STK15C88-S35I Cypress Semiconductor Corp, STK15C88-S35I Datasheet - Page 6

• Manufacturer Part Number: STK15C88-S35I
• Manufacturer: Cypress Semiconductor Corp
• Type: NVSRAMr

Specifications of STK15C88-S35I

• Word Size: 8b
• Organization: 32Kx8
• Density: 256Kb
• Interface Type: Parallel
• Access Time (max): 35ns
• 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: 80mA
• Lead Free Status / Rohs Status: Not Compliant

STK15C88
SOFTWARE MODE SELECTION
Note l:
Note m: While there are 15 addresses on the STK15C88, only the lower 14 are used to control software modes.
SOFTWARE CYCLES #1 & #2
Note n: The software sequence is clocked with E controlled reads.
Note o: The six consecutive addresses must be in the order listed in the SOFTWARE MODE SELECTION Table - (0E38, 31C7, 03E0, 3C1F, 303F,
SOFTWARE CYCLE: E CONTROLLED
August 1998
NO.
27
28
29
30
31
32
DQ(Data Out)
E
L
L
ADDRESS
SYMBOLS
The six consecutive addresses must be in order listed. W must be high during all six consecutive cycles to enable a nonvolatile cycle.
0FC0) for a STORE cycle or (0E38, 31C7, 03E0, 3C1F, 303F, 0C63) for a RECALL cycle. W must be high during all six consecutive cycles.
t
t
t
t
t
t
AVAV
ELQZ
AVEL
ELEH
ELAX
RECALL
#1
n
g,n
g,n
n
E
W
H
H
STORE / RECALL initiation cycle time
End of Sequence to Outputs Inactive
Address Set-up Time
Clock Pulse Width
Address Hold Time
Recall Duration
t
AVEL
29
A
13
- A
0E38
31C7
03E0
3C1F
0FC0
0E38
31C7
03E0
3C1F
0C63
303F
303F
ADDRESS #1
t
0
DATA VALID
t
ELEH
(hex)
AVAV
30
PARAMETER
27
t
ELAX
31
n,o
Nonvolatile
Nonvolatile
Read SRAM
Read SRAM
Read SRAM
Read SRAM
Read SRAM
Read SRAM
Read SRAM
Read SRAM
Read SRAM
Read SRAM
MODE
5-40
RECALL
STORE
ADDRESS #6
MIN
STK15C88-25
t
25
20
20
0
AVAV
27
t
DATA VALID
MAX
ELQZ
650
20
Output high Z
Output high Z
28
Output data
Output data
Output data
Output data
Output data
Output data
Output data
Output data
Output data
Output data
t
I/O
STORE
MIN
STK15C88-35
35
25
20
0
23
t
HIGH IMPEDANCE
MAX
RECALL
650
20
32
(V
CC
MIN
STK15C88-45
45
30
20
0
= 5.0V
NOTES
MAX
l,m
l,m
650
20
UNITS
10%)
ns
ns
ns
ns
ns
s