EM6521 Datasheet, PDF (1/68 Pages) List of Unclassifed Manufacturers – 4 bit Microcontroller

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EM MICROELECTRONIC - MARIN SA
EM6521
MFP version of EM6621
Ultra Low Power Microcontroller with 4x20 LCD Driver
Features
• Low Power - 11 µA active mode, LCD On
- 1.8 µA standby mode, LCD Off
- 0.1 µA sleep mode
@ 3 V, 32 KHz, 25 ºC
• Large Voltage range, 2 to 5.5 V
• 2 clocks per instruction cycle
• 72 basic instructions
• EEPROM 4096 x 16 bits
• RAM 128 x 4 bits
• Max. 12 inputs ; port A, port B, port SP
• Max. 8 outputs ; port B, port SP
• Voltage Level Detector, 8 levels software
selectable from 1.2 V up to 4.0 V
• Melody, 7 tones + silence inclusive 4-bit timer
• Universal 10-bit counter, PWM, event counter
• Prescaler down to 1 second ( crystal = 32 KHz )
• 1/1000 sec 12 bit binary coded decimal counter
with hard or software start/stop function
• LCD 20 Segments, 3 or 4 times multiplexed
• 3 wire serial port , 8 bit, master and slave mode
• 5 external interrupts (port A, serial interface)
• 8 internal interrupts (3x prescaler, BCD counter
2x10-bit counter, melody timer, serial interface)
• timer watchdog and oscillation supervisor
Description
The EM6521 is an advanced single chip CMOS 4-bit
microcontroller. It contains EEPROM, RAM, LCD
driver, power on reset, watchdog timer, oscillation
detection circuit, 10-bit up/down and event counter,
1ms BCD counter, prescaler, voltage level detector
(Vld), serial interface 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 EM6521 is manufactured
using EM Marin's Advanced Low Power (ALP) CMOS
Process.
Figure 1. Architecture
Figure 2. Pin Configuration, TQFP52 10 * 10 * 1 mm
Typical Applications
• Timing device
• Automotive controls with display
• Intelligent display driver
• Measurement equipment
• Domestic appliance
• Interactive system with display
• Timer / sports timing devices
• Bicycle computers
• Safety and security devices
Copyright © 2005, EM Microelectronic-Marin SA
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