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SC68C652B Datasheet(PDF) 35 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) 35 Page - NXP Semiconductors

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SC68C652B_2
© NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 02 — 2 November 2009
35 of 43
NXP Semiconductors
SC68C652B
Dual UART with 32-byte FIFOs and IrDA encoder/decoder
Fig 13. Transmit ready timing in non-FIFO mode
D0
D1
D2
D3
D4
D5
D6
D7
002aab094
Start
bit
td17
TXA,
TXB
TXRDYA,
TXRDYB
CS (write)
data bits (0 to 7)
active
D0 to D7
byte #1
td18
transmitter
not ready
active
transmitter ready
parity
bit
Stop
bit
next
data
Start
bit
Fig 14. Transmit ready timing in FIFO mode
D0
D1
D2
D3
D4
D5
D6
D7
002aab095
Stop
bit
parity
bit
td17
TXA,
TXB
CS (write)
D0 to D7
Start
bit
data bits (0 to 7)
byte #32
TXRDYA,
TXRDYB
td18
trigger
lead
active
5 data bits
6 data bits
7 data bits



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