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參數資料
| 型號： | DS1312 |
| 廠商： | DALLAS SEMICONDUCTOR |
| 元件分類： | 電源管理 |
| 英文描述： | Nonvolatile Controller with Lithium Battery Monitor(帶鋰電池監控的非易失性控制器) |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDIP8 |
| 封裝： | 0.300 INCH, DIP-8 |
| 文件頁數： | 1/10頁 |
| 文件大小： | 79K |
| 代理商： | DS1312 |
DS1312
Nonvolatile Controller with Lithium
Battery Monitor
DS1312
022598 1/10
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
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 unin-
terrupted power. Special circuitry uses a low–leakage
CMOS process which affords precise voltage detection
at extremely low battery consumption.
PIN ASSIGNMENT
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
NC
V
CCI
RST
NC
BW
CEO
NC
CEI
NC
V
CCO
NC
V
BAT
NC
TOL
NC
GND
DS1312S 16–PIN SOIC
(300 MIL)
NC
V
CCI
RST
NC
NC
BW
NC
CEO
NC
CEI
NC
V
CCO
NC
V
BAT
NC
NC
TOL
NC
NC
GND
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
DS1312E 20–PIN TSSOP
DS1312 8–PIN DIP
(300 MIL)
V
CCI
BW
CEO
CEI
V
CCO
V
BAT
TOL
GND
1
2
3
4
8
7
6
5
1
2
3
4
8
7
6
5
V
CCI
BW
CEO
CEI
V
CCO
V
BAT
TOL
GND
DS1312S–2 8–PIN SOIC
(150 MIL)
PIN DESCRIPTION
V
CCI
– +5V Power Supply Input
V
CCO
– SRAM Power Supply Output
V
BAT
– Backup Battery Input
CEI
– Chip Enable Input
CEO
– Chip Enable Output
TOL
– V
CC
Tolerance Select
BW
– Battery Warning Output (Open Drain)
RST
– Reset Output (Open Drain)
GND
– Ground
NC
– No Connection
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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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