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TMS77C82 bảng dữ liệu(PDF) 2 Page - Texas Instruments

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Giải thích chi tiết về linh kiện  8-BIT MICROCONTROLLER
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TMS77C82 bảng dữ liệu(HTML) 2 Page - Texas Instruments

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TMS370Cx4x
8-BIT MICROCONTROLLER
SPNS016C – NOVEMBER 1992 – REVISED FEBRUARY 1997
2
POST OFFICE BOX 1443
• HOUSTON, TEXAS 77251–1443
Pin Descriptions
PIN
†
NO.
TYPE†
DESCRIPTION
DIP (40)
LCC (44)
A0
A1
A2
A3
A4
A5
A6
A7
18
17
16
15
14
13
11
10
20
19
18
17
16
15
13
12
I/O
Port A pins are general-purpose bidirectional I/O ports.
B0
B1
B2
39
40
1
44
1
2
I/O
Port B pins are general-purpose bidirectional I/O ports.
D3
D4
D5
D6
D7
21
20
35
22
19
23
22
40
24
21
I/O
Port D pins are general-purpose bidirectional I/O ports.
D3 is also configurable as SYSCLK.
AN0/E0
AN1/E1
AN2/E2
AN3/E3
AN4/E4
AN5/E5
AN6/E6
AN7/E7
—
—
23
24
—
—
27
28
25
26
27
28
30
31
32
33
I
Analog-to-digital converter 1 (ADC1) analog input channels or positive reference pins; any
ADC1 channel can be programmed as general-purpose input pin (E port) if not used as an
analog input or reference channel.
VCC3
VSS3
26
25
11
29
ADC1 converter positive supply voltage and optional positive reference input pin
ADC1 converter ground supply and low reference input pin
INT1
INT2
INT3
6
7
8
7
8
9
I
I/O
I/O
External (non-maskable or maskable) interrupt/general-purpose input pin
External maskable interrupt input/general-purpose bidirectional pin
External maskable interrupt input/general-purpose bidirectional pin
T1IC/CR
T1PWM
T1EVT
31
30
29
36
35
34
I/O
Timer 1 input capture/counter reset input pin/general-purpose bidirectional pin
Timer 1 pulse-width-modulation output pin/general-purpose bidirectional pin
Timer 1 external event input pin/general-purpose bidirectional pin
T2AIC1/CR
T2AIC2/PWM
T2AEVT
4
3
2
5
4
3
I/O
Timer 2A input capture/counter reset input pin/general-purpose bidirectional pin
Timer 2A input capture 2/PWM output pin/general-purpose bidirectional pin
Timer 2A external event input pin/general-purpose bidirectional pin
SCITXD
SCIRXD
SCICLK
38
37
36
43
42
41
I/O
SCI transmit data output pin/general-purpose bidirectional pin ‡
SCI receive data input pin/general-purpose bidirectional pin
SCI bidirectional serial clock pin/general-purpose bidirectional pin
RESET
5
6
I/O
System reset bidirectional pin. As input, RESET initializes microcontroller; as open-drain
output, RESET indicates detection of an internal fault by the watchdog or oscillator fault cir-
cuit.
MC
34
39
I
Mode control input pin; enables the EEPROM write-protection-override (WPO) mode, also
EPROM VPP.
XTAL1
XTAL2/CLKIN
32
33
37
38
I
O
Internal-oscillator output for crystal
Internal-oscillator crystal input/external clock source input
VCC
VSS
9
12
10
14
Positive supply voltage
Ground reference
† I = input, O = output
‡ The three-pin configuration SCI is referred to as SCI1.



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