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CY5474FCT377T Datasheet(PDF) 1 Page - Texas Instruments

Part No. CY5474FCT377T
Description  8-Bit Register
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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CY5474FCT377T Datasheet(HTML) 1 Page - Texas Instruments

   
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8-Bit Register
CY54/74FCT377T
SCCS023 - May1994 - Revised March 2000
Data sheet acquired from Cypress Semiconductor Corporation.
Data sheet modified to remove devices not offered.
Copyright
© 2000, Texas Instruments Incorporated
1CY54/74FCT377T
Features
• Function, pinout and drive compatible with FCT and
F logic
• FCT-C speed at 5.2 ns max. (Com’l)
FCT-A speed at 7.2 ns max. (Com’l)
• Reduced VOH (typically = 3.3V) versions of equivalent
FCT functions
• Edge-rate control circuitry for significantly improved
noise characteristics
• Power-off disable feature
• Matched rise and fall times
• ESD > 2000V
• Fully compatible with TTL input and output logic levels
• Sink Current
64 mA (Com’l),
32 mA (Mil)
Source Current
32 mA (Com’l),
12 mA (Mil)
• Clock Enable for address and data synchronization
application
• Eight edge-triggered D flip-flops
• Extended commercial range of
−40˚C to +85˚C
Functional Description
The FCT377T has eight triggered D-type flip-flops with
individual D inputs. The common buffered clock inputs (CP)
loads all flip-flops simultaneously when the Clock Enable (CE)
is LOW. The register is fully edge-triggered. The state of each
D input, one set-up time before the LOW-to-HIGH clock
transition, is transferred to the corresponding flip-flop’s O out-
put. The CE input must be stable only one set-up time prior to
the LOW-to-HIGH clock transition for predictable operation.
The outputs are designed with a power-off disable feature to
allow for live insertion of boards.
Logic Block Diagram
Pin Configurations
4
8
9
10
11
12
76 5
1516 17 18
3
2
1
20
13
14
19
CP
VCC
GND
Top View
LCC
CE
O0
D0
O3
D4
O4
1
2
3
4
5
6
7
8
9
10
11
12
16
17
18
19
20
13
14
VCC
15
SOIC/QSOP
Top View
O7
O0
D0
D1
O1
O2
D2
D3
O3
D7
D6
O6
O5
D5
D4
O4
CP
CE
GND
CP
D
Q
O0
D1
D2
D3
D4
D5
D6
D7
CP
CE
O7
CP
CE
D0
O0
D1
O1
D2
O2
D3
O3
D4
O4
D5
O5
D6
O6
D7
O7
D0
CP
D
Q
O1
CP
D
Q
O2
CP
D
Q
O3
CP
D
Q
O4
CP
D
Q
O5
CP
D
Q
O6
CP
D
Q
O7
Logic Symbol


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