CY7C4271-10JC Cypress Semiconductor Corp, CY7C4271-10JC Datasheet - Page 11

• Manufacturer Part Number: CY7C4271-10JC
• Description: IC DEEP SYNC FIFO 32KX9 32-PLCC
• Manufacturer: Cypress Semiconductor Corp
• Series: CY7Cr

Specifications of CY7C4271-10JC

• Function: Synchronous
• Memory Size: 288K (32K x 9)
• Data Rate: 100MHz
• Access Time: 8ns
• Voltage - Supply: 3.3V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 32-PLCC
• Density: 256Kb
• Word Size: 9b
• Sync/async: Synchronous
• Expandable: Yes
• Package Type: LCC
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (min): 4.5V
• Operating Supply Voltage (max): 5.5V
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 32
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 428-1237

Document #: 38-06015 Rev. *B
Switching Waveforms
Note:
21. t
22. PAE offset= n.
23. If a read is preformed on this rising edge of the read clock, there will be Empty + (n 1) words in the FIFO when PAE goes LOW
24. If a write is performed on this rising edge of the write clock, there will be Full
25. PAF offset = m.
26. 16,384
27. t
Programmable Almost Empty Flag Timing
(if applicable)
Programmable Almost Full Flag Timing
RCLK is less than t
the rising edge of WCLK is less than t
WEN2
(if applicable)
SKEW2
SKEW2
WCLK
WEN1
REN1,
RCLK
REN2
WEN2
PAE
WCLK
REN1,
WEN1
RCLK
REN2
is the minimum time between a rising WCLK and a rising RCLK edge for PAE to change state during that clock cycle. If the time between the edge of WCLK and the rising
is the minimum time between a rising RCLK edge and a rising WCLK edge for PAF to change during that clock cycle. If the time between the rising edge of RCLK and
PAF
m words for CY7C4261, 32,768
t
SKEW2
CLKH
t
CLKH
, then PAE may not change state until the next RCLK.
(continued)
FULL
SKEW2
t
ESKEW2
, then PAF may not change state until the next WCLK.
(M+1)WORDS
IN FIFO
m words for CY7C4271.
t
t
ENS
ENS
[21]
t
t
ENS
ENS
t
t
ENH
ENH
t
t
ENH
ENH
t
CLKL
t
CLKL
t
Note
PAE
22
Note
Note
24
25
(m 1) words of the FIFO when PAF goes LOW.
t
PAF
t
t
ENS
ENS
t
SKEW2
FULL
N + 1 WORDS
IN FIFO
t
IN FIFO
ENS
t
[27]
ENS
MWORDS
[26]
t
ENH
t
ENH
Note
t
PAF
CY7C4261
CY7C4271
23
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t
PAE