STK14C88-NF45 Cypress Semiconductor Corp, STK14C88-NF45 Datasheet - Page 6

• Manufacturer Part Number: STK14C88-NF45
• Description: IC NVSRAM 256KBIT 45NS 32SOIC
• Manufacturer: Cypress Semiconductor Corp
• Type: NVSRAMr

Specifications of STK14C88-NF45

• Format - Memory: RAM
• Memory Type: NVSRAM (Non-Volatile SRAM)
• Memory Size: 256K (32K x 8)
• Speed: 45ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 32-SOIC (7.5mm Width)
• Word Size: 8b
• Organization: 32Kx8
• Density: 256Kb
• Interface Type: Parallel
• Access Time (max): 45ns
• Operating Supply Voltage (typ): 5V
• Package Type: SOIC
• Operating Temperature Classification: Commercial
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 4.5V
• Operating Temp Range: 0C to 70C
• Pin Count: 32
• Mounting: Surface Mount
• Supply Current: 70mA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

SRAM Read Cycles #1 and #2
(VCC = 5.0V ± 10%)
Document Number: 001-52038 Rev. *B
Notes
6. W and HSB must be high during SRAM read cycles.
7. I/O state assumes E and G
8. Measured ± 200 mV from steady state output voltage.
NO.
10
11
1
2
3
4
5
6
7
8
9
t
AVAV
t
t
ELICCH
EHICCL
t
t
t
t
AXQX
EHQZ
GHQZ
#1, #2
t
t
t
t
[6]
AVQV
DQ (DATA OUT)
GLQV
GLQX
ELQV
ELQX
,
t
ELEH
ADDRESS
[7]
[8]
[8]
7
[5]
[5]
Symbols
[4]
[6]
<
V
IL
t
t
t
Alt.
t
t
t
and W ≥ V
ACS
t
t
OHZ
t
t
t
OLZ
RC
OE
OH
AA
HZ
PA
PS
LZ
Figure 4. SRAM Read Cycle 1: Address Controlled
Figure 5. SRAM Read Cycle 2: E and G Controlled
IH
; device is continuously selected.
Chip Enable Access Time
Read Cycle Time
Address Access Time
Output Enable to Data Valid
Output Hold after Address Change
Address Change or Chip Enable to
Output Active
Address Change or Chip Disable to
Output Inactive
Output Enable to Output Active
Output Disable to Output Inactive
Chip Enable to Power Active
Chip Disable to Power Standby
t
AXQX
5
10
6
Parameter
3
8
4
t
AVQV
3
t
1
AVAV
2
2
STK14C88-25 STK14C88-35 STK14C88-45
Min
25
DATA VALID
5
5
0
0
Max
10
10
25
25
10
25
29
[6, 7]
[6]
Min
35
5
5
0
0
9
Max
35
35
15
13
13
35
7
11
Min
45
5
5
0
0
STK14C88
Max
45
20
15
15
45
45
Page 6 of 19
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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