CY6264-55SNXCT Cypress Semiconductor Corp, CY6264-55SNXCT Datasheet - Page 3

• Manufacturer Part Number: CY6264-55SNXCT
• Description: IC SRAM 64KBIT 55NS 28SOIC
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY6264-55SNXCT

• Format - Memory: RAM
• Memory Type: SRAM
• Memory Size: 64K (8K x 8)
• Speed: 55ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 28-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Document #: 001-02367 Rev. **
Switching Characteristics
Capacitance
READ CYCLE
t
t
t
t
t
t
t
t
t
t
t
t
t
WRITE CYCLE
t
t
t
t
t
t
t
t
t
t
t
Shaded areas contain advance information.
C
C
Notes:
RC
AA
OHA
ACE1
ACE2
DOE
LZOE
HZOE
LZCE1
LZCE2
HZCE
PU
PD
WC
SCE1
SCE2
AW
HA
SA
PWE
SD
HD
HZWE
LZWE
3. Test conditions assume signal transition time of 5 ns or less, timing reference levels of 1.5V, input pulse levels of 0 to 3.0V, and output loading of the specified
4. t
5. At any given temperature and voltage condition, t
6. The internal write time of the memory is defined by the overlap of CE
7. Tested initially and after any design or process changes that may affect these parameters.
IN
OUT
Parameter
I
signal can terminate a write by going HIGH. The data input set-up and hold timing should be referenced to the rising edge of the signal that terminates the write.
OL
HZOE,
/I
OH
Parameter
t
HZCE
and 30-pF load capacitance.
, and t
[6]
[7]
HZWE
Read Cycle Time
Address to Data Valid
Data Hold from Address Change
CE
CE
OE LOW to Data Valid
OE LOW to Low Z
OE HIGH to High Z
CE
CE
CE
CE
CE
CE
Write Cycle Time
CE
CE
Address Set-Up to Write End
Address Hold from Write End
Address Set-Up to Write Start
WE Pulse Width
Data Set-Up to Write End
Data Hold from Write End
WE LOW to High Z
WE HIGH to Low Z
1
2
1
2
1
2
1
1
1
2
are specified with C
LOW to Data Valid
HIGH to Data Valid
LOW to Low Z
HIGH to Low Z
HIGH to High Z
LOW to High Z
LOW to Power-Up
HIGH to Power-Down
LOW to Write End
HIGH to Write End
Input Capacitance
Output Capacitance
Over the Operating Range
Description
Description
[5]
[4]
[4]
L
[4, 5]
= 5 pF as in part (b) of AC Test Loads. Transition is measured ±500 mV from steady-state voltage.
HZCE
is less than t
LZCE
1
LOW, CE
T
V
A
CC
for any given device.
[3]
= 25°C, f = 1 MHz,
= 5.0V
Test Conditions
2
HIGH, and WE LOW. Both signals must be LOW to initiate a write and either
Min.
55
50
40
30
40
25
25
5
3
5
3
0
0
0
0
5
6264-55
Max.
55
55
40
25
20
20
25
20
Min.
Max.
70
70
60
50
55
40
35
5
5
5
5
0
0
0
0
5
7
7
6264-70
Max.
70
70
70
35
30
30
30
30
CY6264
Page 3 of 10
Unit
pF
pF
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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