Chapter 1 Outline ( Μ Pd78014 Subseries); Features - NEC 78014Y Series User Manual

8-bit single-chip microcontrollers

Table of Contents

• On-chip large-capacity ROM and RAM

Notes 1. 8, 16, 24, or 32 Kbytes can be selected with the memory size switching register (IMS).

2. 512 or 1024 bytes can be selected with IMS.

External memory expanded space: 64 Kbytes

Minimum instruction execution time changeable from high speed (0.4 µ s: @ 10.0 MHz with main system clock)

to ultra-low speed (122 µ s: @ 32.768 KHz with subsystem clock)

Instruction set suitable for system control

• Bit manipulation can be enabled in all the address space

• Multiplication/division instruction

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53 I/O ports (N-ch open-drain: 4)

8-bit resolution A/D converter: 8 channels

• Low-voltage operation (AV

Serial interface: 2 channels

• 3-wire serial I/O, SBI, 2-wire serial I/O mode: 1 channel

• 3-wire serial I/O mode (Automatic transmit/receive function): 1 channel

Timer: 5 channels

• 16-bit timer/event counter : 1 channel

• 8-bit timer/event counter

• Watch timer

• Watchdog timer

14 vectored interrupt sources

2 test inputs

2 types of on-chip clock oscillator (main system clock and subsystem clock)

Power supply voltage: 2.7 to 6.0 V

CHAPTER 1 OUTLINE ( µ PD78014 Subseries)

Program Memory

= 2.7 to 6.0 V: operable at the same voltage range as CPU)

: 2 channels

Internal high-speed RAM