SC16C554BIB80,551 NXP Semiconductors, SC16C554BIB80,551 Datasheet - Page 45

• Manufacturer Part Number: SC16C554BIB80,551
• Description: IC UART QUAD SOT315-1
• Manufacturer: NXP Semiconductors

Specifications of SC16C554BIB80,551

• Number Of Channels: 4, QUART
• Fifo's: 16 Byte
• Voltage - Supply: 2.5V, 3.3V, 5V
• With Auto Flow Control: Yes
• With False Start Bit Detection: Yes
• With Modem Control: Yes
• With Cmos: Yes
• Mounting Type: Surface Mount
• Package / Case: 80-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 935274934551; SC16C554BIB80-S; SC16C554BIB80-S

NXP Semiconductors
SC16C554B_554DB
Product data sheet
Fig 27. Transmit timing
Fig 28. Transmit ready timing in non-FIFO mode
D0 to D7
TXRDY
IOW
INT
TX
IOW
TX
active
byte #1
active
t
27d
start
bit
start
t
bit
23d
transmitter
not ready
t
22d
D0
t
All information provided in this document is subject to legal disclaimers.
28d
D0
5 V, 3.3 V and 2.5 V quad UART, 5 Mbit/s (max.) with 16-byte FIFOs
D1
D1
5 data bits
6 data bits
7 data bits
Rev. 4 — 8 June 2010
D2
transmitter ready
D2
data bits (0 to 7)
16 baud rate clock
active
data bits (0 to 7)
D3
D3
D4
D4
active transmitter
D5
D5
ready
D6
D6
SC16C554B/554DB
D7
D7
parity
bit
parity
bit
stop
bit
stop
bit
data
start
next
bit
t
24d
active
start
next
data
bit
002aaa116
© NXP B.V. 2010. All rights reserved.
002aab062
45 of 58