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EM6620 Datasheet(PDF) 3 Page - EM Microelectronic - MARIN SA

Part No. EM6620
Description  Ultra Low Power Microcontroller with 4x8 LCD Driver
Download  56 Pages
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Maker  EMMICRO [EM Microelectronic - MARIN SA]
Homepage  http://www.emmicroelectronic.com
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EM6620 Datasheet(HTML) 3 Page - EM Microelectronic - MARIN SA

 
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EM6620
Copyright
© 2005, EM Microelectronic-Marin SA
3
www.emmicroelectronic.com
Table of Contents
Features ________________________________ 1
Description ______________________________ 1
TYPICAL applications ______________________ 1
EM6620 at a glance _______________________ 2
1.
PIN DESCRIPTION FOR EM6620 _______ 4
2.
OPERATING MODES ________________ 6
2.1
ACTIVE MODE __________________________ 6
2.2
STANDBY MODE________________________ 6
2.3
SLEEP MODE ___________________________ 6
3.
POWER SUPPLY____________________ 7
4.
RESET ____________________________ 8
4.1
OSCILLATION DETECTION CIRCUIT ___________ 9
4.2
INPUT PORT A RESET______________________ 9
4.3
DIGITAL WATCHDOG TIMER RESET__________ 10
4.4
CPU STATE AFTER RESET _________________ 10
5.
OSCILLATOR AND PRESCALER _____ 11
5.1
OSCILLATOR ___________________________ 11
5.2
PRESCALER ____________________________ 11
6.
INPUT AND OUTPUT PORTS_________ 13
6.1
PORTS OVERVIEW _______________________ 13
6.2
PORT A _______________________________ 14
6.2.1
IRQ on Port A ______________________ 14
6.2.2
Pull-up/down_______________________ 15
6.2.3
Software test variables _______________ 15
6.2.4
Port A for 10-Bit Counter and MSC _____ 15
6.3
PORT A REGISTERS ______________________ 15
6.4
PORT B _______________________________ 17
6.4.1
Input / Output Mode _________________ 17
6.4.2
Pull-up/Down ______________________ 18
6.4.3
CMOS / NCH. Open Drain Output ______ 18
6.4.4
PWM and Frequency output ___________ 19
6.5
PB[0] DYNAMIC INPUT COMPARATOR________ 19
6.6
PORT B REGISTERS_______________________ 20
7.
10-BIT COUNTER __________________ 21
7.1
FULL AND LIMITED BIT COUNTING __________ 21
7.2
FREQUENCY SELECT AND UP/DOWN COUNTING 22
7.3
EVENT COUNTING _______________________ 23
7.4
COMPARE FUNCTION _____________________ 23
7.5
PULSE WIDTH MODULATION (PWM) ________ 23
7.5.1
How the PWM Generator works. _______ 24
7.5.2
PWM Characteristics ________________ 24
7.6
COUNTER SETUP ________________________ 25
7.7
10-BIT COUNTER REGISTERS _______________ 25
8.
MILLISECOND COUNTER ___________ 27
8.1
PA[3] INPUT FOR MSC ___________________ 27
8.2
IRQ FROM MSC_________________________ 27
8.3
MSC-MODES __________________________ 28
8.4
MODE SELECTION _______________________ 28
8.5
MILLISECOND COUNTER REGISTERS_________ 30
9.
INTERRUPT CONTROLLER __________ 31
9.1
INTERRUPT CONTROL REGISTERS ___________ 32
10.
SUPPLY VOLTAGE LEVEL DETECTOR_ 33
10.1
SVLD REGISTER________________________ 33
11.
RAM _____________________________ 34
12.
LCD DRIVER_______________________ 35
12.1
LCD CONTROL _________________________ 36
12.2
LCD ADDRESSING_______________________ 36
12.3
FREE SEGMENT ALLOCATION ______________ 37
12.4
LCD REGISTERS ________________________ 37
13.
PERIPHERAL MEMORY MAP _________ 39
14.
OPTION REGISTER MEMORY MAP ____ 42
15.
ACTIVE SUPPLY CURRENT TEST _____ 43
16.
MASK OPTIONS ____________________ 44
16.1
INPUT / OUTPUT PORTS ___________________ 44
16.1.1
Port A Metal Options ________________ 44
16.1.2
Port B Metal Options ________________ 45
16.1.3
Voltage Regulator Option ____________ 46
16.1.4
SVLD and Input Comp Level Option ____ 46
16.1.5
Debouncer frequency Option __________ 46
16.1.6
User defined LCD Segment allocation___ 46
17.
TEMP. AND VOLTAGE BEHAVIORS ___ 47
17.1
IDD CURRENT (TYPICAL) _________________ 47
17.2
PULL-DOWN RESISTANCE (TYPICAL)_________ 47
17.3
PULL-UP RESISTANCE (TYPICAL) ___________ 48
17.4
OUTPUT CURRENTS (TYPICAL) _____________ 48
18.
EM6620 ELECTRICAL SPECIFICATIONS 49
18.1
ABSOLUTE MAXIMUM RATINGS_____________ 49
18.2
HANDLING PROCEDURES _________________ 49
18.3
STANDARD OPERATING CONDITIONS ________ 49
18.4
DC CHARACTERISTICS - POWER SUPPLY______ 49
18.5
SVLD AND INPUT COMPARATOR ___________ 50
18.6
OSCILLATOR ___________________________ 50
18.7
DC CHARACTERISTICS - I/O PINS ___________ 51
18.8
LCD SEG[8:1] OUTPUTS__________________ 52
18.9
LCD COM[4:1] OUTPUTS _________________ 52
18.10
DC OUTPUT COMPONENT _______________ 52
18.11
LCD VOLTAGE MULTIPLIER _____________ 52
19.
PAD LOCATION DIAGRAM ___________ 53
20.
PACKAGE & ORDERING INFORMATION 54
20.1
ORDERING INFORMATION _________________ 56
20.2
PACKAGE MARKING _____________________ 56
20.3
CUSTOMER MARKING ____________________ 56


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