Pin No. | Pin Name | I/O | Description | ||
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| 1 |
| VSS3 | — | Ground |
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2 | – | 5 | SOA – SOD | O | Serial data output |
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6, 7 |
| ECJ0, ECJ1 | I | Conditional jump input terminal (7pin Connected to ground) | |
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| 8 |
| — | NC | No connection |
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| 9 |
| XHDWR | I | HCIF data write |
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| 10 |
| XHDRD | I | HCIF data read |
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| 11 |
| VSS4 | — | Ground |
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| 12 |
| VDD2 | — | +3.3V |
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| 13 |
| HRDY | O | HCIF ready signal Open drain |
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| 14 |
| XHDCS | I | HCIF chip select |
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| 15 |
| HA0 | I | HCIF address input |
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16 | – | 20 | HD0 – HD4 | I/O | HCIF data input/output |
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| 21 |
| VSS5 | — | Ground |
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| 22 |
| VDD3 | — | +3.3V |
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23 | – | 25 | HD5 – HD7 | I/O | HCIF data input/output |
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| 26 |
| XRST | I | Reset input “L”: active |
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27 | – | 30 | FGP0 – FGP3 | O | Test data output |
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| 31 |
| VSS6 | — | Ground |
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32 | – | 40 | ED0 – ED8 | I/O | External RAM data input/output |
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| 41 |
| VSS7 | — | Ground |
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| 42 |
| VDD4 | — | +3.3V |
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43 | – | 49 | ED9 – ED15 | I/O | External RAM data input/output |
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| 50 |
| TSTD | I | Test data input “L” = normal “H” = test (Connected to ground) |
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| 51 |
| VSS8 | — | Ground |
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| 52 |
| VDD5 | — | +3.3V |
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53 | – | 60 | ED16 – ED23 | I/O | External RAM data input/output |
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| 61 |
| VSS9 | — | Ground |
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62 | – | 69 | ED24 – ED31 | I/O | External RAM data input/output |
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| 70 |
| XOE | O | External RAM output enable |
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| 71 |
| VSS10 | — | Ground |
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| 72 |
| VDD6 | — | +3.3V |
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| 73 |
| CAS | O | External RAM column address strobe (Not used) |
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| 74 |
| XWE | O | External RAM write enable (Not used) |
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| 75 |
| RAS | O | External RAM raw address strobe |
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76 | – | 80 | EA0 – EA4 | I/O | External RAM address output/test data input |
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| 81 |
| VSS11 | — | Ground |
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| 82 |
| VDD7 | — | +3.3V |
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83 | EA5 – EA11 | I/O | External RAM address output/test data input | ||
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| 90 |
| EA12 | O | External RAM address output |
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