SC16C554BIB64 datasheet(4/58 Pages) NXP

Part #	SC16C554BIB64

Description	5 V, 3.3 V and 2.5 V quad UART, 5 Mbit/s (max.) with 16-byte FIFOs

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Manufacturer	NXP [NXP Semiconductors]

Direct Link	http://www.nxp.com

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4 / 58 page

SC16C554B_554DB

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Product data sheet

Rev. 4 — 8 June 2010

4 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

Fig 2.

Block diagram of SC16C554B/554DB (68 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

002aaa878

FLOW

CONTROL

LOGIC

CLKSEL

16/68

DATA BUS

AND

CONTROL

LOGIC

REGISTER

SELECT

LOGIC

INTERRUPT

CONTROL

LOGIC

D0 to D7

R/W

RESET

A0 to A4

CS

IRQ

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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SC16C554BIB64 Datasheet(PDF) 4 Page - NXP Semiconductors

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