STK14C88-3NF35 Cypress Semiconductor Corp, STK14C88-3NF35 Datasheet - Page 13

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STK14C88-3NF35

Manufacturer Part Number
STK14C88-3NF35
Description
IC NVSRAM 256KBIT 35NS 32SOIC
Manufacturer
Cypress Semiconductor Corp
Datasheet

Specifications of STK14C88-3NF35

Format - Memory
RAM
Memory Type
NVSRAM (Non-Volatile SRAM)
Memory Size
256K (32K x 8)
Speed
35ns
Interface
Parallel
Voltage - Supply
4.5 V ~ 5.5 V
Operating Temperature
0°C ~ 70°C
Package / Case
32-SOIC (7.5mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

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Software Controlled STORE/RECALL Cycle
The software controlled STORE/RECALL cycle follows.
Document Number: 001-50592 Rev. *A
Switching Waveforms
Notes
t
t
t
t
t
18. The software sequence is clocked on the falling edge of CE without involving OE (double clocking will abort the sequence).
19. 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
[18, 19]
[16]
ADDRESS
[18, 19]
DQ (DATA)
[18, 19]
CE
OE
t
t
t
t
AVAV
AVEL
ELEH
ELAX
Alt
t
SA
A
D
DATA VALID
D
Figure 12. 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
[18, 19]
A
D
D
t
R
RC
E
S
DATA VALID
S
#
Min
35
25
20
6
0
35 ns
t
STORE
[19]
Max
HIGH IMPEDANCE
20
/ t
RECALL
Min
45
30
20
0
STK14C88-3
45 ns
Max
Page 13 of 17
20
Unit
ns
ns
ns
ns
μs
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