SN74ALVCH162832
1-BIT TO 4-BIT ADDRESS REGISTER/DRIVER
WITH 3-STATE OUTPUTS
SCAS588F – MAY 1997 – REVISED JUNE 1999
DGG PACKAGE
(TOP VIEW)
Member of the Texas Instruments
Widebus Family
EPIC (Enhanced-Performance Implanted
CMOS) Submicron Process
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4Y1
3Y1
GND
2Y1
1Y2
2Y2
GND
3Y2
4Y2
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Output Ports Have Equivalent 26-Ω Series
Resistors, So No External Resistors Are
Required
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4
5
1Y1
ESD Protection Exceeds 2000 V Per
MIL-STD-883, Method 3015; Exceeds 200 V
Using Machine Model (C = 200 pF, R = 0)
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V
V
CC
A1
CC
7
1Y3
2Y3
GND
3Y3
4Y3
GND
8
GND
A2
GND
A3
9
Latch-Up Performance Exceeds 250 mA Per
JESD 17
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Bus Hold on Data Inputs Eliminates the
Need for External Pullup/Pulldown
Resistors
V
CC
NC
GND
CLK
OE1
OE2
SEL
GND
A4
V
CC
GND
1Y4
2Y4
3Y4
4Y4
GND
1Y5
2Y5
Packaged in Thin Shrink Small-Outline
Package
NOTE: For tape and reel order entry:
The DGGR package is abbreviated to GR.
description
This 1-bit to 4-bit address register/driver is
A5
designed for 1.65-V to 3.6-V V
operation.
CC
V
V
CC
CC
This device is ideal for use in applications in which
a single address bus is driving four separate
memory locations. The SN74ALVCH162832 can
be used as a buffer or a register, depending on the
logic level of the select (SEL) input.
GND
A6
GND
A7
3Y5
4Y5
GND
GND
V
V
CC
CC
4Y7
3Y7
GND
2Y7
1Y7
1Y6
2Y6
GND
3Y6
4Y6
WhenSELisalogichigh, thedeviceisinthebuffer
mode. The outputs follow the inputs and are
controlled by the two output-enable (OE) inputs.
Each OE controls two groups of seven outputs.
When SEL is a logic low, the device is in the
register mode. The register is an edge-triggered
D-type flip-flop. On the positive transition of the
clock (CLK) input, data at the A inputs is stored in
the internal registers. OE controls operate the
same as in the buffer mode.
NC – No internal connection
When OE is a logic low, the outputs are in a normal logic state (high or low logic level). When OE is a logic high,
the outputs are in the high-impedance state.
Neither SEL nor OE affect the internal operation of the flip-flops. Old data can be retained or new data can be
entered while the outputs are in the high-impedance state.
The outputs, which are designed to sink up to 12 mA, include equivalent 26-Ω resistors to reduce overshoot
and undershoot.
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.
Copyright 1999, 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.
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POST OFFICE BOX 655303 • DALLAS, TEXAS 75265