CY74FCT2827T_14 Datasheet, PDF (1/12 Pages) Texas Instruments – 10-BIT BUFFER WITH 3-STATE OUTPUTS

D Function and Pinout Compatible With FCT,
F, and AM29827 Logic
D 25-Ω Output Series Resistors Reduce
Transmission-Line Reflection Noise
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 12-mA Output Sink Current
15-mA Output Source Current
D 3-State Outputs
CY74FCT2827T
10-BIT BUFFER
WITH 3-STATE OUTPUTS
SCCS045A – MAY 1994 – REVISED SEPTEMBER 2001
Q PACKAGE
(TOP VIEW)
OE₁ 1
D₀ 2
D₁ 3
D₂ 4
D₃ 5
D₄ 6
D₅ 7
D₆ 8
D₇ 9
D₈ 10
D₉ 11
GND 12
24 V_CC
23 Y₀
22 Y₁
21 Y₂
20 Y₃
19 Y₄
18 Y₅
17 Y₆
16 Y₇
15 Y₈
14 Y₉
13 OE₂
description
The CY74FCT2827T 10-bit buffer provides high-performance bus-interface buffering for wide data/address
paths or buses carrying parity. This 10-bit buffer has NANDed output-enable (OE) inputs for maximum control
flexibility. The CY74FCT2827T is designed for high-capacitance-load drive capability, while providing
low-capacitance bus loading at both inputs and outputs. All inputs have clamp diodes and all outputs are
designed for low-capacitance bus loading in the high-impedance state. On-chip termination resistors at the
outputs reduce system noise caused by reflections. The CY74FCT2827T can replace the CY74FCT827T to
reduce noise in an existing design.
This device is 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.
ORDERING INFORMATION
TA
PACKAGE†
SPEED
(ns)
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
QSOP – Q Tape and reel
4.4
CY74FCT2827CTQCT FCT2827C
–40°C to 85°C
QSOP – Q Tape and reel
8
CY74FCT2827ATQCT FCT2827A
† _{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  2001, Texas Instruments Incorporated
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