9 / 16 page
CY7C344B
USE ULTRA37000TM FOR
ALL NEW DESIGNS
Document #: 38-03006 Rev. *A
Page 9 of 16
tCLR
Asynchronous Register Clear Time
Com’l/Ind
5
6
9
ns
Mil
5
6
9
tPCW
Asynchronous Preset and Clear Pulse Width
Com’l/Ind
5
5
7
ns
Mil
5
5
7
tPCR
Asynchronous Preset and Clear Recovery Time Com’l/Ind
5
5
7
ns
Mil
5
5
7
Typical Internal Switching Characteristics Over Operating Range[7] (continued)
7C344-15
7C344-20
7C344-25
Parameter
Description
Min.
Max.
Min.
Max.
Min.
Max.
Unit
Switching Waveforms
External Combinatorial
tPD1/tPD2
tER
tEA
VALID OUTPUT
DEDICATED INPUT/
I/O INPUT
COMBINATORIAL
OUTPUT
COMBINATORIAL OR
REGISTERED OUTPUT
HIGH-IMPEDANCE
THREE-STATE
HIGH-IMPEDANCE
THREE-STATE
External Synchronous
tH
tS
tWH
tWL
tRR/tPR
tRW/tPW
tOH
tCO1
tRO/tPO
tCO2
DEDICATED INPUTS OR
REGISTERED FEEDBACK
SYNCHRONOUS
CLOCK
ASYNCHRONOUS
CLEAR/PRESET
REGISTERED
OUTPUTS
COMBINATORIAL OUTPUT FROM
REGISTERED FEEDBACK [12]
New Zealand ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
