Intel mcs-48 manual 18049/8039, Mask Programmable ROM External ROM or Eprom MHz Operation

NEW HIGH PERFORMANCE

18049/8039

SINGLE COMPONENT 8·BITMICROCOMPUTER

*8049 Mask Programmable ROM

*8039 External ROM or EPROM

*6 MHz Operation

•8·BItCPU, ROM, RAM, 110 In Single Package

•Single 5V::t 10% Supply

•2.5 ILsec Cycle; All Instructions

1 or 2 Cycles

•Over 90 Instructions: 70% Single Byte

•Pin Compatible with 804818748

•2K)( 8 ROM 128)( 8 RAM 27110 LInes

•Interval Timer/Event Counter

•Easily Expandable Memory and I/O

•Compatible with MCS Memory and I/O

•Single Level Interrupt

The Intel@> 18049/8039 is totally self-sufficient 8-bit parallel computer fabricated on a single silicon chip using Intel's N-channel silicon gate MOS process.

The 8049 contains a 2K x 8 program memory, a 128 x 8 RAM data memory, 27 110 lines, and an 8-blt timer/counter In addition to on-board oscillator and clock circuits. For systems that require extra capability, the 8049 can be expanded using standard memories and MeS-80TM/MeS-85™peripherals. The 8039 is the equivalent of an 8049 without program memory.

To reduce development problems to a minimum and provide maximum flexibility, two Interchangeable pin-compatible versions of this single component microcomputer exist: the 8049 with factory-programmed mask ROM program memory for low-cost high volume production, and the 8039 without program memory for use with external program

memories In prototype and preproduction systems. .

This microprocessor is designed to be an efficient controller as well as an arithmetic processor. The 8049 has exten- sive bit handling capability as well as facilities for both binary and BeD arithmetic. Efficient use of program memory results from an instruction set consisting mostly of single byte instructions and no instructions over two bytes in length.

PIN CONFIGURATION LOGIC SYMBOL BLOCK DIAGRAM

18039

18049

INTeL CORPORATION ASSUMES NO RESPONSIBILITY FOR THE USE OF ANY CIRCUITRY OTHER THAN CIRCUITRY EMBODIED IN AN INTeL PRODUCT. NO OTHER CIRCUIT PATENT LICENSES ARE IMPLIED.

olNTEL CORPORATION, 1979 AFN-00737-01

6-41