CD54/74AC245,
CD54/74ACT245
Data sheet acquired from Harris Semiconductor
SCHS245B
Octal-Bus Transceiver,
Three-State, Non-Inverting
September 1998 - Revised October 2000
Features
Description
• Buffered Inputs
The ’AC245 and ’ACT245 are octal-bus transceivers that
utilize Advanced CMOS Logic technology. They are non-
• Typical Propagation Delay
o
inverting
three-state
bidirectional
transceiver-buffers
- 4ns at V
= 5V, T = 25 C, C = 50pF
A L
CC
intended for two-way transmission from “A” bus to “B” bus or
“B” bus to “A”. The logic level present on the direction input
(DIR) determines the data direction. When the output enable
input (OE) is HIGH, the outputs are in the high-impedance
state.
• Exceeds 2kV ESD Protection per MIL-STD-883,
Method 3015
• SCR-Latchup-Resistant CMOS Process and Circuit
Design
[ /Title
(CD74
AC245
,
CD74
ACT24
5)
/Sub-
ject
(Octal-
Bus
Trans-
ceiver,
Three-
State,
Non-
Invert-
ing)
Ordering Information
• Speed of Bipolar FAST™/AS/S with Significantly
Reduced Power Consumption
PART
TEMP.
o
NUMBER
RANGE ( C)
-55 to 125
-55 to 125
-55 to 125
-55 to 125
-55 to 125
-55 to 125
-55 to 125
-55 to 125
PACKAGE
20 Ld CERDIP
20 Ld PDIP
• Balanced Propagation Delays
CD54AC245F3A
CD74AC245E
CD74AC245M
CD74AC245SM
CD54ACT245F3A
CD74ACT245E
CD74ACT245M
CD74ACT245SM
NOTES:
• AC Types Feature 1.5V to 5.5V Operation and
Balanced Noise Immunity at 30% of the Supply
20 Ld SOIC
20 Ld SSOP
20 Ld CERDIP
20 Ld PDIP
• ±24mA Output Drive Current
- Fanout to 15 FAST™ ICs
- Drives 50Ω Transmission Lines
20 Ld SOIC
20 Ld SSOP
1. When ordering, use the entire part number. Add the suffix 96 to
obtain the variant in the tape and reel.
2. Wafer and die for this part number is available which meets all
electrical specifications. Please contact your local TI sales office or
customer service for ordering information.
/Autho
r ()
/Key-
words
(Har-
ris
Pinout
CD54AC245, CD54ACT245
(CERDIP)
CD74AC245, CD74ACT245
(PDIP, SOIC, SSOP)
TOP VIEW
Semi-
con-
ductor,
Advan
ced
CMOS
,Harris
Semi-
con-
1
2
3
4
5
6
7
8
9
V
DIR
A0
A1
A2
A3
A4
A5
A6
A7
20
19
CC
OE
18 B0
17 B1
16 B2
15 B3
14 B4
13 B5
12
B6
GND 10
11 B7
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
FAST™ is a Trademark of Fairchild Semiconductor.
1
Copyright © 2000, Texas Instruments Incorporated