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SOIC8 / SOP8 Test Clip + CH341A USB EEPROM Programmer — 24/25 Series Flash, In-Circuit
SOIC8 / SOP8 Test Clip + CH341A USB EEPROM Programmer 24/25 Series Flash, In-Circuit
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SOIC8 / SOP8 Test Clip + CH341A USB EEPROM Programmer — 24/25 Series Flash, In-Circuit
This kit combines a CH341A USB programmer with a SOIC8/SOP8 test clip for in-circuit reading and writing of 24xx series I²C EEPROMs and 25xx series SPI flash chips without desoldering. The CH341A programmer connects to a PC via USB and is supported by AsProgrammer, NeoProgrammer, and CH341A Programmer software. The SOIC8 test clip clamps directly onto the IC pins for in-circuit access. Includes 5V and 3.3V output for chip power, STC microcontroller support, and a wide range of compatible chip families.
Key Specifications
| Parameter | Value |
|---|---|
| Programmer IC | CH341A (WCH) |
| USB Interface | USB 2.0 (USB Type-A) |
| Supported Protocols | I²C (24xx EEPROM) + SPI (25xx Flash) |
| Output Voltage | 5V and 3.3V (selectable) |
| Test Clip | SOIC8 / SOP8 (8-pin SMD IC clip) |
| In-Circuit Programming | Yes (with test clip, chip powered by programmer) |
| OS Support | Windows (XP/7/10/11) |
Supported Chip Families
| Series | Interface | Examples | Common Use |
|---|---|---|---|
| 24Cxx EEPROM | I²C | 24C01, 24C02, 24C04, 24C08, 24C16, 24C32, 24C64, 24C128, 24C256, 24C512 | TV/monitor EEPROM, automotive ECU config, LCD EDID |
| 25xx SPI Flash | SPI | W25Q32, W25Q64, W25Q128, MX25L3206, GD25Q64 | BIOS/UEFI flash, router firmware, SSD firmware |
| 93Cxx EEPROM | Microwire | 93C46, 93C56, 93C66 | Automotive ECU, immobilizer |
Why Choose CH341A + SOIC8 Clip Kit?
- In-circuit programming — read/write chips without desoldering, saving time and preventing PCB damage
- SOIC8 test clip — clamps onto 8-pin SMD ICs in seconds, spring-loaded for reliable contact
- 24xx + 25xx support — covers both I²C EEPROM and SPI flash in one programmer
- 5V + 3.3V output — powers 5V and 3.3V chips directly from the programmer
- Free software — AsProgrammer and NeoProgrammer are free, actively maintained tools
Compatible With / Common Use Cases
- BIOS/UEFI recovery: Read/write W25Q64/W25Q128 BIOS flash chip on motherboard in-circuit to recover from failed BIOS update
- Router firmware: Read/write SPI flash on router PCB for firmware backup, modification, or recovery
- LCD monitor EDID: Read/write 24C02 EDID EEPROM on LCD monitor to fix resolution or “no signal” issues
- Automotive ECU: Read 93C46/93C66 EEPROM from ECU for key programming or mileage correction
- TV EEPROM repair: Read/write 24C16/24C32 EEPROM in TV mainboard for factory reset or data recovery
Frequently Asked Questions
Q: How do I use the SOIC8 test clip for in-circuit programming?
A: (1) Power off the target device. (2) Clamp the SOIC8 test clip onto the target IC (align pin 1 marker). (3) Connect the clip cable to the CH341A programmer. (4) Connect CH341A to PC via USB. (5) Open AsProgrammer or NeoProgrammer, select the chip model, and read/write. The programmer powers the chip via the clip — ensure the target device is powered off to avoid conflicts.
Q: What software should I use with CH341A programmer?
A: Recommended: AsProgrammer (open-source, actively maintained, supports most 24xx/25xx chips) or NeoProgrammer (wider chip database). Download from GitHub (AsProgrammer) or the developer’s website (NeoProgrammer). Avoid the original CH341A Programmer software — it has a known 3.3V output bug that can damage 3.3V chips. Use AsProgrammer with the 3.3V adapter for 3.3V chips.
Q: Can CH341A damage 3.3V chips?
A: The original CH341A programmer outputs 5V on the SPI/I²C lines, which can damage 3.3V chips (W25Q series, most modern SPI flash). Use a 3.3V voltage adapter (CH341A 3.3V mod board) or a level shifter between the programmer and the chip when working with 3.3V chips. AsProgrammer software with the 3.3V adapter resolves this issue.
Package Contents
- 1× CH341A USB EEPROM/Flash Programmer
- 1× SOIC8 / SOP8 Test Clip with Cable
