SC28L201A1DGG,112 NXP Semiconductors, SC28L201A1DGG,112 Datasheet - Page 96
![IC UART W/FIFO 48-TSSOP](/photos/6/50/65054/568-48-tssop_sot480-1_sml.jpg)
SC28L201A1DGG,112
Manufacturer Part Number
SC28L201A1DGG,112
Description
IC UART W/FIFO 48-TSSOP
Manufacturer
NXP Semiconductors
Series
IMPACTr
Datasheet
1.SC28L201A1DGG118.pdf
(110 pages)
Specifications of SC28L201A1DGG,112
Features
False-start Bit Detection
Number Of Channels
2, DUART
Fifo's
256 Byte
Voltage - Supply
3.3V, 5V
With Parallel Port
Yes
With Auto Flow Control
Yes
With False Start Bit Detection
Yes
With Modem Control
Yes
With Cmos
Yes
Mounting Type
Surface Mount
Package / Case
48-TSSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
568-3293-5
935277824112
SC28L201A1DGG
935277824112
SC28L201A1DGG
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Philips Semiconductors
9397 750 13138
Product data sheet
12.1 Timing diagrams
The active time of read or write cycle exists only when CEN is LOW and RDN or CEN is
also LOW.
For the 68000 mode:
In general, it is convenient (but is not at all required) to think of the Read/Write signal to be
active and then let the CEN be the ‘strobing’ or clocking control. However, some users
have wired CEN LOW and allowed RDN or WRN to be the clocking or strobing input.
While this is completely within the specified limits, it is not recommended since it will
greatly increase the part’s sensitivity to noise ‘glitches’ on the RDN and WRN signals.
For the 68000 mode, the CEN is very much the clock or ‘strobing’ signal. The RDN and
WRN signals have been combined into the R/WN signal. Therefore, the part is always
prepared to do a write or read; it only needs CEN to enable.
In the 68000 mode design, care should be given to system drift over temperature, voltage,
and age when R/WN and CEN change very close to each other. If R/WN switches shortly
before CEN (due to system drift) it is possible to produce very short internal read or write
pulses which could change internal controls, FIFO address pointers, for example.
Figure 5
signals will produce.
Write = CEN and WRN LOW.
Read = CEN and RDN LOW.
Write = CEN LOW and R/WN LOW and DACKN HIGH.
Read = CEN LOW and R/WN HIGH.
loosely shows the timing conditions that may exist of the active area those
Rev. 01 — 31 October 2005
3.3 V, 5 V UART, 3.125 Mbit/s, with 256-byte FIFO
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
SC28L201
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