STK12C68-5K35M Cypress Semiconductor Corp, STK12C68-5K35M Datasheet - Page 12

• Manufacturer Part Number: STK12C68-5K35M
• Description: STK12C68-5K35M
• Manufacturer: Cypress Semiconductor Corp
• Type: NVSRAMr

Specifications of STK12C68-5K35M

• Format - Memory: RAM
• Memory Type: NVSRAM (Non-Volatile SRAM)
• Memory Size: 64K (8K x 8)
• Speed: 35ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: -55°C ~ 125°C
• Package / Case: 28-CDIP (0.300", 7.62mm)
• Word Size: 8b
• Organization: 8Kx8
• Density: 64Kb
• Interface Type: Parallel
• Access Time (max): 35ns
• Operating Supply Voltage (typ): 5V
• Operating Temperature Classification: Military
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 4.5V
• Operating Temp Range: -55C to 125C
• Pin Count: 28
• Mounting: Through Hole
• Supply Current: 75mA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Software Controlled STORE/RECALL Cycle
The software controlled STORE/RECALL cycle follows.
Switching Waveform
Document Number: 001-51026 Rev. **
Notes
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
DATA VALID
D
Figure 13. 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
Table 1
[18]
on page 6. WE must be HIGH during all six consecutive cycles.
A
D
D
t
R
STK12C68-5 (SMD5962-94599)
RC
E
S
DATA VALID
S
#
6
Min
35
25
20
0
35 ns
t
STORE
[18]
HIGH IMPEDANCE
Max
20
/ t
RECALL
Min
55
30
20
0
55 ns
Max
Page 12 of 18
20
Unit
ns
μs
ns
ns
ns
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