IMX51AEC Datasheet, PDF (19/175 Pages) Freescale Semiconductor, Inc – i.MX51A Automotive and infotainment applications processors

Electrical Characteristics
Table 13. i.MX51A Operating Ranges (continued)
Symbol
Parameter
Minimum¹ Nominal² Maximum¹ Unit
NVCC_HS4_1
NVCC_HS4_2
NVCC_HS6
NVCC_HS10
NVCC_I2C
HS-GPIO additional digital power supplies
I²C and HS-I²C I/O Supply⁷
1.65
—
3.1
V
1.65
1.875
1.95
V
2.7
3.0
3.3
NVCC_SRTC_
POW
SRTC Core and I/O Supply (LVIO)
1.1
1.2
1.3
V
VDDA33
USB PHY I/O analog supply
3.0
3.3
3.6
V
VBUS
See Table 11 and Table 126 for details. This is
—
—
—
—
not a power supply.
1 _{Voltage at the package power supply contact must be maintained between the minimum and maximum voltages. The design}
must allow for supply tolerances and system voltage drops.
2 _{The nominal values for the supplies indicate the target setpoint for a tolerance no tighter than ± 50 mV. Use of supplies with a}
tighter tolerance allows reduction of the setpoint with commensurate power savings.
3 _{The NVCC_IPUx rails are isolated from one another. This allows the connection of different supply voltages for each one. For}
example, NVCC_IPU2 can operate at 1.8 V while NVCC_IPU4 operates at 3.0 V.
4 _{In Read mode, Freescale recommends VDD_FUSE be floated or grounded. Tying VDD_FUSE to a positive supply}
(3.0 V–3.3 V) increases the possibility of inadvertently blowing fuses and is not recommended.
5 _{The NAND Flash supplies are composed of three groups: A, B, and C. Each group can be powered with a different supply}
voltage. For example, NVCC_NANDF_A = 1.8 V, NVCC_NANDF_B = 3.0 V, NVCC_NANDF_C = 2.7 V.
6 _{The analog supplies should be isolated in the application design. Use of series inductors is recommended.}
7 _{Operation of the HS-I}2_{C and I}2_{C is not guaranteed when operated between the supply voltages of 1.95 to 2.7 V.}
Parameter Description
JTAG: TCK Operating Frequency
CKIL: Operating Frequency
CKIH: Operating Frequency
XTAL Oscillator
Table 14. Interface Frequency
Symbol
Min
Max
f_tck
See Table 99, "JTAG Timing," on page 130
f_ckil
See Table 74, "FPM Specifications," on page 80
f_ckih
See Table 47, "CAMP Electrical Parameters (CKIH1,
CKIH2)," on page 46
f_xtal
22
27
Unit
MHz
kHz
MHz
MHz
4.1.1 Supply Current
Table 15 shows the fuse supply current.
Table 15. Fuse Supply Current¹
Description
eFuse Program Current.²
Current required to program one eFuse bit: The associated
VDD_FUSE supply per Table 13.
Symbol
Min
Typ
Max
Unit
I_program
—
60
120
mA
i.MX51A Automotive and Infotainment Applications Processors, Rev. 6
Freescale Semiconductor
19