L36C datasheet(48/75 Pages) RENESAS

48 / 75 page

R8C/L35C Group, R8C/L36C Group, R8C/L38C Group, R8C/L3AC Group

5. Electrical Characteristics

REJ03B0293-0100 Rev.1.00

Page 48 of 72

Jun 25, 2010

5.3

Peripheral Function Characteristics

Notes:

1. The A/D conversion result will be undefined in wait mode, stop mode, power-off 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.

2. This applies when the peripheral functions are stopped.

3. 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

(VCC/AVCC = Vref = 2.2 to 5.5 V, VSS = 0 V, and Topr =

−20 to 85°C (N version) /

−40 to 85°C (D version), unless otherwise specified.)

Symbol

Parameter

Conditions

Standard

Unit

Min.

Typ.

Max.

—

Resolution

Vref = AVCC

——

Bit

—

Absolute accuracy (2)

10-bit mode

Vref = AVCC = 5.0 V

AN0 to AN19 input

—

±3

LSB

Vref = AVCC = 3.3 V

AN0 to AN19 input

—

±5

LSB

Vref = AVCC = 3.0 V

AN0 to AN19 input

—

±5

LSB

Vref = AVCC = 2.2 V

AN0 to AN19 input

—

±5

LSB

8-bit mode

Vref = AVCC = 5.0 V

AN0 to AN19 input

—

±2

LSB

Vref = AVCC = 3.3 V

AN0 to AN19 input

—

±2

LSB

Vref = AVCC = 3.0 V

AN0 to AN19 input

—

±2

LSB

Vref = AVCC = 2.2 V

AN0 to AN19 input

—

±2

LSB

φAD

A/D conversion clock

4.0

≤ Vref = AVCC ≤ 5.5 V (1)

2—

MHz

3.2

≤ Vref = AVCC ≤ 5.5 V (1)

2—

MHz

2.7

≤ Vref = AVCC ≤ 5.5 V (1)

2—

MHz

2.2

≤ Vref = AVCC ≤ 5.5 V (1)

2—5

MHz

—

Tolerance level impedance

—

Ω

tCONV

Conversion time

10-bit mode

Vref = AVCC = 5.0 V,

φAD = 20 MHz

2.15

—

µs

8-bit mode

Vref = AVCC = 5.0 V,

φAD = 20 MHz

2.15

—

µs

tSAMP

Sampling time

φAD = 20 MHz

0.75

—

µs

IVref

Vref current

Vcc = 5 V, XIN = f1 =

φAD = 20 MHz

—

µA

Vref

Reference voltage

2.2

—

AVCC

VIA

Analog input voltage (3)

0—

Vref

OCVREF On-chip reference voltage

2 MHz

≤ φAD ≤ 4 MHz

1.19

1.34

1.49

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