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CY74FCT245TSOCT Datasheet

  • CY74FCT245TSOCT

  • 8-Bit Transceiver

  • 7頁

  • TI

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Data sheet acquired from Cypress Semiconductor Corporation.
Data sheet modi鏗乪d to remove devices not offered.
CY54/74FCT245T
SCCS018 - May 1994 - Revised February 2000
8-Bit Transceiver
Functional Description
The FCT245T contains eight non-inverting bidirectional buff-
ers with three-state outputs and is intended for bus oriented
applications. For the FCT245T, current sinking capability is 64
mA at the A and B ports.
The Transmit/Receiver (T/R) input determines the direction of
data 鏗俹w through bidirectional transceiver. 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 a High Z condition.
The outputs are designed with a power-off disable feature to
allow for live insertion of boards.
Features
鈥?/div>
Function, pinout, and drive compatible with FCT, and
F logic
鈥?FCT-D speed at 3.8 ns max. (Com鈥檒),
FCT-C speed at 4.1 ns max. (Com鈥檒),
FCT-A speed at 4.6 ns max. (Com鈥檒)
鈥?Reduced V
OH
(typically = 3.3V) versions of equivalent
FCT functions
鈥?Edge-rate control circuitry for signi鏗乧antly improved
noise characteristics
鈥?Power-off disable feature
鈥?ESD > 2000V
鈥?Matched rise and fall times
鈥?Fully compatible with TTL input and output logic levels
鈥?Extended commercial range of
鈭?0藲C
to +85藲C
鈥?Sink current
64 mA (Com鈥檒), 48 mA (Mil)
Source current
32 mA (Com鈥檒), 12 mA (Mil)
Logic Block Diagram
T/R
OE
A
0
B
0
A
1
B
1
A
2
B
2
A
3
B
3
A
4
B
4
A
5
B
5
A
6
B
6
A
7
B
7
Pin Configurations
LCC
Top View
A6
A5
A4
A3
A2
DIP/SOIC/QSOP
Top View
T/R
A
0
A
1
3
2
1
20
19
A
1
A
0
T/R
V
CC
OE
A
2
A
3
A
4
A
5
A
6
A
7
GND
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
V
CC
OE
B
0
B
1
B
2
B
3
B
4
B
5
B
6
B
7
8
A
7
GND
B
7
B
6
B
5
9
10
11
12
13
7 6 5 4
14 1516 17 18
B4
B3
B2
B1
B0
Function Table
[1]
OE
L
L
H
T/R
L
H
X
Operation
B Data to Bus A
A Data to Bus B
High Z State
Note:
1. H = HIGH Voltage Level. L = LOW Voltage Level. X = Don鈥檛 Care.
Copyright
漏
2000, Texas Instruments Incorporated

CY74FCT245TSOCT 產(chǎn)品屬性

  • 2,000

  • 集成電路 (IC)

  • 邏輯 - 緩沖器，驅(qū)動(dòng)器，接收器，收發(fā)器

  • 74FCT

  • 收發(fā)器，非反相

  • 1

  • 8

  • 32mA，64mA

  • 4.75 V ~ 5.25 V

  • -40°C ~ 85°C

  • 表面貼裝

  • 20-SOIC（0.295"，7.50mm 寬）

  • 20-SOIC

  • 帶卷 (TR)

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