STM704SDS6F Fast Delivery |IC PHOENIX CO.,LIMITED

STM704SDS6F ,3V SupervisorFeatures■ RST or RST outputs 8■ NVRAM supervisor for external LPSRAM ■ Chip enable gating (STM795 o ..
STM704SDS6F ,3V SupervisorApplications information . . . . . . 172.10 Using a SuperCap™ as a backup power source . . . ..
STM704SM6E ,3V Supervisor with Battery SwitchoverFEATURES SUMMARY■ RST OR RST OUTPUTS Figure 1. Packages■ NVRAM SUPERVISOR FOR EXTERNAL LPSRAM■ CHIP ..
STM704SM6F ,3V Supervisor with Battery SwitchoverSTM690, STM704, STM795STM802, STM804, STM805, STM8063V Supervisor with Battery Switchover
STM704TM6F ,3V Supervisor with Battery SwitchoverLogic Diagram (STM795)V V V VCC BAT CC BATV VOUT OUTWDI VSTM690/CCSW(1)RST(RST) STM795 RST802/804/E ..
STM705M6E ,5V SupervisorBlock Diagram (STM707/708) . . . . . . 7Figure 10.Hardware Hookup . . . . . . . 8OPERATI ..
SY58023UMG , ULTRA-LOW JITTER 2 × 2 CROSSPOINT SWITCH w/CML OUTPUTS AND INTERNAL I/O TERMINATION
SY58024UMG , ULTRA-LOW JITTER DUAL 2 × 2 CROSSPOINT SWITCH w/ CML OUTPUTS AND INTERNAL I/O TERMINATION
SY58024UMG , ULTRA-LOW JITTER DUAL 2 × 2 CROSSPOINT SWITCH w/ CML OUTPUTS AND INTERNAL I/O TERMINATION
SY58024UMG , ULTRA-LOW JITTER DUAL 2 × 2 CROSSPOINT SWITCH w/ CML OUTPUTS AND INTERNAL I/O TERMINATION
SY58024UMI , ULTRA-LOW JITTER DUAL 2 × 2 CROSSPOINT SWITCH w/ CML OUTPUTS AND INTERNAL I/O TERMINATION
SY58024UMI , ULTRA-LOW JITTER DUAL 2 × 2 CROSSPOINT SWITCH w/ CML OUTPUTS AND INTERNAL I/O TERMINATION

STM704SDS6F
3V Supervisor
August 2010 Doc ID 10519 Rev 9 1/42
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
Contact local ST sales office for availability.
Table 1. Device summary All RST outputs push-pull (unless otherwise noted). Open drain output.
Contents STM690, STM704, STM795, STM802, STM804, STM805, STM806
2/42 Doc ID 10519 Rev 9
Contents Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.1 Pin descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.1.1 MR (manual reset) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.1.2 WDI (watchdog input) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.1.3 RST (active-low reset) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.1.4 RST (active-high reset - open drain) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.1.5 PFI (power-fail input) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.1.6 PFO (power-fail output) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.1.7 VOUT (supply output voltage) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.1.8 Vccsw (VCC switch output) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.1.9 E (chip enable input) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
1.1.10 ECON (conditional chip enable) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
1.1.11 VBAT (backup battery input) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.1 Reset output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.2 Push-button reset input (STM704/806) . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.3 Watchdog input (NOT available on STM704/795/806) . . . . . . . . . . . . . . . 14
2.4 Backup battery switchover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.5 Chip enable gating (STM795 only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.6 Chip enable input (STM795 only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.7 Chip enable output (STM795 only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.8 Power-fail input/output (NOT available on STM795) . . . . . . . . . . . . . . . . 17
2.9 Applications information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2.10 Using a SuperCap™ as a backup power source . . . . . . . . . . . . . . . . . . . 19
2.11 Negative-going VCC transients . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Typical operating characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 DC and AC parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
STM690, STM704, STM795, STM802, STM804, STM805, STM806 Contents
Doc ID 10519 Rev 9 3/42 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 Part numbering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
List of tables STM690, STM704, STM795, STM802, STM804, STM805, STM806
4/42 Doc ID 10519 Rev 9
List of tables
Table 1. Device summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Table 2. Signal names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Table 3. Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Table 4. I/O status in battery backup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Table 5. Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Table 6. Operating and AC measurement conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Table 7. DC and AC characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Table 8. SO8 - 8-lead plastic small outline, 150 mils body width,
package mechanical data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Table 9. TSSOP8 - 8-lead, thin shrink small outline, 3 x 3 mm body size, mechanical data . . . . . . 38
Table 10. Ordering information scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Table 11. Marking description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Table 12. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
STM690, STM704, STM795, STM802, STM804, STM805, STM806 List of figures
Doc ID 10519 Rev 9 5/42
List of figures
Figure 1. Logic diagram (STM690/802/804/805) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 2. Logic diagram (STM704/806) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 3. Logic diagram (STM795) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Figure 4. STM690/802/804/805 connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 5. STM704/806 connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 6. STM795 connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 7. Block diagram (STM690/802/804/805) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 8. Block diagram (STM704/806) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 9. Block diagram (STM795) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 10. Hardware hookup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 11. Chip enable gating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Figure 12. Chip enable waveform (STM795) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Figure 13. Power-fail comparator waveform (STM690/704/802/804/805/806) . . . . . . . . . . . . . . . . . . 18
Figure 14. Using a SuperCap™. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 15. VCC to VOUT on-resistance vs. temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Figure 16. VBAT to VOUT on-resistance vs. temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Figure 17. Supply current vs. temperature (no load) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 18. Battery current vs. temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 19. VPFI threshold vs. temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Figure 20. Reset comparator propagation delay vs. temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Figure 21. Power-up trec vs. temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 22. Normalized reset threshold vs. temperature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 23. Watchdog time-out period vs. temperature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Figure 24. E to ECON on-resistance vs. temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Figure 25. PFI to PFO propagation delay vs. temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Figure 26. Output voltage vs. load current (VCC = 5 V; VBAT = 2.8 V; TA = 25 °C) . . . . . . . . . . . . . . . 25
Figure 27. Output voltage vs. load current (VCC = 0 V; VBAT = 2.8 V; TA = 25 °C) . . . . . . . . . . . . . . . 26
Figure 28. RST output voltage vs. supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Figure 29. RST output voltage vs. supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Figure 30. Power-fail comparator response time (assertion) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Figure 31. Power-fail comparator response time (de-assertion) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Figure 32. Maximum transient duration vs. reset threshold overdrive . . . . . . . . . . . . . . . . . . . . . . . . . 28
Figure 33. E to ECON propagation delay vs. temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Figure 34. E to ECON propagation delay test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Figure 35. AC testing input/output waveforms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Figure 36. MR timing waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Figure 37. Watchdog timing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Figure 38. SO8 – 8-lead plastic small outline, 150 mils body width,
package mechanical drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Figure 39. TSSOP8 – 8-lead, thin shrink small outline, 3 x 3 mm body size, outline. . . . . . . . . . . . . . 38

Partno	Mfg	Dc	Qty	Available	Descript
STM704SDS6F	ST	N/a	1017	avai	3V Supervisor
STM704SDS6F	STM	N/a	1800	avai	3V Supervisor