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EM78458AM датащи(PDF) 9 Page - ELAN Microelectronics Corp

номер детали EM78458AM
подробное описание детали  8-Bit Microcontroller with MASK ROM
PDF  62 Pages
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производитель  EMC [ELAN Microelectronics Corp]
домашняя страница  http://www.emc.com.tw
Logo EMC - ELAN Microelectronics Corp

EM78458AM датащи(HTML) 9 Page - ELAN Microelectronics Corp

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EM78458/459
8-Bit Microcontroller with MASK ROM
Product Specification (V1.4) 05.27.2005
• 3
(This specification is subject to change without further notice)
3
PIN ASSIGNMENT
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
VSS
P60/ADC1
P61/ADC2
P62/ADC3
P63/ADC4
P64/ADC5
P65/ADC6
P66/ADC7
P56/CIN+
P57/CO
VDD
OSCI
OSCO
P53/VREF
P52/PW M 2
P51/PW M 1
P50/INT
P67/ADC8
P54/TCC
P55/CIN-
P60/ADC1
P61/ADC2
P62/ADC3
P63/ADC4
P64/ADC5
P65/ADC6
P66/ADC7
P56/CIN+
P57/CO
VSS
ENTCC
VSS
OSCI
OSCO
P53/VREF
P52/PW M 2
P51/PW M 1
P50/INT
P67/ADC8
P54/TCC
P55/CIN-
VDD
RESET
VDD
Fig. 1 Pin Assignment
3.1
EM78458 Pin Description
Symbol
Pin No.
Type
Function
VDD
16
-
Power supply.
OSCI
18
I
* XTAL type: Crystal input terminal or external clock input pin.
* RC type: RC oscillator input pin.
OSCO
17
O
*XTAL type: Output terminal for crystal oscillator or external clock input
pin.
*RC type: Clock output with a period of one instruction cycle time, the
prescaler is determined by the CONT register.
* External clock signal input.
P50
12
I
* General-purpose Input only.
* Default value while power-on reset.
P51 ~ P57
13~15
19, 20,
1, 2
I/O
* General-purpose I/O pin.
* Default value while power-on reset.
P60 ~ P67
3, 4,
6~11
I/O
* General-purpose I/O pin.
* Default value while power-on reset.
INT
12
I
* External interrupt pin triggered by falling edge.
ADC1~ADC8
3, 4,
6 ~ 11
I
* Analog to Digital Converter.
* Defined by AD-CMPCON (IOCA0)<2:4>.
PWM1, PWM2
13, 14
O
* Pulse width modulation outputs.
* Defined by PWMCON (IOC51)<6, 7>
VREF
15
I
* External reference voltage for ADC
* Defined by AD-CMPCON (IOCA0)<7>.
CIN-, CIN+, CO
20, 1,2
I
O
* “-“ -> the input pin of Vin- of the comparator.
* “+”-> the input pin of Vin+ of the comparator.
* Pin CO is the output of the comparator.
* Defined by AD-CMPCON (IOCA0) <5, 6>
TCC
19
I
* Real time clock/counter with Schmitt trigger input pin; it must be tied to
VDD or VSS if it is not in use.
VSS
5
-
Ground.



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