MCIMX537CVV8C Freescale Semiconductor, MCIMX537CVV8C Datasheet - Page 38

• Manufacturer Part Number: MCIMX537CVV8C
• Description: IC, 32-BIT MPU, 800 MHz, 529-BGA
• Manufacturer: Freescale Semiconductor
• Series: ARM Cortex-A8r

Specifications of MCIMX537CVV8C

• Core Size: 32bit
• Program Memory Size: 288KB
• Cpu Speed: 1GHz
• Digital Ic Case Style: BGA
• No. Of Pins: 529
• Operating Temperature Range: -20°C To +85°C
• Msl: MSL 3 - 168 Hours
• Lead Free Status / Rohs Status: Supplier Unconfirmed

Electrical Characteristics
Table 19
38
1
2
3
4
Output
Driver
Impedance
Parameter
Output driver impedance is controlled across PVTs (process, voltages, and temperatures) using calibration procedure and
pu_*cal, pd_*cal input pins.
Output driver impedance deviation (calibration accuracy) is ±5% (max/min impedance) across PVTs.
Calibration is done against external reference resistor. Value of the resistor should be varied depending on DDR mode and
DDR_SEL setting.
If DDR_SEL = ‘01’ or DDR_SEL = ‘11’ are selected with NVCC_DRAM = 1.2 V for LPDDR2 operation, the external reference
resistor value must be 160 Ω for a correct ZQ calibration. In any case, reference resistors attached to the DDR memory devices
should be kept to 240 Ω per the JEDEC standard.
shows DDR output driver average impedance of the i.MX53 processor.
Symbol
Rdrv
2
LPDDR1/DDR2 mode
NVCC_DRAM = 1.8 V
DDR_SEL = 00
Calibration resistance = 300 Ω
DDR2 mode
NVCC_DRAM = 1.8 V
DDR_SEL = 01
Calibration resistance = 180 Ω
DDR2 mode
NVCC_DRAM = 1.8 V
DDR_SEL = 10
Calibration resistance = 200 Ω
DDR2 mode
NVCC_DRAM= 1.8 V
DDR_SEL = 11
Calibration resistance = 140 Ω
LPDDR2 mode
NVCC_DRAM= 1.2 V
DDR_SEL = 01
Calibration resistance = 160 Ω
LPDDR2 mode
NVCC_DRAM = 1.2 V
DDR_SEL = 10
Calibration resistance = 240 Ω
LPDDR2 mode
NVCC_DRAM = 1.2 V
DDR_SEL = 11
Calibration resistance = 160 Ω
DDR3 mode
NVCC_DRAM = 1.5 V
DDR_SEL = 00
Calibration resistance = 200 Ω
i.MX53xD Applications Processors for Consumer Products, Rev. 3
Test Conditions
Table 19. DDR Output Driver Average Impedance
4
4
3
3
3
3
3
3
3
3
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
000
001
300
180
200
140
160
240
160
240
010
150
100
120
120
90
70
80
80
Drive strength (DSE)
011
100
60
66
46
53
80
53
80
100
75
45
50
35
40
60
40
60
1
101
60
36
40
28
32
48
32
48
Freescale Semiconductor
110
50
30
33
23
27
40
27
48
111
43
26
28
20
23
34
23
34
Unit
Ω