Overview
The STM704TM6E is a Power Management Integrated Circuit (PMIC) supervisor IC manufactured by STMicroelectronics. This component is designed to monitor and manage power supply conditions, ensuring reliable operation of electronic systems. Although the STM704TM6E is currently obsolete and no longer manufactured, it remains relevant for existing designs and maintenance of older systems.
Key Specifications
| Parameter | Value |
|---|---|
| Supply Voltage - Max | 5.5 V |
| Minimum Operating Temperature | -40 °C |
| Maximum Operating Temperature | 85 °C |
| Battery Backup Switching | Yes |
| Reset Delay Time | 200 ms (typ) |
| Low Battery Supply Current | 0.4 µA (typ) |
| Low Supply Current | 40 µA (typ) |
| Power-fail Comparator | Yes |
| Manual Reset Input | Yes |
Key Features
- RST or RST Outputs: Provides both active-low and active-high reset outputs.
- NVRAM Supervisor for External LPSRAM: Monitors and manages non-volatile RAM with external low-power static RAM.
- Automatic Battery Switchover: Automatically switches to a backup battery when the main power supply fails.
- Manual (Push-button) Reset Input: Allows for manual system reset via a push-button input.
- Power-fail Comparator (PFI/PFO): Detects power failures and provides corresponding output signals.
- Low Supply Current: Operates with a low supply current of 40 µA (typical).
Applications
The STM704TM6E is suitable for various applications requiring robust power management and supervision, including:
- Industrial Control Systems: Ensures reliable operation in industrial environments with varying power conditions.
- Embedded Systems: Ideal for embedded systems that require battery backup and power fail detection.
- Automotive Systems: Can be used in automotive applications where power supply reliability is critical.
- Medical Devices: Suitable for medical devices that require continuous operation and reliable power management.
Q & A
- What is the maximum supply voltage for the STM704TM6E?
The maximum supply voltage for the STM704TM6E is 5.5 V.
- What is the operating temperature range for the STM704TM6E?
The operating temperature range is from -40 °C to 85 °C.
- Does the STM704TM6E support battery backup switching?
Yes, the STM704TM6E supports automatic battery backup switching.
- What is the typical reset delay time for the STM704TM6E?
The typical reset delay time is 200 ms.
- Does the STM704TM6E have a manual reset input?
Yes, the STM704TM6E has a manual reset input.
- What is the low battery supply current for the STM704TM6E?
The low battery supply current is 0.4 µA (typical).
- Is the STM704TM6E RoHS compliant?
Yes, the STM704TM6E is RoHS compliant.
- What types of reset outputs does the STM704TM6E provide?
The STM704TM6E provides both active-low and active-high reset outputs.
- Can the STM704TM6E be used in automotive applications?
Yes, the STM704TM6E can be used in automotive applications due to its robust power management features.
- Is the STM704TM6E still in production?
No, the STM704TM6E is obsolete and no longer manufactured.
