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DS1213C

Dallas Semiconducotr
Part Number DS1213C
Manufacturer Dallas Semiconducotr
Description SmartSocket 256k
Published Jan 4, 2006
Detailed Description DS1213C SmartSocket 256k www.dalsemi.com FEATURES Accepts standard 32K x 8 CMOS static RAMs Embedded lithium energy cel...
Datasheet PDF File DS1213C PDF File

DS1213C
DS1213C


Overview
DS1213C SmartSocket 256k www.
dalsemi.
com FEATURES Accepts standard 32K x 8 CMOS static RAMs Embedded lithium energy cell retains RAM data Self-contained circuitry safeguards data Data retention time is greater than 10 years with the proper RAM selection Proven gas-tight socket contacts Operating temperature range 0°C to 70°C PIN ASSIGNMENT 1 2 3 4 5 6 7 8 9 10 11 12 13 GND 14 28 VCC 27 26 25 24 23 22 21 20 CE 19 18 17 16 15 28-Pin Intelligent Socket PIN DESCRIPTION – Conditioned Chip Enable – Switched VCC VCC GND – Ground All pins pass through except 20 and 28.
CE DESCRIPTION The DS1213C SmartSocket is a 28-pin, 600 mil DIP socket with a built-in CMOS controller circuit and an embedded lithium energy source.
It accepts a 32K x 8 JEDEC bytewide CMOS static RAM.
When the socket is mated with a CMOS RAM, it provides a complete solution o problems associated with memory volatility.
The SmartSocket monitors incoming VCC for an out-of- tolerance condition.
When such a condition occurs, the internal lithium energy source is automatically switched on and write protection is unconditionally enabled to prevent data corruption.
Using the SmartSocket saves printed circuit board space since the SRAM/SmartSocket combination occupies no more area than the memory alone.
The SmartSocket uses only Pins 20 and 28 for RAM control.
All other pins are passed straight through.
See the DS1213B SmartSocket data sheet for technical details.
1 of 2 022900 DS1213C DS1213C INTELLIGENT SOCKET 28-PIN (FOR 600 MIL DIP) PKG DIM A IN.
MM B IN.
MM C IN.
MM D IN.
MM E IN.
MM F IN.
MM G IN.
MM H IN.
MM J IN.
MM K IN.
MM L IN.
MM 28-PIN MIN MAX 1.
380 1.
420 35.
05 36.
07 0.
690 0.
720 17.
53 18.
29 0.
420 0.
470 10.
16 11.
94 0.
035 0.
065 0.
89 1.
65 0.
055 0.
075 1.
39 1.
90 0.
120 0.
160 3.
04 4.
06 0.
090 0.
110 2.
29 2.
79 0.
590 0.
630 14.
99 16.
00 0.
008 0.
012 0.
20 0.
30 0.
015 0.
021 0.
38 0.
53 0.
380 0.
420 9.
65 10.
67 2 of 2 ...


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