Varnitronics
CH377F WCH
WCH

CH377F

480Mbps USB 2.0 QFN-28(4x4) Interface Controllers

QFN-28(4x4)RoHSActive
Manufacturer
WCH
Manufacturer part #
CH377F
Store part #
C22374969
Package / case
QFN-28(4x4)
Packaging
Tape & Reel (TR)
Datasheet (PDF)

Every Order Guarantee

100% Authentic · 30-Day Return or Replacement · policy

5,866 in stock

#C22374969

Stock & price checked 3 days ago

QuantityUnit pricePack price
1+₹256.71₹256.71
10+₹217.91₹2,179.10
30+₹193.83₹5,814.90
100+₹168.91₹16,891.00
500+₹157.85₹78,925.00
1,000+₹152.86₹1,52,860.00

1 × ₹256.71

₹256.71

excl. GST

₹302.92 incl. 18% GST

Need volume or a scheduled delivery? Request a quote
  • Dispatch in 15-18 working days
  • GST invoice with every order
  • Standard pack: 6,000 per reel

CH377F

₹256.71 for 1 + GST

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Specifications

Operating Temperature
-40℃~+85℃
Voltage - Supply
3V~3.6V;1.7V~3.6V
Features
Programmable baud rate;Power-on reset
Applications Function
USB to USB flash drive;USB to UART
Data Rate
480Mbps
Quiescent Supply Current
220uA
USB Protocol
USB 2.0
Current - Supply
48mA

Packaging & compliance

RoHS
RoHS
Lifecycle
Active
Moisture sensitivity
MSL 3 (168 hours)
Packaging
Tape & Reel (TR)
Standard pack
6,000 / Reel
Sold per
Piece
Minimum order
1
Unit weight
0.09 g

Overview

CH377 is an industrial-grade USB 2.0 high-speed card reader controller chip for connecting SD cards, MMC cards, and SPI-interface FLASH chips, converting these storage media into standard USB mass storage devices (i.e., USB flash drives). The CH377A variant additionally integrates a 3-port USB 2.0 high-speed hub, with an upstream port supporting USB 2.0 high-speed and full-speed, and downstream ports supporting high-speed 480 Mbps, full-speed 12 Mbps, and low-speed 1.5 Mbps. The CH377F variant supports a serial logger mode, capable of receiving serial pass-through data in real time and saving it as files to the storage media. The chip features industrial-grade design, suitable for computer and industrial PC motherboards, docking stations, peripherals, and embedded systems.

Key features

  • 480Mbps high-speed USB device interface, requiring only crystal and capacitors as external components
  • Supports SD card, MMC card, and SPI-interface FLASH chips
  • Compatible with SD card specification 2.0 and MMC specification 4.5
  • Single 3.3V power supply
  • CH377F supports serial logger mode for real-time saving of serial pass-through data
  • CH377F supports FAT file system and parameter configuration via configuration file
  • CH377F supports 4-channel GPIO input/output
  • CH377F serial communication baud rate: 2400bps ~ 3000000bps
  • CH377A supports 3-port USB2.0 hub functionality with 3 USB2.0 downstream ports, compatible with USB1.1 specification
  • CH377A hub supports high-performance MTT mode, providing an independent transaction translator per port for full-bandwidth concurrent transfers
  • CH377A supports dual-disk functionality: SD card or MMC card as Disk 1, SPI-interface FLASH chip as Disk 2
  • CH377A supports 4-wire or 8-wire SDIO mode; CH377F supports 4-wire SDIO mode only
  • Built-in EEPROM for configuring VID, PID, maximum current, manufacturer and product information strings, and other parameters
  • Available in QFN28 lead-free package, RoHS compliant

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