STM6502, STM6503 STM6504, STM6505 TM Dual push-button Smart Reset with user-adjustable setup delays Features Dual Smart Reset push-button inputs with extended reset setup delay Adjustable Smart Reset setup delay (t ): SRC by external capacitor or three-state logic (product options): t = 2, 6, 10 s (min.) SRC Power-on reset TDFN8 (DG) 2 mm x 2 mm Single RST output, active-low, open-drain Factory-programmable thresholds to monitor V in the range of 1.575 to 4.625 V typ. CC Applications Operating voltage 1.0 V (active-low output Mobile phones, smartphones valid) to 5.5 V e-books Low supply current MP3 players Operating temperature: industrial grade 40 C to +85 C Games Portable navigation devices TDFN8 package: 2 mm x 2 mm x 0.75 mm Any application that requires delayed reset push-button(s) response for improved system RoHS compliant stability Table 1. Device summary t Reset or Power SRC Voltage inputs Smart Reset inputs programming Good outputs Part Three- Package number SRE state Ext. V V SR0 SR1 immediate, RST BLD CC BAT SRC pin input independent TSR (1) STM6502 TDFN-8L STM6503 TDFN-8L (1) STM6504 TDFN-8L STM6505 TDFN-8L 1. Contact local ST sales office for availability. February 2011 Doc ID 16101 Rev 6 1/29 www.st.com 1Contents STM6502, STM6503, STM6504, STM6505 Contents 1 Description . 5 1.1 Smart Reset devices . 5 1.2 Pin descriptions 10 1.2.1 Power supply (V ) 10 CC 1.2.2 Ground (V ) . 10 SS 1.2.3 Primary Smart Reset input (SR0) . 10 1.2.4 Secondary Smart Reset input (SR1) . 10 1.2.5 Edge-triggered Smart Reset input (SRE pin) STM6504 only . 11 1.2.6 Adjustable delay of Smart Reset input (SRC pin) STM6502 and STM6505 only . 11 1.2.7 Programmable Smart Reset input delay (TSR pin) STM6503 and STM6504 only . 12 1.2.8 Reset output (RST) 12 1.2.9 Battery monitoring input (V ) STM6505 only . 12 BAT 1.2.10 Battery low detect output (BLD) STM6505 only . 12 2 Typical operating characteristics . 13 3 Maximum ratings . 15 4 DC and AC parameters 16 5 Package mechanical data 20 6 Part numbering 26 7 Package marking . 27 8 Revision history . 28 2/29 Doc ID 16101 Rev 6