SN54ACT16244, 74ACT16244
16-BIT BUFFERS/LINE DRIVERS
WITH 3-STATE OUTPUTS
SCAS116B – MARCH 1990 – REVISED APRIL 1996
D
D
D
D
D
D
D
D
Members of the Texas Instruments
Widebus
™
Family
Inputs Are TTL-Voltage Compatible
3-State Outputs Drive Bus Lines or Buffer
Memory Address Registers
Flow-Through Architecture Optimizes
PCB Layout
Distributed V
CC
and GND Pin
Configurations Minimize High-Speed
Switching Noise
EPIC
™
(Enhanced-Performance Implanted
CMOS) 1-
m
m Process
500-mA Typical Latch-Up Immunity at
125°C
Package Options Include Plastic Shrink
Small-Outline (DL) and Thin Shrink
Small-Outline (DGG) Packages, and 380-mil
Fine-Pitch Ceramic Flat (WD) Packages
Using 25-mil Center-to-Center Pin Spacings
SN54ACT16244 . . . WD PACKAGE
74ACT16244 . . . DGG OR DL PACKAGE
(TOP VIEW)
description
The SN54ACT16244 and 74ACT16244 are 16-bit
buffers/line drivers designed specifically to
improve both the performance and density of
3-state memory address drivers, clock drivers,
and bus-oriented receivers and transmitters.
They can be used as four 4-bit buffers, two 8-bit
buffers, or one 16-bit buffer. The devices provide
true outputs and symmetrical OE (active-low)
output-enable inputs.
1OE
1Y1
1Y2
GND
1Y3
1Y4
V
CC
2Y1
2Y2
GND
2Y3
2Y4
3Y1
3Y2
GND
3Y3
3Y4
V
CC
4Y1
4Y2
GND
4Y3
4Y4
4OE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
2OE
1A1
1A2
GND
1A3
1A4
V
CC
2A1
2A2
GND
2A3
2A4
3A1
3A2
GND
3A3
3A4
V
CC
4A1
4A2
GND
4A3
4A4
3OE
The 74ACT16244 is packaged in TI’s shrink small-outline package, which provides twice the I/O pin count and
functionality of standard small-outline packages in the same printed-circuit-board area.
The SN54ACT16244 is characterized for operation over the full military temperature range of –55°C to 125°C.
The 74ACT16244 is characterized for operation from –40°C to 85°C.
FUNCTION TABLE
(each driver)
INPUTS
OE
L
L
H
A
H
L
X
OUTPUT
Y
H
L
Z
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
EPIC and Widebus are trademarks of Texas Instruments Incorporated.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright
©
1996, Texas Instruments Incorporated
POST OFFICE BOX 655303
•
DALLAS, TEXAS 75265
1
TAOS [ TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS ]
