CY7C187-15PC Cypress Semiconductor Corp, CY7C187-15PC Datasheet - Page 5

• Manufacturer Part Number: CY7C187-15PC
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C187-15PC

• Density: 64Kb
• Access Time (max): 15ns
• Operating Supply Voltage (typ): 5V
• Package Type: DIP
• Operating Temp Range: 0C to 70C
• Supply Current: 90mA
• Operating Supply Voltage (min): 4.5V
• Operating Supply Voltage (max): 5.5V
• Operating Temperature Classification: Commercial
• Mounting: Through Hole
• Pin Count: 22
• Word Size: 1b
• Lead Free Status / Rohs Status: Not Compliant

Switching Waveforms
Document #: 38-05044 Rev. **
Write Cycle No. 1 (WE Controlled)
Write Cycle No. 2 (CE Controlled)
Read Cycle No. 2
Notes:
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.
DATA OUT
ADDRESS
DATA OUT
CURRENT
DATA OUT
ADDRESS
DATA IN
SUPPLY
DATA IN
V
WE
CE
CE
WE
CE
CC
[10, 12]
HIGH IMPEDANCE
t
PU
t
t
LZCE
SA
t
DATA UNDEFINED
SA
[11]
[11, 13]
t
ACE
50%
t
SCE
t
AW
t
t
AW
RC
t
t
WC
WC
t
SD
DATA VALID
t
SCE
t
PWE
t
HZWE
DATA VALID
t
PWE
t
SD
DATA VALID
HIGH IMPEDANCE
HIGH IMPEDANCE
t
t
HD
HD
t
LZWE
t
t
HA
HA
t
HZCE
t
PD
50%
CY7C187
IMPEDANCE
HIGH
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