AT89LP4052(2008) View Datasheet(PDF) - Atmel Corporation

Part Name

Description

Manufacturer

AT89LP4052
(Rev.:2008)

8-bit Microcontroller with 2/4-Kbyte Flash

Atmel Corporation 

AT89LP2052/LP4052

11. Oscillator Characteristics

XTAL1 and XTAL2 are the input and output, respectively, of an inverting amplifier that can be

configured for use as an on-chip oscillator, as shown in Figure 11-1. Either a quartz crystal or

ceramic resonator may be used. Figures 11-2 and 11-3 illustrate the relationship between sam-

ple clock loading and the respective resulting clock amplitudes.

Figure 11-1. Oscillator Connections

Note: C1, C2 = 5 pF ± 5 pF for Crystals

= 5 pF ± 5 pF for Ceramic Resonators

Figure 11-2. Quartz Crystal Clock Source

Quartz Crystal Clock Input

6.5

6

5.5

5

4.5

4

3.5

3

2.5

2

1.5

1

2 4 6 8 10 12 14 16 18 20 22 24

Frequency (MHz)

0 pF

5 pF

10 pF

11

3547I–MICRO–6/08

Share Link: