AMIS14055-xxx
J1850 8-Bit 68HC05 Microcontroller
(Formally HIP7030A2)
1.0 Features
• Fully Supports VPW Specifications of SAE J1850 Standard
for Class B Data Communications Network Interface
• On-Chip Memory
• 176 Bytes of RAM
• 2110 Bytes of User ROM
• 13 Bidirectional I/O Lines
• 16-Bit Timer with Capture and Compare Registers
• Serial Peripheral Interface (SPI) System
• Watchdog Timer and Slow Clock Detect
• 10MHz Operating Frequency (5.0MHz Internal Bus
Frequency) at 5V
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Built-In-Test Bootstrap Mode with 242 Bytes of ROM
Two Channel Analog Comparator
On-Chip Oscillator Amplifier
8-Bit CPU Architecture
Power-Saving STOP, WAIT and Data Retention Modes
Full -40°C to 125°C Operating Range
Single 3.0V to 6.0V Supply
28 Lead Dual-In-Line and Small Outline Plastic Packages
2.0 Related Literature
• TB363, “Guidelines for Handling and Processing Moisture
Sensitive Surface Mount Devices (SMDs)”
3.0 Software Features
• Standard 68HC05 Instruction Set
• True Bit Manipulation
• Addressing Modes Include Indexed Addressing
- Memory Mapped I/O
4.0 Product Description
The AMIS14055 HCMOS Microcomputer is a member of the
CDP68HC05 family of low-cost single-chip microcomputers. The
integrated hardware functions provide the system designer with
a complete set of building blocks for implementing a “Class B”
multiplexed communications network interface, which fully
conforms to the VPW Multiplexed Wiring protocol specified in
SAE Recommended Practice J1850. This 8-bit microcomputer
unit (MCU) contains an onchip oscillator, CPU, 176 bytes of RAM,
2110 bytes of user ROM, 13 I/O lines, a J1850 Variable Pulse
Width Symbol Encoder/Decoder (VPW SENDEC) system, a Serial
Peripheral Interface (SPI) system, a two channel analog
Comparator, a Watchdog Timer, a Slow Clock Detect, and a 16-
bit Timer. The static HCMOS design allows operation at input
frequencies up to 10MHz (5MHz internal clock).
AMI Semiconductor
www.amis.com
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