仕様
| 属性 | 値 |
| Package | Bulk |
| ProductStatus | Active |
概要
Description
MAX708ESA is a microprocessor supervisory circuit from Maxim Integrated. It functions as a reset generator and watchdog for a microcontroller or MCU system.
Key features (typical):
- Power-on reset (POR) to guarantee a clean MCU start as Vcc rises
- Undervoltage detection to reset when supply falls outside limits
- Watchdog timer input (WDI) to detect a software hang
- Manual reset input (MR) for external pushing or gating
- Active-low reset output (RESET) to hold the MCU in reset
How it works:
- Connect Vcc, GND, RESET output to the MCU reset line, WDI to a timer/heartbeat from software, and MR to a reset button or logic
- If Vcc is too low, or the watchdog times out, or MR is asserted, RESET goes active to reset the MCU
Typical use:
- Embedded systems requiring reliable startup and fault recovery, especially where software reliability is critical
ES A suffix note:
- ESA indicates a specific package/temperature grade variant; check the exact datasheet for packaging and electrical specs.
Key features (typical):
- Power-on reset (POR) to guarantee a clean MCU start as Vcc rises
- Undervoltage detection to reset when supply falls outside limits
- Watchdog timer input (WDI) to detect a software hang
- Manual reset input (MR) for external pushing or gating
- Active-low reset output (RESET) to hold the MCU in reset
How it works:
- Connect Vcc, GND, RESET output to the MCU reset line, WDI to a timer/heartbeat from software, and MR to a reset button or logic
- If Vcc is too low, or the watchdog times out, or MR is asserted, RESET goes active to reset the MCU
Typical use:
- Embedded systems requiring reliable startup and fault recovery, especially where software reliability is critical
ES A suffix note:
- ESA indicates a specific package/temperature grade variant; check the exact datasheet for packaging and electrical specs.
Features
I don’t have the exact MAX708ESA datasheet memorized. Here are typical MAX708-family features; please share the exact datasheet for precise specs.
- 8-bit CPU core with a simple instruction set
- On-chip ROM and RAM
- I/O ports with bit-addressable I/O
- Timers/counters and a watchdog timer
- Serial communication interface (USART/SPI/I2C-like, depending on version)
- Interrupt controller with multiple sources
- Power-management modes (idle/sleep) and wake-up logic
- On-chip oscillator or external clock input
- Peripheral addressing and simple hardware peripherals
- Broad supply range and options for low-power operation
Note: The ESA suffix often denotes a specific variant (temperature/packaging). For exact pinout, memory sizes, voltages, and timing, please provide or reference the exact datasheet.
- 8-bit CPU core with a simple instruction set
- On-chip ROM and RAM
- I/O ports with bit-addressable I/O
- Timers/counters and a watchdog timer
- Serial communication interface (USART/SPI/I2C-like, depending on version)
- Interrupt controller with multiple sources
- Power-management modes (idle/sleep) and wake-up logic
- On-chip oscillator or external clock input
- Peripheral addressing and simple hardware peripherals
- Broad supply range and options for low-power operation
Note: The ESA suffix often denotes a specific variant (temperature/packaging). For exact pinout, memory sizes, voltages, and timing, please provide or reference the exact datasheet.
Pinout
- Pin count: 8 pins (8-pin package such as SOIC/DIP).
- Function: Microprocessor supervisory/reset circuit. It monitors the supply voltage (Vcc) and generates a (typically active-low) reset signal to ensure proper MCU startup and operation, resetting the processor on power-up/power-down or during voltage dips.
- Function: Microprocessor supervisory/reset circuit. It monitors the supply voltage (Vcc) and generates a (typically active-low) reset signal to ensure proper MCU startup and operation, resetting the processor on power-up/power-down or during voltage dips.
Manufacturer
Manufacturer: Maxim Integrated (now part of Analog Devices, Inc., ADI).
What kind of company: A multinational American semiconductor company that designs and manufactures analog and mixed-signal integrated circuits; Maxim was acquired by Analog Devices in 2021.
What kind of company: A multinational American semiconductor company that designs and manufactures analog and mixed-signal integrated circuits; Maxim was acquired by Analog Devices in 2021.
Application
MAX708ESA is a voltage supervisor/reset-generator IC. Common application areas include:
- Microcontroller/microprocessor reset supervision
- Power-on and brown-out/reset for embedded systems
- Digital logic reset in consumer, industrial, and telecom equipment
- Battery-powered/portable devices requiring reliable reset during low-voltage operation
- Data acquisition, instrumentation, and control systems
- Automotive electronics requiring robust reset under supply variations
These uses leverage its ability to monitor Vcc and generate a clean reset signal to ensure proper system startup and operation.
- Microcontroller/microprocessor reset supervision
- Power-on and brown-out/reset for embedded systems
- Digital logic reset in consumer, industrial, and telecom equipment
- Battery-powered/portable devices requiring reliable reset during low-voltage operation
- Data acquisition, instrumentation, and control systems
- Automotive electronics requiring robust reset under supply variations
These uses leverage its ability to monitor Vcc and generate a clean reset signal to ensure proper system startup and operation.
Package
8-pin SO-8 (surface-mount) package.
