8-BIT TRANSCEIVERS. CY74FCT245T Datasheet

CY74FCT245T TRANSCEIVERS. Datasheet pdf. Equivalent

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




Texas Instruments 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.
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Texas Instruments 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



Texas Instruments CY74FCT245T
CY54FCT245T, CY74FCT245T
8-BIT TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCCS018B MAY 1994 REVISED NOVEMBER 2001
absolute maximum ratings 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): P package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69°C/W
Q package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68°C/W
SO package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58°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)
CY54FCT245T
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.
CY74FCT245T
CY74FCT245AT
CY74FCT245CT
CY74FCT245DT
MIN NOM MAX
4.75 5 5.25
2
0.8
32
64
40 85
UNIT
V
V
V
mA
mA
°C
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
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