M44C588

Features:

9K x 8-bit application ROM
512 x 4-bit RAM (256 x 4-bit direct accessible)
Bitwise maskable prioritised interrupts
Up to 8 external and 5 internal interrupt sources
Up to 36 I/O lines bit or nibblewise I/O
High drive port (4 mA, V_DD = 2.2 V)
2 x 8-bit multifunction timer/counters
32-kHz on-chip oscillator with 2 programmable interval timer / prescaler
8-bit synchronous serial I/O for 2- /3-wire communication
4-MHz crystal, 4-MHz ceramic resonator, external resistor or fully integrated RC oscillator as options


Specifications

Parameters	Symbol	Value	Unit
Supply voltage	VDD	-0.3 to +6.5	V
Input voltage(on any pin)	VIN	VSS -0.3VINVDD +0.3	V
Output short circuit duration	tshort	indefinite	s
Operating temperature range	Tamb	-40 to +85
Storage temperature range	Tstg	-65 to +130
Thermal resistance(DIP40)	RthJA	110	K/W
Soldering temperature(t10s)	Tsld	260

Stresses greater than those listed under absolute maximum ratings may cause permanent damage to the device. This is a stress rating only and functional operation of the device at any condition above those indicated in the operational section of these specification is not implied. Exposure to absolute maximum rating condition for an extended period may affect device reliability. All inputs and outputs are protected against high electrostatic voltages or electric fields. However, precautions to minimize built-up of electrostatic charges during handling are recommended. Reliability of operation is enhanced if unused inputs are connected to an appropriate logic voltage level (e.g. V_DD).


Description

The M44C588 is a member of the TEMIC family of 4-bit single chip microcontrollers. It contains ROM, RAM, up to 32 digital I/O pins, 8-bit synchronous serial I/O, 32 LCD segment drivers, 8 maskable external interrupt sources, 5 maskable internal interrupts, a watchdog timer, 32-kHz oscillator with programmable interval timer, 2 x 8-bit multifunction timer/counter and a versatile on-chip system clock generation module.