TMP47C990E Просмотр технического описания (PDF) - Toshiba

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TMP47C990E

CMOS 4-bit Microcontroller

Toshiba 

TMP47C101/201

Pin Assignment (Top View)

Pin Function

Pin Name

R43 to R40

R53 to R50

R81 (T2)

R80 (INT2)

XIN

XOUT

RESET

HOLD (INT1)

VDD

VSS

Input/Output

I/O

I/O (Input)

Input

Output

Input

I/O (Input)

Power Supply

Functions

4-bit I/O port with latch.

When used as input port, the latch must be set to “1”.

Every bit data is possible to be set, cleared and tested by the bit manipulation

instruction of the L-register indirect addressing.

2-bit I/O port with latch.

Timer/Counter 2 external input

When used as input port, external interrupt pin, or timer/counter

external input pin, the latch must be set to “1”.

External interrupt 2 input

Resonator connecting pins,

For inputting external clock, XIN is used and XOUT is opened.

Reset signal input

Hold request/release signal input

+5 V

OV (GND)

External interrupt 1 input and R82 I/O

2/32

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