STK16C68-W45I Cypress Semiconductor Corp, STK16C68-W45I Datasheet - Page 6

• Manufacturer Part Number: STK16C68-W45I
• Manufacturer: Cypress Semiconductor Corp
• Type: NVSRAMr

Specifications of STK16C68-W45I

• Word Size: 8b
• Organization: 8Kx8
• Density: 64Kb
• Interface Type: Parallel
• Access Time (max): 45ns
• 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: 65mA
• 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