Bridge IC. HT42B532-x Datasheet

HT42B532-x IC. Datasheet pdf. Equivalent

HT42B532-x Datasheet
Recommendation HT42B532-x Datasheet
Part HT42B532-x
Description USB to I2C Bridge IC
Feature HT42B532-x; HT42B532-x USB to I 2C Bridge IC Features • Operating Voltage (VDD): 3.3V~5.5V • I2C pins Voltage.
Manufacture Holtek Semiconductor
Datasheet
Download HT42B532-x Datasheet




Holtek Semiconductor HT42B532-x
HT42B532-x
USB to I 2C Bridge IC
Features
• Operating Voltage (VDD): 3.3V~5.5V
I2C pins Voltage (VDDIO): 1.8V~VDD (Less than VDD
voltage)
• Fully integrated internal 12MHz oscillator with
0.25% accuracy for all USB modes which requires
no external components
• USB interface
USB 2.0 Full Speed compatible
Implements USB protocol composite device:
– Communication Device Class (CDC) for
communications and configuration.
– Human Interface Device (HID) for user
configure USB VID, PID and device
description strings
Integrated an internal 1.5kΩ pull-high resistor on
D+ pin
• Serial Interface – I2C
Supports clock rate up to 400kHz
Supports Master and Slave modes decided by AP
command
Supports maximum 62 bytes transmit buffer and
62 bytes receive buffer
Supports SDA (Master mode) and SCL or SDA
(Slave mode) pins resume signal to request a
remote wake-up
Supports VDDIO pin for I2C and A0~A1 pins
power supply
• Support standard Windows® drivers for Virtual
Com Port (VCP): Windows XP (SP2), Vista,
Windows 7, Windows 8, Windows 8.1 (only an
INF file is required) and Windows 10.
• Support Android 4.0 or later version and Mac OS
X
• Integrated 256 bytes internal true EEPROM for
user memory
• Power down and wake-up functions to reduce
power consumption
• Package types: 8-pin SOP, 10-pin MSOP
General Description
The HT42B532-x is a high performance USB to I2C
bridge controller with fully integrated USB and I2C
interface functions, designed for applications that
communicate with various types of I2C. The device
includes a USB 2.0 full speed compatible interface
which is used for PC commication. The device also
includes a fully integrated high speed oscillator which
is used for USB and I2C clock generator.
USB Bridge IC Naming Rules
Product Family
HT42B 5 3 2 - x
HT42B = Holtek Bridge IC
Bridge Series of Host
5 = USB
Version
1 = First Version
USB Class type
3 = CDC Class
6 = HID Class
Bridge Series of Device
2 = I2C
3 = SPI
4 = UART
Rev. 1.10
1 December 27, 2017



Holtek Semiconductor HT42B532-x
HT42B532-x
Selection Table
Most features are common to all devices. The following table summarises the main features of each device.
Part No.
HT42B532-x
HT42B533-x
HT42B534-x
HT42B564-x
Description
USB to I2C
Bridge
VDD
USB
Virtual
COM
HID
FIFO/Buffer
TX: 62 bytes
RX: 62 bytes
USB to SPI
Bridge
USB to UART
3.3V~
5.5V
Full-Speed
Bridge
TX: 128 bytes
RX: 128 bytes
TX: 128 bytes
RX: 128 bytes
Interface
Data Rate
Up to 400kHz
Up to 8MHz
Up to 3Mbps
Baud
I/O
VDD
USB (HID) to
UART Bridge
TX: 32 bytes Up to 115.2kbps
RX: 32 bytes
Baud
Package
8SOP
10MSOP
10MSOP
16NSOP
8/10SOP
10MSOP
16NSOP
10SOP
Block Diagram
HT42B532-x USB to I2C Bridge
VDD
GND
V33O
3.3V
Regulator
Internal
Oscillator
Clock
Generator
D+ USB
D- PHY USB
Controller
VID
PID
configure
62B
TX
Buffer
62B
RX
Buffer
I2C
VDDIO
Device
Power
SCL
SDA
A0
A1
External
Microcontroller
Circuitry
Pin Assignment
GND
SDA
VDDIO
SCL
18
27
36
45
HT42B532-1
8 SOP-A
V33O
VDD
D-
D+
VDD
V33O
GND
A1
SDA
1 10
29
38
47
56
HT42B532-1
10 MSOP-A
D+
D-
A0
SCL
VDDIO
Package type
8SOP
10MSOP
Marking
HT42B532-x
B532-x
Note: x=1 for version number.
Rev. 1.10
2 December 27, 2017



Holtek Semiconductor HT42B532-x
HT42B532-x
Pin Descriptions
As the Pin Description table applies to the package type with the most pins, not all of the listed pins may be present
on package types with smaller numbers of pins.
Pin Name
D+
D-
SCL
SDA
A0~A1
V33O
VDDIO
VDD
GND
Type
I/O
I/O
I/O
I/O
O
O
PWR
PWR
PWR
Description
USB D+ Line
USB D- Line
I2C clock line
I2C data/address line
Master mode address configuration pins
3.3V Regulator output
Positive power supply for the SCL, SDA, A0, A1 pins
Positive power supply, USB bus power
Negative power supply, ground
Absolute Maximum Ratings
Supply Voltage ...........................VSS-0.3V to VSS+6.0V
Input Voltage ............................. VSS-0.3V to VDD+0.3V
Storage Temperature ........................... -50°C to 125°C
Operating Temperature ......................... -40°C to 85°C
IOH Total ............................................................. -80mA
IOL Total ...............................................................80mA
Total Power Dissipation ..................................500mW
Note: These are stress ratings only. Stresses exceeding the range specified under "Absolute Maximum Ratings"
may cause substantial damage to this device. Functional operation of these devices at other conditions
beyond those listed in the specification is not implied and prolonged exposure to extreme conditions may
affect device reliability.
D.C. Characteristics
Ta=25°C
Symbol
Parameter
VDD
VDDIO
IDD
ISUS
VIL
VIH
Operating Voltage
VDDIO Input Voltage for I2C Pins
Operating Current
Suspend Current (USB)
Input Low Voltage for Input Pins
Input High Voltage for Input Pins
IOL Sink Current for I/O Pins
IOH Source Current for I/O Pins
RPH Pull-high Resistance for I/O Ports
ILEAK
VV33O
RUDP1
Input Leakage Current
3.3V Regulator Output Voltage
Pull-high Resistance between D+
and V33O
Test Conditions
VDD Conditions
——
Min. Typ. Max. Unit
3.3 — 5.5 V
5V No load
1.8 — VDD
V
— 11 16 mA
5V
Suspend mode, No load,
USB on, other peripherals off
360 450
μA
——
——
3V
5V VOL = 0.1VDDIO
0 — 0.2VDDIO V
0.8VDDIO
VDDIO
V
4 8 — mA
10 20 — mA
3V
5V VOH = 0.9VDDIO
-2 -4 — mA
-5 -10 — mA
3V —
20 60 100
5V —
10 30 50
3V
5V VIN = VDD or VIN = VSS
— — ±1 μA
— — ±1 μA
5V IV33O = 70mA
3.0 3.3 3.6
V
3.3V
-5% 1.5 +5%
Rev. 1.10
3 December 27, 2017







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