HD404868 View Datasheet(PDF) - Renesas Electronics

Part Name

Description

Manufacturer

HD404868

Low-Voltage AS Microcomputers with On-Chip LCD Circuit

Renesas Electronics 

HD404889/HD404899/HD404878/HD404868 Series

Features

• 46 I/O pins (HD404889/HD404899/HD404878 Series)

41 I/O pins (HD404868 Series)

Large-current I/O pins (source: 10 mA max.):4

Large-current I/O pins (sink: 15 mA max.): 8 (HD404889/HD404899/HD404878 Series)

6 (HD404868 Series)

LCD segment multiplexed pins:16

Analog input multiplexed pins: 6 (HD404889 and HD404899 Series)

4 (HD404868 Series)

• Four Timer/counters

8-bit timer: 2 (HD404889/HD404899/HD404878 Series)

1 (HD404868 Series)

16-bit timer:1 (Can also be used as two 8-bit timer)

• 8-bit input capture circuit (HD404889/HD404899/HD404878 Series)

• Two timer outputs (including PWM out-put)

• Two event counter inputs (edge-programmable) (HD404889/HD404899/HD404878 Series)

One event counter input (edge-programmable) (HD404868 Series)

• Clock-synchronous 8-bit serial interface

• A/D converter

6 channels × 8-bit (HD404889 Series)

6 channels × 10-bit (HD404899 Series)

4 channels × 10-bit (HD404868 Series)

• LCD controller/driver (32 segments × 4 commons) (HD404889/HD404899/HD404878 Series)

(24 segments × 4 commons) (HD404868 Series)

• On-chip oscillators

 Main clock (ceramic resonator, crystal resonator, or external clock operation possible)

 Sub-clock (32.768 kHz crystal resonator)

• Interrupts

External: 3 (including one edge-programmable)

Internal : 6 (HD404889 and HD404899 Series)

: 5 (HD404878 and HD404868 Series)

• Subroutine stack up to 16 levels, including interrupts

• Four Low-power dissipation modes

• Module standby (timers, serial interface, A/D converter)

• System clock division software switching (1/4 or 1/32)

• Inputs for return from stop mode (wakeup): 4

• Instruction execution time

Min. 0.89 µs (fOSC = 4.5 MHz)

• Operation voltage

1.8 V to 5.5 V

Rev.6.00, Sep.08.2003, page 2 of 197

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