UPD784936A View Datasheet(PDF) - NEC => Renesas Technology

Part Name

Description

Manufacturer

UPD784936A

16-BIT SINGLE-CHIP MICROCONTROLLERS

NEC => Renesas Technology 

µPD784935A,784936A,784937A,784938A

FUNCTION LIST

(1/2)

Item

Part Number

µPD784935A

µPD784936A

µPD784937A

µPD784938A

Number of basic instructions (mnemonics) 113

General-purpose registers

8 bits × 32 registers × 8 banks, or 16 bits × 8 registers × 8 banks (memory map)

Minimum instruction execution time

320 ns/636 ns/1.27 µs/2.54 µs (@6.29 MHz operation)

160 ns/320 ns/636 ns/1.27 µs (@12.58 MHz operation)

Internal memory ROM

96 KB

128 KB

192 KB

256 KB

RAM

5120 bytes

6656 bytes

8192 bytes

10496 bytes

Memory space

1 MB with program and data spaces combined

I/O port

Total

80 pins

Input

8 pins

I/O

72 pins

Pins with LED direct drive output

ancillary Transistor direct drive

functionNote

N-ch open drain drive

24 pins

8 pins

4 pins

Real-time output port

4 bits × 2, or 8 bits × 1

IEBus controller

Internal (simple version)

Timer/counter

Timer/event counter 0: Timer counter × 1

(16 bits)

Capture register × 1

Compare register × 2

Pulse output possible

• Toggle output

• PWM/PPG output

• One-shot pulse output

Timer/event counter 1:

(16 bits)

Timer counter × 1

Capture register × 1

Capture/compare register × 1

Compare register × 1

Real-time output port

Timer/event counter 2:

(16 bits)

Timer counter × 1

Capture register × 1

Capture/compare register × 1

Compare register × 1

Pulse output possible

• Toggle output

• PWM/PPG output

Timer 3 (16 bits):

Timer counter × 1

Compare register × 1

Watch timer

Generates interrupt request at 0.5-second intervals (internal watch clock oscillator

provided)

Main clock (12.58 MHz) or watch clock (32.7 kHz) selectable as input clock

Clock output

Selectable from fCLK, fCLK/2, fCLK/4, fCLK/8, or fCLK/16 (also usable as 1-bit output port)

PWM output

12-bit resolution × 2 channels

Serial interface

UART/IOE (3-wire serial I/O): 2 channels (with internal baud rate generator)

CSI (3-wire serial I/O):

2 channels

A/D converter

8-bit resolution × 8 channels

Watchdog timer

1 channel

ROM correction function

Internal (4 points of correction addresses can be set.)

External expansion function

Provided (up to 1 MB)

Note Pins with ancillary functions are included in the I/O pins.

4

Data Sheet U13572EJ2V0DS

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