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型号： MC9S12DT256CVPV
厂商： FREESCALE SEMICONDUCTOR INC
元件分类： 微控制器/微处理器
英文描述： 16-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQFP112
封装： LQFP-112
文件页数： 115/126页
文件大小： 3405K
代理商： MC9S12DT256CVPV
MC9S12DP256B Device User Guide — V02.15
91
A.1.7 Operating Conditions
This chapter describes the operating conditions of the device. Unless otherwise noted those conditions
apply to all the following data.
NOTE:
Please refer to the temperature rating of the device (C, V, M) with regards to the
ambient temperature TA and the junction temperature TJ. For power dissipation
calculations refer to Section A.1.8 Power Dissipation and Thermal
Characteristics.
A.1.8 Power Dissipation and Thermal Characteristics
Power dissipation and thermal characteristics are closely related. The user must assure that the maximum
operating junction temperature is not exceeded. The average chip-junction temperature (TJ)in °C can be
obtained from:
Table A-4 Operating Conditions
Rating
Symbol
Min
Typ
Max
Unit
I/O, Regulator and Analog Supply Voltage
VDD5
4.5
5
5.25
V
Digital Logic Supply Voltage 1
NOTES:
1. The device contains an internal voltage regulator to generate the logic and PLL supply out of the I/O supply. The
absolute maximum ratings apply when this regulator is disabled and the device is powered from an external
source.
VDD
2.35
2.5
2.75
V
PLL Supply Voltage 2
VDDPLL
2.35
2.5
2.75
V
Voltage Difference VDDX to VDDR and VDDA
VDDX
-0.1
0
0.1
V
Voltage Difference VSSX to VSSR and VSSA
VSSX
-0.1
0
0.1
V
Oscillator
fosc
0.5
-
16
MHz
Bus Frequency
fbus
0.5
-
25
MHz
MC9S12DP256BC
Operating Junction Temperature Range
T
J
-40
-
100
°C
Operating Ambient Temperature Range 2
2. Please refer to Section A.1.8 Power Dissipation and Thermal Characteristics for more details about the rela-
tion between ambient temperature TA and device junction temperature TJ.
T
A
-40
27
85
°C
MC9S12DP256BV
Operating Junction Temperature Range
T
J
-40
-
120
°C
Operating Ambient Temperature Range 2
T
A
-40
27
105
°C
MC9S12DP256BM
Operating Junction Temperature Range
T
J
-40
-
140
°C
Operating Ambient Temperature Range 2
T
A
-40
27
125
°C
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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