Datasheet > EM6821WW21

EM6821WW21

更新时间： 2022-04-23 23:00:11

品牌	Logo	应用领域
EMMICRO		驱动器
页数	文件大小	规格书
68页	1065K
描述
Ultra Low Power uController with 4x20 LCD Driver

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EM6821WW21 数据手册

EM MICROELECTRONIC - MARIN SA

EM6821

Ultra Low Power µController with 4x20 LCD Driver

Features

Figure 1. Architecture

• Low Power

- 1.3 µA active mode, LCD On

- 0.4 µA standby mode, LCD Off

- 0.1 µA sleep mode

@ 3 V, 32 KHz, 25 ºC

• Low Voltage

- 1.2 to 3.6 V

• 2 clocks per instruction cycle

• 72 basic instructions

• ROM 4k 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

Figure 2. Pin Configuration, TQFP52 10x10x1 mm

Description

The EM6821 is an advanced single chip low cost

CMOS microcontroller. It contains ROM, 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 EM6821 is manufactured

using EM Microelectronic’a advanced low power

(ALP) CMOS process.

Typical Applications

• Timing device

• Timer / sports timing devices

• Bicycle computers

• Measurement equipment

• Domestic appliance

• Interactive system with display

• Automotive controls with display

• Safety and security devices

www.emmicroelectronic.com

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