CY7C0251-15AC Cypress Semiconductor Corp, CY7C0251-15AC Datasheet - Page 14

• Manufacturer Part Number: CY7C0251-15AC
• Description: IC SRAM 144KBIT 15NS 100LQFP
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C0251-15AC

• Format - Memory: RAM
• Memory Type: SRAM - Dual Port, Asynchronous
• Memory Size: 144K (8K x 18)
• Speed: 15ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 100-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 428-1159

Switching Waveforms
Document #: 38-06035 Rev. **
Interrupt Timing Diagrams
Left Side Sets INT
Right Side Clears INT
Right Side Sets INT
Left Side Clears INT
Notes:
38. t
39. t
ADDRESS
ADDRESS
ADDRESS
ADDRESS
HA
INS
R/W
R/W
R/W
R/W
INT
depends on which enable pin (CE
INT
OE
or t
INT
OE
INT
CE
CE
CE
CE
INR
R
R
R
R
R
R
R
L
L
L
L
R
R
L
L
R
L
L
depends on which enable pin (CE
R
L
:
L
:
R
:
:
(continued)
L
t
INS
or R/W
t
WRITE FFF (1FFF CY7C025)
INS
WRITE FFE (1FFE CY7C025)
[39]
[39]
L
L
or R/W
) is deasserted first.
t
L
INR
) is asserted last.
t
WC
[39]
t
WC
t
INR
t
t
[39]
HA
HA
[38]
[38]
(1FFE CY7C025)
(1FFF CY7C025)
READ FFE
READ FFF
t
t
RC
RC
CY7C024/0241
CY7C025/0251
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