SC16C554DB NXP Semiconductors, SC16C554DB Datasheet - Page 4

• Manufacturer Part Number: SC16C554DB
• Description: 5 V 3.3 V and 2.5 V quad UART - 5 Mbit/s (max.) with 16-byte FIFOs
• Manufacturer: NXP Semiconductors

Philips Semiconductors
9397 750 13133
Product data sheet
Fig 2. Block diagram of SC16C554B/554DB (68 mode)
D0 to D7
A0 to A4
RXRDY
RESET
TXRDY
16/68
R/W
IRQ
CS
SC16C554B/554DB
INTERRUPT
REGISTER
CONTROL
DATA BUS
CONTROL
SELECT
LOGIC
LOGIC
LOGIC
AND
5 V, 3.3 V and 2.5 V quad UART, 5 Mbit/s (max.) with 16-byte FIFOs
Rev. 01 — 9 February 2005
XTAL1
REGISTERS
REGISTERS
TRANSMIT
CONTROL
CONTROL
RECEIVE
GENERATOR
CLOCK AND
BAUD RATE
LOGIC
LOGIC
FLOW
FLOW
FIFO
FIFO
XTAL2
CLKSEL
SC16C554B/554DB
TRANSMIT
REGISTER
REGISTER
RECEIVE
CONTROL
SHIFT
SHIFT
MODEM
LOGIC
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
002aaa878
www.DataSheet4U.com
TXA to TXD
RXA to RXD
DTRA to DTRD
RTSA to RTSD
CTSA to CTSD
RIA to RID
CDA to CDD
DSRA to DSRD
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