Renesas R8C/15 Informações Técnicas descarregar pdf (Página 22)

Rev.2.00 Jan 30, 2006 Page 20 of 37

REJ03B0102-0200

R8C/14 Group, R8C/15 Group 5. Electrical Characteristics

NOTES:

1. V

CC = AVCC = 2.7 to 5.5V at Topr = -20 to 85 °C / -40 to 85 °C, unless otherwise specified.

2. If f1 exceeds 10MHz, divide the f1 and hold A/D operating clock frequency (φ

AD) 10MHz or below.

3. If the AVcc is less than 4.2V, divide the f1 and hold A/D operating clock frequency (φ

AD) f1/2 or below.

4. Hold V

CC = Vref

Figure 5.1 Port P1, P3 and P4 Measurement Circuit

Table 5.3 A/D Converter Characteristics

Symbol Parameter Conditions

Standard

Unit

Min. Typ. Max.

− Resolution V

ref = VCC −−10 Bits

− Absolute

Accuracy

10-Bit Mode φ

AD = 10MHz, Vref = VCC = 5.0V −−±3 LSB

8-Bit Mode φ

AD = 10MHz, Vref = VCC = 5.0V −−±2 LSB

10-Bit Mode

AD = 10MHz, Vref = VCC = 3.3V

(3)

−−±5 LSB

8-Bit Mode

AD = 10MHz, Vref = VCC = 3.3V

(3)

−−±2 LSB

ladder Resistor Ladder Vref = VCC 10 − 40 kΩ

conv Conversion Time 10-Bit Mode

AD = 10MHz, Vref = VCC = 5.0V

3.3 −−µs

8-Bit Mode

AD = 10MHz, Vref = VCC = 5.0V

2.8 −−µs

ref Reference voltage −

(4)

− V

IA Analog Input Voltage 0 − Vref V

− A/D Operating

Clock

Frequency

(2)

Without Sample & Hold 0.25 − 10 MHz

With Sample & Hold 1 − 10 MHz

30pF

1 2 ... 17 18 19 20 21 22 23 24 25 26 27 ... 41 42

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