CY7C464A-15PC Cypress Semiconductor Corp, CY7C464A-15PC Datasheet - Page 5
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CY7C464A-15PC
Manufacturer Part Number
CY7C464A-15PC
Description
Manufacturer
Cypress Semiconductor Corp
Datasheet
1.CY7C464A-15PC.pdf
(15 pages)
Specifications of CY7C464A-15PC
Density
256Kb
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
0C to 70C
Operating Temperature Classification
Commercial
Mounting
Through Hole
Pin Count
28
Lead Free Status / Rohs Status
Not Compliant
Document #: 38-06011 Rev. *A
Switching Waveforms
Notes:
Asynchronous Read and Write
10. t
8.
9.
Master Reset
Half Full Flag
A HIGH-to-LOW transition of either the write or read strobe causes a HIGH-to-LOW transition of the responding flag. Correspondingly, a LOW-to-HIGH strobe
transition causes a LOW-to-HIGH flag transition.
W and R = V
MSRC
= t
Q
D
R, W
PMR
0
0
IH
Q
D
HF
MR
HF
W
EF
FF
W
R
+ t
R
[9]
around the rising edge of MR.
8
8
RMR
HALF FULL
[7]
t
LZR
t
PW
t
A
t
RC
t
t
WHF
SD
t
DATA VALID
t
t
HFH
FFH
EFL
t
WC
DATA VALID
t
t
PMR
RR
t
t
MRSC
DVR
t
HD
t
WR
[10]
t
A
t
PR
HALF FULL+1
t
t
WPW
RPW
DATA VALID
t
PW
t
RMR
t
SD
DATA VALID
t
HZR
CY7C460A/CY7C462A
CY7C464A/CY7C466A
t
HD
t
RHF
HALF FULL
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