DIL/NetPC DNP/1486-3V: 5 V Tolerance

It is to be considered, however, that the DIL/NetPC DNP/1486-3V is a 3.3 volt- based system. The output levels are derived from the 3.3 volt supply voltage. Not all inputs of the DIL/NetPC DNP/1486-3V can be driven by external 5 volt components. For more details, see the following table.

5 V Tolerance of the DIL/NetPC DNP/1486-3V Inputs
Pin	Name	Function	5 V Tolerant if Input
1..8	PA0..7	Parallel I/O, Port A, Bit 0..7	Yes
9..16	PB0..7	Parallel I/O, Port B, Bit 0..7	No
17..20	PC0..3	Parallel I/O, Port C, Bit 0..3	No
21..28	see Pinout	Serial Port	No
29	RESIN	Reset Input	No
30, 31	TX+, TX-	LAN	---
32	GND	Power Supply, Ground	---
33, 34	RX+, RX-	LAN	No
35	RESOUT	Reset Output	---
36	VBAT	Real Time Clock Battery Input	---
37	CLKOUT	Clock Output	---
38, 39	IRTXD, IRRXD	IrDA Infrared Serial Port	No
40..44	INT1..5	Programmable Interrupt Input 1..5	Yes
45..48	CS4..1	Programmable Chip Select Output 4..1	---
49	IOCHRDY	I/O Channel Ready	Yes
50, 51	IOR, IOW	I/O Read, I/O Write Outputs	---
52..55	SA3..0	I/O Expansion Bus, Address Bit 3..0	---
56..63	SD7..0	I/O Expansion Bus, Data Bit 7..0	Yes
64	Vcc	Power Supply, +3.3 Volt Power Input	---