參數(shù)資料
型號: DS1321
廠商: Maxim Integrated
文件頁數(shù): 1/13頁
文件大?。?/td> 0K
描述: IC CTRLR NV W/BATT MON 5V 16-DIP
產(chǎn)品培訓模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝: 25
控制器類型: 非易失性 RAM
電源電壓: 4.75 V ~ 5.5 V
工作溫度: -40°C ~ 85°C
封裝/外殼: 16-DIP(0.300",7.62mm)
供應商設備封裝: 16-PDIP
包裝: 管件
1 of 13
FEATURES
Converts CMOS SRAM into nonvolatile
memory
Unconditionally write-protects SRAM when
VCC is out of tolerance
Automatically switches to battery backup
supply when VCC 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 PDIP, 16-pin SO and 20-pin TSSOP
packages
Industrial temperature range of -40°C to
+85°C
PIN DESCRIPTION
VCCI
- +5V Power Supply Input
VCCO
- SRAM Power Supply Output
VBAT
- Backup Battery Input
A, B
- Address Inputs
CEI1
- CEI4 - Chip Enable Inputs
CEO1
- CEO4 - Chip Enable Outputs
TOL
- VCC Tolerance Select
BW
- Battery Warning Output (Open
Drain)
RST
- Reset Output (Open Drain)
MODE
- Mode Input
GND
- Ground
NC
- No Connection
PIN ASSIGNMENT
DS1321
Flexible Nonvolatile Controller with
Lithium Battery Monitor
1
2
3
4
20
19
18
17
5
6
7
8
9
10
11
12
13
14
15
16
NC
DS1321E 20-Pin TSSOP
VCCI
RST
BW
CEO1
CEO2
NC
CEO3
CEO4
NC
MODE
VCCO
VBAT
TOL
CEI1
CEI2
NC
A/CEI3
B/CEI4
GND
1
2
3
4
16
15
14
13
5
6
7
8
9
10
11
12
VCCI
RST
BW
CEO1
CEO2
CEO3
CEO4
MODE
VCCO
VBAT
TOL
CEI1
CEI2
A/CEI3
B/CEI4
GND
DS1321 16-Pin PDIP
(300 mils)
1
2
3
4
16
15
14
13
5
6
7
8
9
10
11
12
VCCI
RST
BW
CEO1
CEO2
CEO3
CEO4
MODE
VCCO
VBAT
TOL
CEI1
CEI2
A/CEI3
B/CEI4
GND
DS1321S 16-Pin SO
(150 mils)
19-6312; Rev 6/12
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相關代理商/技術參數(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:- 標準包裝: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) 供應商設備封裝: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:- 標準包裝: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) 供應商設備封裝:16-SOIC W 包裝:管件