參數(shù)資料
型號： 935056380518
廠商： NXP SEMICONDUCTORS
元件分類： 微控制器/微處理器
英文描述： 8 CHANNEL(S), 115.2K bps, SERIAL COMM CONTROLLER, PQCC84
封裝： PEDESTAL, PLASTIC, MO-047AF, SOT-189-3, LCC-84
文件頁數(shù)： 13/29頁
文件大?。?/td> 167K
代理商： 935056380518
Philips Semiconductors
Product specification
SCC2698B
Enhanced octal universal asynchronous
receiver/transmitter (Octal UART)
2000 Jan 31
20
AC Electrical characteristics1, 2, 3, 4 TA = 0 to +70_, VCC = 5.0 V " 10%, –40 to 85_C
SYMBOL
FIGURE
PARAMETER
LIMITS
UNIT
SYMBOL
FIGURE
PARAMETER
Min
Typ
Max
UNIT
Reset timing
tRES
5
Reset pulse width
200
ns
Bus timing5
tHS
6
A0–A5 setup time to RDN, WRN Low
10
ns
tAH11
6
A0–A5 hold time from RDN, WRN Low
100
ns
tCS6
6
CEN setup time to RDN, WRN Low
0
ns
tCH6
6
CEN hold time from RDN, WRN High
0
ns
tRW
6
WRN, RDN pulse width Low
225
ns
tDD
6
Data valid after RDN Low
200
ns
tDF
6
Data bus floating after RDN High
80
ns
tDS
6
Data setup time before WRN High
100
ns
tDH
6
Data hold time after WRN High
10
ns
tRWD7
Time between reads and/or writes
100
ns
MPI and MPO timing5
tPS
7
MPI or MPP input setup time before RDN Low
0
ns
tPH
7
MPI or MPP input hold time after RDN High
0
ns
tPD
7
MPO output valid from
WRN High
RDN Low
250
ns
Interrupt timing
tIR
8
INTRN negated or MPP output High from:
Read RHR (RxRDY/FFULL interrupt)
Write THR (TxRDY interrupt)
Reset command (break change interrupt)
Reset command (MPI change interrupt)
Stop C/T command (counter interrupt)
Write IMR (clear of interrupt mask bit)
270
ns
Clock timing
tCLK
9
X1/CLK high or low time
120
ns
tCLK
9
X1/CLK frequency10
0
3.6864
4.0
MHz
tCTC
9
Counter/timer clock high or low time
120
ns
fCTC
9
Counter/timer clock frequency
08
4.0
MHz
tRX
9
RxC high or low time
200
ns
fRX
9
RxC frequency (16X)
RxC frequency (1X)
08
2.0
1.0
MHz
tTX
9
TxC high or low time
200
ns
fTX
9
TxC frequency (16X)
TxC frequency (1X)
08
2.0
1.0
MHz
Transmitter timing
tTXD
10
TxD output delay from TxC low
350
ns
tTCS
10
TxC output delay from TxD output data
0
150
ns
Receiver timing
tRXS
11
RxD data setup time to RxC high
50
ns
tRXH
11
RxD data hold time from RxC high
100
ns
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