Chapter 1
Overview
I - 2
Overview
1-1
Overview
1-1-1
Overview
The MN101C series of 8-bit single-chip microcomputers incorporate multiple types of peripheral func-
tions. This chip series is well suited for camera, VCR, MD, TV, CD, LD, printer, telephone, home automa-
tion, pager, air conditioner, PPC, remote control, fax machine, musical instrument, health care and other
applications.
This LSI brings to embedded microcomputer applications flexible, optimized hardware configurations
and a simple efficient instruction set. This LSI has an internal 32/48 KB of ROM and 2 KB of RAM.
Peripheral functions include 5 external interrupts, 15 internal interrupts including NMI, 8 timer counters,
2 sets of serial interfaces, A/D converter, watchdog timer, synchronous output function, buzzer output,
and remote control output. The configuration of this microcomputer is well suited for application as a
system controller in a camera, a sphygmomanometer, CD player, or MD.
With two oscillation system (max.20 MHz/32 kHz) contained on the chip, the system clock can be
switched to high frequency input (high speed mode), or to low frequency input (low speed mode).
The system clock is generated by dividing the oscillation clock. The best operation clock for the system
can be selected by switching its frequency by software. LCD driver power supply is separated from this
microcontroller's power supply, and it can be used as VDD
≤VLC1. But it cannot be used as VDD>VLC1.
A machine cycle (min. instructions execution) is 250 ns when fosc is 8 MHz, and when fosc is 20 MHz,
a machine cycle is 100 ns. Two types of packages are available, 80-pin LQFP and 84-pin QFP.
1-1-2
Product Summary
This manual describes the following models of the MN101C54 series. These products have identical
functions.
Model
ROM Size
RAM Size
Classification
MN101C54C
48 KB
2 KB
Mask ROM version
MN101CF54D
64 KB
2 KB
Flash version *
Table 1-1-1
Product Summary
MN101CP54C
48 KB
2 KB
EPROM version
*Under development
MN101C54A
32 KB
2 KB
Mask ROM version