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參數資料
| 型號： | DS1312 |
| 英文描述： | Nonvolatile Controller with Lithium Battery Monitor |
| 中文描述： | 非易失控制器，帶有鋰電池監視器 |
| 文件頁數： | 1/11頁 |
| 文件大小： | 202K |
| 代理商： | DS1312 |
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FEATURES
Converts CMOS SRAM into nonvolatile
memory
Unconditionally write-protects SRAM when
V
CC
is out of tolerance
Automatically switches to battery backup
supply when V
CC
power failure occurs
Monitors voltage of a lithium cell and
provides advanced warning of impending
battery failure
Signals low-battery condition on active low
Battery Warning output signal
Optional -5% or -10% power-fail detection
Space-saving 8-pin DIP and SOIC packages
Optional 16-pin SOIC and 20-pin TSSOP
versions reset processor when power failure
occurs and hold processor in reset during
system power-up
Industrial temperature range of -40°C to
+85°C
PIN ASSIGNMENT
PIN DESCRIPTION
V
CCI
V
CCO
V
BAT
CEI
- +5V Power Supply Input
- SRAM Power Supply Output
- Backup Battery Input
- Chip Enable Input
- Chip Enable Output
- V
CC
Tolerance Select
- Battery Warning Output
(Open Drain)
- Reset Output (Open Drain)
- Ground
- No Connection
CEO
TOL
BW
RST
GND
NC
DESCRIPTION
The DS1312 Nonvolatile Controller with Battery Monitor is a CMOS circuit which solves the application
problem of converting CMOS RAM into nonvolatile memory. Incoming power is monitored for an out-
of-tolerance condition. When such a condition is detected, chip enable is inhibited to accomplish write
protection and the battery is switched on to supply the RAM with uninterrupted power. Special circuitry
uses a low-leakage CMOS process which affords precise voltage detection at extremely low battery
consumption.
DS1312
Nonvolatile Controller with Lithium
Battery Monitor
www.dalsemi.com
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2
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5
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8
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20
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16
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15
NC
V
CCI
RST
NC
NC
BW
NC
CEO
NC
CEI
NC
V
CCO
NC
V
BAT
NC
NC
TOL
NC
NC
GND
DS1312E 20-Pin TSSOP
1
2
3
4
8
7
6
5
GND
TOL
V
BAT
V
CCO
V
CCI
BW
CEO
CEI
DS1312S-2 8-Pin SOIC
(150-mil)
1
2
3
4
8
7
6
5
GND
TOL
V
BAT
V
CCO
V
CCI
BW
CEO
CEI
DS1312 8-Pin DIP
(300-mil)
1
2
3
4
5
6
7
8
16
15
14
13
12
9
10
11
NC
V
CCO
NC
V
BAT
NC
TOL
NC
GND
NC
V
CCI
RST
NC
BW
CEO
NC
CEI
DS1312S 16-Pin SOIC
(300-mil)
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|---|---|
| DS1314 | 3V Nonvolatile Controller with Lithium Battery Monitor |
| DS1315 | Phantom Time Chip |
| DS1315EN-33 | Phantom Time Chip |
| DS1315EN-5 | Phantom Time Chip |
| DS1318 | Parallel-Interface Elapsed Time Counter |
相關代理商/技術參數 |
參數描述 |
|---|---|
| DS1312_04 | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:Nonvolatile Controller with Lithium Battery Monitor |
| DS1312+ | 制造商:Maxim Integrated Products 功能描述:CONTROLLER NV-BW & RST 8 PIN DIP LEAD FREE - Rail/Tube 制造商:Maxim Integrated Products 功能描述:IC CONTROLLER NV BW & RST 8DIP 制造商:Maxim Integrated Products 功能描述:Memory Controllers DIG SEXTET POT 20L 100K TSSOP |
| DS1312E | 功能描述:IC CONTROLLER NV BW/RST 20-TSSOP RoHS:否 類別:集成電路 (IC) >> 存儲器 - 控制器 系列:- 標準包裝:45 系列:- 控制器類型:靜態 RAM（SRAM） 電源電壓:4.5 V ~ 5.5 V 工作溫度:0°C ~ 70°C 封裝/外殼:16-SOIC（0.295"，7.50mm 寬） 供應商設備封裝:16-SOIC W 包裝:管件 |
| DS1312E/T&R | 制造商:Maxim Integrated Products 功能描述:NV CONTROLLER BW & RST 20-TSSOP T&R - Tape and Reel |
| DS1312E+ | 功能描述:IC CONTROLLER NV BW/RST 20-TSSOP RoHS:是 類別:集成電路 (IC) >> 存儲器 - 控制器 系列:- 標準包裝:45 系列:- 控制器類型:靜態 RAM（SRAM） 電源電壓:4.5 V ~ 5.5 V 工作溫度:0°C ~ 70°C 封裝/外殼:16-SOIC（0.295"，7.50mm 寬） 供應商設備封裝:16-SOIC W 包裝:管件 |
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