●These devices can address up to 64 Kbytes of external program/data memory.
●The Intel 87C51FA/8XC51FB/8XC51FC is a single-chip control oriented microcontroller which is fabricated on Intel"s reliable CHMOS III-E technology. The Intel 83C51FA/80C51FA is fabricated on CHMOS III technology. Being a member of the MCSÉ 51 controller family, the 8XC51FA/8XC51FB/8XC51FC uses the same powerful instruction set, has the same architecture, and is pin-for-pin compatible with the existing MCS 51 controller products. The 8XC51FA/8XC51FB/8XC51FC is an enhanced version of the 8XC52/8XC54/8XC58. Its added features make it an even more powerful microcontroller for applications that require Pulse Width Modulation, High Speed I/O and up/down counting capabilities such as motor control.
●For the remainder of this document, the 8XC51FA, 8XC51FB, 8XC51FC will be referred to as the 8XC51FX, unless information applies to a specific device.
●■ High Performance CHMOS EPROM/ROM/CPU
●■ 12/24/33 MHz Operation
●■ Three 16-Bit Timer/Counters
●■ Programmable Counter Array with:
● - High Speed Output,
● - Compare/Capture,
● - Pulse Width Modulator,
● - Watchdog Timer Capabilities
●■ Up/Down Timer/Counter
●■ Three Level Program Lock System
●■ 8K/16K/32K On-Chip Program Memory
●■ 256 Bytes of On-Chip Data RAM
●■ Improved Quick Pulse Programming Algorithm
●■ Boolean Processor
●■ 32 Programmable I/O Lines
●■ 7 Interrupt Sources
●■ Four Level Interrupt Priority
●■ Programmable Serial Channel with:
● - Framing Error Detection
● - Automatic Address Recognition
●■ TTL Compatible Logic Levels
●■ 64K External Program Memory Space
●■ 64K External Data Memory Space
●■ MCSÉ 51 Controller Compatible Instruction Set
●■ Power Saving Idle and Power Down Modes
●■ ONCE (On-Circuit Emulation) Mode
●■ Extended Temperature Range Except for 33 MHz Offering (b40§C to a85§C)
