AT90LS2323-4SC datasheet(49/64 Pages) ATMEL

49 / 64 page

AT90S/LS2323/2343

1004D–09/01

Typical

Characteristics

The following charts show typical behavior. These figures are not tested during manu-

facturing. All current consumption measurements are performed with all I/O pins

configured as inputs and with internal pull-ups enabled. A sine wave generator with rail-

to-rail output is used as clock source.

The current consumption is a function of several factors such as: operating voltage,

operating frequency, loading of I/O pins, switching rate of I/O pins, code executed and

ambient temperature. The dominating factors are operating voltage and frequency.

The current drawn from capacitive loaded pins may be estimated (for one pin) as

L•VCC•f where CL = load capacitance, VCC = operating voltage and f = average switch-

ing frequency of I/O pin.

The parts are characterized at frequencies higher than test limits. Parts are not guaran-

teed to function properly at frequencies higher than the ordering code indicates.

The difference between current consumption in Power-down mode with Watchdog

Timer enabled and Power-down mode with Watchdog Timer disabled represents the dif-

ferential current drawn by the Watchdog Timer.

Figure 39. Active Supply Current vs. Frequency

0.00

2.00

4.00

6.00

8.00

10.00

12.00

14.00

16.00

18.00

20.00

1011

12131415

ACTIVE SUPPLY CURRENT vs. FREQUENCY

T = 25˚C

cc= 6V

cc= 5.5V

cc= 5V

cc= 4.5V

cc= 4V

cc= 3.6V

cc= 3.3V

cc= 3.0V

cc= 2.7V

Frequency (MHz)

AT90LS2323-4SC Datasheet(PDF) 49 Page - ATMEL Corporation

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