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CY74FCT16841T Datasheet(PDF) 1 Page - Texas Instruments

Part # CY74FCT16841T
Description  20-Bit Latches
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

CY74FCT16841T Datasheet(HTML) 1 Page - Texas Instruments

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20-Bit Latches
CY74FCT16841T
CY74FCT162841T
SCCS067A - July 1994 - Revised October 2001
Data sheet acquired from Cypress Semiconductor Corporation.
Data sheet modified to remove devices not offered.
Copyright
© 2001, Texas Instruments Incorporated
Features
• FCT-C speed at 5.5 ns (FCT16841T Com’l)
•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%
CY74FCT16841T Features:
• 64 mA sink current, 32 mA source current
• Typical VOLP (ground bounce) <1.0V at VCC = 5V,
TA = 25˚C
CY74FCT162841T 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 CY74FCT16841T and CY74FCT162841T are 20-bit
D-type latches designed for use in bus applications requiring
high speed and low power. These devices can be used as two
independent 10-bit latches, or as a single 10-bit latch, or as a
single 20-bit latch by connecting the Output Enable (OE) and
Latch (LE) inputs. Flow-through pinout and small shrink
packaging aid in simplifying board layout.
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
CY74FCT16841T
is
ideally
suited
for
driving
high-capacitance loads and low-impedance backplanes.
The CY74FCT162841T 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
CY74FCT162841T is ideal for driving transmission lines.
C
GND
1D1
Pin Configuration
TO 9 OTHER CHANNELS
C
2D1
2Q1
2LE
2OE
D
1Q7
1OE
SSOP/TSSOP
Top View
1Q1
1LE
1OE
1Q1
1Q2
1
Q3
1Q4
1D1
1D2
1D3
1D4
1LE
GND
GND
VCC
1Q5
1Q6
1D5
1D6
VCC
GND
2D1
GND
GND
VCC
VCC
GND
D
1Q8
1Q10
2Q1
1Q9
2Q2
2Q3
2Q4
2Q5
2Q6
2Q7
2Q8
2Q9
2Q10
2OE
1D7
GND
1D8
1D9
1D10
2D2
2D3
2D4
2D5
2D6
2D7
2D8
2D9
2D10
2LE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
FCT16841-1
FCT16841-2
FCT16841-3
TO 9 OTHER CHANNELS
Logic Block Diagrams


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