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MX10C8052FC Datasheet(PDF) 5 Page - List of Unclassifed Manufacturers |
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MX10C8052FC Datasheet(HTML) 5 Page - List of Unclassifed Manufacturers |
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5 / 14 page  5 P/N:PM0591 REV. 0.3, APR. 09, 1999 MX10C805X Table 2. Status of the External Pins during Idle and Power Down Mode Program Memory ALE PSEN PORT0 PORT1 PORT2 PORT3 Idle Internal 1 1 Data Data Data Data Idle External 1 1 Float Data Address Data Power Down Internal 0 0 Data Data Data Data Power Down External 0 0 Float Data Data Data POWER DOWN MODE To save even more power, a Power Down mode can be invoked by software. If this mode, the oscillator is stopped and the instruction that invoked Power Down is the last instruction executed. The on-chip RAM and Special Function Registers retain their values until the Power Down mode is terminated. On the MX10C805X either a hardware reset or an ex- ternal interrupt can cause an exit from Power Down. Re- set redefines all the SFRs but does not change the on- chip RAM. An external interrupt allows both the SFRs and on-chip RAM to retain their values. ABSOLUTE MAXIMUM RATING* Ambient Temperature Under Bias -40°C to +85°C Storage Temperature -65°C to +150°C Voltage on Any Other Pin to VSS -0.5V to +6.5V IOL Per I/O Pin 15mA Power Dissipation 1.5W (Based on PACKAGE heat transfer limitations, not de- vice consumption) IDLE MODE The user's software can invoke the Idle Mode. When the microcontroller is in this mode, power consumption is reduced. The Special Function Registers and the onboard RAM retain their values during Idle, but the pro- cessor stops executing instructions. Idle Mode will be exited if the chip is reset or if an enabled interrupt oc- curs. OPERATING CONDITIONS Symbol Description Min Max Units TA Ambient Temperature Under Bias Commerical 0 +70 ° C Industrial -40 +85 ° C VCC 4.5 5.5 V fOSC Oscillator Frequency 3.5 40 MHz To properly terminate Power Down, the reset or exter- nal interrupt should not be executed before VCC is re- stored to its normal operating level, and must be held active long enough for the oscillator to restart and stabi- lize (normally less than 10 ms). With an external interrupt, INT0 and INT1 must be en- abled and configured as level-sensitive. Holding the pin low restarts the oscillator but bringing the pin back high completes the exit. Once the interrupt is serviced, the next instruction to be executed after RETI will be the one following the instruction that put the device into Power Down. |
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