CY7C1399B-20ZC Cypress Semiconductor Corp, CY7C1399B-20ZC Datasheet - Page 7

• Manufacturer Part Number: CY7C1399B-20ZC
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C1399B-20ZC

• Density: 256Kb
• Access Time (max): 20ns
• Operating Supply Voltage (typ): 3.3V
• Package Type: TSOP
• Operating Temp Range: 0C to 70C
• Supply Current: 45mA
• Operating Supply Voltage (min): 3V
• Operating Supply Voltage (max): 3.6V
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 28
• Word Size: 8b
• Lead Free Status / Rohs Status: Not Compliant

Document #: 38-05071 Rev. *D
Switching Waveforms
Write Cycle No. 1 (WE Controlled)
Write Cycle No. 2 (CE Controlled)
Write Cycle No. 3 (WE Controlled, OE LOW)
Notes:
14. Data I/O is high impedance if OE = V
15. If CE goes HIGH simultaneously with WE HIGH, the output remains in a high-impedance state.
16. During this period, the I/Os are in the output state and input signals should not be applied.
ADDRESS
ADDRESS
ADDRESS
DATA I/O
DATA I/O
DATA I/O
CE
WE
WE
WE
CE
OE
CE
NOTE 16
NOTE 16
t
SA
(continued)
t
IH
SA
t
.
HZOE
t
HZWE
[9, 14, 15]
[9, 14, 15]
t
SA
[10, 15]
t
AW
t
t
AW
AW
t
WC
t
t
WC
WC
DATA
t
PWE
t
SD
DATA
DATA
IN
t
SCE
t
SD
t
VALID
SD
IN
IN
VALID
VALID
t
HD
t
t
t
HA
HA
LZWE
t
HA
t
t
HD
HD
CY7C1399B
Page 7 of 10
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