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SCC68692C1F40 Datasheet(PDF) 7 Page - NXP Semiconductors

Part # SCC68692C1F40
Description  Dual asynchronous receiver/transmitter DUART
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

SCC68692C1F40 Datasheet(HTML) 7 Page - NXP Semiconductors

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Philips Semiconductors
Product specification
SCC68692
Dual asynchronous receiver/transmitter (DUART)
1998 Sep 04
7
AC CHARACTERISTICS1, 2, 4
SYMBOL
FIGURE
PARAMETER
LIMITS
UNIT
SYMBOL
FIGURE
PARAMETER
Min
Typ3
Max
UNIT
Reset Timing
tRES
1
RESET pulse width
200
ns
Bus Timing5
tAS
4,5,6
A1–A4 setup time to CSN Low
10
ns
tAH
4,5,6
A1–A4 hold time from CSN Low
100
ns
tRWS
4,5,6
RWN setup time to CSN High
0
ns
tRWH
4,5,6
RWN holdup time to CSN High
0
ns
tCSW8
4,5,6
CSN High pulse width
160
ns
tCSD9
4,5,6
CSN or IACKN High from DTACKN Low
20
ns
tDD
4,5,6
Data valid from CSN or IACKN Low
175
ns
tDA8
4
RDN Low to data bus active
15
ns
tDF8
4,5,6
Data bus floating from CSN or IACKN High
125
ns
tDI8
4
RDN High to data bus invalid
20
ns
tDS
4,5,6
Data setup time to CLK High
100
ns
tDH
4,5,6
Data hold time from CSN High
0
ns
tDAL
4,5,6
DTACKN Low from read data valid
0
ns
tDCR
4,5,6
DTACKN Low (read cycle) from CLK High
125
ns
tDCW
4,5,6
DTACKN Low (write cycle) form CLK High
125
ns
tDAH
4,5,6
DTACKN High from CSN or IACKN High
100
ns
IDAT
4,5,6
DTACKN High impedance from CSN or IACKN High
125
ns
tCSC7
4,5,6
CSN or IACKN setup time to clock High
90
ns
Port Timing5
tPS
7
Port input setup time to CSN Low
0
ns
tPH
7
Port input hold time from CSN High
0
ns
tPD
7
Port output valid from CSN High
400
ns
Interrupt Timing
tIR10
6
INTRN (or OP3–OP7 when used as interrupts) negated from:
Read RHR (RxRDY/FFULL interrupt)
300
ns
Write THR (TxRDY interrupt)
300
ns
Reset command (break interrupt)
300
ns
Stop C/T command (counter interrupt)
300
ns
Read IPCR (input port change interrupt)
300
ns
Write IMR (clear of interrupt mask bit)
300
ns
Clock Timing
tCLK
7
X1/CLK High or Low time
100
ns
fCLK11
7
X1/CLK frequency
0
3.6864
4
MHz
tCTC
7
CTCLK (IP2) High or Low time
100
ns
fCTC9
7
CTCLK (IP2) frequency
100
4
MHz
tRX
7
RxC High or Low time
220
ns
fRX9
7
RxC frequency (16X)
(1X)
100
100
2
1
MHz
MHz
tTX
7
TxC High or Low time
220
ns
fTX9
7
TxC frequency (16X)
(1X)
0
0
2
1
MHz
MHz
Transmitter Timing
tTXD
8
TxD output delay from TxC external clock input on IP pin
350
ns
tTCS
8
Output delay from TxC low at OP pin to TxD data output
150
ns
Receiver Timing
tRXS
9
RxD data setup time before RxC high at external clock input on IP pin
240
ns
tRXH
9
RxD data hold time after RxC high at external clock input on IP pin
200
ns
NOTES:
1. Parameters are valid over specified temperature range.
2. All voltage measurements are referenced to ground (GND). For testing, all inputs swing between 0.4V and 2.4V with a transition time of 5ns
maximum. For X1/CLK this swing is between 0.4V and 4.4V. All time measurements are referenced at input voltages of 0.8V and 2.0V and
output voltages of 0.8V and 2.0V, as appropriate.
3. Typical values are at +25
°C, typical supply voltages, and typical processing parameters.


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