MC74VHC573
Octal D−Type Latch with
3−State Output
The MC74VHC573 is an advanced high speed CMOS octal latch
with 3−state output fabricated with silicon gate CMOS technology. It
achieves high speed operation similar to equivalent Bipolar Schottky
TTL while maintaining CMOS low power dissipation.
This 8−bit D−type latch is controlled by a latch enable input and an
output enable input. When the output enable input is high, the eight
outputs are in a high impedance state.
The internal circuit is composed of three stages, including a buffer
output which provides high noise immunity and stable output. The
inputs tolerate voltages up to 7V, allowing the interface of 5V systems
to 3V systems.
http://onsemi.com
MARKING
DIAGRAMS
20
SOIC−20 WIDE
DW SUFFIX
CASE 751D
VHC573
AWLYYWW
20
1
1
20
VHC
573
ALYW
TSSOP−20
DT SUFFIX
CASE 948E
20
• High Speed: t = 4.5ns (Typ) at V = 5V
PD
CC
1
• Low Power Dissipation: I = 4μA (Max) at T = 25°C
CC
A
1
• High Noise Immunity: V
= V = 28% V
NIL CC
NIH
20
1
• Power Down Protection Provided on Inputs
• Balanced Propagation Delays
• Designed for 2V to 5.5V Operating Range
SOIC EIAJ
M SUFFIX
CASE 967
VHC573
AWLYYWW
20
1
• Low Noise: V
= 1.2V (Max)
OLP
A
= Assembly Location
WL = Wafer Lot
YY = Year
WW = Work Week
• Pin and Function Compatible with Other Standard Logic Families
• Latchup Performance Exceeds 300mA
• ESD Performance: HBM > 2000V; Machine Model > 200V
• Chip Complexity: 218 FETs or 54.5 Equivalent Gates
w These devices are available in Pb−free package(s). Specifications herein
apply to both standard and Pb−free devices. Please see our website at
www.onsemi.com for specific Pb−free orderable part numbers, or
contact your local ON Semiconductor sales office or representative.
PIN ASSIGNMENT
1
20
V
CC
OE
D0
D1
D2
2
3
4
19
18
17
Q0
Q1
Q2
D3
D4
D5
D6
D7
5
6
7
8
9
16
15
14
13
12
11
Q3
Q4
Q5
Q6
Q7
GND 10
LE
ORDERING INFORMATION
Device
Package
Shipping
MC74VHC573DW
SOIC−WIDE
38 / Rail
MC74VHC573DWR2
SOIC−WIDE 1000 / Reel
TSSOP−20 75 / Rail
TSSOP−20 2500 / Reel
SOIC EIAJ 40 / Rail
MC74VHC573DT
MC74VHC573DTR2
MC74VHC573M
MC74VHC573MEL
SOIC EIAJ 2000 / Reel
©
Semiconductor Components Industries, LLC, 2006
1
Publication Order Number:
March, 2006 − Rev. 5
MC74VHC573/D