MC68HC08AZ32A Datasheet, PDF (425/456 Pages) Motorola, Inc – HCMOS Microcontroller Unit

Freescale Semiconductor, Inc.
Electrical Specifications
Functional Operating Range
24.3 Functional Operating Range
Rating
Symbol
Operating Temperature Range⁽¹⁾
T_A
Operating Voltage Range
V_DD
1. T_{A (MAX)} = 125°C for part suffix MFU
105°C for part suffix VFU
85°C for part suffix CFU
Value
–40 to T_{A (max)}
5.0 ± 0.5v
Unit
°C
V
NOTE:
For applications which use the LVI, Motorola guarantee the functionality
of the device down to the LVI trip point (V_LVI) within the constraints
outlined in Low Voltage Inhibit (LVI) on page 173.
24.4 Thermal Characteristics
Characteristic
Thermal Resistance
QFP (64 Pins)
I/O Pin Power Dissipation
Power Dissipation (see Note 1)
Constant (see Note 2)
Average Junction Temperature
Symbol
θ_JA
P_I/O
P_D
K
T_J
Value
70
User Determined
P_D = (I_DD x V_DD) +
P_I/O = K/(T_J + 273 °C
P_D x (T_A + 273 °C)
+ (P_D2 x θ_JA)
T_A = P_D x θ_JA
Unit
°C/W
W
W
W/°C
°C
NOTES:
1. Power dissipation is a function of temperature.
2. K is a constant unique to the device. K can be determined from a known T_A and measured
P_D. With this value of K, P_D, and T_J can be determined for any value of T_A.
MC68HC08AZ32A — Rev 1.0
MOTOROLA
Electrical Specifications
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Technical Data
425