CY7C026A-20AXC Cypress Semiconductor Corp, CY7C026A-20AXC Datasheet - Page 8

• Manufacturer Part Number: CY7C026A-20AXC
• Description: CY7C026A-20AXC
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C026A-20AXC

• Format - Memory: RAM
• Memory Type: SRAM - Dual Port, Asynchronous
• Memory Size: 256K (16K x 16)
• Speed: 20ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 100-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 428-1753; CY7C026A-20AXC

Switching Characteristics
Document #: 38-06046 Rev. *F
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
Notes
RC
AA
OHA
ACE
DOE
LZOE
HZOE
LZCE
HZCE
PU
PD
ABE
WC
SCE
AW
HA
SA
PWE
SD
HD
HZWE
LZWE
WDD
DDD
8. Test conditions assume signal transition time of 3 ns or less, timing reference levels of 1.5V, input pulse levels of 0 to 3.0V, and output loading of the specified
9. To access RAM, CE = L, UB = L, SEM = H. To access semaphore, CE = H and SEM = L. Either condition must be valid for the entire t
10. At any given temperature and voltage condition for any given device, t
11. Test conditions used are Load 2.
12. This parameter is guaranteed but not tested.
13. For information on port-to-port delay through RAM cells from writing port to reading port, refer to
14. For 15 ns industrial parts t
READ CYCLE
WRITE CYCLE
[12]
[12]
[9]
[14]
I
OI
[9]
[9]
[9]
Parameter
[13]
[13]
[10, 11, 12]
[10, 11, 12]
[10, 11, 12]
/I
[10, 11, 12]
[11, 12]
[11, 12]
OH
and 30 pF load capacitance.
Read cycle time
Address to data valid
Output hold from address change
CE LOW to data valid
OE LOW to data valid
OE LOW to Low Z
OE HIGH to High Z
CE LOW to Low Z
CE HIGH to High Z
CE LOW to Power-up
CE HIGH to Power-down
Byte enable access time
Write cycle time
CE LOW to write end
Address valid to write end
Address hold From write end
Address setup to write start
Write pulse width
Data setup to write end
Data hold from write end
R/W LOW to High Z
R/W HIGH to Low Z
Write pulse to data delay
Write data valid to read data valid
HD
minimum is 0.5 ns.
Over the Operating Range
Description
HZCE
is less than t
[8]
LZCE
and t
Min
12
15
15
12
12
10
Figure
–
3
–
3
0
–
–
0
0
–
–
–
–
3
–
0
3
–
HZOE
-15
10.
is less than t
Max
15
15
10
10
10
15
15
10
30
25
–
–
–
–
–
–
–
–
–
–
–
–
–
–
CY7C026A
LZOE
.
Min
20
20
15
15
15
15
–
3
–
–
3
–
3
–
0
–
–
0
0
0
–
3
–
–
-20
SCE
time.
Max
20
20
12
12
12
20
20
12
45
30
CY7C026A
–
–
–
–
–
–
–
–
–
–
–
–
–
–
Page 8 of 20
Unit
ns
ns
ns
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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