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R8C2K Datasheet(PDF) 426 Page - Renesas Technology Corp |
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R8C2K Datasheet(HTML) 426 Page - Renesas Technology Corp |
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426 / 471 page  R8C/2K Group, R8C/2L Group 22. Electrical Characteristics Rev.1.10 Dec 21, 2007 Page 409 of 450 REJ09B0406-0110 NOTES: 1. VCC = 2.2 to 5.5 V, Topr = −20 to 85°C (N version) / −40 to 85°C (D version), unless otherwise specified. 2. These standard values show when the FRA1 register value after reset is assumed. 3. These standard values show when the corrected value of the FRA6 register is written to the FRA1 register. 4. This enables the setting errors of bit rates such as 9600 bps and 38400 bps to be 0% when the serial interface is used in UART mode. NOTE: 1. VCC = 2.2 to 5.5 V, Topr = −20 to 85°C (N version) / −40 to 85°C (D version), unless otherwise specified. NOTES: 1. The measurement condition is VCC = 2.2 to 5.5 V and Topr = 25 °C. 2. Waiting time until the internal power supply generation circuit stabilizes during power-on. 3. Time until system clock supply starts after the interrupt is acknowledged to exit stop mode. Table 22.10 High-speed On-Chip Oscillator Circuit Electrical Characteristics Symbol Parameter Condition Standard Unit Min. Typ. Max. fOCO40M High-speed on-chip oscillator frequency temperature • supply voltage dependence VCC = 2.7 V to 5.5 V −20°C ≤ Topr ≤ 85°C(2) 39.2 40 40.8 MHz VCC = 2.7 V to 5.5 V −40°C ≤ Topr ≤ 85°C(2) 39.0 40 41.0 MHz VCC = 2.2 V to 5.5 V −20°C ≤ Topr ≤ 85°C(3) 35.2 40 44.8 MHz VCC = 2.2 V to 5.5 V −40°C ≤ Topr ≤ 85°C(3) 34.0 40 46.0 MHz High-speed on-chip oscillator frequency when correction value in FRA7 register is written to FRA1 register(4) VCC = 5.0 V, Topr = 25 °C − 36.864 − MHz VCC = 2.7 V to 5.5 V −20°C ≤ Topr ≤ 85°C −3% − 3% % − Value in FRA1 register after reset 08h − F7h − − Oscillation frequency adjustment unit of high- speed on-chip oscillator Adjust FRA1 register (value after reset) to -1 − +0.3 − MHz − Oscillation stability time VCC = 5.0 V, Topr = 25 °C − 10 100 µs − Self power consumption at oscillation VCC = 5.0 V, Topr = 25 °C − 550 −µA Table 22.11 Low-speed On-Chip Oscillator Circuit Electrical Characteristics Symbol Parameter Condition Standard Unit Min. Typ. Max. fOCO-S Low-speed on-chip oscillator frequency 30 125 250 kHz − Oscillation stability time − 10 100 µs − Self power consumption at oscillation VCC = 5.0 V, Topr = 25 °C − 15 −µA Table 22.12 Power Supply Circuit Timing Characteristics Symbol Parameter Condition Standard Unit Min. Typ. Max. td(P-R) Time for internal power supply stabilization during power-on(2) 1 − 2000 µs td(R-S) STOP exit time(3) −− 150 µs |
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