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74FCT162827ETPACT Folha de dados(PDF) 1 Page - Texas Instruments

Nome de Peças 74FCT162827ETPACT
Descrição Electrónicos  20-Bit Buffers/Line Drivers
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Fabricante Electrônico  TI1 [Texas Instruments]
Página de início  http://www.ti.com
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74FCT162827ETPACT Folha de dados(HTML) 1 Page - Texas Instruments

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20-Bit Buffers/Line Drivers
CY74FCT16827T
CY74FCT162827T
Data sheet acquired from Cypress Semiconductor Corporation.
Data sheet modified to remove devices not offered.
SCCS064B - August 1994 - Revised September 2001
Copyright
© 2001, Texas Instruments Incorporated
1CY74FCT162827T
Features
•Ioff Supports Partial-Power-Down Mode Operation
• Edge-rate control circuitry for significantly improved
noise characteristics
• Typical output skew < 250 ps
• ESD > 2000V
• TSSOP (19.6-mil pitch) and SSOP (25-mil pitch)
packages
• Industrial temperature range of
−40˚C to +85˚C
•VCC = 5V ± 10%
CY74FCT16827T Features:
• 64 mA sink current, 32 mA source current
• Typical VOLP (ground bounce) <1.0V at VCC = 5V,
TA = 25˚C
CY74FCT162827T Features:
• Balanced 24 mA output drivers
• Reduced system switching noise
• Typical VOLP (ground bounce) <0.6V at VCC = 5V,
TA = 25˚C
Functional Description
The CY74FCT16827T 20-bit buffer/line driver and the
CY74FCT162827T
20-bit
buffer/line
driver
provide
high-performance bus interface buffering for wide data/address
paths or buses carrying parity. These parts can be used as a single
20-bit buffer or two 10-bit buffers. Each 10-bit buffer has a pair of
NANDed OE for increased flexibility.
This
device
is
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.
The
CY74FCT16827T
is
ideally
suited
for
driving
high-capacitance loads and low-impedance backplanes.
The CY74FCT162827T has 24-mA balanced output drivers
with current-limiting resistors in the outputs. This reduces the
need for external terminating resistors and provides for
minimal undershoot and reduced ground bounce. The
CY74FCT162827T is ideal for driving transmission lines.
GND
Logic Block Diagrams
Pin Configuration
1
2
3
4
5
6
7
8
9
10
11
12
33
32
31
30
29
36
35
1OE1
34
SSOP/TSSOP
Top View
1Y1
13
14
15
16
17
18
19
20
21
22
23
24
45
44
43
42
41
37
38
39
40
48
47
46
1A1
1OE1
1Y1
1Y2
1Y3
1Y4
1A1
1A2
1A3
1A4
1OE2
GND
GND
VCC
2Y3
2Y4
2Y1
2Y2
1A6
VCC
GND
GND
2OE1
FCT16827-1
1OE2
TO 9 OTHER CHANNELS
2A1
2OE1
TO 9 OTHER CHANNELS
2OE2
2Y1
1Y5
1Y6
1Y7
1Y8
1Y9
1Y10
2Y5
2Y9
2Y7
2Y8
VCC
2Y6
2Y10
GND
25
26
27
28
55
54
53
52
51
50
49
56
1A5
1A7
1A9
1A8
1A10
2A3
2A4
2A2
GND
2A5
2A9
2A7
2A8
VCC
2A6
2A10
2A1
GND
2OE2
FCT16827-2
FCT16827-3


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