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SC16C554BIBM Datasheet(PDF) 3 Page - NXP Semiconductors |
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SC16C554BIBM Datasheet(HTML) 3 Page - NXP Semiconductors |
3 / 58 page SC16C554B_554DB All information provided in this document is subject to legal disclaimers. © NXP B.V. 2010. All rights reserved. Product data sheet Rev. 4 — 8 June 2010 3 of 58 NXP Semiconductors SC16C554B/554DB 5 V, 3.3 V and 2.5 V quad UART, 5 Mbit/s (max.) with 16-byte FIFOs 4. Block diagram Fig 1. Block diagram of SC16C554B/554DB (16 mode) DTRA to DTRD RTSA to RTSD TRANSMIT FIFO REGISTERS TXA to TXD RECEIVE SHIFT REGISTER RECEIVE FIFO REGISTERS RXA to RXD SC16C554B/554DB TRANSMIT SHIFT REGISTER XTAL2 XTAL1 002aaa877 INTSEL FLOW CONTROL LOGIC CLKSEL 16/68 DATA BUS AND CONTROL LOGIC REGISTER SELECT LOGIC INTERRUPT CONTROL LOGIC D0 to D7 IOR IOW RESET A0 to A2 CSA to CSD INTA to INTD TXRDY RXRDY CLOCK AND BAUD RATE GENERATOR MODEM CONTROL LOGIC CTSA to CTSD RIA to RID CDA to CDD DSRA to DSRD FLOW CONTROL LOGIC |
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