HIGH-PERFORMANCE CHMOS MICROCONTROLLER

The 8XC151SA/SB has an MCS 51 microcontroller compatible instructon set. It is available in 40-pin PDIP and 44-lead PLCC compatible with the MCS 51 microcontroller. The 8XC151SA/SB has 256 bytes of on-chip RAM and is available in 8/16 Kbytes of on-chip ROM/OTPROM or without ROM/OTPROM. A variety of new features such as programmable wait states, page mode and extended ALE can be selected using the new user-programmable configuration.

■ MCSé 51 Microcontroller Compatible Instruction Set

■ Pin Compatible with 44-lead PLCC and 40-lead PDIP MCS 51 Sockets

■ Fast Instruction Pipeline

■ 16-bit Internal Code Fetch

■ 8-bit, Min 2-clock External Code Fetch in Page Mode

■ User-selectable Configurations:

— External Wait States (0-3 wait states)

— Page Mode

■ 64K External Code Memory Space

■ 64K External Data Memory Space

■ ROM/OTPROM Options: 8 Kbytes (SA), 16 Kbytes (SB) or without ROM/OTPROM

■ 256 Bytes On-Chip RAM

■ Power Management

— Idle Mode

— Powerdown Mode

■ 32 Programmable I/O Lines

■ Seven Maskable Interrupt Sources with Four Programmable Priority Levels

■ Three Flexible 16-bit Timer/counters

■ Hardware Watchdog Timer

■ Programmable Counter Array

— High-speed Output

— Compare/Capture Operation

— Pulse Width Modulator

— Watchdog Timer

■ Programmable Serial I/O Port

— Framing Error Detection

— Automatic Address Recognition

■ High-performance CHMOS Technology

■ Static Standby to 16-MHz Operation

■ Package Options (PDIP, PLCC)