CY7C199-12VI Cypress Semiconductor Corp, CY7C199-12VI Datasheet - Page 7

• Manufacturer Part Number: CY7C199-12VI
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C199-12VI

• Density: 256Kb
• Access Time (max): 12ns
• Operating Supply Voltage (typ): 5V
• Package Type: SOJ
• Operating Temp Range: -40C to 85C
• Supply Current: 160mA
• Operating Supply Voltage (min): 4.5V
• Operating Supply Voltage (max): 5.5V
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 28
• Word Size: 8b
• Lead Free Status / Rohs Status: Not Compliant

Switching Waveforms
Read Cycle No. 2
Write Cycle No. 1 (WE Controlled)
Write Cycle No. 2 (CE Controlled)
Notes:
14. Address valid prior to or coincident with CE transition LOW.
15. Data I/O is high impedance if OE = V
16. If CE goes HIGH simultaneously with WE HIGH, the output remains in a high-impedance state.
ADDRESS
DATA OUT
CURRENT
ADDRESS
DATA I/O
DATA I/O
SUPPLY
CE
WE
V
WE
CE
OE
CE
OE
CC
[13, 14]
HIGH IMPEDANCE
t
PU
(continued)
t
LZCE
IH
t
SA
.
t
HZOE
[10, 15, 16]
[10, 15, 16]
t
t
ACE
LZOE
t
SA
50%
t
DOE
t
AW
t
AW
t
RC
t
WC
t
WC
7
DATA
t
t
PWE
SD
DATA
t
IN
SCE
t
SD
VALID
DATA VALID
IN
VALID
t
HD
t
HA
t
HA
t
HD
t
t
HZOE
HZCE
t
PD
50%
CY7C199
IMPEDANCE
HIGH
C199–10
C199–9
C199–11
ICC
ISB