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34C Datasheet(PDF) 30 Page - Renesas Technology Corp |
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34C Datasheet(HTML) 30 Page - Renesas Technology Corp |
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30 / 57 page  R8C/34C Group 5. Electrical Characteristics R01DS0007EJ0100 Rev 1.00 Page 30 of 54 Aug. 24, 2010 Notes: 1. VCC/AVCC = Vref = 2.2 to 5.5 V, VSS = 0 V and Topr = −20 to 85°C (N version) / −40 to 85°C (D version), unless otherwise specified. 2. The A/D conversion result will be undefined in wait mode, stop mode, when the flash memory stops, and in low-current- consumption mode. Do not perform A/D conversion in these states or transition to these states during A/D conversion. 3. When the analog input voltage is over the reference voltage, the A/D conversion result will be 3FFh in 10-bit mode and FFh in 8-bit mode. Table 5.3 A/D Converter Characteristics Symbol Parameter Conditions Standard Unit Min. Typ. Max. − Resolution Vref = AVCC −− 10 Bit − Absolute accuracy 10-bit mode Vref = AVCC = 5.0 V AN0 to AN7 input, AN8 to AN11 input −− ±3 LSB Vref = AVCC = 3.3 V AN0 to AN7 input, AN8 to AN11 input −− ±5 LSB Vref = AVCC = 3.0 V AN0 to AN7 input, AN8 to AN11 input −− ±5 LSB Vref = AVCC = 2.2 V AN0 to AN7 input, AN8 to AN11 input −− ±5 LSB 8-bit mode Vref = AVCC = 5.0 V AN0 to AN7 input, AN8 to AN11 input −− ±2 LSB Vref = AVCC = 3.3 V AN0 to AN7 input, AN8 to AN11 input −− ±2 LSB Vref = AVCC = 3.0 V AN0 to AN7 input, AN8 to AN11 input −− ±2 LSB Vref = AVCC = 2.2 V AN0 to AN7 input, AN8 to AN11 input −− ±2 LSB φAD A/D conversion clock 4.0 V ≤ Vref = AVCC ≤ 5.5 V (2) 2 − 20 MHz 3.2 V ≤ Vref = AVCC ≤ 5.5 V (2) 2 − 16 MHz 2.7 V ≤ Vref = AVCC ≤ 5.5 V (2) 2 − 10 MHz 2.2 V ≤ Vref = AVCC ≤ 5.5 V (2) 2 − 5MHz − Tolerance level impedance − 3 − k Ω tCONV Conversion time 10-bit mode Vref = AVCC = 5.0 V, φAD = 20 MHz 2.2 −− µs 8-bit mode Vref = AVCC = 5.0 V, φAD = 20 MHz 2.2 −− µs tSAMP Sampling time φAD = 20 MHz 0.8 −− µs IVref Vref current VCC = 5 V, XIN = f1 = φAD = 20 MHz − 45 −µA Vref Reference voltage 2.2 − AVCC V VIA Analog input voltage (3) 0 − Vref V OCVREF On-chip reference voltage 2 MHz ≤ φAD ≤ 4 MHz 1.19 1.34 1.49 V |
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