CY7C4225-15AC Cypress Semiconductor Corp, CY7C4225-15AC Datasheet - Page 10

• Manufacturer Part Number: CY7C4225-15AC
• Description: IC SYNC FIFO MEM 1KX18 64LQFP
• Manufacturer: Cypress Semiconductor Corp
• Series: CY7Cr

Specifications of CY7C4225-15AC

• 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
• Configuration: Dual
• Density: 18Kb
• Access Time (max): 10ns
• Word Size: 18b
• Organization: 1Kx18
• Sync/async: Synchronous
• Expandable: Yes
• Bus Direction: Uni-Directional
• Package Type: TQFP
• Clock Freq (max): 66.7MHz
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (min): 4.5V
• Operating Supply Voltage (max): 5.5V
• Supply Current: 45mA
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 64
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 428-1217

Document #: 38-06029 Rev. *C
Switching Characteristics
Switching Waveforms
Write Cycle Timing
Note:
14. t
t
t
t
t
t
t
XO
XI
XIS
SKEW1
SKEW2
SKEW3
Parameter
between the rising edge of RCLK and the rising edge of WCLK is less than t
SKEW1
D
0
WCLK
RCLK
–D
WEN
REN
is the minimum time between a rising RCLK edge and a rising WCLK edge to guarantee that FF will go HIGH during the current clock cycle. If the time
17
FF
Clock to Expansion Out
Expansion in Pulse Width
Expansion in Set-up Time
Skew Time between Read Clock and Write Clock for
Full Flag
Skew Time between Read Clock and Write Clock for
Empty Flag
Skew Time between Read Clock and Write Clock for
Programmable Almost Empty and Programmable
Almost Full Flags.
t
SKEW1
Over the Operating Range (continued)
Description
t
[14]
CLKH
t
WFF
t
CLK
t
DS
t
CLKL
t
ENS
SKEW1
, then FF may not change state until the next WCLK edge.
7C42X5V-15
Min.
6.5
15
5
6
6
t
DH
t
ENH
Max.
10
t
WFF
CY7C4225V/4205V/4215V
CY7C4425V/4235V/4245V
7C42X5V-25
Min.
10
10
10
10
18
NO OPERATION
Max.
15
7C42X5V-35
Min.
14
15
12
12
20
Page 10 of 20
Max.
20
Unit
ns
ns
ns
ns
ns
ns
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