CY7C1021 Cypress Semiconductor, CY7C1021 Datasheet - Page 4

• Manufacturer Part Number: CY7C1021
• Description: 64K x 16 Static RAM
• Manufacturer: Cypress Semiconductor

Switching Waveforms
Document #: 38-05054 Rev. **
Read Cycle No. 2 (OE Controlled)
Read Cycle No. 1
Notes:
DATA OUT
10. WE is HIGH for read cycle.
11. Address valid prior to or coincident with CE transition LOW.
CURRENT
9.
DATA OUT
ADDRESS
BHE, BLE
SUPPLY
ADDRESS
V
CC
Device is continuously selected. OE, CE, BHE and/or BHE = V
OE
CE
[9, 10]
PREVIOUS DATA VALID
HIGH IMPEDANCE
t
t
LZCE
PU
[10, 11]
t
ACE
t
t
LZBE
t
DBE
LZOE
t
DOE
50%
t
OHA
t
AA
IL
.
t
RC
t
RC
DATA VALID
t
HZOE
DATA VALID
t
t
HZCE
HZBE
t
PD
50%
CY7C1021
IMPEDANCE
HIGH
1021-6
Page 4 of 9
1021-5
I
I
ICC
ISB
SB
CC