3886 datasheet(27/380 Pages) RENESAS

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HARDWARE

1-2

3886 Group User’s Manual

DESCRIPTION

The 3886 group is the 8-bit microcomputer based on the 740 fam-

ily core technology.

The 3886 group is designed for controlling systems that require

analog signal processing and include two serial I/O functions, A-D

converters, D-A converters, system data bus interface function,

watchdog timer, and comparator circuit.

The multi-master I2C-BUS interface can be added by option.

FEATURES

qBasic machine-language instructions ...................................... 71

qMinimum instruction execution time .................................. 0.4

µs

(at 10 MHz oscillation frequency)

qMemory size

ROM ................................................................. 32K to 60K bytes

RAM ............................................................... 1024 to 2048 bytes

qProgrammable input/output ports ............................................ 72

qSoftware pull-up resistors ................................................. Built-in

qInterrupts ................................................. 21 sources, 16 vectors

(Included key input interrupt)

qTimers ............................................................................. 8-bit ✕ 4

qSerial I/O1 .................... 8-bit ✕ 1(UART or Clock-synchronized)

qSerial I/O2 ................................... 8-bit ✕ 1(Clock-synchronized)

qPWM output circuit ....................................................... 14-bit ✕ 2

qBus interface .................................................................... 2 bytes

qI2C-BUS interface (option) ........................................... 1 channel

qA-D converter ............................................... 10-bit ✕ 8 channels

qD-A converter ................................................. 8-bit ✕ 2 channels

qComparator circuit ...................................................... 8 channels

qWatchdog timer ............................................................ 16-bit ✕ 1

qClock generating circuit ..................................... Built-in 2 circuits

(connect to external ceramic resonator or quartz-crystal oscillator)

qPower source voltage

In high-speed mode .................................................. 4.0 to 5.5 V

(at 10 MHz oscillation frequency)

In middle-speed mode ........................................... 2.7 to 5.5 V(*)

(at 10 MHz oscillation frequency)

In low-speed mode ............................................... 2.7 to 5.5 V (*)

(at 32 kHz oscillation frequency)

(*: 4.0 to 5.5 V for Flash memory version)

qPower dissipation

In high-speed mode .......................................................... 40 mW

(at 10 MHz oscillation frequency, at 5 V power source voltage)

In low-speed mode ............................................................ 60

µW

(at 32 kHz oscillation frequency, at 3 V power source voltage)

qMemory expansion possible (only for M38867M8A/E8A)

qOperating temperature range .................................... –20 to 85°C

qSupply voltage (at programming/erasing) ...... VCC = 5 V ± 10 %

qProgram/Erase voltage ............................... VPP = 11.7 to 12.6 V

qProgramming method ...................... Programming in unit of byte

qErasing method

Batch erasing ........................................ Parallel/Serial I/O mode

Block erasing .................................... CPU reprogramming mode

qProgram/Erase control by software command

qNumber of times for programming/erasing ............................ 100

qOperating temperature range (at programming/erasing)

..................................................................... Normal temperature

sNotes

1. The flash memory version cannot be used for application em-

bedded in the MCU card.

2. Power source voltage Vcc of the flash memory version is 4.0

to 5.5 V.

APPLICATION

Household product, consumer electronics, communications, note

book PC, etc.

DESCRIPTION/FEATURES

3886 Datasheet(PDF) 27 Page - Renesas Technology Corp

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