MC68340AG16E Freescale Semiconductor, MC68340AG16E Datasheet - Page 402

• Manufacturer Part Number: MC68340AG16E
• Description: IC MPU 32BIT 16MHZ 144-LQFP
• Manufacturer: Freescale Semiconductor

Specifications of MC68340AG16E

• Processor Type: M683xx 32-Bit
• Speed: 16MHz
• Voltage: 5V
• Mounting Type: Surface Mount
• Package / Case: 144-LQFP
• Controller Family/series: 68K
• Core Size: 32 Bit
• No. Of I/o's: 16
• Cpu Speed: 16MHz
• No. Of Timers: 2
• Embedded Interface Type: UART
• Digital Ic Case Style: LQFP
• Rohs Compliant: Yes
• Processor Series: M683xx
• Core: CPU32
• Maximum Clock Frequency: 16 MHz
• Maximum Operating Temperature: + 105 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: 0 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Lead Free Status / Rohs Status: Details

11.3 POWER CONSIDERATIONS
The average chip-junction temperature, T J , in C can be obtained from:
where:
For most applications, P I/O < P INT and can be neglected.
An approximate relationship between P D and T J (if P I/O is neglected) is:
Solving Equations (1) and (2) for K gives:
where K is a constant pertaining to the particular part. K can be determined from equation
(3) by measuring P D (at thermal equilibrium) for a known T A . Using this value of K, the
values of P D and T J can be obtained by solving Equations (1) and (2) iteratively for any
value of T A .
11.4 AC ELECTRICAL SPECIFICATION DEFINITIONS
The AC specifications presented consist of output delays, input setup and hold times, and
signal skew times. All signals are specified relative to an appropriate edge of the clock and
possibly to one or more other signals.
The measurement of the AC specifications is defined by the waveforms shown in Figure
11-1. To test the parameters guaranteed by Motorola, inputs must be driven to the voltage
levels specified in the figure. Outputs are specified with minimum and/or maximum limits,
as appropriate, and are measured as shown. Inputs are specified with minimum setup and
hold times and are measured as shown. Finally, the measurement for signal-to-signal
specifications are shown.
Note that the testing levels used to verify conformance to the AC specifications do not
affect the guaranteed DC operation of the device as specified in the DC electrical
characteristics.
11-2
T A
P D
P INT
P I/O
JA
= Ambient Temperature, C
= Package Thermal Resistance, Junction-to-Ambient, C/W
= P INT + P I/O
= I CC x V CC , Watts—Chip Internal Power
= Power Dissipation on Input and Output Pins—User Determined
Freescale Semiconductor, Inc.
For More Information On This Product,
K = P D • (T A + 273 C) + JA • P D
T J = T A + (P D • JA )
MC68340 USER’S MANUAL
P D = K
Go to: www.freescale.com
(T J + 273 C)
(1)
2
MOTOROLA