CD74AC245 Datasheet, PDF (1/8 Pages) Texas Instruments – Octal-Bus Transceiver, Three-State, Non-Inverting

Data sheet acquired from Harris Semiconductor
SCHS245
September 1998
CD74AC245,
CD74ACT245
Octal-Bus Transceiver,
Three-State, Non-Inverting
[ /Title
(CD74
AC245
,
CD74
ACT24
5)
/Sub-
ject
(Octal-
Bus
Trans-
ceiver,
Three-
State,
Non-
Invert-
ing)
/Autho
r ()
/Key-
words
(Har-
ris
Semi-
con-
ductor,
Advan
ced
CMOS
, Harris
Semi-
con-
Features
• Buffered Inputs
• Typical Propagation Delay
- 4ns at V_CC = 5V, T_A = 25^oC, C_L = 50pF
• Exceeds 2kV ESD Protection MIL-STD-883, Method
3015
• SCR-Latchup-Resistant CMOS Process and Circuit
Design
• Speed of Bipolar FAST™/AS/S with Significantly
Reduced Power Consumption
• Balanced Propagation Delays
• AC Types Feature 1.5V to 5.5V Operation and
Balanced Noise Immunity at 30% of the Supply
• ±24mA Output Drive Current
- Fanout to 15 FAST™ ICs
- Drives 50Ω Transmission Lines
Description
The CD74AC245 and CD74ACT245 are octal-bus transceiv-
ers that utilize the Harris Advanced CMOS Logic technology.
They are non-inverting three-state bidirectional transceiver-
buffers 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.
Ordering Information
PART
NUMBER
TEMP.
RANGE (^oC)
PACKAGE
PKG.
NO.
CD74AC245E
-55 to 125
20 Ld PDIP E20.3
CD74ACT245E
-55 to 125
20 Ld PDIP E20.3
CD74AC245M
-55 to 125
20 Ld SOIC M20.3
CD74ACT245M
-55 to 125
20 Ld SOIC M20.3
CD74AC245SM
-55 to 125
20 Ld SSOP M20.15
CD74ACT245SM
-55 to 125
20 Ld SSOP M20.15
NOTES:
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 elec-
trical specifications. Please contact your local sales office or Harris
customer service for ordering information.
Pinout
CD74AC245, CD74ACT245
(PDIP, SSOP, SOIC)
TOP VIEW
DIR 1
A0 2
A1 3
A2 4
A3 5
A4 6
A5 7
A6 8
A7 9
GND 10
20 V_CC
19 OE
18 B0
17 B1
16 B2
15 B3
14 B4
13 B5
12 B6
11 B7
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
FAST™ is a Trademark of Fairchild Semiconductor.
Copyright © Harris Corporation 1998
1
File Number 1907.1