HC705C9 Datasheet | Next Electromics

HC705C9

#HC705C9 #8-bit microcontroller #M68HC05 family #HCMOS architecture #embedded control #EPROM #RAM #I/O pins #SCI #SPI

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HC705C9 Technical Summary

Overview

The HC705C9 is an 8-bit microcontroller from the M68HC05 family, featuring an HCMOS architecture. It combines a high-performance CPU core with integrated peripherals, memory, and I/O capabilities in a single package. This device is designed for embedded control applications requiring robust performance and low power consumption.

Key Features

8-bit M68HC05 CPU core
Operating frequency up to 4 MHz
16 KB of on-chip EPROM (with security feature)
352 bytes of RAM
31 bidirectional I/O pins
Serial Communications Interface (SCI)
Serial Peripheral Interface (SPI)
16-bit capture/compare timer
Computer Operating Properly (COP) watchdog timer
Low-power wait and stop modes
Operating voltage: 3.0V to 5.5V

Applications

Industrial control systems
Automotive electronics
Consumer appliances
Embedded control systems
Peripheral controllers
Sensor interfaces

Electrical Characteristics

Parameter	Min	Typ	Max	Unit
Supply Voltage (VDD)	3.0	5.0	5.5	V
Operating Current (4MHz)	-	10	15	mA
Standby Current (Stop Mode)	-	5	50	μA
Input High Voltage	0.7VDD	-	VDD	V
Input Low Voltage	0	-	0.3VDD	V
Output High Current (sink)	-	-	10	mA
Output Low Current (source)	-	-	10	mA

Package Information

The HC705C9 is available in multiple package options:

40-pin PDIP (Plastic Dual In-line Package)
- Dimensions: 52.32 x 13.97 mm
- Pin spacing: 2.54 mm
44-pin PLCC (Plastic Leaded Chip Carrier)
- Dimensions: 16.51 x 16.51 mm
- Lead pitch: 1.27 mm
44-pin QFP (Quad Flat Package)
- Dimensions: 10 x 10 mm
- Lead pitch: 0.8 mm

Memory Organization

EPROM: 16KB (including 64 bytes for interrupt vectors)
RAM: 352 bytes
Memory Map:
- 0x0000-0x00FF: I/O and control registers
- 0x0100-0x017F: RAM
- 0x0180-0x1FFF: User EPROM
- 0x1FF0-0x1FFF: Boot ROM and vectors