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STK10C68-5C55M View Datasheet(PDF) - Simtek Corporation

Part NameDescriptionManufacturer
STK10C68-5C55M 8K x 8 nvSRAM QuantumTrap™ CMOS Nonvolatile Static RAM Simtek
Simtek Corporation Simtek
STK10C68-5C55M Datasheet PDF : 12 Pages
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STK10C68
STK10C68-M SMD#5962-93056
8K x 8 nvSRAM
QuantumTrap™ CMOS
Nonvolatile Static RAM
Obsolete - Not Recommend for new Designs
FEATURES
• 25ns, 35ns, 45ns and 55ns Access Times
STORE to Nonvolatile Elements Initiated by
Hardware
RECALL to SRAM Initiated by Hardware or
Power Restore
• Automatic STORE Timing
• 10mA Typical ICC at 200ns Cycle Time
• Unlimited READ, WRITE and RECALL Cycles
• 1,000,000 STORE Cycles to Nonvolatile Ele-
ments (Industrial/Commercial)
• 100-Year Data Retention (Industrial/Commer-
cial)
• Commercial, Industrial and Military Tempera-
tures
• 28-Pin DIP, SOIC and LCC Packages
BLOCK DIAGRAM
QUANTUM TRAP
128 x 512
A5
A6
STORE
A7
STATIC RAM
A8
ARRAY
RECALL
A9
128 x 512
A11
A12
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
COLUMN I/O
COLUMN DEC
A0 A1 A2 A3 A4 A10
DESCRIPTION
The Simtek STK10C68 is a fast static RAM with a nonvol-
atile element incorporated in each static memory cell. The
SRAM can be read and written an unlimited number of
times, while independent nonvolatile data resides in Non-
volatile Elements. Data may easily be transferred from
the SRAM to the Nonvolatile Elements (the STORE oper-
ation), or from the Nonvolatile Elements to the SRAM
(the RECALL operation), using the NE pin. Transfers
from the Nonvolatile Elements to the SRAM (the
RECALL operation) also take place automatically on
restoration of power. The STK10C68 combines the high
performance and ease of use of a fast SRAM with nonvol-
atile data integrity.
The STK10C68 features industry-standard pinout for non-
volatile RAMs. MIL-STD-883 and Standard Military Draw-
ing (SMD #5962-93056) devices are available.
PIN CONFIGURATIONS
NE 1
A12 2
A7 3
A6 4
A5 5
A4 6
A3 7
A2 8
A1 9
A0 10
DQ0 11
DQ1 12
DQ2 13
VSS 14
28 VCC
27 W
26 NC
25 A8
24 A9
23 A11
22 G
21 A10
20 E
19 DQ7
18 DQ6
17 DQ5
16 DQ4
15 DQ3
28 - LCC
28 - DIP
28 - SOIC
STORE/
RECALL
CONTROL
G
NE
E
W
PIN NAMES
A0 - A12
W
DQ0 - DQ7
E
G
NE
VCC
VSS
Address Inputs
Write Enable
Data In/Out
Chip Enable
Output Enable
Nonvolatile Enable
Power (+ 5V)
Ground
March 2006
1 Document Control # ML0006 rev 0.2
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