Manufacturer Part Number

TS80C32X2-VCE

Description

8-bit microcontroller, 80C51 core, ROMless design. Housed in a 44-pin very thin quad flat package (VQFP). Operates at 60/30 MHz, suitable for embedded use where external program memory is required. Obsolete model, original and new stock available (1175 pcs).

Specifications

Core: 80C51, 8-bit

Operating speed: 60 MHz / 30 MHz

Package: 44-pin VQFP (QFP surface mount)

RAM onboard: 256 x 8 bytes

Operating voltage: 4.5V to 5.5V

Number of input/output lines: 32

Program memory: None (ROMless)

Connectivity: UART/USART

On-chip peripherals: Power-On Reset (POR)

Oscillator: Internal

Operating temperature: 0°C to 70°C

Moisture sensitivity: Level 3 (168 hours floor life)

RoHS status: Non-compliant

REACH status: Unaffected

Device Structure

Single-chip microcontroller using 80C51 architecture. No program memory, will require external ROM or Flash. All required control, I/O, and RAM integrated on chip, and housed in a 44-pin VQFP. Supports external clock and reset management.

Performance Characteristics

High operation speed up to 60 MHz for 8-bit microcontroller class. Stable supply voltage range (4.5V~5.5V). Provides 256 bytes of scratchpad RAM. UART/USART support for serial communication. Can manage up to 32 digital I/O.

Application Environments

General embedded system applications where custom external program memory is required. Common in older industrial controls, legacy equipment, and designs requiring 80C51 compatibility. Not suitable for new greenfield projects due to obsolescence and RoHS non-compliance.

Selection Guidelines

Best used for maintenance or replacement in existing legacy systems designed around the 80C51 core, and where board layout matches 44-QFP footprint. Ensure you have external ROM or Flash to store your application code. Check voltage and temperature requirements match your system. Not recommended for new projects due to obsolete status and RoHS restrictions.

Usage Considerations

Not suitable for new large-scale manufacturing due to part being obsolete and not RoHS compliant (may face import restrictions in certain regions). Must use surface mount assembly. Handle according to MSL 3 guidelines to avoid moisture damage. External program storage required. Power supply must be steady between 4.5V and 5.5V. Maximum ambient temperature is 70°C.

Potential Equivalent/Replacement Models

There are no direct, drop-in, fully equivalent Microchip models currently in production with identical features and package. Some common alternate 80C51 core MCUs from other suppliers include:

NXP (formerly Philips) P89C51 and derivatives

Atmel (now Microchip) AT89C51 series

Silicon Labs C8051 series (different features and peripherals, will require board and software changes)

STMicroelectronics STC89 series (Chinese market, not always globally available)

Exact pin-to-pin and function-to-function replacements are rare since ROMless variants are less common and many have been discontinued. For exact cross reference, please contact Ariat-Tech sales team for up-to-date alternative sourcing.

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