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SC68C652B Datasheet(PDF) 34 Page - NXP Semiconductors

Part # SC68C652B
Description  5 V, 3.3 V and 2.5 V dual UART, 5 Mbit/s (max.) with 32-byte FIFOs, IrDA encoder/decoder, and 68 mode mP interface
PDF  43 Pages
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Manufacturer  NXP [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo NXP - NXP Semiconductors

SC68C652B Datasheet(HTML) 34 Page - NXP Semiconductors

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SC68C652B_2
© NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 02 — 2 November 2009
34 of 43
NXP Semiconductors
SC68C652B
Dual UART with 32-byte FIFOs and IrDA encoder/decoder
Fig 11. Receive ready timing in FIFO mode
D0
D1
D2
D3
D4
D5
D6
D7
002aab092
first byte that
reaches the
trigger level
Stop
bit
parity
bit
td15
RXA, RXB
RXRDYA,
RXRDYB
CS (read)
active data
ready
Start
bit
data bits (0 to 7)
active
td16
Fig 12. Transmit timing
D0
D1
D2
D3
D4
D5
D6
D7
active
transmitter ready
active
16 baud rate clock
002aab093
td14
Start
bit
td12
TXA, TXB
IRQ
CS (write)
data bits (0 to 7)
active
td13
5 data bits
6 data bits
7 data bits
parity
bit
Stop
bit
next
data
Start
bit



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