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8048L
SPECIAL LOW POWER CONSUMPTION SINGLE
COMPONENT 8-BIT MICROCOMPUTER
•
Typical Power Consumption 100mW
•
1K x 8 ROM
64x8RAM
•
Typical Standby Power 10mW
271/0
Lines
Voo minimum
of
2.2V
•
Interval Timer/Event Counter
•
8-Bit CPU, ROM, RAM,
I/O
in Single
•
Easily Expandable Memory and
I/O
Package
•
Compatible with 8080/8085 Series
•
4.17
~sec
Instruction Cycle.
All
Instructions 1
or
2 Cycles.
Peripherals
•
Two Single Level Interrupts
•
Over
90
Instructions:
70%
Single Byte
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 1 K 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
XTAL 1
T1
PORT
01
XTAL 2
P27
RESET
P2S
ss
P25
PORT
INT
P2'
e 2
EA
P17
Rll
P1S
PSEN
P15
WR
P1'
ALE
P13
8048L
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
6-8