em6521 EM Microelectronic, em6521 Datasheet

em6521

Manufacturer Part Number

em6521

Description

Mfp Version Of Em6621 Ultra Low Power Microcontroller With 4x20 Lcd Driver

Manufacturer

EM Microelectronic

Datasheet

1.EM6521.pdf (68 pages)

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Features

• Low Power

• 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

• 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

• 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

• 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.

Typical

• 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

selectable from 1.2 V up to 4.0 V

2x10-bit counter, melody timer, serial interface)

with hard or software start/stop function

Ultra Low Power Microcontroller with 4x20 LCD Driver

Applications

EM MICROELECTRONIC -

- 0.1 µA sleep mode

- 11 µA

- 1.8 µA standby mode, LCD Off

@ 3 V, 32 KHz, 25 ºC

active mode, LCD On

MFP version of EM6621

Figure 1. Architecture

Figure 2. Pin Configuration, TQFP52 10 * 10 * 1 mm

MARIN SA

www.emmicroelectronic.com

EM6521

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