BUFFER/LINE DRIVER. CY74FCT2240T Datasheet

CY74FCT2240T DRIVER. Datasheet pdf. Equivalent

Part CY74FCT2240T
Description 8-BIT BUFFER/LINE DRIVER
Feature D Function and Pinout Compatible With FCT and F Logic D 25-Ω Output Series Resistors Reduce Transmis.
Manufacture etcTI
Datasheet
Download CY74FCT2240T Datasheet



CY74FCT2240T
D Function and Pinout Compatible With FCT
and F Logic
D 25-Output Series Resistors Reduce
Transmission-Line Reflection Noise
D TTL-Output-Level Version of Equivalent
FCT Functions
D Edge-Rate Control Circuitry for
Significantly Improved Noise
Characteristics
D Ioff 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 Fully Compatible With TTL Input and
Output Logic Levels
D 12-mA Output Sink Current
15-mA Output Source Current
D 3-State Outputs
CY74FCT2240T
8-BIT BUFFER/LINE DRIVER
WITH 3-STATE OUTPUTS
SCCS036A – SEPTEMBER 1994 – REVISED OCTOBER 2001
Q OR SO PACKAGE
(TOP VIEW)
OEA
DA0
OB0
DA1
OB1
DA2
OB2
DA3
OB3
GND
1
2
3
4
5
6
7
8
9
10
20 VCC
19 OEB
18 OA0
17 DB0
16 OA1
15 DB1
14 OA2
13 DB2
12 OA3
11 DB3
description
The CY74FCT2240T is an octal buffer and line driver that includes on-chip 25-terminating resistors at each
of the outputs to minimize noise resulting from reflections or standing waves in high-performance applications.
The on-chip resistors reduce overall board space and component count. Designed to be employed as a memory
address driver, clock driver, and bus-oriented transmitter/receiver, this device provides speed and drive
capabilities commensurate with its fastest bipolar logic counterparts, while reducing power dissipation. The
input and output voltage levels allow direct interface with TTL, NMOS, and CMOS devices, without the need
for external components.
This device is fully specified for partial-power-down applications using Ioff. The Ioff 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
4.1
CY74FCT2240CTQCT
FCT2240C
Tube
4.1 CY74FCT2240CTSOC
SOIC – SO
FCT2240C
Tape and reel 4.1 CY74FCT2240CTSOCT
–40°C to 85°C
QSOP – Q Tape and reel 4.8 CY74FCT2240ATQCT FCT2240A
Tube
8 CY74FCT2240TSOC
SOIC – SO
FCT2240
Tape and reel 8 CY74FCT2240TSOCT
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
1



CY74FCT2240T
CY74FCT2240T
8-BIT BUFFER/LINE DRIVER
WITH 3-STATE OUTPUTS
SCCS036A SEPTEMBER 1994 REVISED OCTOBER 2001
FUNCTION TABLE
INPUTS
OEA OEB
LL
D
L
OUTPUT
O
H
L LH
L
HHX
Z
H = High logic level, L = Low logic level,
X = Dont care, Z = High-impedance (off)
state
logic diagram
1
OEA
19 OEB
DA0 2
18 OA0
OB0 3
17
DB0
DA1 4
16
OA1
OB1 5
15 DB1
6
DA2
OB2 7
14
OA2
13
DB2
DA3 8
OB3 9
12 OA3
11 DB3
2 POST OFFICE BOX 655303 DALLAS, TEXAS 75265





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