 2014 Microchip Technology Inc.

DS00001759B-page 7

UPD1001

Note:

The buffer type for each signal is indicated in the BUFFER TYPE column of Table 2-2, "Pin Descriptions".

A description of the buffer types is provided in Section 2.3, "Buffer Types".

2.1.2

32-SQFN PIN ASSIGNMENTS

The UPD1001 32-SQFN provides two distinct pin configurations (32-A and 32-B) based upon the CFG_SEL0 and

CFG_SEL1 Configuration Select pins. The 32-A and 32-B pin configurations are designed for use with USB Standard-

A and Standard-B receptacles, respectively, and are detailed in Table 2-1. For pin descriptions, refer to Section 2.2, "Pin

Descriptions". For example connection diagrams, refer to Section 2.4, "Power Connection Diagram," on page 18. For

information on the Configuration Select pins, refer to Section 3.3, "Configuration Selection (CFG_SEL0/CFG_SEL1)".

Note:

The 32-A and 32-B pin configuration assignments differ only on pins 14, 15, and 16.

TABLE 2-1:

32-SQFN PACKAGE PIN ASSIGNMENTS

Pin Number

Configuration 32-A Name

Configuration 32-B Name

1

CFG_SEL0

2

CFG_SEL1

3

IFAULT

4

VDD33_CAP

5

VBUS

6

VSW_CAP

7

VTR

8

VDD18A_CAP

9

SPI_ROM_CE_N

10

SPI_ROM_CLK

11

SPI_ROM_DO

12

SPI_ROM_DI

13

VDDIO

14

INSERTION_DETECT

BULK_CAP

15

PD_DETECT

SAFEDB_EN

16

CHG_EMU_EN

NC

17

VMON

18

IMON

19

VDDIO

20

VDD18_CAP

21

PD_VDD18

22

PD_EN_N

23

PD_ID

24

PD_DATA

25

VBUS_DISCHARGE

26

TEST

27

RESET_N

28

VSEL0_N