884x: Difference between revisions

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|'''MB8842M''' || 2KB (2Kx8bit) || 64B (128x4bit) || 25 || 3MHz || [[:Category:DIP28-600mil]]
|'''MB8842M''' || 2KB (2Kx8bit) || 64B (128x4bit) || 25 || 3MHz || [[:Category:DIP28-600mil]]
|-
|-
|'''MB8842-PSH''' || 2KB (2Kx8bit) || 64B (128x4bit) || 25 || 3MHz || [[:Category:SDIP28-600mil]]
|'''MB8842-PSH''' || 2KB (2Kx8bit) || 64B (128x4bit) || 25 || 3MHz || [[:Category:SDIP28-6400mil]]
|-
|-
|'''MB8843M''' || 1KB (1Kx8bit) || 32B (64x4bit) || 37 || 3MHz || [[:Category:DIP42-600mil]]
|'''MB8843M''' || 1KB (1Kx8bit) || 32B (64x4bit) || 37 || 3MHz || [[:Category:DIP42-600mil]]
Line 24: Line 24:
|'''MB8844M''' || 1KB (1Kx8bit) || 32B (64x4bit) || 25 || 3MHz || [[:Category:DIP28-600mil]]
|'''MB8844M''' || 1KB (1Kx8bit) || 32B (64x4bit) || 25 || 3MHz || [[:Category:DIP28-600mil]]
|-
|-
|'''MB8844-PSH''' || 1KB (1Kx8bit) || 32B (64x4bit) || 25 || 3MHz || [[:Category:SDIP28-600mil]]
|'''MB8844-PSH''' || 1KB (1Kx8bit) || 32B (64x4bit) || 25 || 3MHz || [[:Category:SDIP28-400mil]]
|-
|-
|'''MB8845HM''' || 2KB (2Kx8bit) || 64B (128x4bit) || 37 || 6MHz || [[:Category:QFP48-(12x12)-12x12mm]]
|'''MB8845HM''' || 2KB (2Kx8bit) || 64B (128x4bit) || 37 || 6MHz || [[:Category:QFP48-(12x12)-12x12mm]]

Revision as of 23:25, 8 December 2024

4-bit single-chip Microcomputer

Family table

Model ROM size SRAM size I/O Lines Speed Package
MB8841HM 2KB (2Kx8bit) 64B (128x4bit) 37 6MHz Category:DIP42-600mil
MB8841H-PSH 2KB (2Kx8bit) 64B (128x4bit) 37 6MHz Category:SDIP42-600mil
MB8842M 2KB (2Kx8bit) 64B (128x4bit) 25 3MHz Category:DIP28-600mil
MB8842-PSH 2KB (2Kx8bit) 64B (128x4bit) 25 3MHz Category:SDIP28-6400mil
MB8843M 1KB (1Kx8bit) 32B (64x4bit) 37 3MHz Category:DIP42-600mil
MB8843-PSH 1KB (1Kx8bit) 32B (64x4bit) 37 3MHz Category:SDIP42-600mil
MB8844M 1KB (1Kx8bit) 32B (64x4bit) 25 3MHz Category:DIP28-600mil
MB8844-PSH 1KB (1Kx8bit) 32B (64x4bit) 25 3MHz Category:SDIP28-400mil
MB8845HM 2KB (2Kx8bit) 64B (128x4bit) 37 6MHz Category:QFP48-(12x12)-12x12mm
MB8846M 2KB (2Kx8bit) 64B (128x4bit) 25 3MHz Category:QFP48-(12x12)-12x12mm
MB8847M 1KB (1Kx8bit) 32B (64x4bit) 37 3MHz Category:QFP48-(12x12)-12x12mm
MB8848M 1KB (1Kx8bit) 32B (64x4bit) 25 3MHz Category:QFP48-(12x12)-12x12mm

Pinout

          MB8841H
	  MB8843
        DIP42-600mil
         +---\/---+
      EX | 1    42| Vcc
       X | 2    41| K3
  *RESET | 3    40| K2
    *IRQ | 4    39| K1
      SO | 5    38| K0
      SI | 6    37| R15
 *SC/*TO | 7    36| R14
     *TC | 8    35| R13
      P0 | 9    34| R12
      P1 |10    33| R11
      P2 |11    32| R10
      P3 |12    31| R9
      O0 |13    30| R8
      O1 |14    29| R7
      O2 |15    28| R6
      O3 |16    27| R5
      O4 |17    26| R4
      O5 |18    25| R3
      O6 |19    24| R2
      O7 |20    23| R1
     Vss |21    22| R0
         +--------+


          MB8842
	  MB8844
        DIP42-600mil
         +---\/---+
      EX | 1    28| Vcc
       X | 2    27| K3
  *RESET | 3    26| K2
      O0 | 4    25| K1
      O1 | 5    24| K0
      O2 | 6    23| R10/*IRQ
      O3 | 7    22| R9/*TC
      O4 | 8    21| R8
      O5 | 9    20| R7
      O6 |10    19| R6
      R7 |11    18| R5
      R0 |12    17| R4
      R1 |13    16| R3
     Vss |14    15| R2
         +--------+

              MB8845H
              MB8847
         QFP48-(12x12)-12x12mm
+-------------------------------------------+
|  1 R5   | 13 K0     | 25 SI      | 37 O3  |
|  2 R6   | 14 K1     | 26 *SC/*TO | 38 O5  |
|  3 R7   | 15 K2     | 27 *TC     | 39 O6  |
|  4 R8   | 16 K3     | 28 P0      | 40 O7  |
|  5 R9   | 17 Vcc    | 29 P1      | 41 NC  |
|  6 R10  | 18 NC     | 30 NC      | 42 NC  |
|  7 R11  | 19 OPEN   | 31 P2      | 43 Vss |
|  8 R12  | 20 EX     | 32 P3      | 44 R0  |
|  9 R13  | 21 X      | 33 O0      | 45 R1  |
| 10 R14  | 22 *RESET | 34 O1      | 46 R2  |
| 11 NC   | 23 *IRQ   | 35 O2      | 47 R3  |
| 12 R15  | 24 SO     | 36 O3      | 48 R4  |
+-------------------------------------------+


              MB8846
              MB8848
         QFP48-(12x12)-12x12mm
+------------------------------------------+
|  1 NC       | 13 NC     | 25 SC | 37 NC  |
|  2 R5       | 14 K2     | 26 O0 | 38 R0  |
|  3 NC       | 15 NC     | 27 NC | 39 NC  |
|  4 R6       | 16 K3     | 28 O1 | 40 R1  |
|  5 R7       | 17 NC     | 29 O2 | 41 NC  |
|  6 NC       | 18 Vcc    | 30 NC | 42 NC  |
|  7 R8       | 19 OPEN   | 31 O3 | 43 Vss |
|  8 R9/*TC   | 20 EX     | 32 O4 | 44 R2  |
|  9 R10/*IRQ | 21 NC     | 33 O5 | 45 NC  |
| 10 K0       | 22 X      | 34 O6 | 46 R3  |
| 11 NC       | 23 NC     | 35 NC | 47 NC  |
| 12 K1       | 24 *RESET | 36 O7 | 48 R4  |
+------------------------------------------+

Frequency

DIP48
Set reader to FREQ, put black probe to GND, red probe to 1 and 2 to measure CPU clock

DIP42
Set reader to FREQ, put black probe to GND, red probe to 1 and 2 to measure CPU clock

QFP48 (MB8845H and MB8847 only)
Set reader to FREQ, put black probe to GND, red probe to 20 and 21 to measure CPU clock

QFP48 (MB8846 and MB8848 only)
Set reader to FREQ, put black probe to GND, red probe to 20 and 2to measure CPU clock

External links

Files

  • MB884x family Datasheet

    MB884x family Datasheet

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