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PDF EM78P418N Data sheet ( Hoja de datos )
| Número de pieza | EM78P418N | |
| Descripción | (EM78P417N / EM78P419N) 8-Bit Microprocessor | |
| Fabricantes | ELAN | |
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EM78P417/8/9N
8-Bit Microprocessor
with OTP ROM
Product
Specification
DOC. VERSION 1.0
ELAN MICROELECTRONICS CORP.
June 2005
1 page  
Contents
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7
6.9 Timer ................................................................................................................ 52
6.9.1 Overview ...........................................................................................................52
6.9.2 Function Description..........................................................................................53
6.9.3 Programming the Related Registers .................................................................54
6.9.4 Timer Programming Process/Steps...................................................................54
6.10 Comparator ...................................................................................................... 54
6.10.1 External Reference Signal ................................................................................55
6.10.2 Comparator Outputs..........................................................................................55
6.10.3 Using Comparator as an Operation Amplifier....................................................56
6.10.4 Comparator Interrupt .........................................................................................56
6.10.5 Wake-up from SLEEP Mode .............................................................................56
6.11 Oscillator .......................................................................................................... 56
6.11.1 Oscillator Modes................................................................................................56
6.11.2 Crystal Oscillator/Ceramic Resonators (XTAL) .................................................57
6.11.3 External RC Oscillator Mode.............................................................................58
6.11.4 Internal RC Oscillator Mode ..............................................................................59
6.12 Power-on Considerations ................................................................................. 60
6.12.1 External Power-on Reset Circuit .......................................................................60
6.12.2 Residual Voltage Protection ..............................................................................61
6.13 Code Option ..................................................................................................... 61
6.13.1 Code Option Register (Word 0).........................................................................62
6.13.2 Code Option Register (Word 1).........................................................................63
6.13.3 Customer ID Register (Word 2).........................................................................64
6.14 Instruction Set .................................................................................................. 64
Absolute Maximum Ratings................................................................................... 66
8 DC Electrical Characteristics................................................................................. 67
8.1 AD Converter Characteristic............................................................................. 68
8.2 Comparator (OP) Characteristic ....................................................................... 69
8.3 Device Characteristics...................................................................................... 69
9 AC Electrical Characteristic................................................................................... 70
10 Timing Diagrams ..................................................................................................... 71
Product Specification (V1.0) 06.23.2005
•v
5 Page 
EM78P417N/418N/419N
8-Bit Microprocessor with OTP ROM
5 Pin Description
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5.1 EM78P417NP/M Pin Description
Symbol Pin No. Type
Function
VDD
OSCI
15 –
17 I
OSCO
16 O
P50 ~ P56
10,12~14,
16 ~ 18
P60 ~ P67
1 ~ 3,
5~9
INT 10
ADC0~ADC7
1 ~ 3,
5~9
PWM1,
PWM2,
PWM3
12, 13, 14
I/O
I/O
I
I
O
VREF
14 I
/RESET
11 I
TCC
VSS
18 I
4–
Power supply
■ XTAL type Crystal input terminal or external clock input pin
■ RC type: RC oscillator input pin
■ XTAL type: Output terminal for crystal oscillator or external clock
input pin
■ RC type:
Clock output with a duration of one instruction cycle
time. The prescaler is determined by the CONT
register.
■ External clock signal input
■ General-purpose I/O pin
■ Default value at power-on reset
■ General-purpose I/O pin
■ Default value at power-on reset
■ External interrupt pin triggered by falling edge
■ Analog to Digital Converter
■ Defined by ADCON (R9)<0:2>
■ Pulse width modulation outputs
■ Defined by PWMCON (IOC80)<5:7>
■ External reference voltage for ADC
■ Defined by ADCON (R9)<7>
■ General-purpose Input only
■ If it remains at logic low, the device will be reset
■ Wake-up from sleep mode when pin status changes
■ Voltage on /RESET must not exceed Vdd during normal mode
■ Real time clock/counter with Schmitt trigger input pin. It must be
tied to VDD or VSS if not in use.
Ground.
Product Specification (V1.0) 06.23.2005
(This specification is subject to change without further notice)
•5
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet EM78P418N.PDF ] | |
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