HD64F2149YV datasheet(56/1075 Pages) RENESAS

56 / 1075 page

Section 1 Overview

Rev. 3.00 Jan 18, 2006 page 28 of 1044

REJ09B0280-0300

Pin No.

Type

Symbol

FP-100B,

TFP-100B TFP-144 I/O

Name and Function

AN7–AN0

45–38

68–75

Input

Analog input: A/D converter analog input

pins.

A/D

converter

(ADC)

CIN0–

CIN15

26–29,

32–35,

48, 47, 31,

30, 21, 20,

11, 10

78–85,

41–37,

35–33

Input

Expansion A/D input: Expansion A/D

input pins can be connected to the A/D

converter, but since they are also used as

digital input/output pins, precision will fall.

ADTRG

Input

A/D conversion external trigger input:

Pin for input of an external trigger to start

A/D conversion.

D/A

converter

(DAC)

DA0

DA1

Output

Analog output: D/A converter analog

output pins.

A/D

converter

D/A

converter

AVCC

Input

Analog power: The analog power supply

pin for the A/D converter and D/A

converter.

When the A/D and D/A converters are not

used, this pin should be connected to the

system power supply (+5 V or +3 V).

AVref

Input

Analog reference voltage: The reference

power supply pin for the A/D converter and

D/A converter.

When the A/D and D/A converters are not

used, this pin should be connected to the

system power supply (+5 V or +3 V).

AVSS

Input

Analog ground: The ground pin for the

A/D converter and D/A converter. This pin

should be connected to the system power

supply

(0 V).

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