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CH554E The WCH CH554E is an enhanced 8-bit USB microcontroller based on the E8051 core. It offers 16KB of program ROM and supports USB Host/Device modes.
Mfr Part #:

CH554E

Available from 2 distributors
Mfr Name: WCH
WCH
The WCH CH554E is an enhanced 8-bit USB microcontroller based on the E8051 core. It offers 16KB of program ROM and supports USB Host/Device modes.
✓ Total Stock: 8,683 pcs
$ Price Range: $2.50

CH554E Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Optech Co.,Limited ✓
Non-Authorised Inventory information
7,086 pcs
On Request
7086 pcs On Request 1 On Request On Request 22+ On Request On Request
Xingangxin ✓
Non-Authorised Inventory information
1,597 pcs
On Request
1597 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

CH554E Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
USB
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CH554E Description

Short technical summary and product information.

The CH554E from WCH is an enhanced 8-bit microcontroller compatible with the MCS51 instruction set, offering significantly faster performance than standard MCS51 devices. It features a 16KB non-volatile program ROM, 256 bytes of internal iRAM, and 1KB of xRAM with DMA support.

 

This MCU integrates a rich set of peripherals including a USB controller supporting both Host and Device modes, 2 UARTs, an SPI interface, 3 timers, 2 PWM outputs, and a 4-channel 8-bit ADC. It also includes capacitive touchkey detection capabilities.

 

The CH554E operates with a system clock frequency of up to 24MHz. Its architecture is designed for efficient data handling, with features like a special XRAM data fast copy instruction and dual DPTR pointers. The device is suitable for a wide range of embedded applications requiring USB connectivity and flexible peripheral integration.

CH554E Quick Information

Product Type: 8-bit Microcontroller
Canonical Name: CH554E 8-bit Enhanced USB MCU
Subcategory: 8-bit MCU

CH554E Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

CH554E Estimated Pricing

Qty Low High
1+ $2.50 $2.50

Estimated market price range - modelled values for guidance only, not live distributor offers.

CH554E Features

  • Enhanced E8051 core for faster execution.
  • 16KB non-volatile program ROM.
  • Integrated USB Host and Device controller.
  • Multiple communication interfaces including 2 UARTs and SPI.
  • Built-in 4-channel 8-bit ADC.

CH554E Applications

  • Embedded systems requiring USB connectivity.
  • Custom human interface devices.
  • Data acquisition and control applications.
  • Prototyping and development platforms.

CH554E FAQs

5 frequently asked questions generated from this part’s specifications.
What is the program memory size of the CH554E?

The CH554E has 16KB of non-volatile program memory ROM.

What USB modes does the CH554E support?

The CH554E supports both USB-Host mode and USB-Device mode.

How many UART interfaces are available on the CH554E?

The CH554E features 2 UART interfaces.

What is the internal RAM size of the CH554E?

The CH554E has 256 bytes of internal iRAM.

Does the CH554E have an Analog-to-Digital Converter?

Yes, the CH554E includes a 4-channel 8-bit analog-to-digital converter.

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