cym1841c ETC-unknow, cym1841c Datasheet - Page 6

• Manufacturer Part Number: cym1841c
• Description: 256k X 32 Static Ram Module
• Manufacturer: ETC-unknow

Switching Waveforms
Read Cycle No. 1
Read Cycle No. 2
Write Cycle No. 1 (WE Controlled)
Notes:
10. Address valid prior to or coincident with CS transition LOW.
8.
9.
DATA OUT
ADDRESS
DATA OUT
DATA OUT
ADDRESS
DATA IN
WE is HIGH for read cycle.
Device is continuously selected, CS = V
WE
CS
OE
CS
[8, 9]
[8, 10]
PREVIOUS DATA VALID
HIGH IMPEDANCE
t
LZCS
t
DATA UNDEFINED
IL
SA
[7]
t
and OE= V
ACS
t
LZOE
t
OHA
t
DOE
IL
.
t
AA
t
SCS
t
AW
t
RC
t
WC
6
t
RC
t
HZWE
DATA VALID
t
PWE
t
SD
DATA VALID
HIGH IMPEDANCE
t
HD
t
DATA VALID
LZWE
t
HA
t
HZOE
t
HZCS
CYM1841A
CYM1841C
IMPEDANCE
HIGH
1841A–6
1841A–7
1841A–8