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参数资料
| 型号： | MAX697CPE+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 13/15页 |
| 文件大小： | 0K |
| 描述： | IC SUPERVISOR MPU 16-DIP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 25 |
| 类型： | 多压监控器 |
| 监视电压数目： | 2 |
| 输出： | 推挽式，推挽式 |
| 复位： | 高有效/低有效 |
| 复位超时： | 最小为 35 ms |
| 电压 - 阀值： | 可调节/可选择 |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 通孔 |
| 封装/外壳： | 16-DIP（0.300"，7.62mm） |
| 供应商设备封装： | 16-PDIP |
| 包装： | 管件 |
Microprocessor Supervisory Circuits
Table 1. MAX696 and MAX697 Reset Pulse Width and Watchdog Timeout Selections
(Notes 1, 2)
WATCHDOG TIMEOUT PERIOD
OSC SEL
(Note 3)
Low
Low
High/Floating
High/Floating
OSC IN
External Clock Input
External Capacitor
Low
Floating
NORMAL
1024 clocks
400ms/47pF x C
100ms
1.6s
IMMEDIATELY
AFTER RESET
4096 clocks
1.6s/47pF x C
1.6s
1.6s
RESET TIMEOUT
PERIOD
512 clocks
200ms/47pF x C
50ms
50ms
Note 1: When the MAX696/MAX697 OSC SEL pin is low, OSC IN can be driven by an external clock signal, or an external capacitor
can be connected between OSC IN and GND. The nominal internal oscillator frequency is 10.24kHz. The nominal oscillator
frequency with external capacitor is f OSC (Hz) = 184,000/C OSC (pF).
Note 2: See the Electrical Characteristics table for minimum and maximum timing values.
Note 3: High for the OSC SEL pin should be connected to V OUT , not V CC (on the MAX696).
Table 2. Input and Output Status in Battery-Backup Mode
I/O
V BATT , V OUT
RESET
RESET
LOW LINE
BATT ON
WDI
WDO
PFI
PFO
CE IN
CE OUT
OSC IN
OSC SEL
V CC
STATUS
V BATT is connected to V OUT with an internal MOSFET (MAX696 only).
Logic-low.
Logic-high. The open-circuit output voltage is equal to V OUT .
Logic-low.
Logic-high (MAX696 only).
WDI is internally disconnected from its internal pullup and does not source or sink current as
long as its input voltage is between GND and V OUT . The input voltage does not affect supply
current.
Logic-high.
The power-fail comparator is turned off and the power-fail input voltage has no effect on the
power-fail output.
Logic-low.
CE IN is internally disconnected from its internal pullup and does not source or sink current
as long as its input voltage is between GND and V OUT . The input voltage does not affect
supply current (MAX696 only).
Logic-high (MAX697 only).
OSC IN is ignored.
OSC SEL is ignored.
Approximately 12μA is drawn from the V BATT input when V CC is between (V BATT + 100mV)
and (V BATT - 700mV). The supply current is 1μA maximum when V CC is less than V BATT -
700mV.
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相关代理商/技术参数 |
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| MAX697CPE+ | 功能描述:监控电路 MPU Supervisor 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 |
| MAX697CWE | 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 |
| MAX697CWE+ | 功能描述:监控电路 MPU Supervisor 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 |
| MAX697CWE+T | 功能描述:监控电路 MPU Supervisor 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 |
| MAX697CWE-T | 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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