MCIMX253CVM4 Freescale Semiconductor, MCIMX253CVM4 Datasheet - Page 109

• Manufacturer Part Number: MCIMX253CVM4
• Description: IC MPU I.MX25 IND 400MAPBGA
• Manufacturer: Freescale Semiconductor
• Series: i.MX25r

Specifications of MCIMX253CVM4

• Core Processor: ARM9
• Core Size: 32-Bit
• Speed: 400MHz
• Connectivity: 1-Wire, EBI/EMI, Ethernet, I²C, MMC, SmartCard, SPI, SSI, UART/USART, USB OTG
• Peripherals: DMA, I²S, LCD, POR, PWM, WDT
• Number Of I /o: 128
• Program Memory Type: External Program Memory
• Ram Size: 144K x 8
• Voltage - Supply (vcc/vdd): 1.15 V ~ 1.52 V
• Data Converters: A/D 3x12b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 400-LFBGA
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Lead Free Status / Rohs Status: Compliant

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. 8
Table 83. 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
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