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參數(shù)資料
| 型號： | EM78P468NQ |
| 廠商： | ELAN Microelctronics Corp . |
| 元件分類： | 8位微控制器 |
| 英文描述： | 8-BIT MICROCONTROLLER |
| 中文描述： | 8位微控制器 |
| 文件頁數(shù)： | 12/82頁 |
| 文件大小： | 1491K |
| 代理商： | EM78P468NQ |
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EM78P468N
8-BIT Microcontroller
8
Product Specification (V1.2) 03.15.2005
(This specification is subject to change without further notice)
Table 1 (b) Pin Description for Package of QFP44 and LQFP44
PIN number
I/O type
18
I
* Power supply pin
15
I
* System ground pin
* In crystal mode: crystal input
* In RC mode: resistor pull high.
* In PLL mode: connect 0.01
μ
F capacitance to GND
* Connect 0.01
μ
F capacitor to GND and code option
select PLL mode when high oscillator is not use.
* In crystal mode: crystal output
* In RC mode: instruction clock output
* In crystal mode: nput pin for sub-oscillator. Connect to a
32.768KHz crystal
* RC mode: this pin is connected with a resistor to high
level.
* In crystal: Connect to a 32.768KHz crystal
* In RC mode: instruction clock output
* Low active. If set as /RESET and remains at logic low
* the devices will be reset
* General purpose I/O pin. /external interrupt.
* INT0 interruption source can be set to falling or rising
edge by IOC71 register bit 7 (INT_EDGE).
* Wake up from sleep mode and idle mode when the pin
status changes.
* General purpose I/O pin. /external interrupt.
* Interruption source is a falling edge signal.
* Wake up from sleep mode and idle mode when the pin
status changes.
* General purpose I/O/ external counter input
* This pin works in normal/green/idle mode.
PIN
VDD
GND
Description
R-OSCI
16
I
OSCO
17
O
Xin
19
I
Xout
20
O
/RESET
14
I
P5.4/INT0
21
I/O
P5.5/INT1
22
I/O
P5.6/TCC
23
I/O
P5.7/IROUT
24
I/O
* General purpose I/O pin or IR/PWM mode output pin,
* Capable of sinking 20mA/5V.
* General purpose I/O pin.
* Pull-high, pull-low and open drain function support.
* All pins can wake up from sleep and idle modes when
the pin status changes.
* LCD common output pin.
* LCD segment output pin.
P6.0
~
P6.7
25~32
I/O
COM3~0
SEG11~SEG14
SEG16/P7.0
SEG17/P7.1
~
SEG23/P7.7
6~9
5~2
1
44
~
38
O
O
O/(I/O)
* LCD segment output pin. Can be shared with general
purposes I/O pin
SEG24/P8.0
~
SEG31/P8.4
37
~
33
O/(I/O)
* LCD segment output pin. Can be shared with general
I/O pin
* For general purpose I/O use, can wake up from sleep
mode and idle mode when the pin status changes.
* For general purposes I/O use, supports pull-high
function.
* Connect capacitors for LCD bias voltage
* Connect capacitors for LCD bias voltage
* One of LCD bias voltage
* One of LCD bias voltage
VB
VA
10
11
12
13
O
O
O
O
VLCD2
VLCD3
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