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参数资料
| 型号： | DS1239S-5N |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/4页 |
| 文件大小： | 0K |
| 描述： | IC MICROMAN W/FRESH 5%IND 16SOIC |
| 标准包装： | 45 |
| 系列： | MicroManager |
| 类型： | 备用电池电路 |
| 监视电压数目： | 1 |
| 输出： | 开路漏极或开路集电极 |
| 复位： | 低有效 |
| 复位超时： | 最小为 25 ms |
| 电压 - 阀值： | 4.62V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 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 |
DS1239
MicroManager Chip
www.dalsemi.com
FEATURES
Provides necessary control for start up and
PIN ASSIGNMENT
shutdown of power supply from keyboard
Holds microprocessor in check during power
VBAT
VCCO
1
2
16
15
PSO
RST
VCC
transients
Halts and restarts an out-of-control
microprocessor
Monitors push button for external override
VCC
GND
PF
3
4
5
14
13
12
PBRST
CEI VBAT
VCCO
CEO
1
2
3
16
15
14
PSO
RST
PBRST
Warns microprocessor of an impending power
failure
Converts CMOS SRAM into nonvolatile
memory
PF
WC/SC
PSI
6
7
8
11
10
9
ST
NMI
IN
GND
PF
PF
WC/SC
PSI
4
5
6
7
8
13
12
11
10
9
CEI
CEO
ST
NMI
IN
Unconditionally write-protects memory when
power supply is out of tolerance
Consumes less than 100 nA of battery current
Controls external power switch for high
current applications
DS1239 16-Pin DIP (300-mil)
See Mech. Drawings Section
PIN DESCRIPTION
DS1239 16-Pin SOIC (300-mil)
See Mech. Drawings Section
Accurate 10% power supply monitoring
Optional 5% power supply monitoring
designated DS1239-5
Provides orderly shutdown in nonvolatile
microprocessor applications
Supplies necessary control for low-power
“stop mode” in battery operate hand-held
applications
Standard 16-pin DIP or space-saving 16-pin
SOIC
Optional industrial temperature range -40 ° C
to +85 ° C
V BAT
V CCO
V CC
GND
PF
PF
WC/ SC
PSI
IN
NMI
ST
CEO
CEI
PBRST
RST
PSO
- +3 Volt Battery Input
- Switched SRAM Supply Output
- +5 Volt Power Supply Input
- Ground
- Power Fail (Active High)
- Power Fail (Active Low)
- Wake-Up Control (Sleep)
- Power Supply Control Input
- Early Warning Input
- Non-Maskable Interrupt
- Strobe Input
- Chip Enable Output
- Chip Enable Input
- Pushbutton Reset Input
- Reset Output (Active low)
- Power Supply Control Outputs
DESCRIPTION
The DS1239 MicroManager provides all the necessary functions for power supply control and
monitoring, reset control, and memory backup in microprocessor-based systems. Using the DS1239, an
AC power switch is no longer required for microprocessor-based systems. A keyboard control system for
power supply start up and shutdown is provided through the use of the Power Supply Control Input and
Output. In other respects, the DS1239 is functionally identical to a DS1236 in the NMOS mode. For a
complete description of the other DS1239 features, refer to the DS1236 data sheet. Pin-out of the
1 of 4
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PDF描述 |
|---|---|
| DS1236S-5N | IC MICROMANAGER 5% IND 16-SOIC |
| DS1238S-10 | IC MICROMAN W/FRESH 10% 16-SOIC |
| DS1238AS-10 | IC MICROMANAGER 10% 16-SOIC |
| RSC30DRTI-S13 | CONN EDGECARD 60POS .100 EXTEND |
| MAX6303CUA | IC CIRCUIT SUPERVISORY LP 8-UMAX |
相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1239S-5N+ | 功能描述:监控电路 RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| DS1239SN | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Power Supply Supervisor |
| DS1239SN-5 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Power Supply Supervisor |
| DS123LPSN-2+ | 制造商:Maxim Integrated Products 功能描述: |
| DS1241 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Peripheral IC |
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