參數(shù)資料
型號: HMS81C2020AQ
廠商: Electronic Theatre Controls, Inc.
英文描述: CMOS Single-Chip 8-Bit Microcontroller with A/D Converter & VFD Driver
中文描述: CMOS單芯片8位微控制器與A / D轉(zhuǎn)換器
文件頁數(shù): 14/107頁
文件大小: 1482K
代理商: HMS81C2020AQ
HMS81C2012A/2020A
10
SEP. 2004 Ver 2.00
PIN NAME
In/Out
Function
Basic
Alternate
V
DD
-
Supply voltage
V
SS
-
Circuit ground
RA (V
disp
)
I(I)
1-bit high-voltage Input only port
High-voltage input power supply pin
RESET
I
Reset signal input
XIN
I
Oscillation input
XOUT
O
Oscillation output
SXIN(R74)
I
Sub Oscillation input
General I/O ports
SXOUT(R75)
O
Sub Oscillation output
R00 (INT0)
I/O (I)
8-bit high-voltage I/O ports
External interrupt 0 input
R01 (INT1)
I/O (I)
External interrupt 1 input
R02 (EC0)
I/O (I)
Timer/Counter 0 external input
R03 (BUZO)
I/O (O)
Buzzer driving output
R04~R07
I/O
R10~R17
I/O
8-bit high-voltage I/O ports
R20~R27
I/O
8-bit high-voltage I/O ports
R30~R35
I/O
6-bit high-voltage I/O ports
R40 (T0O)
I/O (O)
4-bit general I/O ports
Timer/Counter 0 output
R41~R43
I/O
R50~R52
I/O
8-bit general I/O ports
R53 (SCLK)
I/O (I/O)
Serial clock source
R54 (SIN)
I/O (I)
Serial data input
R55 (SOUT)
I/O (O)
Serial data output
R56 (PWM1O/T1O)
I/O (O)
PWM 1 pulse output /Timer/Counter 1 out-
put
R57
I/O
R60~R67 (AN0~AN7)
I/O (I)
8-bit general I/O ports
Analog voltage input
R70~R73
(AN8~AN11)
I/O (I)
4-bit general I/O ports
AV
DD
-
Supply voltage input pin for ADC
AV
SS
-
Ground level input pin for ADC
V
DD
-
Supply voltage
V
SS
-
Circuit ground
Table 5-1 HMS81C2020A Port Function Description
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