cy62147ev30 Cypress Semiconductor Corporation., cy62147ev30 Datasheet - Page 6

• Manufacturer Part Number: cy62147ev30
• Description: 4-mbit 256k X 16 Static Ram
• Manufacturer: Cypress Semiconductor Corporation.

Document #: 38-05440 Rev. *E
Switching Waveforms
Read Cycle No. 1 (Address Transition Controlled)
Read Cycle No. 2 (OE Controlled)
Notes
17. The device is continuously selected. OE, CE = V
18. WE is HIGH for read cycle.
19. Address valid before or similar to CE and BHE, BLE transition LOW.
DATA OUT
CURRENT
ADDRESS
DATA OUT
ADDRESS
BHE/BLE
SUPPLY
V
CE
OE
CC
PREVIOUS DATA VALID
HIGH IMPEDANCE
t
PU
t
LZCE
t
LZBE
[18, 19]
t
t
ACE
LZOE
t
DBE
IL
t
50%
OHA
, BHE, BLE, or both = V
t
DOE
Figure 3. Read Cycle No. 1
Figure 4. Read Cycle No. 2
[17, 18]
t
AA
t
RC
IL
.
t
RC
DATA VALID
CY62147EV30 MoBL
DATA VALID
t
HZBE
t
t
HZOE
HZCE
t
PD
50%
Page 6 of 12
IMPEDANCE
HIGH
I
I
CC
SB
®
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