CY7C4225-15AXC Cypress Semiconductor Corp, CY7C4225-15AXC Datasheet - Page 11

• Manufacturer Part Number: CY7C4225-15AXC
• Description: CY7C4225-15AXC
• Manufacturer: Cypress Semiconductor Corp
• Series: CY7Cr

Specifications of CY7C4225-15AXC

• Function: Synchronous
• Memory Size: 18K (1K x 18)
• Data Rate: 100MHz
• Access Time: 10ns
• Voltage - Supply: 3.3V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 64-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 428-1758; CY7C4225-15AXC

Switching Waveforms
Notes:
Document Number: 001-45652 Rev. *A
19. t
20. The clocks (RCLK, WCLK) can be free-running during reset.
21. After reset, the outputs will be LOW if OE = 0 and three-state if OE = 1.
the rising edge of WCLK and the rising edge of RCLK is less than t
SKEW2
REN, WEN,
Q
0
EF,PAE
FF,PAF,
Q
WCLK
–Q
RCLK
is the minimum time between a rising WCLK edge and a rising RCLK edge to guarantee that EF will go HIGH during the current clock cycle. It the time between
WEN
REN
0
–Q
OE
EF
17
RS
HF
LD
17
t
ENS
t
OLZ
(continued)
t
ENH
t
CLKH
t
t
A
REF
t
t
t
RSF
RSF
RSF
t
OE
t
RS
Figure 7. Read Cycle Timing
t
Figure 8. Reset Timing
CLK
t
SKEW2
NO OPERATION
SKEW2
[19]
t
CLKL
, then EF may not change state until the next RCLK edge.
[20]
VALID DATA
t
RSR
t
REF
t
OHZ
CY7C4425/4205/4215
CY7C4225/4235/4245
OE = 0
OE = 1
[21]
Page 11 of 22
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