HUSB238A

Datasheet

©2023 Hynetek Semiconductor Co., Ltd. All rights reserved.

Page 4 of 22

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS

INT_N

D+

SDA/SNK_VSET

1

2

HUSB238A

3x3 QFN-16L

3

SCL/SNK_ISET

4

9

CC2

D-

CC1

10

11

12

17 GND

EN_N

Figure 2. Pin Assignment

Table 1. Pin Function Descriptions

Pin No. Pin Name

Type1 Description

1

D+

IO

Positive line of the USB data line pair.

2

D−

IO

Negative line of the USB data line pair.

3

CC1

IO

USB Type-C CC1 line.

4

CC2

IO

USB Type-C CC2 line.

5

VDD

P

Input supply 1 for internal circuitry. It is recommended to tie this pin to the single cell

battery or a 3.3 V power rail. When the power is not available this pin, the VBUS pin

may power the internal circuitry. Place a 1μF ceramic capacitor across this pin and

GND pin.

6

DEBUG_N

IO

This pin is push-pull output to indicate the Debug Accessory Detection results.

Low = Debug Accessory detected

High = Debug Accessory not detected

Note: a 900 kΩ resistor to GND should be used.

7

EN_HVDCP/OUT1

IO

Dual function pin. In input mode, this pin (EN_HVDCP) is a digital input pin to enable

the HVDCP protocol detection in Sink mode. HUSB238A may perform different

actions:

Connected to GND = Only perform BC1.2 detection

Connected to VDD = Perform HVDCP detection after BC1.2 DCP is detected

In output mode, this pin (OUT1) is push-pull output whose output status can be

configured by I2C.

Note: a 900 kΩ resistor should be used when connecting to VDD or GND to reduce

standby current.

8

ADDR/ORIENT

IO

Dual function pin. In input mode, this pin (ADDR) is a 3 state input to set the working

mode. The working mode is defined as: