Overview
The ADM1232ANZ, produced by Analog Devices Inc., is a microprocessor supervisory circuit designed to monitor microprocessor supply voltage and detect various fault conditions. It is pin-compatible with the MAX1232, DS1232LP, and DS1232, making it a versatile option for a wide range of applications. This component ensures system reliability by providing precision voltage monitoring, a watchdog timer, and manual reset capabilities.
Key Specifications
| Parameter | Rating/Value |
|---|---|
| VCC | 5.5 V (Absolute Maximum) |
| Logic Inputs | −0.3 V to VCC + 0.3 V |
| Storage Temperature Range | −65°C to +150°C |
| Lead Temperature (Soldering, 10 sec) | 300°C |
| Operating Temperature Range | −40°C to +85°C |
| Voltage Tolerance | 5% or 10% options |
| STROBE Pulse Width | 20 ns (minimum) |
| STROBE Timeout Period | 62.5 ms, 150 ms, 250 ms (depending on TD pin state) |
| Reset Active Time | 250 ms, 610 ms, 1000 ms |
| Package Type | 8-Lead Narrow Body SOIC |
Key Features
- Precision 5 V voltage monitor with 5% or 10% tolerance options
- Adjustable STROBE monitor with 150 ms, 600 ms, or 1.2 sec options
- Fast (20 ns) STROBE pulse width detection
- No external components required
- Watchdog timer for detecting microprocessor lock-up or external interrupt
- Manual reset capability
- Pin-compatible with MAX1232, DS1232LP, and DS1232
Applications
- Microprocessor systems
- Portable equipment
- Computers
- Controllers
- Intelligent instruments
- Automotive systems
- Protection against damage caused by microprocessor failure
Q & A
- What is the primary function of the ADM1232ANZ?
The primary function of the ADM1232ANZ is to monitor microprocessor supply voltage and detect fault conditions such as voltage drops or microprocessor lock-up. - What are the voltage tolerance options for the ADM1232ANZ?
The ADM1232ANZ offers 5% or 10% voltage tolerance options. - What is the minimum STROBE pulse width that the ADM1232ANZ can detect?
The ADM1232ANZ can detect STROBE pulse widths as narrow as 20 ns. - What is the operating temperature range of the ADM1232ANZ?
The operating temperature range of the ADM1232ANZ is −40°C to +85°C. - Is the ADM1232ANZ pin-compatible with other supervisory circuits?
Yes, the ADM1232ANZ is pin-compatible with the MAX1232, DS1232LP, and DS1232. - What types of applications can the ADM1232ANZ be used in?
The ADM1232ANZ can be used in microprocessor systems, portable equipment, computers, controllers, intelligent instruments, and automotive systems. - Does the ADM1232ANZ require external components for operation?
No, the ADM1232ANZ does not require external components for operation. - What is the purpose of the watchdog timer in the ADM1232ANZ?
The watchdog timer is used to detect if a microprocessor has locked up or if an external interrupt has been issued. - What is the package type of the ADM1232ANZ?
The ADM1232ANZ is packaged in an 8-Lead Narrow Body SOIC. - What is the reset active time range for the ADM1232ANZ?
The reset active time range for the ADM1232ANZ is 250 ms, 610 ms, or 1000 ms.
