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参数资料
| 型号： | DS1238 |
| 厂商： | DALLAS SEMICONDUCTOR |
| 元件分类： | 电源管理 |
| 英文描述： | MicroManager(微管理器芯片) |
| 中文描述： | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDIP16 |
| 封装： | 0.300 INCH, DIP-16 |
| 文件页数： | 13/13页 |
| 文件大小： | 167K |
| 代理商： | DS1238 |
DS1238
022698 13/13
NOTES:
1. All voltages referenced to ground.
2. Measured with V
CCO
, CEO, PF, ST, RST, RST, and NMI pin open.
3. I
CCO1
is the maximum average load which the DS1238 can supply at V
CC
-.3V through the V
CCO
pin during
normal 5-volt operation.
4. I
CCO2
is the maximum average load which the DS1238 can supply through the V
CCO
pin during data retention
battery supply operation, with a maximum drop of 0.8 volts for commercial, 1.0V for industrial.
5. With t
R
= 5
μ
s.
6. V
CCO
is approximately V
BAT
-0.5V at 1
μ
A load.
7. t
REC
is the minimum time required before CEI/CEO memory access is allowed.
8. t
CE
maximum must be met to insure data integrity on power loss.
9. All outputs except RST which is 25
μ
A max.
10.All outputs except RST, RVT, and NMI which is 25
μ
A min.
11. The ST pin will sink +50
μ
A in normal operation. The OSCIN pin will sink +5
μ
A in normal operation. The
OSCSEL pin will sink +10
μ
A in normal operation.
12.I
BAT
is measured with V
BAT
=3.0V.
13.ST should be active low before the watchdog is disabled (i.e., before the ST input is tristated).
TRI
+5V
ST
OUTPUT
3.3 K
2.2 K
相关PDF资料 |
PDF描述 |
|---|---|
| DS1239 | MicroManager Chip(微管理器芯片) |
| DS1250AB | 4096K Nonvolatile SRAM(4096K 非易失性静态RAM) |
| DS1250Y | 4096K Nonvolatile SRAM(4096K 非易失性静态RAM) |
| DS1250W | 3.3V 4096K Nonvolatile SRAM(3.3V 4096K 非易失性静态RAM) |
| DS1251Y | 4096K NV SRAM with Phantom Clock(带幻影时钟的4096K NV 静态RAM) |
相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1238-10 | 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 |
| DS1238-10+ | 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 |
| DS1238-10N | 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 |
| DS1238-10N+ | 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 |
| DS1238-5 | 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 |
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