gvt73256a16 Cypress Semiconductor Corporation., gvt73256a16 Datasheet - Page 5

• Manufacturer Part Number: gvt73256a16
• Description: 256k X 16 Static Ram Semiconductor
• Manufacturer: Cypress Semiconductor Corporation.

Switching Waveforms
Read Cycle No. 1
Read Cycle No. 2
Notes:
11. WE is HIGH for read cycle.
12. Device is continuously selected. Chip Enable and Output Enables are held in their active state.
13. Address valid prior to or coincident with latest occurring chip enable.
14. Chip Enable and Write Enable can initiate and terminate a write cycle.
Low V
CC
ADDR
BHE#
BLE#
CE#
OE#
CE#
V
Data Retention Waveform
C C
Q
Q
V
V
[11, 12]
[7, 11, 13, 14]
PREVIOUS DATA VALID
IH
IL
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t
C D R
HIGH Z
t
LZCE
t
LZBE
t
ACE
t
3.0V
PRELIMINARY
LZOE
DATA RETENTION MODE
t
ABE
t
OH
t
t
AA
AOE
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t
RC
V
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VALID
D R
t
RC
DATA VALID
5
3.0V
xxxx
xxxx
xxxx
xxxx
xxxx
xxxx
xxxx
xxxx
xxxx
DATA VALID
t
HZOE
t
HZBE
UNDEFINED
DON'T CARE
t
HZCE
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t
R C
CY7C1041AV33/
GVT73256A16