SN54ABT16244 Datasheet, PDF (1/12 Pages) Texas Instruments – 16-BIT BUFFERS/DRIVERS WITH 3-STATE OUTPUTS

www.ti.com
FEATURES
• Members of the Texas Instruments
Widebus™ Family
• State-of-the-Art EPIC-IIB™ BiCMOS Design
Significantly Reduces Power Dissipation
• Latch-Up Performance Exceeds 500 mA Per
JESD 70
• Typical V_OLP (Output Ground Bounce) <1 V
at V_CC = 5 V, T_A = 25°C
• Distributed V_CC and GND Pin Configuration
Minimizes High-Speed Switching Noise
• Flow-Through Architecture Optimizes PCB
Layout
• High-Drive Outputs (–32-mA I_OH, 64-mA I_OL)
• Package Options Include Plastic 300-mil
Shrink Small-Outline (DL), Thin Shrink
Small-Outline (DGG), and Thin Very
Small-Outline (DGV) Packages and 380-mil
Fine-Pitch Ceramic Flat (WD) Package
Using 25-mil Center-to-Center Spacings
DESCRIPTION
The SN54ABT16244 and SN74ABT16244A are 16-bit
buffers and 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. These
devices can be used as four 4-bit buffers, two 8-bit
buffers, or one 16-bit buffer. These devices provide
true outputs and symmetrical OE (active-low
output-enable) inputs.
SN54ABT16244, SN74ABT16244A
16-BIT BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCBS073H – SEPTEMBER 1991 – REVISED AUGUST 2005
SN54ABT16244 . . . WD PACKAGE
SN74ABT16244A . . . DGG, DGV, OR DL PACKAGE
(TOP VIEW)
1OE 1
1Y1 2
1Y2 ³
GND 4
1Y3 5
1Y4 6
V_CC 7
2Y1 ⁸
2Y2 ⁹
GND ¹⁰
2Y3 11
2Y4 12
3Y1 13
3Y2 ¹⁴
GND ¹⁵
3Y3 ¹⁶
3Y4 ¹⁷
V_CC 18
4Y1 ¹⁹
4Y2 ²⁰
GND ²¹
4Y3 ²²
4Y4 ²³
4OE ²⁴
48 2OE
47 1A1
46 _1A2
45 GND
44 1A3
43 1A4
42 V_CC
41 _2A1
40 _2A2
39 _GND
38 2A3
37 2A4
36 3A1
35 _3A2
34 _GND
33 _3A3
32 _3A4
31 V_CC
30 _4A1
29 _4A2
28 _GND
27 _4A3
26 _4A4
25 _3OE
To ensure the high-impedance state during power up or power down, OE should be tied to V_CC through a pullup
resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
The SN54ABT16244 is characterized for operation over the full military temperature range of –55°C to 125°C.
The SN74ABT16244A is characterized for operation from –40°C to 85°C.
FUNCTION TABLE
(EACH BUFFER)
INPUTS
OE
A
L
H
L
L
H
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.
Widebus, EPIC-IIB are trademarks of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 1991–2005, Texas Instruments Incorporated
On products compliant to MIL-PRF-38535, all parameters are
tested unless otherwise noted. On all other products, production
processing does not necessarily include testing of all parameters.