Vendor: CAST Category: MCU

Legacy-Configurable 8051-Compatible Microcontroller IP

The L8051XC1 core implements an MCS®51-compatible microcontroller that is specially designed to match the timing and peripherals …

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Overview

The L8051XC1 core implements an MCS®51-compatible microcontroller that is specially designed to match the timing and peripherals of legacy 8051 MCU based systems.
 
The core can be configured to execute an instruction every 12, 6, or 4 clock cycles. Architectural extensions are user-selectable, including multiple data-pointers, a multiply-division unit, and a power management unit. Furthermore, the 8051 CPU can be coupled with a wide range of peripherals matching the behavior and timing of peripherals found in legacy architectures from various vendors. Several pre-configured versions are offered; custom variations are also available.

The L8051XC1 runs legacy code, but new software development is facilitated through CAST’s on-chip debugging option, and debug pods that cooperate with IAR Embedded Workbench & Keil uVision™ IDEs.
 
This product builds on CAST’s experience with hundreds of 8051 IP customers going back to 1997. Designed for easy reuse in ASICs or FPGAs, the core is strictly synchronous, with positive-edge clocking (except in the optional debug & SPI modules), synchronous reset, and no internal tristates. Representative 40nm ASIC results show the core to be conservative in its use of space, requiring just 7,200 to 40,000 gates. 

Key features

  • Fully compatible with the MCS® 51 instruction set
  • Configurable CPU architecture: 12, 6, or 4 clock cycles per machine cycle
  • Extensive set of optional features and peripherals
  • JTAG-based On-Chip Debug Support (OCDS)
  • Integration with IAR Embedded Workbench & Keil uVision™ IDEs
  • Options and Peripherals

    A wide range of architectural options and peripherals is available for integration with the L8051XC1, and more peripherals can be developed on demand. The following is partial list of the off-the-shelf available peripherals:

  • A wide range of architectural options and peripherals is available for integration with the L8051XC1, and more peripherals can be developed on demand. The following is partial list of the off-the-shelf available peripherals:

Block Diagram

L8051XC1 block diagram

Specifications

Identity

Part Number
L8051XC1
Vendor
CAST
Type
Silicon IP

Files

Product Sheet Download

Note: some files may require an NDA depending on provider policy.

Provider

CAST
HQ: USA
Contact CAST

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Frequently asked questions about MCU IP cores

What is Legacy-Configurable 8051-Compatible Microcontroller IP?

Legacy-Configurable 8051-Compatible Microcontroller IP is a MCU IP core from CAST listed on Semi IP Hub.

How should engineers evaluate this MCU?

Engineers should review the overview, key features, supported foundries and nodes, maturity, deliverables, and provider information before shortlisting this MCU IP.

Can this semiconductor IP be compared with similar products?

Yes. Buyers can compare this product with similar semiconductor IP cores or IP families based on category, provider, process options, and structured technical specifications.

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