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参数资料
| 型号： | DS1211S/T&R |
| 厂商： | Maxim Integrated |
| 文件页数： | 1/1页 |
| 文件大小： | 0K |
| 描述： | IC CONTROLLER 8-CHIP NV 20-SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 产品变化通告： | DS1211 Series Discontinuation 21/Aug/2012 |
| 标准包装： | 1,000 |
| 控制器类型： | 非易失性 RAM |
| 电源电压： | 4.75 V ~ 5.5 V |
| 工作温度： | 0°C ~ 70°C |
| 封装/外壳： | 20-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 20-SOIC W |
| 包装： | 带卷 (TR) |
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VCCI
VBAT2
VBAT1
VCCO
TOL
PF
CE7
CE6
C
B
A
GND
CE
CE0
CE1
CE2
CE3
NC
CE4
CE5
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
VBAT1
VCCO
TOL
PF
CE7
CE6
C
B
A
GND
VCCI
VBAT2
CE
CE0
CE1
CE2
CE3
NC
CE4
CE5
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
20-Pin DIP (300-mil)
See Mech. Drawings
Section
20-Pin SOIC (300-mil)
See Mech. Drawings
Section
FEATURES
Converts full CMOS RAMs into nonvolatile
memories
Unconditionally write protects when VCC is
out of tolerance
Automatically switches to battery when
power-fail occurs
3 to 8 decoder provides control for up to eight
CMOS RAMs
Consumes less than 100 nA of battery current
Tests battery condition on power-up
Provides for redundant batteries
Power-fail signal can be used to interrupt
processor on power failure
Optional 5% or 10% power-fail detection
Optional 20-pin SOIC surface mount package
Optional industrial temperature range of
-40°C to +85°C
PIN ASSIGNMENT
PIN DESCRIPTION
A, B, C
- Address Inputs
CE
- Chip Enable Input
CE0
- CE7
- Chip Enable Outputs
GND
- Ground
VBAT1
- + Battery 1
VBAT2
- + Battery 2
TOL
- Power Supply Tolerance
VCCI
- +5V Supply
VCC0
- RAM Supply
PF
- Power-fail
NC
- No Connection
DESCRIPTION
The DS1211 Nonvolatile Controller x 8 Chip is a CMOS circuit which solves the application problem of
converting CMOS RAMs into nonvolatile memories. Incoming power is monitored for an out-of-
tolerance condition. When such a condition is detected, the chip enables are inhibited to accomplish write
protection and the battery is switched on to supply RAMs with uninterrupted power. Special circuitry
uses a low-leakage CMOS process which affords precise voltage detection at extremely low battery
consumption.
By combining the DS1211 nonvolatile controller/decoder chip and lithium batteries, nonvolatile RAM
operation can be achieved for up to eight CMOS memories.
See the data sheet for the DS1212 Nonvolatile Controller x 16 Chip for electrical specifications and
operation.
DS1211
Nonvolatile Controller x 8 Chip
www.dalsemi.com
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1212 | 功能描述:IC CONTROLLER NV 16-CHIP 28-DIP RoHS:否 类别:集成电路 (IC) >> 存储器 - 控制器 系列:- 标准包装:45 系列:- 控制器类型:静态 RAM（SRAM） 电源电压:4.5 V ~ 5.5 V 工作温度:0°C ~ 70°C 封装/外壳:16-SOIC（0.295"，7.50mm 宽） 供应商设备封装:16-SOIC W 包装:管件 |
| DS1212+ | 功能描述:IC CONTROLLER NV 16-CHIP 28-DIP RoHS:是 类别:集成电路 (IC) >> 存储器 - 控制器 系列:- 标准包装:45 系列:- 控制器类型:静态 RAM（SRAM） 电源电压:4.5 V ~ 5.5 V 工作温度:0°C ~ 70°C 封装/外壳:16-SOIC（0.295"，7.50mm 宽） 供应商设备封装:16-SOIC W 包装:管件 |
| DS1212N | 功能描述:IC CONTROLLER NV 16-CHIP 28-DIP RoHS:否 类别:集成电路 (IC) >> 存储器 - 控制器 系列:- 标准包装:45 系列:- 控制器类型:静态 RAM（SRAM） 电源电压:4.5 V ~ 5.5 V 工作温度:0°C ~ 70°C 封装/外壳:16-SOIC（0.295"，7.50mm 宽） 供应商设备封装:16-SOIC W 包装:管件 |
| DS1212-N | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Nonvolatile Controller |
| DS1212Q | 功能描述:IC CONTROLLER NV 16-CHIP 28-PLCC RoHS:否 类别:集成电路 (IC) >> 存储器 - 控制器 系列:- 标准包装:45 系列:- 控制器类型:静态 RAM（SRAM） 电源电压:4.5 V ~ 5.5 V 工作温度:0°C ~ 70°C 封装/外壳:16-SOIC（0.295"，7.50mm 宽） 供应商设备封装:16-SOIC W 包装:管件 |
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