MCIMX257DJM4A Freescale, MCIMX257DJM4A Datasheet - Page 109
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MCIMX257DJM4A
Manufacturer Part Number
MCIMX257DJM4A
Description
Manufacturer
Freescale
Datasheet
1.MCIMX257DJM4A.pdf
(142 pages)
Specifications of MCIMX257DJM4A
Operating Temperature (min)
-20C
Operating Temperature (max)
70C
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Lead Free Status / RoHS Status
Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MCIMX257DJM4A
Manufacturer:
Piecemakers
Quantity:
101
Company:
Part Number:
MCIMX257DJM4A
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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Note:
Freescale Semiconductor
• All the timings for the SSI are given for a non-inverted serial clock polarity (TSCKP/RSCKP = 0) and a non-inverted frame sync
• All timings are on pads when SSI is being used for data transfer.
• ”Tx” and “Rx” refer, respectively, to the transmit and receive sections of the SSI.
• For internal frame sync operation using external clock, the FS timing is the same as that of Tx data (for example, during AC97
(TFSI/RFSI = 0). If the polarity of the clock and/or the frame sync have been inverted, all the timing remains valid by inverting
the clock signal STCK/SRCK and/or the frame sync STFS/SRFS shown in the tables figures.
mode of operation).
SS22
SS23
SS24
SS25
SS26
SS27
SS29
SS31
SS33
SS37
SS38
SS39
SS44
SS45
SS46
ID
(Tx/Rx) CK clock period
(Tx/Rx) CK clock high period
(Tx/Rx) CK clock rise time
(Tx/Rx) CK clock low period
(Tx/Rx) CK clock fall time
FS (bl) low/ high setup before (Tx) CK falling
FS (bl) low/ high setup before (Tx) CK falling
FS (wl) low/ high setup before (Tx) CK falling
FS (wl) low/ high setup before (Tx) CK falling
(Tx) CK high to STXD valid from high impedance
(Tx) CK high to STXD high/low
(Tx) CK high to STXD high impedance
SRXD setup before (Tx) CK falling
SRXD hold after (Tx) CK falling
SRXD rise/fall time
i.MX25 Applications Processor for Consumer and Industrial Products, Rev. 6
Table 81. SSI Transmitter Timing with External Clock
Parameter
Synchronous External Clock Operation
External Clock Operation
–10.0
–10.0
Min.
81.4
36.0
36.0
10.0
10.0
10.0
2.0
—
—
—
—
—
—
Max.
15.0
15.0
15.0
15.0
15.0
6.0
6.0
6.0
—
—
—
—
—
—
—
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
109
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