R5F212BCSNFA datasheet(38/66 Pages) RENESAS

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R8C/2A Group, R8C/2B Group

5. Electrical Characteristics

Rev.2.10

Nov 26, 2007

Page 36 of 60

REJ03B0182-0210

NOTES:

VCC/AVCC = Vref = 2.2 to 5.5 V at Topr = -20 to 85

°C (N version) / -40 to 85°C (D version), unless otherwise specified.

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.

NOTES:

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

°C (N version) / -40 to 85°C (D version), unless otherwise specified.

This applies when one D/A converter is used and the value of the DAi register (i = 0 or 1) for the unused D/A converter is 00h.

The resistor ladder of the A/D converter is not included. Also, even if the VCUT bit in the ADCON1 register is set to 0 (VREF

not connected), IVref flows into the D/A converters.

Table 5.3

A/D Converter Characteristics(1)

Symbol

Parameter

Conditions

Standard

Unit

Min.

Typ.

Max.

−

Resolution

Vref = AVCC

−−

Bit

−

Absolute

accuracy

10-bit mode

φAD = 10 MHz, Vref = AVCC = 5.0 V

−−

±3

LSB

8-bit mode

φAD = 10 MHz, Vref = AVCC = 5.0 V

−−

±2

LSB

10-bit mode

φAD = 10 MHz, Vref = AVCC = 3.3 V

−−

±5

LSB

8-bit mode

φAD = 10 MHz, Vref = AVCC = 3.3 V

−−

±2

LSB

10-bit mode

φAD = 5 MHz, Vref = AVCC = 2.2 V

−−

±5

LSB

8-bit mode

φAD = 5 MHz, Vref = AVCC = 2.2 V

−−

±2

LSB

Rladder

Resistor ladder

Vref = AVCC

−

Ω

tconv

Conversion time

10-bit mode

φAD = 10 MHz, Vref = AVCC = 5.0 V

3.3

−−

µs

8-bit mode

φAD = 10 MHz, Vref = AVCC = 5.0 V

2.8

−−

µs

Vref

Reference voltage

2.2

−

AVCC

VIA

Analog input voltage(2)

−

AVCC

−

A/D operating

clock frequency

Without sample and hold

Vref = AVCC = 2.7 to 5.5 V

0.25

−

MHz

With sample and hold

Vref = AVCC = 2.7 to 5.5 V

−

MHz

Without sample and hold

Vref = AVCC = 2.2 to 5.5 V

0.25

−

5MHz

With sample and hold

Vref = AVCC = 2.2 to 5.5 V

−

5MHz

Table 5.4

D/A Converter Characteristics(1)

Symbol

Parameter

Conditions

Standard

Unit

Min.

Typ.

Max.

−

Resolution

−−

8Bit

−

Absolute accuracy

−−

1.0

tsu

Setup time

−−

µs

Output resistor

Ω

IVref

Reference power input current

(NOTE 2)

−−

1.5

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