8751

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8-bit Microcontroller

Contents

Cross-Reference

Intel			MCS51
Temic			TSC87

Family table

Model ROM size RAM size
8031AH none 128 x 8
8051AH 4k x 8 ROM 128 x 8
8751BH 4k x 8 EPROM 128 x 8
8751H 4k x 8 EPROM 128 x 8
8032AH none 128 x 8
8052AH 8k x 8 ROM 128 x 8
8752BH 8k x 8 EPROM 128 x 8
TSC80C31 none 128B
TSC80C51 4kB 128B
TSC87C51 4kB OTP 128B
80C32 none 256B
80C52 8kB 256B
TSC87C52 8kB OTP 256B
80C154 none 256B
83C154 16kB 256B
83C154D 32kB 256B

Pinout

          DIP40-600mil
           +---\/---+
   T2/P1.0 | 1    40| Vcc
 T2EX/P1.1 | 2    39| P0.0/AD0
      P1.2 | 3    38| P0.1/AD1
      P1.3 | 4    37| PO.2/AD2
      P1.4 | 5    36| P0.3/AD3
      P1.5 | 6    35| P0.4/AD4
      P1.6 | 7    34| P0.5/AD5
      P1.7 | 8    33| P0.6/AD6
       RST | 9    32| P0.7/AD7
  RXD/P3.0 |10    31| *EA/Vpp
  TXD/P3.1 |11    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
     XTAL2 |18    23| P2.2/A10
     XTAL1 |19    22| P2.1/A9
       Vss |20    21| P2.0/A8
           +--------+


              LCC44-690x690mil
+---------------------------------------------------------------+
|  7 P1.5        | 18 P3.6/*WR  | 29 P2.5/A13   | 40 P0.3/AD3   |
|  8 P1.6        | 19 P3.7/*RD  | 30 P2.6/A14   | 41 P0.2/AD2   |
|  9 P1.7        | 20 XTAL2     | 31 P2.7/A15   | 42 P0.1/AD1   |
| 10 RST         | 21 XTAL1     | 32 *PSEN      | 43 P0.0/AD0   |
| 11 P3.0/RxD    | 22 Vss       | 33 ALE/*PROG  | 44 Vcc        |
| 12 RESERVED    | 23 RESERVED  | 34 RESERVED   |  1 Vss1       |
| 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       |
| 16 P3.4/T0     | 27 P2.3/A11  | 38 P0.5/AD5   |  5 P1.3       |
| 17 P3.5/T1     | 28 P2.4/A12  | 39 P0.4/AD4   |  6 P1.4       |
+---------------------------------------------------------------+

Frequency

DIP40
Set reader to FREQ, put black probe to GND, red probe to 18,19 to measure CPU clock
LCC44
Set reader to FREQ, put black probe to GND, red probe to 20,21 to measure CPU clock

External links

8751 page on Wikipedia
8751 page on CPU-World

Files

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