R8CSLASH15 datasheet(20/40 Pages) RENESAS

20 / 40 page

Rev.2.00

Jan 30, 2006

Page 20 of 37

REJ03B0102-0200

R8C/14 Group, R8C/15 Group

5. Electrical Characteristics

NOTES:

VCC = AVCC = 2.7 to 5.5V at Topr = -20 to 85

°C / -40 to 85 °C, unless otherwise specified.

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

φAD) 10MHz or below.

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

φAD) f1/2 or below.

Hold VCC = 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

Vref = VCC

−−

Bits

−

Absolute

Accuracy

10-Bit Mode

φAD = 10MHz, Vref = VCC = 5.0V

−−

±3

LSB

8-Bit Mode

φAD = 10MHz, Vref = VCC = 5.0V

−−

±2

LSB

10-Bit Mode

φAD = 10MHz, Vref = VCC = 3.3V(3)

−−

±5

LSB

8-Bit Mode

φAD = 10MHz, Vref = VCC = 3.3V(3)

−−

±2

LSB

Rladder

Resistor Ladder

Vref = VCC

−

Ω

tconv

Conversion Time

10-Bit Mode

φAD = 10MHz, Vref = VCC = 5.0V

3.3

−−

µs

8-Bit Mode

φAD = 10MHz, Vref = VCC = 5.0V

2.8

−−

µs

Vref

Reference voltage

−

VCC(4)

−

VIA

Analog Input Voltage

−

Vref

−

A/D Operating

Clock

Frequency(2)

Without Sample & Hold

0.25

−

MHz

With Sample & Hold

−

MHz

30pF

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