HC705C9
#HC705C9
#8-bit microcontroller
#M68HC05 family
#HCMOS architecture
#embedded control
#EPROM
#RAM
#I/O pins
#SCI
#SPI
Here is a detailed HTML-formatted technical summary for the HC705C9 component:
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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
Peripheral Features
Serial Communications Interface (SCI)
- Full-duplex operation
- Programmable baud rate
- 8- or 9-bit data format
- Wakeup feature for multiprocessor communication
Serial Peripheral Interface (SPI)
- Full-duplex synchronous transfer
- Master or slave operation
- Programmable clock polarity and phase
- Maximum bit rate = 1/4 system clock
Timer System
- 16-bit free-running counter
- Input capture with programmable edge detection
- Output compare with programmable output action
- Timer overflow interrupt
Development Support
- On-chip EPROM programming capability
- Bootloader mode for field programming
- Extensive development tool support
- Compatible with M68HC05 family development systems
Ordering Information
| Part Number | Package | Temperature Range |
|---|---|---|
| HC705C9P | 40-pin PDIP | -40°C to +85°C |
| HC705C9FN | 44-pin PLCC | -40°C to +85°C |
| HC705C9FU | 44-pin QFP | -40°C to +85°C |
12CE519
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