SN54HC163_15 Datasheet, PDF (1/27 Pages) Texas Instruments – 4-BIT SYNCHRONOUS BINARY COUNTERS

SN54HC163, SN74HC163
4ĆBIT SYNCHRONOUS BINARY COUNTERS
D Wide Operating Voltage Range of 2 V to 6 V
D Outputs Can Drive Up To 10 LSTTL Loads
D Low Power Consumption, 80-µA Max I_CC
D Typical t_pd = 14 ns
D ±4-mA Output Drive at 5 V
D Low Input Current of 1 µA Max
D Internal Look-Ahead for Fast Counting
D Carry Output for n-Bit Cascading
D Synchronous Counting
D Synchronously Programmable
description/ordering information
These synchronous, presettable counters feature
an internal carry look-ahead for application in
high-speed counting designs. The ’HC163
devices are 4-bit binary counters. Synchronous
operation is provided by having all flip-flops
clocked simultaneously so that the outputs
change coincident with each other when
instructed by the count-enable (ENP, ENT) inputs
and internal gating. This mode of operation
eliminates the output counting spikes normally
associated with synchronous (ripple-clock)
counters. A buffered clock (CLK) input triggers the
four flip-flops on the rising (positive-going) edge of
the clock waveform.
SCLS298D − JANUARY 1996 − REVISED − OCTOBER 2003
SN54HC163 . . . J OR W PACKAGE
SN74HC163 . . . D, DB, N, NS, OR PW PACKAGE
(TOP VIEW)
CLR 1
CLK 2
A3
B4
C5
D6
ENP 7
GND 8
16 V_CC
15 RCO
14 Q_A
13 Q_B
12 Q_C
11 Q_D
10 ENT
9 LOAD
SN54HC163 . . . FK PACKAGE
(TOP VIEW)
3 2 1 20 19
A4
18 Q_A
B5
17 Q_B
NC 6
16 NC
C7
15 Q_C
D
8
14
9 10 11 12 13
Q_D
NC − No internal connection
ORDERING INFORMATION
TA
PACKAGE†
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
PDIP − N
Tube of 25
SN74HC163N
SN74HC163N
Tube of 40
SN74HC163D
SOIC − D
Reel of 2500
Reel of 250
SN74HC163DR
SN74HC163DT
HC163
−40°C to 85°C
SOP − NS
SSOP − DB
Reel of 2000
Reel of 2000
SN74HC163NSR
SN74HC163DBR
HC163
HC163
Tube of 90
SN74HC163PW
TSSOP − PW
Reel of 2000
Reel of 250
SN74HC163PWR
SN74HC163PWT
HC163
CDIP − J
Tube of 25
SNJ54HC163J
SNJ54HC163J
−55°C to 125°C CFP − W
Tube of 150
SNJ54HC163W
SNJ54HC163W
LCCC − FK
Tube of 55
SNJ54HC163FK
SNJ54HC163FK
† _{Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are}
available at www.ti.com/sc/package.
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.
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.
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265
Copyright  2003, Texas Instruments Incorporated
On products compliant to MILĆPRFĆ38535, all parameters are tested
unless otherwise noted. On all other products, production
processing does not necessarily include testing of all parameters.
1