M38048FFHKP datasheet(106/116 Pages) RENESAS

106 / 116 page

Rev.1.01

Jan 25, 2005

page 106 of 114

REJ03B0131-0101Z

3804 Group (Spec. H)

A/D converter characteristics

bit

LSB

2tc(XIN)

Ω

µA

Resolution

Absolute accuracy

(excluding quantization error)

Conversion time

Ladder resistor

Reference power

at A/D converter operated

source input current at A/D converter stopped

A/D port inout current

Max.

8-bit A/D mode (Note 1)

10-bit A/D mode (Note 2)

8-bit A/D mode (Note 1)

2.7

≤ VREF ≤ 5.5 V

10-bit A/D mode (Note 2)

2.7

≤ VREF ≤ 5.5 V

8-bit A/D mode (Note 1)

10-bit A/D mode (Note 2)

VREF = 5.0 V

Table 26 A/D converter characteristics

(VCC = 2.7 to 5.5 V, VSS = AVSS = 0 V, Ta = –20 to 85 °C, unless otherwise noted)

Unit

Limits

Parameter

–

tCONV

RLADDER

IVREF

II(AD)

Test conditions

Symbol

Parameter

Limits

Min.

Unit

Typ.

Max.

Conditions

Table 25 A/D converter recommended operating conditions

(VCC = 2.7 to 5.5 V, VSS = AVSS = 0 V,Ta = –20 to 85 °C, unless otherwise noted)

Power source voltage

(When A/D converter is used)

Analog reference voltage

Analog power source voltage

Analog input voltage

Main clock oscillation frequency

(When A/D converter is used)

VCC

VREF

AVSS

VIA

f(XIN)

MHZ

2.7

2.0

0.5

5.0

2.7

≤ VCC < 4.0 V

4.0

≤ VCC < 4.5 V

4.5

≤ VCC ≤ 5.5 V

5.5

VCC

(9✕VCC-0.3)✕1.05

(24✕VCC-60)✕1.05

16.8

8-bit A/D mode (Note 1)

10-bit A/D mode (Note 2)

Note 1: 8-bit A/D mode: When the conversion mode selection bit (bit 7 of address 003816) is “1”.

2: 10-bit A/D mode: When the conversion mode selection bit (bit 7 of address 003816) is “0”.

Note 1: 8-bit A/D mode: When the conversion mode selection bit (bit 7 of address 003816) is “1”.

2: 10-bit A/D mode: When the conversion mode selection bit (bit 7 of address 003816) is “0”.

Note 1: Using one D/A converter, with the value in the DA conversion register of the other D/A converter being “0016”.

Table 27 D/A converter characteristics

(VCC = 2.7 to 5.5 V, VREF = 2.7 V to VCC, VSS = AVSS = 0 V, Ta = –20 to 85 °C, unless otherwise noted)

bit

µs

Ω

Resolution

Absolute accuracy

4.0

≤ VREF ≤ 5.5 V

2.7

≤ VREF < 4.0 V

Setting time

Output resistor

Reference power source input current (Note 1)

Min.

Unit

Limits

Parameter

–

tsu

IVREF

Test conditions

Symbol

D/A converter characteristics

±2

±4

100

200

150

Min.

Typ.

Max.

3.5

1.0

2.5

3.2

Table 28 Power source circuit timing characteristics

(VCC = 2.7 to 5.5 V, VREF = 2.7 V to VCC, VSS = AVSS = 0 V, Ta = –20 to 85 °C, unless otherwise noted)

Internal power source stable time at power-on

Min.

Unit

Limits

Parameter

td(P–R)

Test conditions

Symbol

Power source circuit timing characteristics

Typ.

Max.

2.7

≤ Vcc < 5.5 V

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