Volt Tolerance - Analog Devices Blackfin ADSP-BF537 Hardware Reference Manual

CASE 1:
BYPASS CAPACITORS ON NON-
COMPONENT (BOTTOM) SIDE OF
BOARD, BENEATH PACKAGE
Figure 21-4. Bypass Capacitor Placement

5 Volt Tolerance

Outputs that connect to inputs on 5 V devices can float or be pulled up to
5 V. Most Blackfin pins are not 5 V tolerant. There are a few exceptions
such as the TWI pins. Level shifters are required on all other Blackfin pins
to keep the pin voltage at or below absolute maximum ratings.
ADSP-BF537 Blackfin Processor Hardware Reference
a
B
ADS P -BF 537
CASE 2:
BYPASS CAPACITORS ON
COMPONENT (TOP) SIDE OF
BOARD, AROUND PACKAGE
System Design
21-11