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SC68C752B датащи(PDF) 7 Page - NXP Semiconductors |
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SC68C752B датащи(HTML) 7 Page - NXP Semiconductors |
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7 / 49 page ![]() SC68C752B_3 © Koninklijke Philips Electronics N.V. 2005. All rights reserved. Product data sheet Rev. 03 — 29 November 2005 7 of 49 Philips Semiconductors SC68C752B 5 V, 3.3 V and 2.5 V dual UART, 5 Mbit/s (max.), with 64-byte FIFOs VCC 19, 42 26 I Power supply input. XTAL1 13 10 I Crystal or external clock input. Functions as a crystal input or as an external clock input. A crystal can be connected between XTAL1 and XTAL2 to form an internal oscillator circuit (see Figure 13). Alternatively, an external clock can be connected to this pin to provide custom data rates. XTAL2 14 11 O Output of the crystal oscillator or buffered clock. (See also XTAL1.) XTAL2 is used as a crystal oscillator output or a buffered clock output. Table 2: Pin description …continued Symbol Pin Type Description LQFP48 HVQFN32 Table 3: Channel selection using CS pin CS A3 UART channel 1 - none 0 0 Channel A 0 1 Channel B |
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