參數(shù)資料
型號(hào)： MCF52277CVM166
廠商： FREESCALE SEMICONDUCTOR INC
元件分類： 微控制器/微處理器
英文描述： 32-BIT, 166.67 MHz, RISC PROCESSOR, PBGA196
封裝： 15 X 15 MM, PLASTIC, ROHS COMPLIANT, MAPBGA-196
文件頁數(shù)： 11/42頁
文件大小： 1632K
代理商： MCF52277CVM166
Electrical Characteristics
MCF5227x ColdFire Microprocessor Data Sheet, Rev. 4
Preliminary—Subject to Change Without Notice
Freescale Semiconductor
19
5.6.1
Gain Calculations
The ideal mapping of input voltage to output digital sample is defined as follows:
Figure 7. Gain Calculations
In general, the mapping function is:
S = G * V
Eqn. 4
Where V is input, S is output, and G is the slope.
Nominal Gain G0 = 4095/3300 = 1.24mV
-1
Eqn. 5
5.7
External Interface Timing Specifications
5.7.1
FlexBus
A multi-function external bus interface called FlexBus is provided with basic functionality to interface to slave-only devices up
to a maximum bus frequency of 66MHz. It can be directly connected to asynchronous or synchronous devices such as external
boot ROMs, flash memories, gate-array logic, or other simple target (slave) devices with little or no additional circuitry. For
asynchronous devices a simple chip-select based interface can be used.
Multiplexer Settling Time
tAMS
3tAIC
cycles
Gain Error
GE
–4
4
lsb1
Offset Error
OE
–2
2
Input Capacitance
CAIN
34
pF
Input Leakage Current
IALEAK
uA
Input Current (Touchscreen enable)
IIN_TS_E
uA
1
lsb: least significant bit
Table 10. ASP Electrical Characteristics (continued)
Characteristic
Symbol
Min
Max
Unit
Vi
Sample
G0
4095
SMAX
3300
0
2480
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