STK14C88-3NF45I Cypress Semiconductor Corp, STK14C88-3NF45I Datasheet - Page 13

• Manufacturer Part Number: STK14C88-3NF45I
• Description: IC NVSRAM 256KBIT 45NS 32SOIC
• Manufacturer: Cypress Semiconductor Corp
• Type: NVSRAMr

Specifications of STK14C88-3NF45I

• Format - Memory: RAM
• Memory Type: NVSRAM (Non-Volatile SRAM)
• Memory Size: 256K (32K x 8)
• Speed: 45ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-SOIC (7.5mm Width)
• Word Size: 8b
• Organization: 32Kx8
• Density: 256Kb
• Interface Type: Parallel
• Access Time (max): 45ns
• Operating Supply Voltage (typ): 3.3V
• Package Type: SOIC
• Operating Temperature Classification: Industrial
• Operating Supply Voltage (max): 3.6V
• Operating Supply Voltage (min): 3V
• Operating Temp Range: -40C to 85C
• Pin Count: 32
• Mounting: Surface Mount
• Supply Current: 44mA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

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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