STK12C68-SF25I Cypress Semiconductor Corp, STK12C68-SF25I Datasheet - Page 15
![STK12C68-SF25I](/photos/28/21/282134/28-soic_sml.jpg)
STK12C68-SF25I
Manufacturer Part Number
STK12C68-SF25I
Description
STK12C68-SF25I
Manufacturer
Cypress Semiconductor Corp
Type
NVSRAMr
Specifications of STK12C68-SF25I
Format - Memory
RAM
Memory Type
NVSRAM (Non-Volatile SRAM)
Memory Size
64K (8K x 8)
Speed
25ns
Interface
Parallel
Voltage - Supply
4.5 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Package / Case
28-SOIC (8.69mm width)
Word Size
8b
Organization
8Kx8
Density
64Kb
Interface Type
Parallel
Access Time (max)
25ns
Operating Supply Voltage (typ)
5V
Package Type
SOIC
Operating Temperature Classification
Industrial
Operating Supply Voltage (max)
5.5V
Operating Supply Voltage (min)
4.5V
Operating Temp Range
-40C to 85C
Pin Count
28
Mounting
Surface Mount
Supply Current
85mA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Software Controlled STORE/RECALL Cycle
The software controlled STORE/RECALL cycle follows.
Switching Waveform
Notes
Document Number: 001-51027 Rev. *C
t
t
t
t
t
17. The software sequence is clocked on the falling edge of CE without involving OE (double clocking aborts the sequence).
18. The six consecutive addresses must be read in the order listed in
RC
SA
CW
HACE
RECALL
Parameter
[17]
[14]
[17]
ADDRESS
DQ (DATA)
[17]
CE
OE
t
t
t
t
AVAV
AVEL
ELEH
ELAX
Alt
t
SA
A
D
STORE/RECALL Initiation Cycle Time
Address Setup Time
Clock Pulse Width
Address Hold Time
RECALL Duration
DATA VALID
D
Figure 12. CE Controlled Software STORE/RECALL Cycle
R
t
t
SCE
RC
E
S
t
HACE
S
#
1
Description
Table 1
[18]
on page 7. WE must be HIGH during all six consecutive cycles.
Min
A
25
20
20
0
D
D
25 ns
t
R
RC
E
S
DATA VALID
S
Max
#
20
6
t
Min
35
25
20
STORE
0
[18]
35 ns
HIGH IMPEDANCE
/ t
Max
RECALL
20
Min
45
30
20
0
45 ns
STK12C68
Page 15 of 24
Max
20
Unit
ns
ns
ns
ns
μs
[+] Feedback