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STM690SM6E Datasheet(PDF) 1 Page - STMicroelectronics |
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STM690SM6E Datasheet(HTML) 1 Page - STMicroelectronics |
1 / 42 page August 2010 Doc ID 10519 Rev 9 1/42 1 STM690, STM704, STM795 STM802, STM804, STM805, STM806 3 V supervisor with battery switchover Features ■ RST or RST 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) ■ Guaranteed RST (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 1. Contact local ST sales office for availability. 8 1 SO8 (M) TSSOP8 3x3 (DS)(1) Table 1. Device summary Watchdog Input Active- low RST(1) Active- high RST(1) Manual reset input Battery switchover Power-fail comparator Chip enable gating STM690T/S/R ✓✓ ✓ ✓ STM704T/S/R ✓✓ ✓ ✓ STM795T/S/R ✓(2) ✓✓ STM802T/S/R ✓✓ ✓ ✓ STM804T/S/R ✓✓(2) ✓✓ STM805T/S/R ✓✓(2) ✓✓ STM806T/S/R ✓✓ ✓ ✓ 1. All RST outputs push-pull (unless otherwise noted). 2. Open drain output. www.st.com |
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