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SC68C652B Datasheet(PDF) 32 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) 32 Page - NXP Semiconductors

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SC68C652B_2
© NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 02 — 2 November 2009
32 of 43
NXP Semiconductors
SC68C652B
Dual UART with 32-byte FIFOs and IrDA encoder/decoder
(1) CS timing during a write cycle. See Figure 6.
(2) CS timing during a read cycle. See Figure 5.
Fig 7.
Modem input/output timing
td7
change of state
td8
td8
td9
002aab089
td8
change of state
change of state
change of state
active
active
active
active
active
active
active
change of state
RTSA, RTSB
DTRA, DTRB
CS (write)(1)
CDA, CDB
CTSA, CTSB
DSRA, DSRB
IRQ
CS (read)(2)
RIA, RIB
Fig 8.
External clock timing
external clock
002aac357
tw(clk)
tWL
tWH
f
XTAL
1
t
wclk
()
---------------
=



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