MC9S12B256MFUE数据手册恩XP中文资料规格书

描述 Description

Designed for automotive multiplexing applications, members of the MC9S12B family of 16- bit flash-based MCUs are fully pin compatible, allowing you to choose between different memory and peripheral options for scalable designs.
The S12B MCU manages the following via a lite integration module (LIM):
System resource mapping
Clock generation
Interrupt control
Bus interfacing
The MC9S12B family has full 16-bit data paths throughout; however, the external bus can operate in an 8-bit narrow mode so single 8-bit wide memory can be interfaced for lower cost systems.
In addition to the I/O ports available in each module, up to 22 I/O ports are available with Wake-Up capability from STOP or WAIT mode.

特性 Features

16-bit HCS12 CPU
• Upward compatible with M68HC11 instruction set
•PLL circuit
• Interrupt stacking and programmer's model identical to M68HC11
• Instruction pipe
• Enhanced indexed addressing
• Multiplexed External Bus
• Analog-to-Digital Converter
• One 1M bit per second, CAN 2.0 A, B software compatible module
• Up to 256K byte Flash EEPROM
• Up to 2K byte EEPROM
• Up to 8K byte RAM