SN54ABT5403, SN74ABT5403
12-BIT LINE/MEMORY DRIVERS
WITH 3-STATE OUTPUTS
SCBS236B – JUNE 1992 – REVISED JANUARY 1997
SN54ABT5403 . . . JT PACKAGE
SN74ABT5403 . . . DW PACKAGE
(TOP VIEW)
Output Ports Have Equivalent 25-Ω Series
Resistors, So No External Resistors Are
Required
State-of-the-Art EPIC-ΙΙB BiCMOS Design
Significantly Reduces Power Dissipation
Y1
Y2
Y3
Y4
Y5
Y6
GND
Y7
D1
D2
D3
D4
D5
D6
D7
1
2
3
4
5
6
7
8
9
28
27
26
25
24
23
22
21
20
Latch-Up Performance Exceeds 500 mA Per
JEDEC Standard JESD-17
Typical V
(Output Ground Bounce) < 1 V
OLP
at V
= 5 V, T = 25°C
CC
A
Typical V
(Output Undershoot) < 0.5 V at
OLV
V
= 5 V, T = 25°C
V
CC
CC
A
Y8
D8
Package Options Include Plastic
Small-Outline (DW) Package, Ceramic Chip
Carriers (FK), and DIPs (JT)
Y9 10
19 D9
Y10
Y11
D10
D11
11
12
18
17
Y12 13
OE1 14
16 D12
15 OE2
description
These 12-bit buffers and line drivers are designed
specifically to improve both the performance and
density of 3-state memory address drivers, clock
drivers, and bus-oriented receivers and
transmitters.
SN54ABT5403 . . . FK PACKAGE
(TOP VIEW)
The 3-state control gate is a 2-input AND gate with
active-low inputs so that if either output-enable
(OE1or OE2)inputishigh, all12outputsareinthe
high-impedance state. These devices provide
inverted data.
4
3
2
1
28 27 26
25
5
D3
D2
D1
Y1
Y2
Y3
Y4
D10
D11
D12
OE2
OE1
Y12
Y11
6
24
23
22
21
20
19
7
8
The outputs, which are designed to source or sink
up to 12 mA, include equivalent 25-Ω series
resistors to reduce overshoot and undershoot.
9
10
11
12 13 14 15 16 17 18
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 SN54ABT5403 is characterized for operation over the full military temperature range of –55°C to 125°C.
The SN74ABT5403 is characterized for operation from –40°C to 85°C.
FUNCTION TABLE
INPUTS
OUTPUT
Y
OE1
L
OE2
L
D
L
H
L
L
L
H
X
X
H
X
Z
Z
X
H
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-ΙΙB is a trademark of Texas Instruments Incorporated.
Copyright 1997, Texas Instruments Incorporated
UNLESS OTHERWISE NOTED this document contains PRODUCTION
DATA information 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.
1
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