MC145557DW 查看數據表（PDF） - Motorola => Freescale
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MC145557DW Datasheet PDF : 20 Pages
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DIGITAL SWITCHING CHARACTERISTICS
(VCC = 5 V ± 5%, VBB = – 5 V ± 5%, GNDA = 0 V, All Signals Referenced to GNDA; TA = – 40 to + 85°C, Cload = 150 pF Unless Otherwise
Noted)
Characteristic
Symbol
Min
Typ
Max
Unit
Master Clock Frequency
MCLKX or MCLKR
fM
—
1.536
—
MHz
—
1.544
—
—
2.048
—
Minimum Pulse Width High or Low
MCLKX or MCLKR tw(M)
100
Minimum Pulse Width High or Low
BCLKX or BCLKR
tw(B)
50
Minimum Pulse WIdth Low
FSX or FSR tw(FL)
50
Rise Time for all Digital Signals
tr
—
Fall Time for all Digital Signals
tf
—
Bit Clock Data Rate
BCLKX or BCLKR
fB
128
Setup Time from BCLKX Low to MCLKR High
tsu(BRM)
50
Setup Time from MCLKX High to BCLKX Low
tsu(MFB)
20
Hold Time from BCLKX (BCLKR) Low to FSX (FSR) High
th(BF)
20
Setup Time for FSX (FSR) High to BCLKX (BCLKR) Low for Long Frame
tsu(FB)
80
Delay Time from BCLKX High to DX Data Valid
td(BD)
20
Delay Time from BCLKX High to TSX Low
td(BTS)
20
Delay Time from the 8th BCLKX Low of FSX Low to DX Output Disabled
td(ZC)
50
Delay Time to Valid Data from FSX or BCLKX, Whichever is Later
td(ZF)
20
Setup Time from DR Valid to BCLKX Low
tsu(DB)
0
Hold Time from BCLKR Low to DR Invalid
th(BD)
50
Setup Time from FSX (FSR) High to BCLKX (BCLKR) Low in Short Frame
tsu(F)
50
Hold Time from BCLKX (BCLKR) Low to FSX (FSR) Low in Short Frame
th(F)
50
Hold Time from 2nd Period of BCLKX (BCLKR) Low to FSX (FSR) Low in
th(BFI)
50
Long Frame
—
—
ns
—
—
ns
—
—
ns
—
50
ns
—
50
ns
—
4096
kHz
—
—
ns
—
—
ns
—
—
ns
—
—
ns
60
140
ns
50
140
ns
70
140
ns
60
140
ns
—
—
ns
—
—
ns
—
—
ns
—
—
ns
—
—
ns
MOTOROLA
MC145554•MC145557•MC145564•MC145567
9
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