MC68302
Freescale Semiconductor
The board incorporates an MC68302, 512k DRAM and a 256k EPROM.
Design DocumentNxp
Power Measurements on the MC68302 Integrated Multiprotocol Processor
Technical bulletin detailing power consumption characteristics and measurement results for the MC68302 processor across various frequencies and communication protocols.
Overview
This engineering bulletin provides detailed power consumption measurements for the NXP/Freescale MC68302 Integrated Multiprotocol Processor. It analyzes Idd current across various system configurations, specifically focusing on clock frequencies of 8MHz, 16.67MHz, and 20MHz. The document evaluates power usage during Serial Communication Controller (SCC) operations in HDLC, UART, and Transparent modes, both for single and multiple SCC configurations. It also discusses the impact of timers, the IDMA controller, and internal low-power modes on overall energy efficiency. Practical methods for reducing consumption are included, such as disabling unused peripherals and optimizing I/O pin settings. Measurements were performed using the M68302ADS development board at room temperature.
Use Cases
- Power budget analysis for embedded communication systems
- Battery life estimation for portable designs using MC68302
- Thermal management planning for high-frequency processor operation
- Optimizing peripheral configurations for minimum energy consumption
Topics
MC68302
MC68302RC20
power consumption
Idd measurement
SCC
HDLC
UART
power management
multiprotocol processor
M68302ADS
Referenced Parts
MC68302RC20
Freescale Semiconductor
The 68302 used in the tests was a 20MHz, 0.65μm shrink, 2C65T mask device with part number MC68302RC20.
| MC68302 | Freescale Semiconductor | The board incorporates an MC68302, 512k DRAM and a 256k EPROM. |
| MC68302RC20 | Freescale Semiconductor | The 68302 used in the tests was a 20MHz, 0.65μm shrink, 2C65T mask device with part number MC68302RC20. |