Intel mcs-48 manual PIN Configuration Logic Symbol Block Diagram, Rll

8048L

SPECIAL LOW POWER CONSUMPTION SINGLE COMPONENT 8-BIT MICROCOMPUTER

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Typical Power Consumption 100mW

Typical Standby Power 10mW Voo minimum of 2.2V

8-Bit CPU, ROM, RAM, I/O in Single Package

4.17~sec Instruction Cycle. All Instructions 1 or 2 Cycles.

Over 90 Instructions: 70% Single Byte

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1K x 8 ROM 64x8RAM 271/0 Lines

Interval Timer/Event Counter

Easily Expandable Memory and I/O

Compatible with 8080/8085 Series

Peripherals

Two Single Level Interrupts

The Intel® 8048L is a totally self-sufficient 8-bit parallel computer fabricated on a single silicon chip using Intel's advanced N-channel silicon gate HMOS process, using special techniques to reduce operating and standby power consumption. The 8048L contains a 1K X 8 program memory, a 64 X 8 RAM data memory, 271/0 lines, and an 8-bit timer/counter in addition to on-board oscillator and clock circuits. For systems that require extra capability the 8048L can be expanded using standard memories and MCS-80™/MCS-8S'" peripherals. The 8048L can be used with external ROM AND RAM.

To reduce development problems to a minimum and provide maximum flexibility, a logically and functionally pin compatible version of the 8048L with UV-erasable user-programmable EPROM program memory is available. The 8748 will emulate the 8048L with greater power and other minor differences.

This microcontroller is designed to be an efficient controller as well as an arithmetic processor. The 8048L has extensive bit handling capability as well as facilities for both binary and BCD 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
TO	Vee		PORT
XTAL 1	T1
			01
	P27
XTAL 2
RESET	P2S
ss	P25		PORT
INT	P2'		e 2
EA	P17
Rll	P1S
PSEN	P15
WR	P1'	8048L
ALE	P13
DBo	P12
DB,	P11
DB2	P10
DB3	VDD
DB.	PROG
DB5	P23
DBS	P22	BUS
DB7	P21
VSS	P20

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

©Intel Corporation 1980 AFN-01591A-01

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