STM795T/S/R：3V Supervisor
The STM690/704/795/802/804/805/806 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 STM704/795/806) as well as a power-fail comparator (except for STM795) 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
- RST orRST outputs
- NVRAM supervisor for external LPSRAM
- Chip enable gating (STM795 only) for external LPSRAM (7 ns max prop delay)
- Manual (push-button) reset input
- 200 ms (typ) trec
- Watchdog timer - 1.6 s (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
产品规格
| Description | Version | Size |
|---|---|---|
| DS3898: 3 V supervisor with battery switchover | 9.1 | 945 KB |
应用手册
| Description | Version | Size |
|---|---|---|
| AN1957: Microprocessor supervisor functions | 2.0 | 577 KB |
| AN1336: Power-fail comparator for NVRAM supervisory devices | 2.0 | 127 KB |
Technical Notes & Articles
| Description | Version | Size |
|---|---|---|
| TN0941: Reset and supervisor ICs: frequently asked questions (FAQ) | 1.0 | 328 KB |
宣传册
| Description | Version | Size |
|---|---|---|
| Resets and supervisors - portfolio overview | 1.0 | 1 MB |
| Watchdog ICs For automotive applications | 487 KB |
样片和购买
| 型号 | 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| STM795TM6F | SO-8 | Tape And Reel | 3.08 | - | - | 1.31 | 1000 | NEC | EAR99 | MOROCCO |
| STM795SM6F | SO-8 | Tape And Reel | 2.93 | - | - | 1.31 | 1000 | NEC | EAR99 | MOROCCO |
| STM795RM6F | SO-8 | Tape And Reel | 2.63 | - | - | 1.31 | 1000 | NEC | EAR99 | MOROCCO |
质量和可靠性
| 型号 | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|
| STM795TM6F | SO-8 | Industrial | Ecopack1 | md_zm-wspc-so-wspc-08-wspc-.15-wspc-jedec_bzzm-wspc-16vabat.pdf md_zm-wspc-so-wspc-08-wspc-.xml |
| STM795SM6F | SO-8 | Industrial | Ecopack1 | md_o7-wspc-so-wspc-08-wspc-.15-wspc-jedec_bzzm16vabas-wspc-(stm795sm6f).pdf md_o7-wspc-so-wspc-08-wspc-.xml |
| STM795RM6F | SO-8 | Industrial | Ecopack1 | md_o7-wspc-so-wspc-08-wspc-.15-wspc-jedec_bzzm16vabar-wspc-(stm795rm6f)_a_ver2_signed.pdf md_o7-wspc-so-wspc-08-wspc-.15-wspc-jedec_bzzm16vabar-wspc-(stm795rm6f)_a_ver2.xml |
- 3 V supervisor with battery switchover STM805T-S-R
- circuit_diagram_10519_thumbnail.png STM805T-S-R
- Microprocessor supervisor functions STM805T-S-R
- Power-fail comparator for NVRAM supervisory devices M41T60
- Reset and supervisor ICs: frequently asked questions (FAQ) STM805T-S-R
- Reset and supervisor ICs: frequently asked questions (FAQ) STM805T-S-R
- Reset and supervisor ICs: frequently asked questions (FAQ) STM805T-S-R
- md_zm-wspc-so-wspc-08-wspc-.15-wspc-jedec_bzzm-wspc-16vabat.pdf STM795T-S-R
- md_zm-wspc-so-wspc-08-wspc-.xml M41T82
- md_o7-wspc-so-wspc-08-wspc-.15-wspc-jedec_bzzm16vabas-wspc-(stm795sm6f).pdf STM795T-S-R
- md_o7-wspc-so-wspc-08-wspc-.xml TS4871
- md_o7-wspc-so-wspc-08-wspc-.15-wspc-jedec_bzzm16vabar-wspc-(stm795rm6f)_a_ver2_signed.pdf STM795T-S-R
- md_o7-wspc-so-wspc-08-wspc-.15-wspc-jedec_bzzm16vabar-wspc-(stm795rm6f)_a_ver2.xml STM795T-S-R
