link to page 5 link to page 5 link to page 5 link to page 5 link to page 5 link to page 5 link to page 5 link to page 5 link to page 5 ATtiny4/5/9/101.5System and Reset CharacteristicsTable 1-4. Reset and Internal Voltage Characteristics SymbolParameterConditionMin (1) Typ (1) Max (1) Units RESET Pin Threshold VRST 0.2 V 0.9V V Voltage CC CC V 2000 Minimum pulse width on CC = 1.8V tRST V 700 ns RESET Pin CC = 3V V = 5V 400 CC tTOUT Time-out after reset 64 128 ms Note: 1. Values are guidelines, only 1.5.1Power-On ResetTable 1-5. Characteristics of Enhanced Power-On Reset. TA = -40 - 125°C SymbolParameterMin (1) Typ (1) Max (1) Units VPOR Release threshold of power-on reset (2) 1.1 1.4 1.7 V VPOA Activation threshold of power-on reset (3) 0.6 1.3 1.7 V SRON Power-On Slope Rate 0.01 V/ms Notes: 1. Values are guidelines, only 2. Threshold where device is released from reset when voltage is rising 3. The Power-on Reset will not work unless the supply voltage has been below VPOT (falling) 1.5.2VLevel MonitorCCTable 1-6. Voltage Level Monitor Thresholds ParameterMinTyp (1) MaxUnits Trigger level VLM1L 1.1 1.4 1.7 Trigger level VLM1H 1.4 1.6 1.9 V Trigger level VLM2 2.0 2.5 2.7 Trigger level VLM3 3.0 3.7 4.5 Settling time VMLM2,VLM3 (VLM1H,VLM1L) 5 (50) µs Note: 1. Typical values at room temperature 5 8127D–Appendix A–AVR–08/11 Document Outline Appendix A – ATtiny4/5/9/10 Specification at 125°C 1. Electrical Characteristics 1.1 Absolute Maximum Ratings* 1.2 DC Characteristics 1.3 Speed 1.4 Clock Characteristics 1.4.1 Accuracy of Calibrated Internal Oscillator 1.4.2 External Clock Drive 1.5 System and Reset Characteristics 1.5.1 Power-On Reset 1.5.2 VCC Level Monitor 1.6 Analog Comparator Characteristics 1.7 ADC Characteristics (ATtiny5/10, only) 1.8 Serial Programming Characteristics 2. Typical Characteristics 2.1 Active Supply Current 2.2 Idle Supply Current 2.3 Power-down Supply Current 2.4 Pin Pull-up 2.5 Pin Driver Strength 2.6 Pin Threshold and Hysteresis 2.7 Analog Comparator Offset 2.8 Internal Oscillator Speed 2.9 VLM Thresholds 2.10 Current Consumption of Peripheral Units 2.11 Reset Pulsewidth 3. Ordering Information 3.1 ATtiny4 3.2 ATtiny5 3.3 ATtiny9 3.4 ATtiny10 4. Revision History