16-Bit Microcontroller with Infrared Module

6

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RECOMMENDED DC OPERATING CONDITIONS (continued)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

WAKE-UP TIMER

Wake-Up Timer Interval

65,535/

s

FLASH MEMORY

System Clock During Flash

Programming/Erase

6

MHz

Mass erase

20

40

Flash Erase Time

Page erase

20

40

ms

Flash Programming Time per

Word

(Note 11)

20

100

μs

Write/Erase Cycles

20,000

Cycles

Data Retention

100

Years

IR

Carrier Frequency

(Note 5)

Hz

Note 1:

Specifications to 0°C are guaranteed by design and are not production tested.

Note 2:

It is not recommended to write to flash memory when the supply voltage drops below the power-fail warning levels as

there is uncertainty in the duration of continuous power supply. The user application should check the status of the power-

fail warning flag before writing to flash to ensure complete write operations.

Note 3:

The power-fail warning monitor and the power-fail reset monitor track each other with a minimum delta between the two of

0.11V.

Note 4:

The power-fail reset and power-on-reset (POR) detectors operate in tandem to ensure that one or both signals are active

achieved.

Note 5:

Guaranteed by design and not production tested.

Note 6:

any current. Part is executing code from flash memory.

Note 7:

The power-check interval (PCI) can be set to always on, 1024, 2048, or 4096 nanopower ring oscillator clock cycles.

Note 8:

Note 9:

the maximum specified voltage drop. This does not include the IRTX output.

Note 11: Programming time does not include overhead associated with utility ROM interface.