cy62146e Cypress Semiconductor Corporation., cy62146e Datasheet - Page 6

• Manufacturer Part Number: cy62146e
• Description: 4-mbit 256k X 16 Static Ram
• Manufacturer: Cypress Semiconductor Corporation.

Switching Waveforms
Notes
Document Number: 001-07970 Rev. *D
14. The device is continuously selected. OE, CE = V
15. WE is HIGH for read cycle.
16. Address valid before or similar to CE, BHE, BLE transition LOW.
DATA OUT
CURRENT
ADDRESS
BHE/BLE
DATA OUT
SUPPLY
ADDRESS
V
OE
CE
CC
PREVIOUS DATA VALID
HIGH IMPEDANCE
t
PU
Figure 4. Read Cycle No.1: Address Transition Controlled.
t
LZCE
t
LZBE
t
Figure 5. Read Cycle No. 2: OE Controlled
t
ACE
LZOE
t
IL
DBE
, BHE, BLE, or both = V
t
OHA
50%
t
DOE
t
AA
t
RC
IL
.
t
RC
RC
DATA VALID
[15, 16]
[14, 15]
DATA VALID
CY62146E MoBL
t
HZBE
t
t
HZOE
HZCE
t
PD
50%
IMPEDANCE
Page 6 of 11
HIGH
I
I
CC
SB
®
[+] Feedback
[+] Feedback