参数资料
型号: MC9SA256BCFUR2
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 16-BIT, FLASH, 8 MHz, MICROCONTROLLER, PQFP80
封装: QFP-80
文件页数: 63/102页
文件大小: 1050K
代理商: MC9SA256BCFUR2
MC9S12A256 Device Guide — V01.01
63
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:
The total power dissipation can be calculated from:
Two cases with internal voltage regulator enabled and disabled must be considered:
1.
Internal Voltage Regulator disabled
PIO is the sum of all output currents on I/O ports associated with VDDX and VDDR.
For RDSON is valid:
respectively
2.
Internal voltage regulator enabled
T
J
T
A
P
D
Θ
JA
()
+
=
T
J
Junction Temperature, [
°C ]
=
T
A
Ambient Temperature, [
°C ]
=
P
D
Total Chip Power Dissipation, [W]
=
Θ
JA
Package Thermal Resistance, [
°C/W]
=
P
D
P
INT
P
IO
+
=
P
INT
Chip Internal Power Dissipation, [W]
=
P
INT
I
DD
V
DD
I
DDPLL
V
DDPLL
I
DDA
+V
DDA
+
=
P
IO
R
DSON
i
I
IO
i
2
=
R
DSON
V
OL
I
OL
------------ for outputs driven low
;
=
R
DSON
V
DD5
V
OH
I
OH
------------------------------------ for outputs driven high
;
=
P
INT
I
DDR
V
DDR
I
DDA
V
DDA
+
=
相关PDF资料
PDF描述
MC9SA256BCPVR2 16-BIT, FLASH, 8 MHz, MICROCONTROLLER, PQFP112
MC9SDJ128BCFUR2 16-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQFP80
MC9SDJ128BVPVR2 16-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQFP112
MC9SDG128BMPVR2 16-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQFP112
MC9SDB128BMPVR2 16-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQFP112
相关代理商/技术参数
参数描述
MC9SDG128BCPVR2 制造商:Rochester Electronics LLC 功能描述:- Bulk
MC9SDG128BMFUR2 制造商:Motorola Inc 功能描述:
MC9SDG128BVFUR2 制造商:Rochester Electronics LLC 功能描述:- Bulk
MC9SDG128ECPV 制造商:Rochester Electronics LLC 功能描述:- Bulk
MC9SDG128ECPVR2 制造商:Rochester Electronics LLC 功能描述:- Bulk