CY7C4231V-25AC Cypress Semiconductor Corp, CY7C4231V-25AC Datasheet - Page 8

• Manufacturer Part Number: CY7C4231V-25AC
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C4231V-25AC

• Configuration: Dual
• Density: 18Kb
• Access Time (max): 15ns
• Word Size: 9b
• Organization: 2Kx9
• Sync/async: Synchronous
• Expandable: Yes
• Bus Direction: Uni-Directional
• Package Type: TQFP
• Clock Freq (max): 40MHz
• Operating Supply Voltage (typ): 3.3V
• Operating Supply Voltage (min): 3V
• Operating Supply Voltage (max): 3.6V
• Supply Current: 20mA
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 32
• Lead Free Status / RoHS Status: Not Compliant

Document #: 38-06010 Rev. *B
Switching Characteristics
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
Notes:
10. Values guaranteed by design, not currently tested.
S
A
CLK
CLKH
CLKL
DS
DH
ENS
ENH
RS
RSS
RSR
RSF
OLZ
OE
OHZ
WFF
REF
PAF
PAE
SKEW1
SKEW2
9. Pulse widths less than minimum values are not allowed.
Parameter
Clock Cycle Frequency
Data Access Time
Clock Cycle Time
Clock HIGH Time
Clock LOW Time
Data Set-Up Time
Data Hold Time
Enable Set-Up Time
Enable Hold Time
Reset Pulse Width
Reset Set-Up Time
Reset Recovery Time
Reset to Flag and Output Time
Output Enable to Output in Low Z
Output Enable to Output Valid
Output Enable to Output in High Z
Write Clock to Full Flag
Read Clock to Empty Flag
Clock to Programmable Almost-Full Flag
Clock to Programmable Almost-Full Flag
Skew Time between Read Clock and Write Clock
for Empty Flag and Full Flag
Skew Time between Read Clock and Write Clock
for Almost-Empty Flag and Almost-Full Flag
[9]
Description
Over the Operating Range
[10]
[10]
Min.
7C42X1V-15
15
15
10
10
15
2
1
1
0
3
3
6
6
6
4
4
CY7C4421V/4201V/4211V/4221V
Max.
66.7
11
18
11
11
16
16
8
8
CY7C4231V/4241V/4251V
Min.
7C42X1V-25
25
10
10
25
15
15
10
18
2
6
2
6
2
0
3
3
Max.
15
25
12
15
15
22
22
40
12
Min.
7C42X1V-35
35
14
14
35
20
20
12
20
2
7
2
7
2
0
3
3
Max.
28.6
20
35
15
15
20
20
25
25
Page 8 of 18
MHz
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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