Ultra-low power microcontroller - EM Microelectronic
Description
R
EM MICROELECTRONIC - MARIN SA
EM6620
Ultra Low Power Microcontroller with 4x8 LCD Driver
Features
• Low Power - 2.
1 µA active mode, LCD On - 0.
5 µA standby mode, LCD Off - 0.
1 µA sleep mode @ 1.
5V, 32kHz, 25°C Low Voltage - 1.
2 to 3.
6 V SVLD - metal mask programmable (2.
0V) ROM - 1280 × 16 bits RAM - 64 × 4 bits 2 clocks per instruction cycle 72 basic instructions Oscillation supervisor Timer watchdog (2 sec) Max.
8 inputs ; port A, port B max.
4 outputs ; port B LCD 8 segments, 3 or 4 times multiplexed Universal 10-bit counter, PWM, event counter Prescaler down to 1 Hz (crystal = 32 KHz) 1/1000 sec, 12 bit binary coded decimal counter with hard or software start/stop function Frequency output 1Hz, 2048 Hz, 32 KHz, PWM 7 internal interrupt sources (BCD counter, 2×10-bit counter, 3× prescaler, SVLD) 5 external interrupt sources (port A, compare) Figure 1.
Architecture
• • • • • • • • • • • • • • • • • •
Description
The EM6620 is an advanced single chip CMOS 4bit microcontroller.
It contains ROM, RAM, power on reset, watchdog timer, oscillation detection circuit, 10 bit up/down counter, Millisecond counter, prescaler, voltage level detector (SVLD), compare input, frequency output, LCD driver and several clock functions.
The low voltage feature and low power consumption make it the most suitable controller for battery, stand alone and mobile equipment.
The EM6620 is manufactured using EM Microeletronic’s Advanced Low Power (ALP) CMOS Process.
Figure 2.
Pin Configuration
Typical Applications
• • • • • • • • • Timing device Medical applications Domestic appliance Timer / sports timing devices Safety and security devices Automotive controls with display Measurement equipment Interactive system with display Bicycle computers
Copyright © 2005, EM Microelectronic-Marin SA
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EM6620
EM6620 at a glance
• Power Supply - Low voltage low power architecture including internal voltage regulator - 1.
2 .
.
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3.
6 V battery voltage - 2.
1 µA in activ...
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