CH341A

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CH341A

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Spécifications

Manufacturer WCH(Jiangsu Qin Heng)
Package SOP-28-300mil
Voltage - Supply 3.3V
Protocol USB 2.0
Data Rate 2Mbps

Vue d'ensemble

Description

The CH341A is a versatile USB interface chip commonly used for programming EEPROMs, flash memory, and microcontrollers. It acts as a bridge between a computer and various non-volatile memory devices, facilitating data reading, writing, and erasing tasks.
Key features include support for a wide range of memory chips, including 25xx, 93xx, and 24xx series devices, and the ability to interface with both 8-bit and 16-bit data buses. Its USB connection allows for easy integration with PCs, making it a popular choice among hobbyists and professionals for firmware development, data recovery, and hardware repair.
CH341A programmers often come with open-source software tools that provide user-friendly interfaces for interacting with supported devices. Its affordability and functionality have made it a staple in electronics development and troubleshooting. However, users should verify compatibility with specific memory chips and consider using additional protective measures when working with sensitive components.

Features

The CH341A is a versatile USB to parallel and serial interface chip commonly used for programming EEPROMs, flash memory, and microcontrollers. Key features include:
1. USB Connectivity: Provides a USB 2.0 interface for easy connection to PCs.
2. Multi-Functionality: Supports multiple protocols including I2C, SPI, and UART.
3. EEPROM Programming: Capable of programming various types of EEPROMs and flash memory chips.
4. Voltage Compatibility: Works with a range of voltage levels (typically 3.3V to 5V) to accommodate different devices.
5. Driver Support: Compatible with Windows, Linux, and macOS, with available drivers simplifying integration.
6. Ease of Use: Often used with open-source software tools, making it accessible for hobbyists and professionals alike.
7. Affordable: Cost-effective solution for DIY projects and prototyping.
Overall, the CH341A is a reliable and widely-used tool for electronics enthusiasts and professionals for interfacing and programming tasks.

Package

The CH341A is typically packaged in a 16-pin DIP (Dual In-line Package) format. It can also be found in SOIC (Small Outline Integrated Circuit) and TSSOP (Thin Shrink Small Outline Package) configurations, depending on the specific variant and manufacturer.

Pinout

The CH341A is a versatile USB to parallel and serial interface adapter, commonly used for programming EEPROMs, flash memory, and microcontrollers. It typically comes in a 16-pin package.
Here are the pin functions:
1. VCC (Pin 1): Power supply (3.3V or 5V).
2. GND (Pin 2): Ground.
3. D0-D7 (Pins 3-10): Data bus for parallel data transfer.
4. ALE (Pin 11): Address latch enable.
5. CE (Pin 12): Chip enable, activates the device.
6. OE (Pin 13): Output enable, controls output data.
7. WE (Pin 14): Write enable, controls write operations.
8. RESET (Pin 15): Reset pin for initialization.
9. CLK (Pin 16): Clock signal for synchronous operations.
The CH341A is widely used in various applications due to its ease of use and support for multiple protocols.

Manufacturer

The CH341A is manufactured by a company called WCH (Nanjing Weichuang Electronics Co., Ltd.), which is a Chinese semiconductor company. WCH specializes in designing and producing integrated circuits (ICs) and USB-related products, including USB to serial converters, USB to parallel converters, and various microcontrollers. The CH341A, specifically, is a versatile USB interface chip commonly used for programming EEPROMs, flash memory, and other devices in electronics projects and repairs. WCH is known for providing cost-effective solutions in the electronics market, catering primarily to manufacturers and hobbyists in the field of embedded systems and computer peripherals.

Application

The CH341A is primarily used for programming and interfacing with EEPROMs, Flash memory, and microcontrollers. Its applications include data recovery, BIOS chip programming, firmware updates, and device development. Additionally, it is utilized in electronic testing, repairing computers, and working with various embedded systems. Its versatility makes it popular among hobbyists, engineers, and technicians in electronics and hardware development.

Equivalent

Equivalent products to the CH341A chip include the FTDI FT232RL, WCH CH341G, and the CP2102. These chips offer similar USB-to-serial/parallel interfaces and are used for programming and communication with various electronic devices. Each has its specific applications, so compatibility may vary depending on the project requirements.

Expédition

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Référence des frais d'expédition (DHL/FedEx):

DHL: Les frais d'expédition vont de 25 à 45 $ (0,5 kg), avec un délai de livraison estimé de 2 à 5 jours ouvrables.

FedEx: Les frais d'expédition varient de 25 à 40 $ (0,5 kg), avec un délai de livraison estimé de 3 à 7 jours ouvrables.

UPS: Les frais d'expédition vont de 25 à 45 $ (0,5 kg), avec un délai de livraison estimé de 3 à 7 jours ouvrables.

TNT: Les frais d'expédition varient de 25 à 65 $ (0,5 kg), avec un délai de livraison estimé de 3 à 7 jours ouvrables.

EMS: Les frais d'expédition varient de 30 à 50 $ (0,5 kg), avec un délai de livraison estimé de 7 à 15 jours ouvrables.

Courrier aérien enregistré: Le coût d'expédition est de 2 à 4 $ (0,1 kg), avec un délai de livraison estimé de 5 à 20 jours ouvrables.

Paiements

Payment Methods

Le terme de paiement est 100% prépayé.

Actuellement, nous n'acceptons que les méthodes de paiement ci-dessous:

1. PayPal

2. Carte de crédit/débit

3. Transfert bancaire

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