R8CSLASH13 datasheet(164/224 Pages) RENESAS

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R8C/13 Group

16. Electrical Characteristics

Rev.1.20

Jan 27, 2006

page 153 of 205

REJ09B0111-0120

Table 16.3 A/D Conversion Characteristics

Standard

Min.Typ.Max.

–

Resolution

Bit

Vref =VCC

Symbol

Parameter

Measuring condition

Unit

LSB

±3

RLADDER

tCONV

Ladder resistance

Conversion time

Reference voltage

Analog input voltage

VIA

VREF

0Vref

NOTES:

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

2. If fAD exceeds 10 MHz more, divide the fAD and hold A/D operating clock frequency (ØAD) 10 MHz or below.

3. If the AVcc is less than 4.2V, divide the fAD and hold A/D operating clock frequency (ØAD) fAD/2 or below.

4. Hold Vcc=Vref.

øAD=10 MHz, Vref=Vcc=5.0V

VREF=VCC

–

Absolute

accuracy

–

10 bit mode

8 bit mode

øAD=10 MHz, Vref=Vcc=5.0V

±2

LSB

10 bit mode

8 bit mode

øAD=10 MHz, Vref=Vcc=3.3V(3)

±5LSB

øAD=10 MHz, Vref=Vcc=3.3V(3)

±2LSB

Ω

10 bit mode

8 bit mode

øAD=10 MHz, Vref=Vcc=5.0V

3.3

2.8

µs

A/D operating

clock frequency(2)

Without sample & hold

With sample & hold

0.25

MHz

1.0

MHz

VCC(4)

Figure 16.1 Port P0 to P4 measurement circuit

30pF

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