UPD78361A Просмотр технического описания (PDF) - NEC => Renesas Technology

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UPD78361A

16/8-BIT SINGLE-CHIP MICROCONTROLLER

NEC => Renesas Technology 

µPD78361A, 78362A

3.8 A/D CONVERTER

The µPD78362A contains a high-speed, high-resolution 10-bit analog-to-digital (A/D) converter (conversion

time 12.6µs at an internal clock frequency of 16 MHz). Successive approximation type is adopted. This

converter is provided with eight analog input lines (ANI0-ANI7) and can perform various operations as the

application requires, in select, scan, and mixed modes.

When A/D conversion ends, an internal interrupt (INTAD) occurs. This interrupt can start a macro service

that executes automatic data transfer through hardware.

Figure 3-14. Block Diagram of A/D Converter

ANI0

ANI1

ANI2

ANI3

ANI4

ANI5

ANI6

ANI7

INTCM03

INTP2

(Start trigger)

Controller

ADM (8)

8

Sample & hold

Resistor

string

9

9

Internal bus

Comparator

0

SAR (10)

10

10

0

ADCR0

ADCR1

ADCR2

ADCR3

ADCR4

ADCR5

ADCR6

ADCR7

10

AV DD

AV REF

AVSS

38

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