MC68HC681 Datasheet (Motorola Semiconductor) - Dual Universal Asynchronous Receiver/transmitter

MC68HC681, Dual Universal Asynchronous Receiver/transmitter

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

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