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5962-9061102XX Datasheet, PDF (8/15 Pages) Cypress Semiconductor – 32-Macrocell MAX® EPLD
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CY7C344
Typical Internal Switching Characteristics Over Operating Range[7] (continued)
Parameter
Description
tCLR
Asynchronous Register Clear Time
Com’l/Ind
Mil
tPCW
Asynchronous Preset and Clear Pulse Width
Com’l/Ind
Mil
tPCR
Asynchronous Preset and Clear Recovery Time Com’l/Ind
Mil
7C344-15 7C344-20 7C344-25
Min. Max. Min. Max. Min. Max. Unit
5
6
9 ns
5
6
9
5
5
7
ns
5
5
7
5
5
7
ns
5
5
7
Switching Waveforms
External Combinatorial
DEDICATED INPUT/
I/O INPUT
COMBINATORIAL
OUTPUT
COMBINATORIAL OR
REGISTERED OUTPUT
HIGH-IMPEDANCE
THREE-STATE
tPD1/tPD2
tER
tEA
VALID OUTPUT
HIGH-IMPEDANCE
THREE-STATE
External Synchronous
DEDICATED INPUTS OR
REGISTERED FEEDBACK
SYNCHRONOUS
CLOCK
ASYNCHRONOUS
CLEAR/PRESET
REGISTERED
OUTPUTS
COMBINATORIAL OUTPUT FROM
REGISTERED FEEDBACK [12]
tS
tH
tCO1
tOH
tWH
tWL
tRW/tPW
tRO/tPO
tCO2
tRR/tPR
Document #: 38-03006 Rev. *B
Page 8 of 15
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