UPD17P136ACT datasheet(21/292 Pages) NEC

21 / 292 page

CHAPTER 1 GENERAL DESCRIPTION

1.1 FUNCTION LIST

Item

µPD17134A

µPD17135A

µPD17136A

µPD17137A

µPD17P136A µPD17P137A

ROM configuration

Mask ROM

One-time PROM

ROM capacity

2KB (1024 ! 16 bits)

4KB (2048 ! 16 bits)

RAM capacity

112 ! 4 bits

Stack

Address stack

× 5, interrupt stack × 3

Number of I/O port

• I/O

: 20

• Input only

: 1

• Sensor inputNote : 1

A/D converter

8-bit resolution

× 4 channels (shared with port pin), absolute precision ± 1.5 LSB or less

Timer

3 channels

• 8-bit timer counter

: 2 channels (16-bit timer 1 channel applicable)

• 7-bit basic interval timer : 1 channel (watchdog timer applicable)

Serial interface

1 channel (3 wires)

AC zero cross detection

Provided (can be used in application circuit at VDD = 5 V

± 10%)

function

Interrupt

• Nesting by hardware (up to 3 levels)

Rising edge detection

• External interrupts (INT) : 1

Falling edge detection

Selectable

Both rising and falling edges detection

• Timer 0 (TM0)

• Internal interrupts

: 1

• Timer 1 (TM1)

• Basic interval timer (BTM)

• Serial interface (SIO)

System clock

Ceramic

oscillation

Instruction

µs2 µs8 µs2 µs8 µs2 µs

execution time

at fX = 2 MHz

at fX = 8 MHz

at fX = 2 MHz

at fX = 8 MHz

at fX = 2 MHz

at fX = 8 MHz

Standby

HALT, STOP

Power-on/

Available (effective only for application circuit with VDD = 5 V

± 10 %, 400 kHz to 4 MHz)

power-down reset

Supply voltage

VDD = 2.7 to 5.5 V (5 V

±10 % when using A/D converter)

Package

28-pin plastic shrink DIP, 28-pin plastic SOP

Note

The INT pin can be used as an input pin (sense input) when the external interrupt function is not used. The

sense input function is to read the status of the pin by using the INT flag of a control register, instead of a port

Caution The PROM model is highly compatible with the mask ROM model in terms of functions but its internal

ROM circuit and electrical characteristics are partially different from those of the mask ROM model.

To replace the PROM model with the mask ROM model, thoroughly evaluate the application by using

a sample of the mask ROM model.

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