CY54FCT163T_08 Datasheet, PDF (1/12 Pages) Texas Instruments – 4-BIT BINARY COUNTERS

CY54FCT163T, CY74FCT163T
4-BIT BINARY COUNTERS
D Function, Pinout, and Drive Compatible
With FCT and F Logic
D Reduced V_OH (Typically = 3.3 V) Versions of
Equivalent FCT Functions
D Edge-Rate Control Circuitry for
Significantly Improved Noise
Characteristics
D I_off Supports Partial-Power-Down Mode
Operation
D ESD Protection Exceeds JESD 22
– 2000-V Human-Body Model (A114-A)
– 200-V Machine Model (A115-A)
– 1000-V Charged-Device Model (C101)
D Matched Rise and Fall Times
D Fully Compatible With TTL Input and
Output Logic Levels
D CY54FCT163T
– 32-mA Output Sink Current
– 12-mA Output Source Current
D CY74FCT163T
– 64-mA Output Sink Current
– 32-mA Output Source Current
SCCS015A – MAY 1994 – REVISED OCTOBER 2001
CY74FCT163CT . . . Q OR SO PACKAGE
(TOP VIEW)
SR ₁
CP 2
P₀ 3
P₁ 4
P₂ 5
P₃ 6
CEP 7
GND 8
16 ^V_CC
15 TC
14 Q₀
13 Q₁
12 Q₂
11 Q₃
10 CET
9 PE
CY54FCT163T . . . L PACKAGE
(TOP VIEW)
3 2 1 20 19
P_{0 4}
18 ^Q0
P₁ 5
17 Q₁
NC 6
16 NC
P₂ 7
15 Q₂
P₃ 8
14 Q₃
9 10 11 12 13
description
The ’FCT163T devices are high-speed
NC – No internal connection
synchronous modulo-16 binary counters. They
are synchronously presettable for application in
programmable dividers. These devices have two
types of count-enable (CEP and CET) inputs, plus a terminal-count (TC) output for versatility in forming
synchronous multistaged counters. The ’FCT163T devices have a synchronous-reset (SR) input that overrides
counting and parallel loading, and allows the outputs to be reset simultaneously on the rising edge of the clock.
These devices are fully specified for partial-power-down applications using I_off. The I_off circuitry disables the
outputs, preventing damaging current backflow through the device when it is powered down.
NAME
CEP
CET
CP
SR
P
PE
Q
TC
PIN DESCRIPTION
DESCRIPTION
Count-enable parallel input
Count-enable trickle input
Clock pulse input (active rising edge)
Synchronous-reset input (active low)
Parallel data inputs
Parallel-enable input (active low)
Flip-flop outputs
Terminal-count output
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  2001, 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.
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