CY7C421-25VC Cypress Semiconductor Corp, CY7C421-25VC Datasheet - Page 8
CY7C421-25VC
Manufacturer Part Number
CY7C421-25VC
Description
Manufacturer
Cypress Semiconductor Corp
Datasheet
1.CY7C421-25VC.pdf
(25 pages)
Specifications of CY7C421-25VC
Density
4Kb
Word Size
9b
Sync/async
Asynchronous
Expandable
Yes
Package Type
SOJ
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
28
Lead Free Status / Rohs Status
Not Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
CY7C421-25VC
Manufacturer:
ST
Quantity:
6 244
Document #: 38-06001 Rev. *B
Switching Waveforms
Asynchronous Read and Write
Master Reset
Half-full Flag
Notes:
11. W and R ≥ V
12. t
MRSC
= t
R, W
PMR
Q
D
0
0
IH
[11]
–Q
–D
MR
HF
+ t
HF
EF
FF
W
R
around the rising edge of MR.
W
R
RMR
8
8
.
HALF FULL
t
LZR
t
PW
t
A
t
t
WHF
RC
t
t
t
t
HFH
SD
FFH
EFL
DATA VALID
t
WC
DATA VALID
t
t
PMR
MRSC
t
RR
t
DVR
t
HD
[12]
t
WR
t
A
t
PR
HALF FULL+1
t
t
WPW
RPW
DATA VALID
t
RMR
DATA VALID
t
HZR
CY7C419/21/25/29/33
t
RHF
HALF FULL
Page 8 of 25
[+] Feedback