CY7C168A-25PC Cypress Semiconductor Corp, CY7C168A-25PC Datasheet - Page 5

• Manufacturer Part Number: CY7C168A-25PC
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C168A-25PC

• Density: 16Kb
• Access Time (max): 25ns
• Sync/async: Asynchronous
• Architecture: Not Required
• Clock Freq (max): Not RequiredMHz
• Operating Supply Voltage (typ): 5V
• Address Bus: 12b
• Package Type: PDIP
• Operating Temp Range: 0C to 70C
• Number Of Ports: 1
• Supply Current: 90mA
• Operating Supply Voltage (min): 4.5V
• Operating Supply Voltage (max): 5.5V
• Operating Temperature Classification: Commercial
• Mounting: Through Hole
• Pin Count: 20
• Word Size: 4b
• Number Of Words: 4K
• Lead Free Status / Rohs Status: Not Compliant

Switching Waveforms
Document #: 38-05029 Rev. **
Notes:
Read Cycle
12. Address valid prior to or coincident with CE transition LOW.
13. If CE goes HIGH simultaneously with WE HIGH, the output remains in a high-impedance state.
Write Cycle No. 1 (WE Controlled)
Write Cycle No. 2 (CS Controlled)
DATA OUT
CURRENT
ADDRESS
ADDRESS
DATA I/O
SUPPLY
DATA IN
DATA I/O
DATA IN
V
WE
CE
CE
WE
CC
WE
CE
[10, 12]
HIGH IMPEDANCE
t
PU
(continued)
t
t
RCS
LZCE
t
DATA UNDEFINED
SA
DATA UNDEFINED
t
SA
[9]
t
ACE
50%
[9, 13]
t
SCE
t
t
AW
RC
t
WC
t
AW
t
HZWE
t
t
HZWE
WC
DATA
DATA
t
t
PWE
t
SCE
t
SD
t
SD
PWE
IN
IN
DATA VALID
VALID
VALID
HIGH IMPEDANCE
t
HD
t
LZWE
t
HA
HIGH IMPEDANCE
t
HZCE
t
RCH
t
t
PD
HD
t
50%
HA
IMPEDANCE
HIGH
C168A-6
CY7C168A
I
I
CC
SB
C168A-7
Page 5 of 10
C168A-8
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