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| EM6625 Datasheet, PDF (1/69 Pages) EM Microelectronic - MARIN SA – Ultra Low Power Microcontroller with 4x20 LCD Driver | |||
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EM MICROELECTRONIC - MARIN SA
EM6625
Ultra Low Power Microcontroller with 4x20 LCD Driver
Features
 True Low Power 1.6 µA active mode, LCD On
0.4 µA standby mode, LCD Off
0.2 µA sleep mode
@ 3 V, 32 KHz, 25 ºC
 Low Supply Voltage 1.2 V to 3.6 V
 Melody, 7 tones + silence inclusive 4-bit timer
 Universal 10-bit counter, PWM, event counter
 LCD 20 segments, 3 or 4 times multiplexed
 Temperature compensated LCD voltage levels
 Built-in LCD voltage multipliers
 LCD frequency 32 Hz/42.7 Hz/64 Hz
 32 KHz or 128 kHz crystal oscillator
 72 basic instructions
 2 clocks per instruction cycle
 Mask 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 (VLD), 8 levels software
selectable from 1.2 V up to 4.0 V
 Prescaler down to 1 second ( crystal = 32 KHz )
 1/1000 sec 12 bit binary coded decimal counter with
hard or software start/stop function
 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 EM6625 is an ultra-low power, low voltage
microcontroller with an integrated 3/4 MUX x 20
segments LCD driver and the equivalent of 8kB mask
ROM. It features temperature compensated LCD voltage
levels, free LCD segment allocation and built-in voltage
multipliers. It also has a melody generator, a millisecond
counter (BCD) and PWM function. Tools include
windows-based simulator and emulator. A flexible MFP
version is also available for development stage.
Due to its very low current consumption, the EM6625 is
ideal for use in battery-operated and field-powered
applications.
Typical Applications
 Household appliance
 Timer / sports timing devices
 Medical devices
 Interactive system with display
 Automotive controls with display
 Measurement equipment
 Bicycle computers
 Safety and security devices
Figure 1. Architecture
32/128 KHz
Crystal Osc
VLD 8 Levels
Prescaler
Millisecond
Counter
10-Bit Univ
Count/Timer
Interrupt
Controller
ROM
4k X 16Bit
RAM
128*4Bit
VDD
Power
Supply
Core
EM6600
Power on
Reset
Watchdog
Melody
Generator
Voltage
Multiplier
Port A
0123
Port B
0123
Serial
Interface
LCD Controller
3, 4 X 20
PWM
PWM
Figure 2. Pin Configuration, TQFP52
TQFP52
VL1
1
VL2
2
VL3
3
COM[1] 4
COM[2] 5
COM[3] 6
COM[4] 7
SEG[20] 8
SEG[19] 9
SEG[18] 10
SEG[17] 11
SEG[16] 12
SEG[15] 13
EM6625
39 PA[1]
38 PA[0]
37 PB[3]
36 PB[2]
35 PB[1]
34 PB[0]
33 PS[3]
32 PS[2]
31 PS[1]
30 PS[0]
29 TEST
28 RESET
27 SEG[1]
Copyright © 2005, EM Microelectronic-Marin SA
1
www.emmicroelectronic.com
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