DataSheet.es P-80C31 Hoja de datos PDF


PDF P-80C31 Datasheet ( Hoja de datos )

Número de pieza P-80C31
Descripción P80C31
Fabricantes NXP 
Logotipo NXP Logotipo
Vista previa
Total 38 Páginas
		
P-80C31 datasheet

1 Page

P-80C31 pdf
www.DPhaitliapSs hSeeemti4cUon.cdoucmtors
80C51 8-bit microcontroller family
4K/128 OTP/ROM/ROMless, low voltage (2.7V–5.5V),
low power, high speed (33 MHz)
Product specification
80C51/87C51/80C31
LOGIC SYMBOL
VCC
XTAL1
VSS
XTAL2
RST
EA/VPP
PSEN
ALE/PROG
RxD
TxD
INT0
INT1
T0
T1
WR
RD
ADDRESS AND
DATA BUS
T2
T2EX
ADDRESS BUS
SU00830
PIN CONFIGURATIONS
T2/P1.0 1
T2EX/P1.1 2
P1.2 3
P1.3 4
P1.4 5
P1.5 6
P1.6 7
P1.7 8
RST 9
RxD/P3.0 10
TxD/P3.1 11
INT0/P3.2 12
INT1/P3.3 13
T0/P3.4 14
T1/P3.5 15
WR/P3.6 16
RD/P3.7 17
XTAL2 18
XTAL1 19
VSS 20
40 VCC
39 P0.0/AD0
38 P0.1/AD1
37 P0.2/AD2
36 P0.3/AD3
35 P0.4/AD4
34 P0.5/AD5
33 P0.6/AD6
32 P0.7/AD7
DUAL
IN-LINE
PACKAGE
31 EA/VPP
30 ALE
29 PSEN
28 P2.7/A15
27 P2.6/A14
26 P2.5/A13
25 P2.4/A12
24 P2.3/A11
23 P2.2/A10
22 P2.1/A9
21 P2.0/A8
SU01063
PLASTIC LEADED CHIP CARRIER PIN FUNCTIONS
6 1 40
7 39
LCC
17 29
18 28
Pin Function
1 NIC*
2 P1.0/T2
3 P1.1/T2EX
4 P1.2
5 P1.3
6 P1.4
7 P1.5
8 P1.6
9 P1.7
10 RST
11 P3.0/RxD
12 NIC*
13 P3.1/TxD
14 P3.2/INT0
15 P3.3/INT1
Pin Function
16 P3.4/T0
17 P3.5/T1
18 P3.6/WR
19 P3.7/RD
20 XTAL2
21 XTAL1
22 VSS
23 NIC*
24 P2.0/A8
25 P2.1/A9
26 P2.2/A10
27 P2.3/A11
28 P2.4/A12
29 P2.5/A13
30 P2.6/A14
* NO INTERNAL CONNECTION
Pin Function
31 P2.7/A15
32 PSEN
33 ALE
34 NIC*
35 EA/VPP
36 P0.7/AD7
37 P0.6/AD6
38 P0.5/AD5
39 P0.4/AD4
40 P0.3/AD3
41 P0.2/AD2
42 P0.1/AD1
43 P0.0/AD0
44 VCC
SU01062
PLASTIC QUAD FLAT PACK
PIN FUNCTIONS
44 34
1 33
PQFP
11 23
Pin Function
1 P1.5
2 P1.6
3 P1.7
4 RST
5 P3.0/RxD
6 NIC*
7 P3.1/TxD
8 P3.2/INT0
9 P3.3/INT1
10 P3.4/T0
11 P3.5/T1
12 P3.6/WR
13 P3.7/RD
14 XTAL2
15 XTAL1
12 22
Pin Function
16 VSS
17 NIC*
18 P2.0/A8
19 P2.1/A9
20 P2.2/A10
21 P2.3/A11
22 P2.4/A12
23 P2.5/A13
24 P2.6/A14
25 P2.7/A15
26 PSEN
27 ALE
28 NIC*
29 EA/VPP
30 P0.7/AD7
* NO INTERNAL CONNECTION
Pin Function
31 P0.6/AD6
32 P0.5/AD5
33 P0.4/AD4
34 P0.3/AD3
35 P0.2/AD2
36 P0.1/AD1
37 P0.0/AD0
38 VCC
39 NIC*
40 P1.0/T2
41 P1.1/T2EX
42 P1.2
43 P1.3
44 P1.4
SU01064
2000 Jan 20
5

5 Page

P-80C31 arduino
www.DPhaitliapSs hSeeemti4cUon.cdoucmtors
80C51 8-bit microcontroller family
4K/128 OTP/ROM/ROMless, low voltage (2.7V–5.5V),
low power, high speed (33 MHz)
Product specification
80C51/87C51/80C31
(MSB)
TF2
EXF2
RCLK
TCLK EXEN2
TR2
C/T2
(LSB)
CP/RL2
Symbol
TF2
EXF2
RCLK
TCLK
EXEN2
TR2
C/T2
CP/RL2
Position
T2CON.7
T2CON.6
T2CON.5
T2CON.4
T2CON.3
T2CON.2
T2CON.1
T2CON.0
Name and Significance
Timer 2 overflow flag set by a Timer 2 overflow and must be cleared by software. TF2 will not be set
when either RCLK or TCLK = 1.
Timer 2 external flag set when either a capture or reload is caused by a negative transition on T2EX and
EXEN2 = 1. When Timer 2 interrupt is enabled, EXF2 = 1 will cause the CPU to vector to the Timer 2
interrupt routine. EXF2 must be cleared by software. EXF2 does not cause an interrupt in up/down
counter mode (DCEN = 1).
Receive clock flag. When set, causes the serial port to use Timer 2 overflow pulses for its receive clock
in modes 1 and 3. RCLK = 0 causes Timer 1 overflow to be used for the receive clock.
Transmit clock flag. When set, causes the serial port to use Timer 2 overflow pulses for its transmit clock
in modes 1 and 3. TCLK = 0 causes Timer 1 overflows to be used for the transmit clock.
Timer 2 external enable flag. When set, allows a capture or reload to occur as a result of a negative
transition on T2EX if Timer 2 is not being used to clock the serial port. EXEN2 = 0 causes Timer 2 to
ignore events at T2EX.
Start/stop control for Timer 2. A logic 1 starts the timer.
Timer or counter select. (Timer 2)
0 = Internal timer (OSC/12)
1 = External event counter (falling edge triggered).
Capture/Reload flag. When set, captures will occur on negative transitions at T2EX if EXEN2 = 1. When
cleared, auto-reloads will occur either with Timer 2 overflows or negative transitions at T2EX when
EXEN2 = 1. When either RCLK = 1 or TCLK = 1, this bit is ignored and the timer is forced to auto-reload
on Timer 2 overflow.
SU00728
Figure 1. Timer/Counter 2 (T2CON) Control Register
OSC
÷ 12
T2 Pin
C/T2 = 0
C/T2 = 1
Transition
Detector
Control
TR2 Capture
TL2
(8-bits)
TH2
(8-bits)
RCAP2L
RCAP2H
T2EX Pin
Control
EXEN2
Figure 2. Timer 2 in Capture Mode
TF2
EXF2
Timer 2
Interrupt
SU00066
2000 Jan 20
10

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