STK14C88-NF45 Cypress Semiconductor Corp, STK14C88-NF45 Datasheet - Page 10
![IC NVSRAM 256KBIT 45NS 32SOIC](/photos/31/34/313454/42832soic_sml.jpg)
STK14C88-NF45
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
STK14C88-NF45
Manufacturer:
SIMTER
Quantity:
20 000
Company:
Part Number:
STK14C88-NF45I
Manufacturer:
SIMTEK
Quantity:
5 947
Part Number:
STK14C88-NF45I
Manufacturer:
SIMTEK
Quantity:
20 000
Company:
Part Number:
STK14C88-NF45ITR
Manufacturer:
SIMTEK
Quantity:
7 145
AC Switching Characteristics
SRAM Read Cycle
Switching Waveforms
Document Number: 001-50592 Rev. *B
t
t
t
t
t
t
t
t
t
t
t
Notes
ACE
RC
AA
DOE
OHA
LZCE
HZCE
LZOE
HZOE
PU
PD
9. WE and HSB must be HIGH during SRAM Read Cycles.
10. I/O state assumes CE and OE < V
11. Measured ±200 mV from steady state output voltage.
Parameter
[10]
[9]
[8]
[8]
Cypress
[10]
[11]
[11]
[11]
[11]
Parameter
t
t
t
t
t
t
t
t
t
t
t
ELQV
AVAV,
AVQV
GLQV
AXQX
ELQX
EHQZ
GLQX
GHQZ
ELICCH
EHICCL
t
ELEH
Alt
IL
and WE > V
Figure 7. SRAM Read Cycle 1: Address Controlled
Figure 8. SRAM Read Cycle 2: CE and OE Controlled
Chip Enable Access Time
Read Cycle Time
Address Access Time
Output Enable to Data Valid
Output Hold After Address Change
Chip Enable to Output Active
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
IH
; device is continuously selected.
Description
Min
35
5
5
0
0
35 ns
[9, 10]
[9]
Max
15
13
13
35
35
35
Min
45
5
5
0
0
45 ns
STK14C88-3
Max
45
45
20
15
15
45
Page 10 of 17
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
[+] Feedback
[+] Feedback
[+] Feedback