STK16C68-W25I Cypress Semiconductor Corp, STK16C68-W25I Datasheet - Page 6
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STK16C68-W25I
Manufacturer Part Number
STK16C68-W25I
Description
Manufacturer
Cypress Semiconductor Corp
Type
NVSRAMr
Datasheet
1.STK16C68-W25I.pdf
(10 pages)
Specifications of STK16C68-W25I
Word Size
8b
Organization
8Kx8
Density
64Kb
Interface Type
Parallel
Access Time (max)
25ns
Operating Supply Voltage (typ)
5V
Package Type
PDIP
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
Through Hole
Supply Current
90mA
Lead Free Status / Rohs Status
Not Compliant
March 2006
STK16C68
SOFTWARE STORE/RECALL MODE SELECTION
Note l:
SOFTWARE STORE/RECALL CYCLE
Note m: The software sequence is clocked with E controlled READs.
Note n: The six consecutive addresses must be in the order listed in the Software STORE/RECALL Mode Selection Table: (0000, 1555, 0AAA, 1FFF,
SOFTWARE STORE/RECALL CYCLE: E Controlled
DQ (DATA OUT)
NO.
26
27
28
29
30
31
E
L
L
ADDRESS
SYMBOLS
The six consecutive addresses must be in the order listed. W must be high during all six consecutive cycles to enable a nonvolatile cycle.
10F0, 0F0F) for a STORE cycle or (0000, 1555, 0AAA, 1FFF, 10F0, 0F0E) for a RECALL cycle. W must be high during all six consecutive
cycles.
t
t
t
t
t
t
AVAV
AVEL
ELEH
ELAX
RECALL
STORE
E
W
H
H
m
g, m
m
G
X
X
STORE/RECALL Initiation Cycle Time
Address Set-up Time
Clock Pulse Width
Address Hold Time
RECALL Cycle Duration
STORE Cycle Duration
t
AVEL
27
ADDRESS #1
A
t
12
AVAV
26
- A
0AAA
0AAA
0000
1555
1FFF
10F0
0F0F
0000
1555
1FFF
10F0
0F0E
0
PARAMETER
t
DATA VALID
ELEH
28
(hex)
t
ELAX
29
Nonvolatile
Nonvolatile
Read SRAM
Read SRAM
Read SRAM
Read SRAM
Read SRAM
Read SRAM
Read SRAM
Read SRAM
Read SRAM
Read SRAM
m, n
MODE
RECALL
STORE
6
ADDRESS #6
MIN
STK16C68-25
25
20
20
0
Document Control # ML0010 rev 0.2
t
AVAV
26
n
DATA VALID
I/O with G Low
MAX
Output High Z
Output High Z
20
10
Output Data
Output Data
Output Data
Output Data
Output Data
Output Data
Output Data
Output Data
Output Data
Output Data
MIN
STK16C68-35
t
35
25
20
STORE
0
31
HIGH IMPEDANCE
/
t
MAX
RECALL
20
10
30
(V
I/O with G High
Output High Z
Output High Z
Output High Z
Output High Z
Output High Z
Output High Z
Output High Z
Output High Z
Output High Z
Output High Z
Output High Z
Output High Z
MIN
CC
STK16C68-45
45
30
20
0
= 5.0V ± 10%)
MAX
20
10
UNITS
NOTES
ms
ns
ns
ns
ns
μs
l
l