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74VHC245 Octal Bidirectional Transceiver with 3-STATE Outputs
November 1992
Revised April 2005
74VHC245
Octal Bidirectional Transceiver with 3-STATE Outputs
General Description
The VHC245 is an advanced high speed CMOS octal bus
transceiver fabricated with silicon gate CMOS technology.
It achieves high speed operation similar to equivalent Bipo-
lar Schottky TTL while maintaining the CMOS low power
dissipation. The VHC245 is intended for bidirectional asyn-
chronous communication between data busses. The direc-
tion of data transmission is determined by the level of the
T/R input. The enable input can be used to disable the
device so that the busses are effectively isolated. All inputs
are equipped with protection circuits against static dis-
charge.
Features
s
High Speed: t
PD
4.0 ns (typ) at V
CC
V
NIL
5V
s
High Noise Immunity: V
NIH
s
Low Noise: V
OLP
28% V
CC
(Min)
s
Power Down Protection is provided on all inputs
0.9V (typ)
25
q
C
s
Low Power Dissipation:
I
CC
4
P
A (Max) @ T
A
s
Pin and Function Compatible with 74HC245
Ordering Code:
Order Number
74VHC245M
74VHC245SJ
74VHC245MTC
74VHC245N
Package Number
M20B
M20D
MTC20
N20A
Package Description
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide
Pb-Free 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
京公网安备 11010802033920号
EEWORLD
