33H datasheet(32/54 Pages) RENESAS

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R8C/33G Group, R8C/33H Group

5. Electrical Characteristics

Under development Preliminary document

Specifications in this document are tentative and subject to change.

REJ03B0306-0010 Rev.0.10

Page 32 of 51

Jul. 21, 2010

Notes:

VCC/AVCC = Vref = 2.7 to 5.5 V, VSS = 0 V and Topr =

−40 to 85°C (J version) / −40 to 125°C (K version), unless otherwise

specified.

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.

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

−−

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

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

φAD

A/D conversion clock

4.0 V

≤ Vref = AVCC ≤ 5.5 V (2)

−

MHz

3.2 V

≤ Vref = AVCC ≤ 5.5 V (2)

−

MHz

2.7 V

≤ Vref = AVCC ≤ 5.5 V (2)

−

MHz

2.2 V

≤ Vref = AVCC ≤ 5.5 V (2)

−

5MHz

−

Tolerance level impedance

−

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

0.80

−−

µs

IVref

Vref current

VCC = 5 V, XIN = f1 =

φAD = 20 MHz

−

−µA

Vref

Reference voltage

2.7

−

AVCC

VIA

Analog input voltage (3)

−

Vref

OCVREF On-chip reference voltage

1.24

1.34

1.44

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