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參數資料
| 型號： | EM6821TQ52D |
| 英文描述： | Advanced Synchronous Rectified Buck MOSFET Drivers with Pre-POR OVP; Temperature Range: -40°C to 85°C; Package: 8-SOIC |
| 中文描述： | 微控制器 |
| 文件頁數： | 1/69頁 |
| 文件大小： | 852K |
| 代理商： | EM6821TQ52D |
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EM6821
10/01, Revision A/386
Copyright
2001, EM Microelectronic-Marin SA
1
www.emmicroelectronic.com
Ultra Low Power Controller with 4x20 LCD Driver
Features
Low Power
- 1.3 A active mode, LCD On
- 0.4 A standby mode, LCD Off
- 0.1 A sleep mode
@ 3 V, 32 KHz, 25 C
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
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
Figure 1. Architecture
Figure 2. Pin Configuration, TQFP52 10x10x1 mm
EM MICROELECTRONIC - MARIN SA
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