5962-9459902MYA Cypress Semiconductor Corp, 5962-9459902MYA Datasheet

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5962-9459902MYA

Manufacturer Part Number
5962-9459902MYA
Description
Manufacturer
Cypress Semiconductor Corp
Type
NVSRAMr
Datasheet

Specifications of 5962-9459902MYA

Word Size
8b
Organization
8Kx8
Density
64Kb
Interface Type
Parallel
Access Time (max)
45ns
Operating Supply Voltage (typ)
5V
Package Type
CLCC
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
Surface Mount
Supply Current
80mA
Lead Free Status / RoHS Status
Not Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
5962-9459902MYA
Manufacturer:
CYPRESS
Quantity:
497
LOGIC BLOCK DIAGRAM
DQ
DQ
DQ
DQ
DQ
DQ
DQ
DQ
FEATURES
• 40, 45 and 55ns Access Times
• 15 mA I
• Automatic
• Hardware or Software initiated
• Automatic
• 100,000
• 10 year data retention in
• Automatic
• Software initiated
• Unlimited
• Single 5V 10% Operation
• Available in multiple standard packages
A
A
A
A
A
A
A
A
12
3
4
5
6
7
8
9
0
1
2
3
4
5
6
7
EEPROM
CC
STORE
RECALL
at 200ns Access Speed
STORE
STORE
RECALL
cycles to
A
0
Timing
RECALL
cycles from
COLUMN DECODER
to
on Power Up
A
STATIC RAM
1
COLUMN I/O
256 x 256
EEPROM
ARRAY
A
2
EEPROM
EEPROM
EEPROM ARRAY
A
from
10
256 x 256
A
on Power Down
11
EEPROM
STORE
RECALL
EEPROM
STORE
MIL-STD-883 / SMD # 5962-94599
to
CONTROL
A
RECALL
STORE/
0
4-53
A
12
DESCRIPTION
The Simtek STK12C68-M is a fast static RAM (40, 45
and 55ns), with a nonvolatile EEPROM element incor-
porated in each static memory cell. The SRAM can be
read and written an unlimited number of times, while
independent nonvolatile data resides in EEPROM.
Data transfers from the SRAM to the EEPROM (the
STORE operation) take place automatically upon power
down using charge stored in an external 100
capacitor. Transfers from the EEPROM to the SRAM
(the RECALL operation) take place automatically on
power up. Software sequences may also be used to
initiate both STORE and RECALL operations.
STORE can also be initiated via a single pin.
The STK12C68-M is available in the following pack-
ages: a 28-pin 300 mil ceramic DIP and 28-pad LCC.
Nonvolatile Static RAM
HSB
W
G
E
DQ
DQ
A
A
A
A
A
A
A
8K x 8 AutoStore™
6
5
4
3
2
1
0
0
1
PIN CONFIGURATIONS
10
11
12
4
5
6
7
8
9
13
3
STK12C68-M
TOP VIEW
28 - LCC
14
2
15
1
A
W
DQ
E
G
V
V
V
HSB
CMOS nvSRAM
0
CCX
SS
CAP
28 27
16
- A
0
17
- DQ
26
25
24
23
22
21
20
19
18
12
PIN NAMES
HSB
A
A
A
G
A
E
DQ
DQ
7
11
8
9
10
7
6
Address Inputs
Write Enable
Data In/Out
Chip Enable
Output Enable
Power (+5V)
Ground
Capacitor
Hardware Store/Busy
DQ
DQ
DQ
V
V
CAP
A
A
A
A
A
A
A
A
A
SS
12
28 - 300 C-DIP
7
6
5
4
3
2
1
0
0
1
2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
STK12C68-M
28
27
26
25
24
23
22
21
20
19
18
17
16
15
V
W
HSB
A
A
A
G
A
E
DQ
DQ
DQ
DQ
DQ
CCX
11
8
9
10
7
6
5
4
3
A
F

Related parts for 5962-9459902MYA

5962-9459902MYA Summary of contents

Page 1

... AutoStore™ Nonvolatile Static RAM MIL-STD-883 / SMD # 5962-94599 DESCRIPTION The Simtek STK12C68 fast static RAM (40, 45 and 55ns), with a nonvolatile EEPROM element incor- porated in each static memory cell. The SRAM can be on Power Down read and written an unlimited number of times, while to independent nonvolatile data resides in EEPROM ...

Page 2

STK12C68-M ABSOLUTE MAXIMUM RATINGS Voltage on typical input relative –0.6V to 7.0V SS Voltage on DQ and ...

Page 3

SRAM MEMORY OPERATION READ CYCLES #1 & #2 SYMBOLS NO. #1, #2 Alt Chip Enable Access Time ELQV ACS Read Cycle Time AVAV Address Access Time AVQV AA 4 ...

Page 4

STK12C68-M WRITE CYCLES #1 & #2 SYMBOLS NO. PARAMETER #1 #2 Alt Write Cycle Time AVAV AVAV Write Pulse Width WLWH WLEH Chip Enable to End ...

Page 5

NONVOLATILE MEMORY OPERATION MODE SELECTION E W HSB Note k: The six consecutive addresses must be in order listed - ...

Page 6

STK12C68-M SOFTWARE STORE/RECALL CYCLE SYMBOLS NO. PARAMETER Std. Alt STORE/RECALL Initiation Cycle Time AVAV Chip Enable to Output Inactive ELQZ Address Set-up to Chip Enable AVELN AE q ...

Page 7

The STK12C68-M has two separate modes of opera- tion: mode and nonvolatile mode. In SRAM mode, the memory operates as a standard fast static . In nonvolatile mode, data is transferred from RAM to (the operation) or from STORE SRAM ...

Page 8

STK12C68-M cells. The nonvolatile data can be recalled an EEPROM unlimited number of times. AUTOMATIC RECALL During power up, or after any low power condition (V < when V exceeds the sense CAP SWITCH CAP voltage of V ...

Page 9

WRITE cycle. Note that if HSB is driven low via external STORE circuitry and no s have taken place, the part will WRITE still be disabled until HSB is allowed to return ...

Page 10

... STK12C68-M STK12C68 - 5962-94599 ORDERING INFORMATION Temperature Range M = Military (-55 to 125 degrees C) Access Time 40 = 40ns 45 = 45ns 55 = 55ns Package C = Ceramic 28 pin 300-mil DIP with gold lead finish K = Ceramic 28 pin 300-mil DIP with solder DIP finish L = Ceramic 28 pin LCC Retention / Endurance 10 years / 100,000 cycles ...

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