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參數(shù)資料
| 型號： | DS1321 |
| 英文描述： | Flexible Nonvolatile Controller with Lithium Battery Monitor |
| 中文描述： | 靈活的非易失控制器，帶有鋰電池 |
| 文件頁數(shù)： | 1/12頁 |
| 文件大?。?/td> | 220K |
| 代理商： | DS1321 |
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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
Flexible memory organization
- Mode 0: 4 banks with 1 SRAM each
- Mode 1: 2 banks with 2 SRAMs each
- Mode 2: 1 bank with 4 SRAMs each
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
Resets processor when power failure occurs
and holds processor in reset during system
power-up
Optional -5% or -10% power-fail detection
16-pin DIP, 16-pin SOIC and 20-pin TSSOP
packages
Industrial temperature range of -40°C to
+85°C
PIN DESCRIPTION
V
CCI
V
CCO
V
BAT
A, B
CEI1
-
CEI4
CEO1
-
CEO4
- Chip Enable Outputs
TOL
- V
CC
Tolerance Select
BW
- Battery Warning Output (Open
Drain)
RST
- Reset Output (Open Drain)
MODE
- Mode Input
GND
- Ground
NC
- No Connection
- +5V Power Supply Input
- SRAM Power Supply Output
- Backup Battery Input
- Address Inputs
- Chip Enable Inputs
PIN ASSIGNMENT
DS1321
Flexible Nonvolatile Controller with
Lithium Battery Monitor
www.dalsemi.com
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
11
12
13
14
15
NC
DS1321E 20-Pin TSSOP
V
CCI
RST
BW
CEO1
CEO2
NC
CEO3
CEO4
NC
MODE
V
CCO
V
BAT
TOL
CEI1
CEI2
NC
A/CEI3
B/CEI4
GND
1
2
3
4
5
6
7
8
16
15
14
13
12
9
10
11
V
CCI
RST
BW
CEO1
CEO2
CEO3
CEO4
MODE
V
CCO
V
BAT
TOL
CEI1
CEI2
A/CEI3
B/CEI4
GND
DS1321 16-Pin DIP
(300-mil)
1
2
3
4
5
6
7
8
16
15
14
13
12
9
10
11
V
CCI
RST
BW
CEO1
CEO2
CEO3
CEO4
MODE
V
CCO
V
BAT
TOL
CEI1
CEI2
A/CEI3
B/CEI4
GND
DS1321S 16-Pin SOIC
(150-mil)
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS1321_04 | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:Flexible Nonvolatile Controller with Lithium Battery Monitor |
| DS1321+ | 功能描述:存儲器控制器 Flexible NV Cntlr w/Lithium Battery RoHS:否 制造商:Maxim Integrated |
| DS1321E | 功能描述:IC CTRL NV W/BATT MON 5V 20TSSOP RoHS:否 類別:集成電路 (IC) >> 存儲器 - 控制器 系列:- 標(biāo)準(zhǔn)包裝:45 系列:- 控制器類型:靜態(tài) 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(yīng)商設(shè)備封裝:16-SOIC W 包裝:管件 |
| DS1321E/T&R | 制造商:Maxim Integrated Products 功能描述:NV CONTRL 5V X4 BW&RST 20-TSSOP T&R - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC CTRL NV W/BATT MON 5V 20TSSOP |
| DS1321E/T&R | 功能描述:IC CTRL NV W/BATT MON 5V 20TSSOP RoHS:否 類別:集成電路 (IC) >> 存儲器 - 控制器 系列:- 標(biāo)準(zhǔn)包裝:45 系列:- 控制器類型:靜態(tài) 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(yīng)商設(shè)備封裝:16-SOIC W 包裝:管件 |
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