M32CSLASH8B datasheet(350/406 Pages) RENESAS

350 / 406 page

Under development

M32C/8B Group

24. Electrical Characteristics

Preliminary specification

Specifications in this manual are tentative and subject to change.

REJ09B0450-0050 Rev.0.50 Oct 31, 2008

Page 333 of 385

Table 24.9

A/D Conversion Characteristics

(VCC1 = VCC2 = AVCC = VREF = 4.2 to 5.5 V, VSS = AVSS = 0 V, Topr = -20 to 85

°C, f(CPU) =

32MHz unless otherwise specified)

NOTES:

1. The value is obtained when

φAD frequency is at 16 MHz. Keep φAD frequency at 16 MHz or lower.

2. With using the sample and hold function

Table 24.10

D/A Conversion Characteristics

(VCC1 = VCC2 = VREF = 4.2 to 5.5 V, VSS = AVSS = 0 V, Topr = -20 to 85

°C,

f(CPU) = 32MHz unless otherwise specified)

NOTE:

1. Measured when one D/A converter is used, and the DAi register (i = 0, 1) of the unused D/A converter is set to

00h. The current flown into the resistor ladder in the A/D converter is excluded. IVREF flows even if the VCUT

bit in the AD0CON1 register is set to 0 (VREF not connected)

Symbol

Parameter

Measurement Condition

Standard

Unit

Min.

Typ.

Max.

−

Resolution

VREF = VCC1

Bits

INL

Integral nonlinearity error

VREF = VCC1

= VCC2 = 5 V

AN_0 to AN_7,

AN0_0 to AN0_7,

AN2_0 to AN2_7,

AN15_0 to AN15_7,

ANEX0, ANEX1

±3

LSB

External op-amp

connection mode

±7

LSB

DNL

Differential nonlinearity

error

±1

LSB

−

Offset error

±3

LSB

−

Gain error

±3

LSB

RLADDER Resistor ladder

VREF = VCC1

tCONV

10-bit conversion time(1)(2)

2.06

μs

tCONV

8-bit conversion time(1)(2)

1.75

μs

tSAMP

Sampling time(1)

0.188

μs

VREF

Reference voltage

VCC1

VIA

Analog input voltage

VREF

Symbol

Parameter

Measurement Condition

Standard

Unit

Min.

Typ.

Max.

−

Resolution

8Bits

−

Absolute accuracy

1.0

tsu

Setup time

μs

Output resistance

IVREF

Reference power supply

input current

(note 1)

1.5

VCC1 = VCC2 = 5V

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