68C681

CMOS Dual Channel UART

Schematic Symbol

Pin Configuration (40 pins)

Pin	Name	Type
1	A1	input
2	IP3	input
3	A2	input
4	IP1	input
5	A3	input
6	A4	input
7	IP0	input
8	RWN	input
9	DTACKN	output
10	RXDB	input
11	TXDB	output
12	OP1	output
13	OP3	output
14	OP5	output
15	OP7	output
16	D1	input
17	D3	input
18	D5	input
19	D7	input
20	GND	power_in
21	INTRN	output
22	D6	input
23	D4	input
24	D2	input
25	D0	input
26	OP6	output
27	OP4	output
28	OP2	output
29	OP0	output
30	TXDA	output
31	RXDA	input
32	X1/CLK	input
33	X2	output
34	RESETN	input
35	CSN	input
36	IP2	input
37	IACKN	input
38	IP5	input
39	IP4	input
40	VCC	power_in

Footprint

This symbol has no default footprint. It's typically a generic part where the footprint depends on the package you choose.

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