Cypress Semiconductor CY62157CV33 Scheda tecnica - Pagina 7
Sfoglia online o scarica il pdf Scheda tecnica per Hardware del computer Cypress Semiconductor CY62157CV33. Cypress Semiconductor CY62157CV33 14. 512k x 16 static ram
Stampa la paginaSwitching Waveforms
Read Cycle No. 1 (Address Transition Controlled)
ADDRESS
DATA OUT
PREVIOUS DATA VALID
Read Cycle No. 2 (OE Controlled)
ADDRESS
CE
1
CE
2
OE
BHE/BLE
HIGH IMPEDANCE
DATA OUT
t
V
CC
SUPPLY
CURRENT
Notes:
15. Device is continuously selected. OE, CE
16. WE is HIGH for Read cycle.
17. Address valid prior to or coincident with CE
Document #: 38-05014 Rev. *F
[15, 16]
t
AA
t
OHA
[16, 17]
t
RC
t
ACE
t
LZBE
t
DOE
t
LZOE
t
LZCE
PU
50%
= V
, BHE and/or BLE = V
1
IL
, BHE, BLE transition LOW and CE
1
t
RC
DATA VALID
, CE
= V
.
IL
2
IH
transition HIGH.
2
CY62157CV30/33
DATA VALID
t
HZBE
t
HZOE
t
HZCE
HIGH
IMPEDANCE
t
PD
I
CC
50%
I
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