| Part number | MC68HC2681, MC68HC681 |
|---|---|
| Manufacturer | Motorola Semiconductor |
| File Size | 529.56 KB |
| Description | Dual Universal Asynchronous Receiver/transmitter |
| Datasheet |
 MC68HC681_MotorolaSemiconductor.pdf
|
| Note |
This datasheet PDF includes multiple part numbers: MC68HC2681, MC68HC681. Please refer to the document for exact specifications by model. |
2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 2.10 2.11 2.12 2.13 2.14 2.14.1 2.14.2 2.14.3 2.14.4 2.14.5 2.14.6 2.15 2.15.1 2.15.2 2.15.3 2.15.4 VCC and GND Crystal Input or External CLOCK (X1) Crystal Input (X2) RESET (RESET) Chip-Select (CS) Read/Write (R/W) Data Transfer Ackowledge (DTACK) Register-Select Bus (RS1 RS4) Data Bus (D0 D7) Interupt Request (IRQ) Interupt Ackowledge (IACK) Channel A/B Transmitter Serial-Data Output (TxDA/TxDB) Channel A/B Receiver Serial-Data Inp
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