, 5 Figures 3, 5 Figures 3, 5 Figure 2 Figure 4 Figure 4 1.5 1.5 1.5 1.5 4.0 2.0 2.0 TYP1 - - - - - - - MAX 8.5 9.5 9.0 6.0 - - - VCC = 2.7V MIN 1.5 1.5 1.5 1.5 4.0 3.0 3.0 MAX 9.5 11 11 6.5 - - - VCC = 1.2V TYP - - - - - - - ns ns ns ns ns ns ns UNIT
NOTE: 1. These typical values are at VCC = 3.3V and Tamb = 25C.
AC WAVEFORMS
VM = 1.5 V at VCC w 2.7 V VM = 0.5 S VCC at VCC < 2.7 V VOL and VOH are the typical output voltage drop that occur with the output load. VX = VOL + 0.3 V at VCC 2.7 V VX - VOL + 0.1 VCC at VCC < 2.7 V VY = VOH - 0.3 V at VCC 2.7 V VY = VOH - 0.1 VCC at VCC < 2.7 V
VI INPUTS GND tPHL VOH OUTPUTS VOL VM tPLH VOH Qn OUTPUT VOL VM VM VI LE INPUT GND tW tPHL tPLH VM
SV00690
SV00691
Figure 1. nput (Dn) to output (Qn) propagation delays
Figure 2. Latch enable input (LE) pulse width, the latch enable input to output (Qn) propagation delays
1997 Mar 12
6
Philips Semiconductors
Product specification
Octal D-type transparent latch with 5-volt tolerant inputs/outputs; damping resistor (3-State)
74LVC2373A 74LVCH2373A
TEST CIRCUIT
VI OE INPUT GND tPLZ VCC OUTPUT LOW-to-OFF OFF-to-LOW VOL tPHZ VOH OUTPUT HIGH-to-OFF OFF-to-HIGH GND outputs enabled VM VX tPZH Test VY VM VCC t 2.7V 2.7V - 3.6V outputs disabled outputs enabled VI VCC 2.7V tPLH/tPHL tPLZ/tPZL tPHZ/tPZH S1 Open 2 < VCC GND tPZL PULSE GENERATOR VI D.U.T. RT CL 50pF 500 VO 500 VM VCC S1 2 < VCC Open GND
SY00003
Figure 5. Load circuitry for switching times
SV00692
Figure 3. 3-State enable and disable times
VI Dn INPUT
GND
VI
LE INPUT GND
NOTE: The shaded areas indicate when the input is permitted to change for predictable output performance.
1997 Mar 12
EEEEEEEEEEEE EEEEEEEEEEEE EEEEEEEEEEEE
VM th th tsu tsu VM
SV00693
Figure 4. Data set-up and hold times for the Dn input to the LE input
7
Philips Semiconductors
Product specification
Octal D-type transparent latch with 5-volt tolerant inputs/outputs; damping resistor (3-State)
74LVC2373A 74LVCH2373A
SO20: plastic small outline package; 20 leads; body width 7.5 mm
SOT163-1
1997 Mar 12
8
Philips Semiconductors
Product specification
Octal D-type transparent latch with 5-volt tolerant inputs/outputs; damping resistor (3-State)
74LVC2373A 74LVCH2373A
SSOP20: plastic shrink small outline package; 20 leads; body width 5.3 mm
SOT339-1
1997 Mar 12
9
Philips Semiconductors
Product specification
Octal D-type transparent latch with 5-volt tolerant inputs/outputs; damping resistor (3-State)
74LVC2373A 74LVCH2373A
TSSOP20: plastic thin shrink small outline package; 20 leads; body width 4.4 mm
SOT360-1
1997 Mar 12
10
Philips Semiconductors
Product specification
Octal D-type transparent latch with 5-volt tolerant inputs/outputs; damping resistor (3-State)
74LVC2373A 74LVCH2373A
NOTES
1997 Mar 12
11
Philips Semiconductors
Product specification
Octal D-type transparent latch with 5-volt tolerant inputs/outputs; damping resistor (3-State)
74LVC2373A 74LVCH2373A
DEFINITIONS
Data Sheet Identification
Objective Specification
Product Status
Formative or in Design
Definition
This data sheet contains the design target or goal specifications for product development. Specifications may change in any manner without notice. This data sheet contains preliminary data, and supplementary data will be published at a later date. Philips Semiconductors reserves the right to make changes at any time without notice in order to improve design and supply the best possible product. This data sheet contains Final Specifications. Philips Semiconductors reserves the right to make changes at any time without notice, in order to improve design and supply the best possible product.
Preliminary Specification
Preproduction Product
Product Specification
Full Production
Philips Semiconductors and Philips Electronics North America Corporation reserve the right to make changes, without notice, in the products, including circuits, standard cells, and/or software, described or contained herein in order to improve design and/or performance. Philips Semiconductors assumes no responsibility or liability for the use of any of these products, conveys no license or title under any patent, copyright, or mask work right to these products, and makes no representations or warranties that these products are free from patent, copyright, or mask work right infringement, unless otherwise specified. Applications that are described herein for any of these products are for illustrative purposes only. Philips Semiconductors makes no representation or warranty that such applications will be suitable for the specified use without further testing or modification. LIFE SUPPORT APPLICATIONS Philips Semiconductors and Philips Electronics North America Corporation Products are not designed for use in life support appliances, devices, or systems where malfunction of a Philips Semiconductors and Philips Electronics North America Corporation Product can reasonably be expected to result in a personal injury. Philips Semiconductors and Philips Electronics North America Corporation customers using or selling Philips Semiconductors and Philips Electronics North America Corporation Products for use in such applications do so at their own risk and agree to fully indemnify Philips Semiconductors and Philips Electronics North America Corporation for any damages resulting from such improper use or sale. Philips Semiconductors 811 East Arques Avenue P.O. Box 3409 Sunnyvale, California 94088-3409 Telephone 800-234-7381 (c) Copyright Philips Electronics North America Corporation 1997 All rights reserved. Printed in U.S.A.
Philips Semiconductors
1997 Mar 12 12

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