CY6264-55SC Cypress Semiconductor, CY6264-55SC Datasheet - Page 4

• Manufacturer Part Number: CY6264-55SC
• Description: 8K x 8 Static RAM
• Manufacturer: Cypress Semiconductor

Switching Waveforms
Read Cycle No.1
Read Cycle No. 2
Write Cycle No. 1 (WE Controlled)
Notes:
10. WE is HIGH for read cycle.
11. Data I/O is High Z if OE = V
8.
9.
ADDRESS
DATA OUT
CURRENT
DATA OUT
ADDRESS
DATA I/O
DATA IN
SUPPLY
Device is continuously selected. OE, CE = V
Address valid prior to or coincident with CE transition LOW.
CE
CE
CE
CE
V
WE
OE
OE
OE
CC
1
2
1
2
[8, 9]
[10, 11]
PREVIOUS DATA VALID
HIGH IMPEDANCE
IH
t
, CE
PU
t
1
LZCE
t
SA
= V
DATA UNDEFINED
IH
[9, 11]
t
t
, or WE = V
ACE
LZOE
PRELIMINARY
IL
t
. CE
OHA
50%
t
DOE
2
= V
IL
.
IH.
t
t
SCE2
AA
t
t
SCE1
AW
t
RC
t
WC
t
HZWE
4
t
RC
DATA
t
t
PWE
SD
IN
VALID
DATA VALID
HIGH IMPEDANCE
t
t
DATA VALID
HZOE
t
HA
LZWE
t
HD
t
HZCE
t
PD
50%
IMPEDANCE
CY6264
HIGH
CY6264-5
CY6264-6
CY6264-7
ICC
ISB