EM78P259N/260N

8-Bit Microprocessor with OTP ROM

5.2 EM78P260NP/M/KM

Symbol

Pin No.

Type

Function

 

 

 

 

 

 

 

 

P70

16

I/O

General purpose input/output pin

Default value after a power-on reset

 

 

 

 

 

 

 

P60~P67

7~14

I/O

General purpose input/output pin

Open-drain

 

 

 

Default value after a power-on reset

 

 

 

General purpose input/output pin

P50~P57

1~4

I/O

Pull-high/pull-down

17~20

Default value after a power-on reset

 

 

 

 

 

Wake up from sleep mode when the status of the pin changes

 

 

 

“-“ : the input pin of Vin- of the comparator

CIN-, CIN+

13, 12

I

“+” : the input pin of Vin+ of the comparator

CO

11

O

Pin CO is the comparator output

 

 

 

Defined by IOC80 <4:3>

 

 

 

 

OSCI

17

I

Crystal type: Crystal input terminal or external clock input pin

RC type: RC oscillator input pin

 

 

 

OSCO

16

I/O

Crystal type: Crystal input terminal or external clock input pin.

RC type: clock output with a duration of one instruction cycle

 

 

 

External clock signal input

 

 

 

If set as /RESET and remains at logic low, the device will be

/RESET

5

I

reset

Voltage on /RESET/Vpp must not exceed Vdd during normal

 

 

 

 

 

 

mode

 

 

 

 

 

 

 

External Timer/Counter input

TCC, TCCA,

4, 8,

I

TCC is defined by CONT <5>

TCCA is defined by IOC80 <1>

TCCB, TCCC

9, 10

 

TCCB is defined by IOC90 <5>

 

 

 

 

 

 

TCCC is defined by IOC90 <1>

ADC0~ADC3

2, 3,

I

Analog to Digital Converter

18, 19

Defined by ADCON (R9) <1:0>

 

 

IR OUT

14

O

IR mode output pin, capable of driving and sinking

current=20mA when the output voltage drops to 0.7Vdd and

 

 

 

rise to0.3Vdd at Vdd=5V.

VREF

4

I

External reference voltage for ADC

Defined by ADCON (R9) <7>

 

 

 

/INT

7

I

External interrupt pin triggered by a falling or rising edge

Defined by CONT <7>

 

 

 

VDD

15

Power supply

VSS

6

Ground

4 •

Product Specification (V1.2) 05.18.2007

 

(This specification is subject to change without further notice)

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IBM EM78P259N/260N manual EM78P260NP/M/KM