參數(shù)資料
型號: MCF5270AB100
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 32-BIT, 100 MHz, RISC PROCESSOR, PQFP160
封裝: ROHS COMPLIANT, PLASTIC, QFP-160
文件頁數(shù): 11/42頁
文件大?。?/td> 554K
代理商: MCF5270AB100
Electrical Characteristics
MCF5271 Integrated Microprocessor Hardware Specification, Rev. 4
Freescale Semiconductor
19
7.3
DC Electrical Specifications
TA= Ambient Temperature, °C
Θ
JMA= Package Thermal Resistance, Junction-to-Ambient, °C/W
PD= PINT + PI/O
PINT= IDD × VDD, Watts - Chip Internal Power
PI/O= Power Dissipation on Input and Output Pins — User Determined
For most applications PI/O < PINT and can be ignored. An approximate relationship between PD
and TJ (if PI/O is neglected) is:
(2)
Solving equations 1 and 2 for K gives:
K = PD × (TA + 273 °C) + ΘJMA × PD
2 (3)
where K is a constant pertaining to the particular part. K can be determined from equation (3)
by measuring PD (at equilibrium) for a known TA. Using this value of K, the values of PD and
TJ can be obtained by solving equations (1) and (2) iteratively for any value of TA.
Table 9. DC Electrical Specifications1
Characteristic
Symbol
Min
Typical
Max
Unit
Core Supply Voltage
VDD
1.4
1.6
V
Pad Supply Voltage
OVDD
3.0
3.6
V
PLL Supply Voltage
VDDPLL
3.0
3.6
V
Input High Voltage
VIH
0.7
× OV
DD
—3.65
V
Input Low Voltage
VIL
VSS – 0.3
0.35
× OV
DD
V
Input Hysteresis
VHYS
0.06
× OV
DD
——
mV
Input Leakage Current
Vin = VDD or VSS, Input-only pins
Iin
–1.0
1.0
μA
High Impedance (Off-State) Leakage Current
Vin = VDD or VSS, All input/output and output pins
IOZ
–1.0
1.0
μA
Output High Voltage (All input/output and all output pins)
IOH = –5.0 mA
VOH
OVDD - 0.5
V
Output Low Voltage (All input/output and all output pins)
IOL = 5.0mA
VOL
——
0.5
V
Weak Internal Pull Up Device Current, tested at VIL Max.
2
IAPU
–10
– 130
μA
Input Capacitance 3
All input-only pins
All input/output (three-state) pins
Cin
7
pF
P
D
KT
J
273
°C
+
()
÷
=
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