STK12C68-5K55M datasheet, PDF - EEWORLD Datasheet

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STK12C68-5K55M: DescriptionNon-Volatile SRAM, 8KX8, 35ns, CMOS, CDIP28, 0.300 INCH, CERAMIC, DIP-28; Categorystorage storage; File Size252KB，13 Pages; ManufacturerSimtek; Websitehttp://www.simtek.com

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STK12C68-5K55M Overview

Non-Volatile SRAM, 8KX8, 35ns, CMOS, CDIP28, 0.300 INCH, CERAMIC, DIP-28

STK12C68-5K55M Parametric

Parameter Name	Attribute value
Is it Rohs certified?	incompatible
Maker	Simtek
package instruction	WDIP, DIP28,.3
Reach Compliance Code	unknown
ECCN code	3A001.A.2.C
Maximum access time	35 ns
Other features	RETENTION/ENDURANCE = 10 YEARS/100000 CYCLES
JESD-30 code	R-CDIP-T28
JESD-609 code	e0
length	35.56 mm
memory density	65536 bit
Memory IC Type	NON-VOLATILE SRAM
memory width	8
Number of functions	1
Number of ports	1
Number of terminals	28
word count	8192 words
character code	8000
Operating mode	ASYNCHRONOUS
Maximum operating temperature	125 °C
Minimum operating temperature	-55 °C
organize	8KX8
Output characteristics	3-STATE
Exportable	YES
Package body material	CERAMIC, METAL-SEALED COFIRED
encapsulated code	WDIP
Encapsulate equivalent code	DIP28,.3
Package shape	RECTANGULAR
Package form	IN-LINE, WINDOW
Parallel/Serial	PARALLEL
power supply	5 V
Certification status	Not Qualified
Maximum seat height	4.14 mm
Maximum standby current	0.004 A
Maximum slew rate	0.075 mA
Maximum supply voltage (Vsup)	5.5 V
Minimum supply voltage (Vsup)	4.5 V
Nominal supply voltage (Vsup)	5 V
surface mount	NO
technology	CMOS
Temperature level	MILITARY
Terminal surface	Tin/Lead (Sn85Pb15)
Terminal form	THROUGH-HOLE
Terminal pitch	2.54 mm
Terminal location	DUAL
width	7.62 mm

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STK12C68

STK12C68-M SMD#5962-94599

8K x 8

AutoStore™

nvSRAM

QuantumTrap™

CMOS

Nonvolatile Static RAM

FEATURES

• 25ns, 35ns, 45ns and 55ns Access Times

• “Hands-off” Automatic

STORE

with External

68µF Capacitor on Power Down

•

STORE

to Nonvolatile Elements Initiated by

Hardware, Software or

AutoStore™

on Power

Down

•

RECALL

to SRAM Initiated by Software or

Power Restore

• 10mA Typical I

at 200ns Cycle Time

• Unlimited READ, WRITE and

RECALL

Cycles

• 1,000,000

STORE

Cycles to Nonvolatile Ele-

ments (Commercial/Industrial)

• 100-Year Data Retention in Nonvolatile Ele-

ments (Commercial/Industrial)

• Commercial, Industrial and Military Tempera-

tures

• 28-Pin SOIC, DIP and LCC Packages

DESCRIPTION

The Simtek STK12C68 is a fast static

RAM

with a

nonvolatile element incorporated in each static

memory cell. The

SRAM

can be read and written an

unlimited number of times, while independent, non-

volatile data resides in Nonvolatile Elements. Data

transfers from the

SRAM

to the Nonvolatile Elements

(the

STORE

operation) can take place automatically

on power down. A 68µF or larger capacitor tied from

CAP

to ground guarantees the

STORE

operation,

regardless of power-down slew rate or loss of power

from “hot swapping”. Transfers from the Nonvolatile

Elements to the

SRAM

(the

RECALL

operation) take

place automatically on restoration of power. Initia-

tion of

STORE

and

RECALL

cycles can also be soft-

ware controlled by entering specific read

sequences. A hardware

STORE

may be initiated with

the HSB pin.

BLOCK DIAGRAM

CCX

CAP

POWER

CONTROL

PIN CONFIGURATIONS

CAP

QUANTUM TRAP

128 x 512

ROW DECODER

STORE

STATIC RAM

ARRAY

128 x 512

RECALL

STORE/

RECALL

CONTROL

HSB

CCX

HSB

28 - LCC

SOFTWARE

DETECT

- A

28 - DIP

28 - SOIC

INPUT BUFFERS

COLUMN I/O

COLUMN DEC

PIN NAMES

- A

-DQ

Address Inputs

Data In/Out

Chip Enable

Write Enable

Output Enable

Hardware Store Busy (I/O)

Power (+ 5V)

Capacitor

Ground

HSB

CCX

CAP

October 2003

Document Control # ML0008 rev 0.4

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Shortcut: 00 01 02 03 04 05 06 07 08 09 0A 0C 0F 0J 0L 0M 0R 0S 0T 0Z 10 11 12 13 14 15 16 17 18 19 1A 1B 1C 1D 1E 1F 1H 1K 1M 1N 1P 1S 1T 1V 1X 1Z 20 21 22 23 24 25 26 27 28 29 2A 2B 2C 2D 2E 2F 2G 2K 2M 2N 2P 2Q 2R 2S 2T 2W 2Z 30 31 32 33 34 35 36 37 38 39 3A 3B 3C 3D 3E 3F 3G 3H 3J 3K 3L 3M 3N 3P 3R 3S 3T 3V 40 41 42 43 44 45 46 47 48 49 4A 4B 4C 4D 4M 4N 4P 4S 4T 50 51 52 53 54 55 56 57 58 59 5A 5B 5C 5E 5G 5H 5K 5M 5N 5P 5S 5T 5V 60 61 62 63 64 65 66 67 68 69 6A 6C 6E 6F 6M 6N 6P 6R 6S 6T 70 71 72 73 74 75 76 77 78 79 7A 7B 7C 7M 7N 7P 7Q 7V 7W 7X 80 81 82 83 84 85 86 87 88 89 8A 8D 8E 8L 8N 8P 8S 8T 8W 8Y 8Z 90 91 92 93 94 95 96 97 98 99 9A 9B 9C 9D 9F 9G 9H 9L 9S 9T 9W

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