- 您现在的位置：买卖IC网 > PDF目录381717 > DS1236 (DALLAS SEMICONDUCTOR) MicroManager Chip(微管理器芯片) PDF资料下载
参数资料
| 型号： | DS1236 |
| 厂商： | DALLAS SEMICONDUCTOR |
| 元件分类： | 电源管理 |
| 英文描述： | MicroManager Chip(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： | 1/19页 |
| 文件大小： | 210K |
| 代理商： | DS1236 |
DS1236
MicroManager Chip
DS1236
022698 1/19
FEATURES
Holds microprocessor in check during power
transients
Halts and restarts an out-of-control microprocessor
Monitors pushbutton for external override
Warns microprocessor of an impending power failure
Converts CMOS SRAM into nonvolatile memory
Unconditionally write protects memory when power
supply is out of tolerance
Consumes less than 100 nA of battery current at 25
°
C
Controls external power switch for high current
applications
Accurate 10% power supply monitoring
Optional 5% power supply monitoring designated
DS1236-5
Provides
orderly
shutdown
microprocessor applications
Supplies necessary control for low-power “stop
mode” in battery operated hand-held applications
Standard 16-pin DIP or space-saving 16-pin SOIC
Optional industrial temperature range -40
°
C to +85
°
C
in
nonvolatile
PIN ASSIGNMENT
IN
VBAT
VCCO
VCC
GND
PF
RC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
RST
RST
PBRST
CEI
CEO
ST
NMI
PF
WC/SC
16-Pin DIP (300 Mil.)
See Mech. Drawings
Section
1
11
10
12
13
14
2
3
4
5
6
7
8
9
15
16
VBAT
VCCO
VCC
GND
PF
PF
WC/SC
RC
RST
RST
PBRST
CEI
CEO
ST
NMI
IN
16-Pin SOIC (300 Mil.)
See Mech. Drawings
Section
PIN DESCRIPTION
V
BAT
V
CCO
V
CC
GND
PF
PF
WC/SC
RC
IN
NMI
ST
CEO
CEI
PBRST
RST
RST
– +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)
– Reset Control
– Early Warning Input
– Non-Maskable Interrupt
– Strobe Input
– Chip Enable Output
– Chip Enable Input
– Pushbutton Reset Input
– Reset Output (Active Low)
– Reset Output (Active High)
DESCRIPTION
The DS1236 MicroManager Chip provides all the nec-
essary functions for power supply monitoring, reset
control, and memory backup in microprocessor-based
systems. A precise internal voltage reference and com-
parator circuit monitor power supply status. When an
out-of-tolerance condition occurs, the microprocessor
reset and power fail outputs are forced active, and static
RAM control unconditionally write protects external
memory. The DS1236 also provides early warning de-
tection of a user-defined threshold by driving a
non-maskable interrupt. External reset control is pro-
vided by a pushbutton reset input which is debounced
and activates reset outputs. An internal watchdog timer
can also force the reset outputs to the active state if the
strobe input is not driven low prior to watchdog time-out.
Reset control and wake-up/sleep control inputs also
provide the necessary signals for orderly shutdown and
start-up in battery backup and battery operated applica-
tions. A block diagram of the DS1236 is shown in
Figure 1.
相关PDF资料 |
PDF描述 |
|---|---|
| DS1238A | MicroManager(微管理器芯片) |
| DS1238 | MicroManager(微管理器芯片) |
| 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) |
相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1236+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 |
| DS1236-10 | 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 |
| DS1236-10+ | 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 |
| DS1236-10N | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Power Supply Supervisor |
| DS1236-5 | 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 |
发布紧急采购，3分钟左右您将得到回复。