MB89557A View Datasheet(PDF) - Fujitsu

Part Name

Description

Manufacturer

MB89557A

8-bit Proprietary Microcontroller

Fujitsu 

MB89550A Series

(Continued)

• Dual-clock control system

• Main clock 12.5 MHz maximum : (Four speed settings available, oscillation halts in sub-clock mode)

• Sub-clock 32.768 kHz : (Operation clock for sub-clock mode)

• 11 timer systems

• 8/16-bit timer counter 1 (square wave output, 2-channel output switching available)

• 8/16-bit timer counter 2 (square wave output, 2-channel output switching available)

• 16-bit timer counter (also functions as event counter)

• 8-bit PWM timer (8-bit PWM timer × 2 channels or PPG timer × 1 channel, includes event counter function)

• 8-bit PWC timer (8-bit PWC timer × 1 channel)

• 6-bit PPG timer (6-bit PPG timer × 1 channel)

• 21-bit timebase timer

• Clock prescaler (17-bit)

• UART/serial interface

• UART/SIO switching

• UART

• Clock synchronous/asynchronous switching available

• 10-bit A/D converter

• 10-bit A/D × 8 channels

• 8-bit D/A converter

• 8-bit D/A × 2 channels

• External interrupts

• Eight independent inputs can be used for recovery from low-power consumption modes (selection of rising,

falling, or both edge detection functions).

• Eight independent inputs can be used for recovery from low-power consumption modes (L level detection

function included).

• Clock output functions

• High speed clock signal multiplied by 2 available as output from HCLK pin.

• Low speed clock pulse output available from LCLK pin.

• LCD controller driver

• 32SEG × 4COM (maximum 128 pixels)

8 dedicated to segment output only

8 for port or segment use

16 for port, segment, or static use

• Built-in step-up power supply for driving LCD (optionally available)

• Low-power consumption modes (standby modes)

• Stop mode (all oscillations halt in sub-clock mode, current consumption falls to almost zero)

• Sleep mode (the CPU stops to reduce current consumption to approximately 1/3 of normal)

• Clock mode (all operations other than the clock prescaler halt, current consumption is very low)

• Sub clock mode (systems operate on sub-clock signals)

• Maximum 66 I/O ports

• General-purpose I/O ports (N-ch open drain) : 4

• General-purpose I/O ports (N-ch open drain) : 24

• [also function as LCD ports, with restrictions]

• General purpose I/O ports (CMOS) : 38

2

Share Link: