Cypress CY14B108M - Manual (Page 19)

PRELIMINARY
CY14B108K, CY14B108M
Document #: 001-47378 Rev. ** Page 19 of 29
Switching Waveforms
Figure 8. SRAM Read Cycle 2: CE Controlled [3, 15, 19]
Figure 9. SRAM Write Cycle 1: WE Controlled [3, 18, 19, 20]
Address Valid Address
Data Output Output Data Valid
Standby
Active
High Impedance
CE
OE
BHE, BLE
I
CC
t
HZCE
t
RC
t
ACE
t
AA
t
LZCE
t
DOE
t
LZOE
t
DBE
t
LZBE
t
PU t
PD
t
HZBE
t
HZOE
Data Output
Data Input Input Data Valid
High Impedance
Address Valid Address
Previous Data
t
WC
t
SCE
t
HA
t
BW
t
AW
t
PWE
t
SA
t
SD
t
HD
t
HZWE
t
LZWE
WE
BHE, BLE
CE
Note
20. CE or WE must be >V
IH
during address transitions.
[+] Feedback