STK14C88-NF35ITR Cypress Semiconductor Corp, STK14C88-NF35ITR Datasheet - Page 9

• Manufacturer Part Number: STK14C88-NF35ITR
• Description: IC NVSRAM 256KBIT 35NS 32SOIC
• Manufacturer: Cypress Semiconductor Corp

Specifications of STK14C88-NF35ITR

• 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: -40°C ~ 85°C
• Package / Case: 32-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

AutoStore/Power up RECALL
Document Number: 001-52038 Rev. *B
Notes
NO.
15. t
16. HSB is asserted low for 1
27
28
29
30
31
32
takes place.
RESTORE
Standard
t
V
RESTORE
V
t
t
STORE
SWITCH
t
DELAY
RESET
VSBL
starts from the time V
POWER UP RECALL
DQ (DATA OUT)
Symbols
V
V
AutoStore
SWITCH
31
27
RESET
HSB
μs
t
t
W
HLHZ
BLQZ
when V
Alt.
V
CC
CC
rises above V
CAP
POWER UP
RECALL
t
RESTORE
drops through V
Power up RECALL Duration
STORE Cycle Duration
Low Voltage Trigger (V
Low
Time Allowed to Complete SRAM
Cycle
Low Voltage Trigger Level
Low Voltage Reset Level
28
SWITCH
Figure 9. AutoStore/POWER UP RECALL
(NO SRAM Writes)
(V
BELOW V
CC
BROWN OUT
NO RECALL
SWITCH
.
NO STORE
DID NOT GO
Parameter
. If an SRAM write has not taken place since the last nonvolatile cycle, HSB is released and no STORE
RESET
)
SWITCH
) to HSB
(V
BELOW V
CC
BROWN OUT
NO RECALL
t
VSBL
AutoStore
30
DID NOT GO
t
DELAY
31
RESET
)
Min
4.0
1
STK14C88
ABOVE V
RECALL WHEN
V
BROWN OUT
CC
t
STORE
AutoStore
29
RETURNS
Max
550
300
4.5
3.6
10
SWITCH
STK14C88
Unit
ms
μs
ns
μs
V
V
Page 9 of 19
Notes
13, 16
15
13
11
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