MSM66P589 Просмотр технического описания (PDF) - Oki Electric Industry

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MSM66P589

OLMS-66K Series CMOS 16-Bit Microcontroller

Oki Electric Industry 

¡ Semiconductor

MSM66589/66P589/66Q589

PIN DESCRIPTION (Continued)

Symbol

AI0-AI15

AVDD

VREF

AGND

OSC0

OSC1

OE

NMI

RES

EA

VDD

GND

Type

I

I

I

I

I

O

I

I

I

I

I

I

Description

Analog signal input pin for A/D converter

Power supply input pin for A/D converter

Reference voltage input pin for A/D converter

GND input pin for A/D converter

Basic clock oscillation pin

When P0, P1, P2, P7_4-P7_7, and P8-P11 are in an output state and OE pin is "H"

level, P0, P1, P2, P7_4-P7_7, and P8-P11 go to a high-impedance state.

When P0, P1, P2, P7_4-P7_7, and P8-P11 are in an output state and OE pin is "L"

level, P0, P1, P2, P7_4-P7_7, and P8-P11 output "H" or "L" level.

However, when P0, P1, P2, P7_4-P7_7, and P8-P11 are in an input state, these

ports are not under the influence of OE pin.

Nonmaskable interrupt request input pin

Low-active RESET input pin

Normally set to "H" level. If set to "L" level, the program memory goes into

external access mode and accesses external program memory

Power supply pin

Ground pin

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