STM819L/M：5V Supervisor
The STM690A/692A/703/704/802/805/817/818/819 supervisors are self-contained devices which provide microprocessor supervisory functions with the ability to non-volatize and write-protect external LPSRAM. A precision voltage reference and comparator monitors the VCCinput for an out-of-tolerance condition. When an invalid VCCcondition occurs, the reset output (RST) is forced low (or high in the case of RST). These devices also offer a watchdog timer (except for STM703/704/819) as well as a power-fail comparator (except for STM818) to provide the system with an early warning of impending power failure.
These devices are available in a standard 8-pin SOIC package or a space-saving 8-pin TSSOP package.
Key Features
- 5 V operating voltage
- NVRAM supervisor for external LPSRAM
- Chip-enable gating (STM818 only) for external LPSRAM (7 ns max prop delay)
- RST andRST
outputs
- 200 ms (typ) trec
- Watchdog timer - 1.6 sec (typ)
- Automatic battery switchover
- Low battery supply current - 0.4 μA (typ)
- Power-fail comparator (PFI/PFO
)
- Low supply current - 40 μA (typ)
- GuaranteedRST
(RST) assertion down to VCC
= 1.0 V
- Operating temperature: –40 °C to +85 °C (industrial grade)
- RoHS compliance
- Lead-free components are compliant with the RoHS directive
Product Specifications
Application Notes
Technical Notes & Articles
Flyers
Sample & Buy
| Part Number | Package | Packing Type | RST Threshold (V) (typ) | Operating Temperature (°C) (min) | Operating Temperature (°C) (max) | Unit Price (US$)
* | Quantity | ECCN (EU) | ECCN (US) | Country of Origin |
|---|
| STM819MM6F | SO-8 | Tape And Reel | 4.4 | - | - | 0.49 | 1000 | NEC | EAR99 | MOROCCO |
| STM819LM6F | SO-8 | Tape And Reel | 4.65 | - | - | 0.49 | 1000 | NEC | EAR99 | MOROCCO |
Quality & Reliability
| Part Number | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|
| STM819MM6F | SO-8 | Industrial | Ecopack1 | |
| STM819LM6F | SO-8 | Industrial | Ecopack1 | |
