BUFFERS/LINE DRIVERS. CY74FCT540T Datasheet

CY74FCT540T DRIVERS. Datasheet pdf. Equivalent

Part CY74FCT540T
Description 8-BIT BUFFERS/LINE DRIVERS
Feature D Function, Pinout, and Drive Compatible With FCT and F Logic D Reduced VOH (Typically = 3.3 V) Vers.
Manufacture etcTI
Datasheet
Download CY74FCT540T Datasheet



CY74FCT540T
D Function, Pinout, and Drive Compatible
With FCT and F Logic
D Reduced VOH (Typically = 3.3 V) Versions
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 Matched Rise and Fall Times
D Fully Compatible With TTL Input and
Output Logic Levels
D CY54FCT540T
– 48-mA Output Sink Current
– 12-mA Output Source Current
D CY74FCT540T
– 64-mA Output Sink Current
– 32-mA Output Source Current
D 3-State Outputs
description
CY54FCT540T, CY74FCT540T
8-BIT BUFFERS/LINE DRIVERS
WITH 3-STATE OUTPUTS
SCCS029A – MAY 1994 – REVISED OCTOBER 2001
CY54FCT540T . . . D PACKAGE
CY74FCT540T . . . Q PACKAGE
(TOP VIEW)
OEA
D0
D1
D2
D3
D4
D5
D6
D7
GND
1
2
3
4
5
6
7
8
9
10
20 VCC
19 OEB
18 O0
17 O1
16 O2
15 O3
14 O4
13 O5
12 O6
11 O7
CY54FCT540T . . . L PACKAGE
(TOP VIEW)
D2
3 2 1 20 19
4 18 O0
D3 5
17 O1
D4 6
16 O2
D5 7
15 O3
D6
8 14
9 10 11 12 13
O4
The ’FCT540T inverting buffers/line drivers can
be employed as memory address drivers, clock
drivers, and bus-oriented transmitters/receivers.
These devices provide speed and drive capabili-
ties equivalent to their fastest bipolar-logic
counterparts, while reducing power dissipation.
The input and output voltage levels allow direct
interface with TTL, NMOS, and CMOS devices
without external components.
These devices are 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
–40°C to 85°C QSOP – Q Tape and reel
4.1 CY74FCT540CTQCT FCT540C
CDIP – D
–55°C to 125°C
LCC – L
Tube
Tube
4.7 CY54FCT540CTDMB
4.7 CY54FCT540CTLMB
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
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.
1



CY74FCT540T
CY54FCT540T, CY74FCT540T
8-BIT BUFFERS/LINE DRIVERS
WITH 3-STATE OUTPUTS
SCCS029A MAY 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 state
logic diagram (positive logic)
1
OEA
OEB 19
D0 2
18
O0
To Seven Other Channels
absolute maximum rating over operating free-air temperature range (unless otherwise noted)
Supply voltage range to ground potential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 V to 7 V
DC input voltage range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 V to 7 V
DC output voltage range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 V to 7 V
DC output current (maximum sink current/pin) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120 mA
Package thermal impedance, θJA (see Note 1): Q package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68°C/W
Ambient temperature range with power applied, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65°C to 135°C
Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65°C to 150°C
Stresses beyond those listed under absolute maximum ratingsmay cause permanent damage to the device. These are stress ratings only, and
functionaloperation of the device at these or any other conditions beyond those indicated under recommended operating conditionsis not implied.
Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTE 1: The package thermal impedance is calculated in accordance with JESD 51-7.
recommended operating conditions (see Note 2)
CY54FCT540T
MIN NOM MAX
VCC Supply voltage
4.5 5 5.5
VIH High-level input voltage
2
VIL Low-level input voltage
0.8
IOH High-level output current
12
IOL Low-level output current
48
TA Operating free-air temperature
55 125
NOTE 2: All unused inputs of the device must be held at VCC or GND to ensure proper device operation.
CY74FCT540T
MIN NOM MAX
4.75 5 5.25
2
0.8
32
64
40 85
UNIT
V
V
V
mA
mA
°C
2 POST OFFICE BOX 655303 DALLAS, TEXAS 75265





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