at90s2323 ATMEL Corporation, at90s2323 Datasheet - Page 49

• Manufacturer Part Number: at90s2323
• Description: 8-bit Microcontroller With 2k Bytes Of In-system Programmable Flash At90s2323 At90ls2323 At90s2343 At90ls2343
• Manufacturer: ATMEL Corporation

Typical
Characteristics
1004D–09/01
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
C
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
L
•V
CC
20.00
18.00
16.00
14.00
12.00
10.00
•f where C
8.00
6.00
4.00
2.00
0.00
0
1
L
2
= load capacitance, V
ACTIVE SUPPLY CURRENT vs. FREQUENCY
3
4
5
Frequency (MHz)
6
T = 25˚C
A
7
CC
= operating voltage and f = average switch-
8
AT90S/LS2323/2343
9
10
V
cc
= 2.7V
11
V
cc
= 3.0V
12
13
14
V
V
cc
cc
= 3.6V
= 3.3V
15
V
V
V
V
V
cc
cc
cc
cc
cc
= 6V
= 5.5V
= 5V
= 4.5V
= 4V
49