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参数资料
| 型号： | MAX697CPE+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 5/15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
Pin Description
MAX696
1
2
3
4
PIN
MAX697
—
—
3
5
NAME
V BATT
V OUT
V CC
GND
FUNCTION
Backup-Battery Input. Connect to ground if a backup battery is not used.
The higher of V CC or V BATT is internally switched to V OUT . Connect V OUT to V CC if
V OUT and V BATT are not used.
+5V Input
0V Ground Reference for All Signals
BATT ON goes High when V OUT is Internally Switched to the V BATT Input. It goes low
5
—
BATT ON
when V OUT is internally switched to V CC . The output typically sinks 7mA and can
directly drive the base of an external pnp transistor to increase the output current
above the 50mA rating of V OUT .
6
6
LOW LINE
LOW LINE goes Low when LL IN Falls Below 1.3V. It returns high as soon as LL IN
rises above 1.3V. See Figure 5.
OSC IN Sets the Reset Delay Timing and Watchdog Timeout Period when OSC SEL
7
7
OSC IN
Floats or is Driven Low. The timing can also be adjusted by connecting an external
capacitor to this pin. See Figure 7. When OSC SEL is high, OSC IN selects between
fast and slow watchdog timeout periods
When OSC SEL is Unconnected or Driven High, the Internal Oscillator Sets the Reset
8
8
OSC SEL
Time Delay and Watchdog Timeout Period. When OSC SEL is low, the external
oscillator input, OSC IN, is enabled. OSC SEL has a 3μA internal pullup. See Table 1.
9
10
9
10
PFI
PFO
PFI is the Noninverting Input to the Power-Fail Comparator. When PFI is less than
1.3V, PFO goes low. Connect PFI to GND or V OUT when not used. See Figure 1.
PFO is the Output of the Power-Fail Comparator. It goes low when PFI is less than
1.3V. The comparator is turned off and PFO goes low when V CC is below V BATT .
The Watchdog Input, WDI, is a Three-Level Input. If WDI remains either high or low
11
11
WDI
for longer than the watchdog timeout period, RESET pulses low and WDO goes low.
The watchdog timer is disabled when WDI is left floating or is driven to mid-supply.
The timer resets with each transition at the watchdog timer input.
12
2
N.C.
No Connection. Leave this pin open.
Low-Line Input. LL IN is the CMOS input to a comparator whose other input is a
13
4
LL IN
precision 1.3V reference. The output is LOW LINE and is also connected to the reset
pulse generator. See Figure 2.
The Watchdog Output, WDO , goes Low if WDI Remains either High or Low for
14
14
WDO
Longer than the Watchdog Timeout Period. WDO is set high by the next transition at
WDI. If WDI is unconnected or at mid-supply, WDO remains high. WDO also goes
high when LOW LINE goes low.
RESET goes Low whenever LL IN Falls Below 1.3V or V CC Falls Below the V BATT
15
15
RESET
Input Voltage. RESET remains low for 50ms after LL IN goes above 1.3V. RESET also
goes low for 50ms if the watchdog timer is enabled but not serviced within its
timeout period. The RESET pulse width can be adjusted as shown in Table 1.
16
16
RESET
RESET is an Active-High Output. It is the inverse of RESET .
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5
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 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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