CY7C421-25JC Cypress Semiconductor Corp, CY7C421-25JC Datasheet - Page 9
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CY7C421-25JC
Manufacturer Part Number
CY7C421-25JC
Description
Manufacturer
Cypress Semiconductor Corp
Datasheet
1.CY7C421-25JC.pdf
(25 pages)
Specifications of CY7C421-25JC
Density
4Kb
Word Size
9b
Sync/async
Asynchronous
Expandable
Yes
Package Type
LCC
Operating Supply Voltage (typ)
5V
Operating Supply Voltage (min)
4.5V
Operating Supply Voltage (max)
5.5V
Operating Temp Range
0C to 70C
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Pin Count
32
Lead Free Status / Rohs Status
Not Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
CY7C421-25JC
Manufacturer:
CYPRESS/赛普拉斯
Quantity:
20 000
Document #: 38-06001 Rev. *B
Switching Waveforms
Last Write to First Read Full Flag
Last Read to First Write Empty Flag
Retransmit
Notes:
13. EF, HF and FF may change state during retransmit as a result of the offset of the read and write pointers, but flags will be valid at t
14. t
DATA OUT
RTC
= t
FL/RT
PRT
R,W
FF
EF
W
W
R
R
[13]
+ t
RTR
.
t
t
REF
WFF
LAST WRITE
LAST READ
t
A
(continued)
VALID
t
PRT
t
RTC
[14]
FIRST WRITE
FIRST READ
t
t
WEF
RFF
t
RTR
ADDITIONAL
ADDITIONAL
WRITES
READS
FIRST WRITE
FIRST READ
CY7C419/21/25/29/33
VALID
RTC
.
Page 9 of 25
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