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CY74FCT2244TSOCT Datasheet(PDF) 1 Page - Texas Instruments

Part # CY74FCT2244TSOCT
Description  8-Bit Buffers/Line Drivers
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

CY74FCT2244TSOCT Datasheet(HTML) 1 Page - Texas Instruments

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8-Bit Buffers/Line Drivers
CY74FCT2240T
CY74FCT2244T
SCCS036 - September 1994 - Revised March 2000
Data sheet acquired from Cypress Semiconductor Corporation.
Data sheet modified to remove devices not offered.
Copyright
© 2000, Texas Instruments Incorporated
Features
• Function and pinout compatible with FCT and F logic
• 25
Ω output series resistors to reduce transmission line
reflection noise
• FCT-C speed at 4.1 ns max. (Com’l) FCT-A speed at 4.8
ns max. (Com’l)
• TTL output level versions of equivalent FCT functions
• Edge-rate control circuitry for significantly improved
noise characteristics
• Power-off disable feature permits live insertion
• ESD > 2000V
• Fully compatible with TTL input and output logic levels
• Sink current 12 mA
Source current15 mA
• Extended commercial temp. range of –40˚C to +85˚C
• Three-state outputs
Functional Description
The FCT2240T and FCT2244T are octal buffers and line
drivers that include on-chip 25
Ω 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 memory address drivers, clock
drivers, and bus-oriented transmitters/receivers, these devic-
es provide speed and drive capabilities commensurate with
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 the
need for external components.
The outputs are designed with a power-off disable feature to
allow for live insertion of boards.
Logic Block Diagram FCT2240T
Pin Configurations
FCT2240T–2
1
2
3
4
5
6
7
8
9
10
11
12
16
17
18
19
20
13
14
OEA
DA0
OB0
DA1
OB1
DA2
DA3
GND
VCC
FCT2240T–3
15
SOIC/QSOP
Top View
OB2
OB3
OEB
OA0
OA2
DB2
DB3
OA3
DB0
OA1
DB1
OEB
OEA
DA0
OB0
DA1
OB1
DA2
DA3
OB2
OB3
OA0
OA2
DB2
DB3
OA3
DB0
OA1
DB1
Logic Block Diagram FCT2244T
1
2
3
4
5
6
7
8
9
10
11
12
16
17
18
19
20
13
14
OEA
DA0
OB0
DA1
OB1
DA2
DA3
GND
VCC
15
DIP/SOIC/QSOP
Top View
OB2
OB3
OE B
OA0
OA2
DB2
DB3
OA3
DB0
OA1
DB1
OE B
OEA
DA0
OB0
DA1
OB1
DA2
DA3
OB2
OB3
OA0
OA2
DB2
DB3
OA3
DB0
OA1
DB1
FCT2240T–4
FCT2240T–6
FCT2240T
FCT2244T


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