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REJ03B0267-0101 Rev.1.01 Page 91 of 156 Jul 23, 2010 M16C/5M Group, M16C/57 Group 5. Electrical Characteristics J-Version Note: 1. To use the power-on reset function, enable voltage monitor 0 reset by setting the LVDAS bit in the OFS1 address to 0. Figure 5.4 Power-On Reset Circuit Electrical Characteristics Note: 1. When VCC = 5 V. Table 5.12 Power-On Reset Circuit The measurement condition is Topr = -40°C to 85°C, unless otherwise specified. Symbol Parameter Condition Standard Unit Min. Typ. Max. trth External power VCC rise gradient 2.0 50000 mV/ms tfth External power VCC fall gradient 50000 mV/ms Vpor Voltage at which power-on reset enabled (1) 0.1 V tw(por) Hold time at which power-on reset enabled 1.0 ms Table 5.13 Power Supply Circuit Timing Characteristics Symbol Parameter Measuring Condition Standard Unit Min. Typ. Max. td(P-R) Time for Internal Power Supply Stabilization During Powering-On VCC = 3.0 V to 5.5V 5ms td(R-S) STOP Release Time 300 μs td(W-S) Low Power Mode Wait Mode Release Time 300 μs Vpor Internal reset signal 1 fOCO-S × 128 External Power VCC Vdet0 t rth tw(por) t rth Vdet0 1 fOCO-S × 128 t fth |
