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Information on 8051
General information on component code
Component data
Pinout information
8051
8051, 8052, 8054, 8058, 8751, 8752, 8754, 8758, 8031, 8032 (DIP)
Intel 8051-series microcontroller.
+-----+ +-----+
T2 P1.0 |1 +--+ 40| VCC
T2EX P1.1 |2 39| P0.0 AD0
ECI P1.2 |3 38| P0.1 AD1
CEX0 P1.3 |4 37| P0.2 AD2
CEX1 P1.4 |5 36| P0.3 AD3
CEX2 P1.5 |6 35| P0.4 AD4
CEX3 P1.6 |7 34| P0.5 AD5
CEX4 P1.7 |8 33| P0.6 AD6
RST |9 32| P0.7 AD7
RxD P3.0 |10 8051 31| /EA VPP
TxD P3.1 |11 series 30| ALE /PROG
/INT0 P3.2 |12 29| /PSEN
/INT1 P3.3 |13 28| P2.7 A15
T0 P3.4 |14 27| P2.6 A14
T1 P3.5 |15 26| P2.5 A13
/WR P3.6 |16 25| P2.4 A12
/RD P3.7 |17 24| P2.3 A11
X0 |18 23| P2.2 A10
X1 |19 22| P2.1 A9
GND |20 21| P2.0 A8
+--------------+
8051, 8052, 8054, 8058, 8751, 8752, 8754, 8758, 8031, 8032 (PLCC)
Intel 8051-series microcontroller.
The 8x54 and 8x58 have an extra GND pin.
PLCC44
+---------------+ +---------------+---------------+
| 7 P1.5 CEX2 | 18 P3.6 /WR | 29 P2.5 A13 | 40 P0.3 AD3 |
| 8 P1.6 CEX3 | 19 P3.7 /RD | 30 P2.6 A14 | 41 P0.2 AD2 |
| 9 P1.7 CEX4 | 20 X0 | 31 P2.7 A15 | 42 P0.1 AD1 |
| 10 RST | 21 X1 | 32 /PSEN | 43 P0.0 AD0 |
| 11 P3.0 RxD | 22 GND | 33 ALE /PROG | 44 VCC |
| 12 | 23 | 34 | 1 (GND) |
| 13 P3.1 TxD | 24 P2.0 A8 | 35 /EA VPP | 2 P1.0 T2 |
| 14 P3.2 /INT0 | 25 P2.1 A9 | 36 P0.7 AD7 | 3 P1.1 T2EX |
| 15 P3.3 /INT1 | 26 P2.2 A10 | 37 P0.6 AD6 | 4 P1.2 ECI |
| 16 P3.4 T0 | 27 P2.3 A11 | 38 P0.5 AD5 | 5 P1.3 CEX0 |
| 17 P3.5 T1 | 28 P2.4 A12 | 39 P0.4 AD4 | 6 P1.4 CEX1 |
+---------------+---------------+---------------+---------------+
This pinout is from GIICM
Cross reference data
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