CY7C025-25AC Cypress Semiconductor Corp, CY7C025-25AC Datasheet - Page 16

• Manufacturer Part Number: CY7C025-25AC
• Description: IC,SRAM,8KX16,CMOS,QFP,100PIN,PLASTIC
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C025-25AC

• Format - Memory: RAM
• Memory Type: SRAM - Dual Port, Asynchronous
• Memory Size: 128K (8K x 16)
• Speed: 25ns
• 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

Switching Waveforms
Notes
Document #: 38-06035 Rev. *D
Left Side Sets INT
Right Side Clears INT
Right Side Sets INT
Left Side Clears INT
43. t
44. t
ADDRESS
ADDRESS
ADDRESS
ADDRESS
HA
INS
depends on which enable pin (CE
or t
R/W
R/W
R/W
R/W
INT
INT
OE
INR
INT
OE
INT
CE
CE
CE
CE
depends on which enable pin (CE
R
R
R
R
R
R
R
L
L
L
L
L
L
R
R
R
L
L
R
L
:
L
:
R
:
:
(continued)
L
t
INS
or R/W
t
WRITE FFF (1FFF CY7C025)
INS
WRITE FFE (1FFE CY7C025)
[44]
[44]
L
L
or R/W
) is deasserted first.
Figure 15. Interrupt Timing Diagrams
t
L
INR
) is asserted last.
t
WC
[44]
t
WC
t
INR
t
t
[44]
HA
HA
[43]
[43]
(1FFE CY7C025)
(1FFF CY7C025)
READ FFE
READ FFF
t
t
RC
RC
CY7C024/024A/0241
CY7C025/0251
Page 16 of 21
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