STK16C88-WF25 Cypress Semiconductor Corp, STK16C88-WF25 Datasheet - Page 12

• Manufacturer Part Number: STK16C88-WF25
• Description: STK16C88-WF25
• Manufacturer: Cypress Semiconductor Corp
• Type: NVSRAMr

Specifications of STK16C88-WF25

• Format - Memory: RAM
• Memory Type: NVSRAM (Non-Volatile SRAM)
• Memory Size: 256K (32K x 8)
• Speed: 25ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 28-DIP (0.600", 15.24mm)
• Word Size: 8b
• Organization: 32Kx8
• Density: 256Kb
• Interface Type: Parallel
• Access Time (max): 25ns
• Operating Supply Voltage (typ): 5V
• Package Type: PDIP
• Operating Temperature Classification: Commercial
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 4.5V
• Operating Temp Range: 0C to 70C
• Pin Count: 28
• Mounting: Through Hole
• Supply Current: 97mA
• 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 Waveforms
Document Number: 001-50595 Rev. *B
Notes
t
t
t
t
t
11. The software sequence is clocked on the falling edge of CE without involving OE (double clocking aborts the sequence).
12. The six consecutive addresses must be read in the order listed in the Mode Selection table. WE must be HIGH during all six consecutive cycles.
RC
SA
CW
HACE
RECALL
Parameter
[11]
[11]
ADDRESS
DQ (DATA)
[7, 11]
CE
OE
t
t
t
t
AVAV
AVEL
ELEH
ELAX
Alt
t
SA
A
D
DATA VALID
D
Figure 10. CE Controlled Software STORE/RECALL Cycle
R
t
t
SCE
RC
E
STORE/RECALL Initiation Cycle Time
Address Setup Time
Clock Pulse Width
Address Hold Time
RECALL Duration
S
t
HACE
S
#
1
Description
[11, 12]
A
D
D
t
R
RC
E
S
DATA VALID
S
#
Min
25
20
20
6
0
25 ns
t
STORE
[12]
Max
HIGH IMPEDANCE
20
/ t
RECALL
Min
45
30
20
0
45 ns
STK16C88
Max
Page 12 of 15
20
Unit
ns
ns
ns
ns
μs
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