TC94A09F View Datasheet(PDF) - Unspecified

Part Name

Description

Manufacturer

TC94A09F

CMOS Digital Integrated Circuit Silicon Monolithic

Unspecified 

TC94A09F

Pin

Number

Symbol

Pin Name

Function and Operation

Remarks

21~24 P1-0~P1-3

I/O port 1

4-bit CMOS I/O port.

Input/output can be set for each bit by program.

The pins can be set to be pulled-up or

pulled-down by program. Thus, they can be

used as key input pins. When the pins are set

to I/O port input, Clock Stop mode and Wait

mode can be released, according to the change

in input to the pins.

MVDD

RIN1

MVDD

MVDD

25

P3-0

26~28

P3-1/ADin1

~

P3-3/ADin3

P4-0

29

/ADin4

/BUZR

I/O port 3

I/O port 3

/AD analog voltage

input

I/O port 4

/AD analog voltage

input

/buzzer output

5-bit CMOS I/O port.

Input/output can be set for each bit by program.

P3-1 and P4-0 pins are also used as built-in

6-bit 4-channel AD converter analog input pins.

The built-in AD converter uses successive

approximation. The conversion time is 6

instruction cycles (280 ms) when the 75 kHz

crystal oscillator is used; 198 ms when the 4.5

MHz crystal oscillator is used; 180 ms when the

16.9344 MHz crystal oscillator is used. AD

analog input can be set for each pin by

program. The internal power supply (MVDD) is

used as the reference voltage.

The P4-0 pin is also used as the buzzer output

pin.

One of four frequencies: 0.75, 1, 1.5, and 3

kHz, can be selected for buzzer output. The

buzzer is output at the selected frequency at 1

Hz intervals in one of four modes: Continuous,

single-shot, 10 Hz intermittent, and 10 Hz

intermittent at 1 Hz interval.

MVDD

To AD converter

Input instruction

Settings for the AD converter and buzzer, and

their control can be performed by program.

P2-0

33

/EMPHin

34 P2-1/HSOin

I/O port 2

I/O port 2 is a 4-bit CMOS I/O port.

35

P2-2

/LRCKin

/1-bit DAC input

IN1 and IN2 are a 2-bit general-purpose input

port.

36

P2-3

/DATAin

Input/output can be set for each bit of I/O port 2

by program.

I/O port 2 and the IN1 pin can be switched to

1-bit DAC input pins by the CD command to

support shock-proofing functions. In this case,

the I/O port must be set to input.

37

IN1/BCKin

General-purpose With the OTP version, the IN2 pin is also used

input port

as the program power supply pin.

89

IN2/ (VPP)

/1-bit DAC input

(VPP input)

MVDD

MVDD

MVDD

6

2001-10-15

Share Link: