8-BIT TRANSCEIVERS. CY74FCT245T Datasheet

CY74FCT245T TRANSCEIVERS. Datasheet pdf. Equivalent

Part CY74FCT245T
Description 8-BIT TRANSCEIVERS
Feature D Function, Pinout, and Drive Compatible With FCT and F Logic D Reduced VOH (Typically = 3.3 V) Vers.
Manufacture etcTI
Total Page 21 Pages
Datasheet
Download CY74FCT245T Datasheet



CY74FCT245T
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 CY54FCT245T
– 48-mA Output Sink Current
12-mA Output Source Current
D CY74FCT245T
– 64-mA Output Sink Current
32-mA Output Source Current
D 3-State Outputs
description
CY54FCT245T, CY74FCT245T
8-BIT TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCCS018B – MAY 1994 – REVISED NOVEMBER 2001
CY54FCT245T . . . D PACKAGE
CY74FCT245T . . . P, Q, OR SO PACKAGE
(TOP VIEW)
T/R
A0
A1
A2
A3
A4
A5
A6
A7
GND
1
2
3
4
5
6
7
8
9
10
20 VCC
19 OE
18 B0
17 B1
16 B2
15 B3
14 B4
13 B5
12 B6
11 B7
CY54FCT245T . . . L PACKAGE
(TOP VIEW)
3 2 1 20 19
A2 4
18 B0
A3 5
17 B1
A4 6
16 B2
A5 7
15 B3
A6
8 14
9 10 11 12 13
B4
The ’FCT245T devices contain eight noninverting
bidirectional buffers with 3-state outputs and are
intended for bus-oriented applications.
The transmit/receive (T/R) input determines the direction of data flow through these bidirectional transceivers.
Transmit (active high) enables data from A ports to B ports. The output enable (OE), when high, disables both
the A and B ports by putting them in the high-impedance state.
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.
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



CY74FCT245T
CY54FCT245T, CY74FCT245T
8-BIT TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCCS018B MAY 1994 REVISED NOVEMBER 2001
ORDERING INFORMATION
TA
PACKAGE
SPEED
(ns)
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
QSOP Q Tape and reel 3.8 CY74FCT245DTQCT FCT245D
QSOP Q Tape and reel 4.1 CY74FCT245CTQCT FCT245C
Tube
4.1 CY74FCT245CTSOC
SOIC SO
FCT245C
Tape and reel 4.1 CY74FCT245CTSOCT
DIP P
Tube
4.6 CY74FCT245ATPC
CY74FCT245ATPC
40°C to 85°C QSOP Q Tape and reel 4.6 CY74FCT245ATQCT FCT245A
Tube
4.6 CY74FCT245ATSOC
SOIC SO
FCT245A
Tape and reel 4.6 CY74FCT245ATSOCT
QSOP Q Tape and reel 7 CY74FCT245TQCT FCT245
Tube
7 CY74FCT245TSOC
SOIC SO
FCT245
Tape and reel 7 CY74FCT245TSOCT
CDIP D Tube
4.5 CY54FCT245CTDMB
LCC L
Tube
4.5 CY54FCT245CTLMB
CDIP D
55°C to 125°C
LCC L
Tube
Tube
4.9 CY54FCT245ATDMB
4.9 CY54FCT245ATLMB
CDIP D Tube
7.5 CY54FCT245TDMB
LCC L
Tube
7.5 CY54FCT245TLMB
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available
at www.ti.com/sc/package.
FUNCTION TABLE
INPUTS
OE T/R
OPERATION
L L B data to bus A
L H A data to bus B
HX
Z
H = High logic level, L = Low logic level,
X = Dont care, Z = High-impedance
state
logic diagram (positive logic)
1
T/R
19
OE
A0 2
18
B0
To Seven Other Channels
2 POST OFFICE BOX 655303 DALLAS, TEXAS 75265





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