AT89LP428 Datasheet, PDF (128/149 Pages) ATMEL Corporation – 8-bit Microcontroller with 4K/8K Bytes In-System Programmable Flash

24.3
Typical Characteristics
The following charts show typical behavior. These figures are not tested during manufacturing.
All current consumption measurements are performed with all I/O pins configured as quasi-bidi-
rectional (with internal pull-ups). A square wave generator with rail-to-rail output is used as an
external clock source for consumption versus frequency measurements.
24.3.1 Supply Current (Internal Oscillator)
Figure 24-1. Active Supply Current vs. Vcc (8 MHz Internal Oscillator)
9
8
7
6
5
4
3
2
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
Vcc (V)
Figure 24-2. Idle Supply Current vs. Vcc (8 MHz Internal Oscillator)
85C
-40C
25C
3.0
2.5
2.0
1.5
1.0
0.5
0.0
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
Vcc (V)
85C
-40C
25C
128 AT89LP428/828
3654A–MICRO–8/09