TC9328AF datasheet(5/84 Pages) TOSHIBA

5 / 84 page

TC9328AF

2004-09-13

Pin No.

Symbol

Pin Name

Function and Operation

Remarks

32~34

P2-0~P2-2

I/O port 2

P2-3/PSC

I/O port 2

/Prescaller

/PSC output

The input and output of these 4-bit I/O

ports can be programmed in 1-bit units.

The P2-3 pin is also used as a PLL

prescaller PSC signal output pin. A PLL

can be configured using an external

prescaller. In such a case, set the pin to

I/O port output.

54~57

P3-0~P3-3

I/O port 3

58~61

P5-0/ADin1~

P5-3/ADin4

I/O port 5

/AD analog voltage

input

62~69

P6-0~P7-3

I/O port 6, 7

4-bit I/O ports, allowing input and output

to be programmed in 1 bit units.

Pins P5-0 to P5-3 can also be used for

analog input to the built-in 6-bit,

4-channel AD converter.

The conversion time of the built-in AD

converter using the successive

comparison method is 280

µs. The

necessary pin can be programmed to

AD analog input in 1-bit units. Up to the

doubled voltage VDB (VDD × 2) can be

input as the AD input voltage.

The I/O ports are N-ch open drain

output. Up to the VDB voltage can be

applied to the AD input pins, and up to

3.6 V can be applied to the I/O port

pins. I/O port 3 can obtain N-ch

high-output current (2 mA typ.) even at

low voltage.

The AD converter and all associated

controls are performed via sortware.

VLCD

VDD

Input

instruction

Input

instruction

VDD

To AD converter

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