CY7C425-25DMB Cypress Semiconductor Corp, CY7C425-25DMB Datasheet - Page 8

• Manufacturer Part Number: CY7C425-25DMB
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C425-25DMB

• Density: 8Kb
• Word Size: 9b
• Sync/async: Asynchronous
• Expandable: Yes
• Package Type: DIP
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (min): 4.5V
• Operating Supply Voltage (max): 5.5V
• Operating Temp Range: -55C to 125C
• Operating Temperature Classification: Military
• Mounting: Through Hole
• Pin Count: 28
• Lead Free Status / Rohs Status: Not Compliant

Switching Waveforms
Document #: 38-06001 Rev. *A
Asynchronous Read and Write
Master Reset
Half-Full Flag
Notes:
12. t
11. W and R
MRSC
R, W
= t
Q
D
PMR
0
0
[11]
–Q
–D
MR
HF
HF
EF
V
FF
W
R
IH
W
R
+ t
8
8
around the rising edge of MR.
RMR
.
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 22
C420–9
C420–10
C420–11