Lucent Technologies USS-720 Pin Information, USB-to-IEEE, Preliminary Data Sheet, Rev, September

Preliminary Data Sheet, Rev. 5	USS-720	Instant USB
September 1999	USB-to-IEEE	1284 Bridge

Pin Information

PDATA[1]

PDATA[2]

VDD5

PDATA[3]

PDATA[4]

GND

PDATA[5]

PDATA[6]

VDD5

PDATA[7]

NAUTOFD

PDATA[0]

44

1

2

3

4

5

6

7

8

9

10

11

12

NSELECTIN

NSTROBE	HLH	PLH	SUSPEND	GND	VDD	NUSB RESET	DIO	CS	SK
43	42	41	40	39	38	37	36	35	34
									33
									32
									31
									30
									29
			TOP VIEW						28
									27
									26
									25
									24
									23
13	14	15	16	17	18	19	20	21	22
NINIT	NACK	BUSY	VDD	GND	PERROR	SELECT	NFAULT	CLK LO	CLK HI

TST_RST

RESET

TEST

GND

VDD

DMNS

DPLS

PLL_VSS

PLL_VDD

SCAN_EN

SCAN

5-5429.r4

Note: An N before symbol names indicates active-low.

			Figure 2. Pin Diagram
Table 1. Pin Descriptions
Pin	Symbol*	Type	Name/Description
1	PDATA[1]	I/O	Parallel Port Data Signal Bit 1.
2	PDATA[2]	I/O	Parallel Port Data Signal Bit 2.
3	VDD5	P	5 V Power Supply for 5 V Parallel Port Signals.
4	PDATA[3]	I/O	Parallel Port Data Signal Bit 3.
5	PDATA[4]	I/O	Parallel Port Data Signal Bit 4.
6	GND	P	Ground.
7	PDATA[5]	I/O	Parallel Port Data Signal Bit 5.
8	PDATA[6]	I/O	Parallel Port Data Signal Bit 6.

* An N before symbol names indicates active-low.

Lucent Technologies Inc. 5-3