參數(shù)資料
型號: MCIMX281AVM4B
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 32-BIT, 454 MHz, RISC PROCESSOR, PBGA289
封裝: 14 X 14 MM, 0.80 MM PITCH, ROHS COMPLIANT, PLASTIC, MAPBGA-289
文件頁數(shù): 20/72頁
文件大?。?/td> 915K
代理商: MCIMX281AVM4B
i.MX28 Applications Processors Data Sheet for Automotive Products, Rev. 1
Freescale Semiconductor
27
3.5
Module Timing and Electrical Parameters
3.5.1
ADC Electrical Specifications
This section describes the electrical specifications, including DC and AC information, of Low-Resolution
ADC (LRADC) and High-Speed ADC (HSADC).
3.5.1.1
LRADC Electrical Specifications
Table 31 shows the electrical specifications for the LRADC.
Output pad slew rate
(medium drive)
tps
1.7~1.9V
10pF
1.50
0.61
0.63
ns
1.7~1.9V
20pF
0.93
1.00
0.39
0.42
1.7~1.9V
50pF
0.43
0.52
0.18
0.22
3.0~3.6V
10pF
2.40
2.43
0.98
1.05
3.0~3.6V
20pF
1.58
1.53
0.65
0.67
3.0~3.6V
50pF
0.76
0.71
0.32
0.31
Input pad average
hysteresis
tih
1.7 V–1.9 V
100
75
mV
3.0 V–3.6 V
100
50
Table 31. LRADC Electrical Specifications
Parameter
Conditions
Min.
Typ.
Max.
Unit
AC Electrical Specification
Input capacitance (Cp)
No pin/pad capacitance included
0.5
pF
Resolution
12
bits
Maximum sampling rate1
(fs)
1 There is no sample and hold circuit in LRADC, so it is only for DC input voltage or ones with very small slope.
428
kHz
Power-up time2
1
sample
cycles
DC Electrical Specification
DC input voltage
0
1.85
V
Current consumption3
VDDA
VDDD
——
TBD
mA
Touchscreen Interface
Expected plate resistance
200
50000
Ω
Table 30. CLK-Type GPIO (continued)
Parameters
Symbol
Test Voltage Test Capacitance
Min Rise/Fall
Max Rise/Fall
units
Notes
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