AT89C51SND1_06 Datasheet, PDF (10/33 Pages) ATMEL Corporation – USB Microcontrollers

48 MHz Frequency
Auto-generation
The following table shows the allowed frequencies compatible with the USB bootloader 48 MHz
auto-generation.
X1 - X2
12 MHz
OK
16 MHz
OK
20 MHz
OK
10 AT89C51SND1
4254C–MP3–03/06