TN87C54

87C54 87C54-20 CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER WITH 16 KBYTES USER PROGRAMMABLE EPROM Automotive Y Extended Automotive Temperature Range ( b 40 C to a 125 C Ambient) High Performance CHMOS EPROM Three 16-Bit Timer Counters One-to-Three Level Program Data Lock System 16K On-Chip EPROM ROM 256 Bytes of On-Chip Data RAM Quick Pulse Programming Algorithm Boolean Processor 32 Programmable I O Lines 7 Interrupt Sources Y Y Y Y Programmable Serial Channel with Framing Error Detection Automatic Address Recognition TTL and CMOS Compatible Logic Levels 64K External Program Memory Space 64K External Data Memory Space MCS -51 Compatible Instruction Set Power Saving Idle and Power Down Modes ONCE (On-Circuit Emulation) Mode RFI Reduction Mode Available in 12 MHz 16 MHz and 20 MHz Versions Available in PLCC and DIP Packages (See Packaging Spec Order 231369) Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y MEMORY ORGANIZATION PROGRAM MEMORY Up to 16 Kbytes of the program memory can reside in the on-chip EPROM The device can also address up to 64K of program memory external to the chip DATA MEMORY This microcontroller has a 256 x 8 on-chip RAM In addition it can address up to 64 Kbytes of external data memory The Intel 87C54 is a single-chip control-oriented microcontroller which is fabricated on Intel’s reliable CHMOS EPROM technology Being a member of the MCS-51 family the 87C54 uses the same powerful instruction set has the same architecture and is pin-for-pin compatible with the existing ...