74VHC373
器件描述：Octal D-Type Latch with 3-STATE Outputs
器件厂商：FAIRCHILD [Fairchild Semiconductor]
文件大小：104.54KB，共8页
Sponsor by e络盟器件资料摘要：
© 2005 Fairchild Semiconductor Corporation DS011555 www.fairchildsemi.com
February 1993
Revised April 2005
7
4
VH
C37
3
Oct
a
l
D-
T
ype Lat
ch
w
i
t
h
3-
ST
A
T
E
O
u
tput
s
74VHC373
Octal D-Type Latch with 3-STATE Outputs
General Description
The VHC373 is an advanced high speed CMOS octal D-
type latch with 3-STATE output fabricated with silicon gate
CMOS technology. It achieves the high speed operation
similar to equivalent Bipolar Schottky TTL while maintain-
ing the CMOS low power dissipation. This 8-bit D-type
latch is controlled by a latch enable input (LE) and an out-
put enable input (OE). The latches appear transparent to
data when latch enable (LE) is HIGH. When LE is LOW, the
data that meets the setup time is LATCHED. When the OE
input is HIGH, the eight outputs are in a high impedance
state.
An input protection circuit ensures that 0V to 7V can be
applied to the input pins without regard to the supply volt-
age. This device can be used to interface 5V to 3V systems
and two supply systems such as battery back up. This cir-
cuit prevents device destruction due to mismatched supply
and input voltages.
Features
a73 High Speed: t
PD
c32 5.0 ns (typ) @ V
CC
c32 5V
a73 High Noise Immunity: V
NIH
c32 V
NIL
c32 28% V
CC
(Min)
a73 Power Down Protection is provided on all inputs
a73 Low Noise: V
OLP
c32 0.6V (typ)
a73 Low Power Dissipation: I
CC
c32 4 c80A (Max) @ T
A
c32 25c113C
a73 Pin and Function Compatible with 74HC373
Ordering Code:
Surface mount packages are also available on Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Pb-Free package per JEDEC J-STD-020B.
Logic Symbol
IEEE/IEC
Connection Diagram
Order Number Package Number Package Description
74VHC373M M20B 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide
74VHC373SJ M20D Pb-Free 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74VHC373MTC MTC20 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
74VHC373N N20A 20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide
February 1993
Revised April 2005
7
4
VH
C37
3
Oct
a
l
D-
T
ype Lat
ch
w
i
t
h
3-
ST
A
T
E
O
u
tput
s
74VHC373
Octal D-Type Latch with 3-STATE Outputs
General Description
The VHC373 is an advanced high speed CMOS octal D-
type latch with 3-STATE output fabricated with silicon gate
CMOS technology. It achieves the high speed operation
similar to equivalent Bipolar Schottky TTL while maintain-
ing the CMOS low power dissipation. This 8-bit D-type
latch is controlled by a latch enable input (LE) and an out-
put enable input (OE). The latches appear transparent to
data when latch enable (LE) is HIGH. When LE is LOW, the
data that meets the setup time is LATCHED. When the OE
input is HIGH, the eight outputs are in a high impedance
state.
An input protection circuit ensures that 0V to 7V can be
applied to the input pins without regard to the supply volt-
age. This device can be used to interface 5V to 3V systems
and two supply systems such as battery back up. This cir-
cuit prevents device destruction due to mismatched supply
and input voltages.
Features
a73 High Speed: t
PD
c32 5.0 ns (typ) @ V
CC
c32 5V
a73 High Noise Immunity: V
NIH
c32 V
NIL
c32 28% V
CC
(Min)
a73 Power Down Protection is provided on all inputs
a73 Low Noise: V
OLP
c32 0.6V (typ)
a73 Low Power Dissipation: I
CC
c32 4 c80A (Max) @ T
A
c32 25c113C
a73 Pin and Function Compatible with 74HC373
Ordering Code:
Surface mount packages are also available on Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Pb-Free package per JEDEC J-STD-020B.
Logic Symbol
IEEE/IEC
Connection Diagram
Order Number Package Number Package Description
74VHC373M M20B 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide
74VHC373SJ M20D Pb-Free 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74VHC373MTC MTC20 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
74VHC373N N20A 20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide