Bridge IC. HT42B533-x Datasheet

HT42B533-x IC. Datasheet pdf. Equivalent

HT42B533-x Datasheet
Recommendation HT42B533-x Datasheet
Part HT42B533-x
Description USB to SPI Bridge IC
Feature HT42B533-x; HT42B533-x USB to SPI Bridge IC Features • Operating Voltage (VDD): 3.3V~5.5V • SPI pins Voltage .
Manufacture Holtek Semiconductor
Datasheet
Download HT42B533-x Datasheet




Holtek Semiconductor HT42B533-x
HT42B533-x
USB to SPI Bridge IC
Features
• Operating Voltage (VDD): 3.3V~5.5V
• SPI 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 exter-
nal 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 – SPI
Supports clock rate up to 8MHz
Supports Master and Slave modes decided by AP
command
Supports maximum 128 bytes transmit buffer
and 128 bytes receive buffer
Supports SDI (Master mode) / SCS (Slave mode)
pin resume signal to request a remote wake-up
Supports VDDIO pin for SPI 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: 10-pin MSOP, 16-pin NSOP
General Description
The HT42B533-x is a high performance USB to SPI
bridge controller with fully integrated USB and SPI
interface functions, designed for applications that
communicate with various types of SPI. 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 SPI clock generator.
USB Bridge IC Naming Rules
HT42B 5 3 3 - x
Product Family
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 April 24, 2019



Holtek Semiconductor HT42B533-x
HT42B533-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
Description VDD
USB to I2C
Bridge
USB to SPI
Bridge
USB to UART
Bridge
3.3V~
5.5V
USB
Full-Speed
Virtual
COM
HID FIFO/Buffer
Interface
Data Rate
TX: 62 bytes
RX: 62 bytes
Up to
400kHz
TX: 128 bytes
RX: 128 bytes
Up to 8MHz
TX: 128 bytes Up to 3Mbps
RX: 128 bytes Baud
I/O
VDD
HT42B564-x
USB (HID) to
UART Bridge
TX: 32 bytes
RX: 32 bytes
Up to
115.2kbps
Baud
Package
8SOP,
10MSOP
10MSOP,
16NSOP
8/10SOP,
10MSOP,
16NSOP
10SOP
Block Diagram
HT42B533-x USB to SPI Bridge
VDD
GND
V33O
3.3V
Regulator
Internal
Oscillator
Clock
Generator
D+ USB
D- PHY
USB
Controller
VID
PID
configure
128B
TX
Buffer
128B
RX
Buffer
SPI
PWM
VDDIO
Device
Power
SCS
SDI
SDO
SCK
GPIO
External
Microcontroller
Circuitry
Pin Assignment
VDD
V33O
GND
SCS
SDO
1 10
29
38
47
56
HT42B533-1
10 MSOP-A
D+
D-
SCK
SDI
VDDIO
D+
D-
V33O
GND
SCS
SDO
NC
LED
1 16
2 15
3 14
4 13
5 12
6 11
7 10
89
HT42B533-1
16 NSOP-A
VDD
GPIO0
GPIO1
SCK
GPIO2
SDI
VDDIO
GPIO3/PWM
Package type
10MSOP
16NSOP
Marking
B533-x
HT42B533-x
Note: x=1 for version number.
Rev. 1.10
2 April 24, 2019



Holtek Semiconductor HT42B533-x
HT42B533-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-
SCS
SDO
SDI
SCK
LED
PWM
GPIO0~3
V33O
VDDIO
VDD
GND
Type
I/O
I/O
I/O
O
I
I/O
O
O
I/O
O
PWR
PWR
PWR
Description
USB D+ Line
USB D- Line
SPI slave select
SPI data output
SPI data input
SPI serial clock
Data transfer signal LED indication, active low
Pulse Width Modulator output (Only for 16NSOP package)
GPIO
3.3V Regulator output
Positive power supply for SCS, SDO, SDI, SCK 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 VSS+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
Symbol
Parameter
VDD
VDDIO
IDD
ISUS
VIL
VIH
Operating Voltage
VDDIO Input Voltage for SPI 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
Test Conditions
VDD Conditions
——
——
5V No load
5V
Suspend mode, No load,
USB on, other peripherals off
——
——
3V
5V VOL = 0.1VDDIO
3V
5V VOH = 0.9VDDIO
3V —
5V —
Ta=25°C
Min. Typ. Max. Unit
3.3 — 5.5 V
1.8 — VDD V
— 11 16 mA
— 360 450 μA
0 — 0.2VDDIO V
0.8VDDIO
VDDIO
V
4 8 — mA
10 20 — mA
-2 -4 — mA
-5 -10 — mA
20 60 100
10 30 50
Rev. 1.10
3 April 24, 2019







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