CY7C4231V-15AC Cypress Semiconductor Corp, CY7C4231V-15AC Datasheet - Page 10

• Manufacturer Part Number: CY7C4231V-15AC
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C4231V-15AC

• Density: 16Kb
• Word Size: 9b
• Sync/async: Synchronous
• Expandable: Yes
• Package Type: TQFP
• Operating Supply Voltage (typ): 3.3V
• Operating Supply Voltage (min): 3V
• Operating Supply Voltage (max): 3.6V
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 32
• Lead Free Status / Rohs Status: Not Compliant

Switching Waveforms
Programmable Almost Full Flag Timing
Write Programmable Registers
(if applicable)
Notes:
18. If a write is performed on this rising edge of the write clock, there will be Full – (m–1) words of the FIFO when PAF goes LOW.
19. PAF offset = m.
20. 64–m words for CY7C4421V, 256-m words in FIFO for CY7C4201V, 512–m words for CY7C4211V, 1024–m words for CY7C4221V, 2048–m words for
21. t
WEN2/LD
WEN2
WEN1
CY7C4231V, 4096–m words for CY7C4241V, 8192–m words for CY7C4251V.
and the rising edge of WCLK is less than t
WCLK
WCLK
D
WEN1
REN1,
SKEW2
RCLK
REN2
0
PAF
–D
8
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
t
t
CLKH
CLKH
FULL
(continued)
t
CLK
t
t
ENS
ENS
SKEW2
t
IN FIFO
DS
M+1 WORDS
PAE OFFSET
t
t
, then PAF may not change state until the next WCLK.
ENS
ENS
LSB
t
t
ENH
ENH
t
t
CLKL
CLKL
t
ENH
t
DH
Note 19
Note 18
PAE OFFSET
10
MSB
t
PAF
CY7C4421V/4201V/4211V/4221V
t
ENS
PAF OFFSET
t
SKEW2
FULL
LSB
CY7C4231V/4241V/4251V
IN FIFO
t
[21]
ENS
M WORDS
t
[20]
ENH
PAF OFFSET
MSB
t
PAF
42X1V–13
42X1V–14