CY7C4231V-15AC Cypress Semiconductor Corp, CY7C4231V-15AC Datasheet - Page 9

• 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
Full Flag Timing
Programmable Almost Empty Flag Timing
(if applicable)
Notes:
(if applicable)
15. t
16. PAE offset = n.
17. If a read is performed on this rising edge of the read clock, there will be Empty + (n 1) words in the FIFO when PAE goes LOW.
WEN2
WEN2
Q
D
WCLK
rising RCLK is less than t
WEN1
REN1,
WCLK
RCLK
WEN1
REN1,
SKEW2
REN2
RCLK
0
0
REN2
PAE
–D
–Q
OE
FF
8
8
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
t
DATA IN OUTPUT REGISTER
LOW
t
SKEW1
CLKH
SKEW2
[8]
t
ENS
NO WRITE
, then PAE may not change state until the next RCLK.
(continued)
t
SKEW2
t
WFF
t
t
A
ENH
t
t
ENS
ENS
[15]
t
t
ENH
ENH
t
CLKL
NO WRITE
t
DS
t
PAE
Note 16
9
DATA WRITE
DATA READ
CY7C4421V/4201V/4211V/4221V
t
ENS
t
t
SKEW1
WFF
N + 1 WORDS
[8]
CY7C4231V/4241V/4251V
t
ENS
INFIFO
t
ENS
NO WRITE
t
ENH
t
WFF
t
t
A
ENH
Note 17
NEXT DATA READ
DATA WRITE
t
42X1V–12
PAE
42X1V–11