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VRS51L540 - Versa 8051 MCU

Download the VRS51L540 datasheet PDF. This datasheet also covers the VRS51X540 variant, as both devices belong to the same versa 8051 mcu family and are provided as variant models within a single manufacturer datasheet.

General Description

for QFP-44 T ABLE 1: PIN DESCRIPTIONS FOR QFP-44/ QFP - 44 Name I/O Function QFP - 44 Name I/O Function 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 P0.4/AD4 P0.5/AD5 P0.6/AD6 P0.7/AD7 #EA P2.7/A15 P0.3/AD

Key Features

  • The VRS51x540 is available in 5 (VRS51C540) and 3.3 (VRS51L540) volt versions in PLCC-44, QFP-44 and DIP-40 packages. The VRS51x540 devices operate over the entire industrial temperature range. The Flash memory can be programmed using programmers available from Ramtron or other 3rd party commercial programmers. FIGURE 1: VRS51X540.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (VRS51X540_Ramtron.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number VRS51L540
Manufacturer Ramtron
File Size 1.70 MB
Description Versa 8051 MCU
Datasheet download datasheet VRS51L540 Datasheet

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Other Datasheets by Ramtron

Part Number Description
VRS51L550 (VRS51X550 / VRS51X560) Versa 8051 MCUs
VRS51L560 (VRS51X550 / VRS51X560) Versa 8051 MCUs
VRS51L570 (VRS51X570 / VRS51X580) Versa 8051 MCUs
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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
www.DataSheet4U.com VRS51x540 Datasheet Rev 1.2 Versa 8051 MCU with 4KB Flash Overview The VRS51x540 is a low cost 8-bit microcontroller based on the standard 80C51 microcontroller family architecture. It is pin compatible and is a drop-in replacement for standard 8051 MCUs Aimed at cost effective applications requiring small amounts of program/data memory coupled with streamlined peripheral support, the VRS51x540 includes 4KB of Flash memory, 128 bytes of RAM a UART, three 16-bit timers, a Watchdog timer and power down features. The VRS51x540 is available in 5 (VRS51C540) and 3.3 (VRS51L540) volt versions in PLCC-44, QFP-44 and DIP-40 packages. The VRS51x540 devices operate over the entire industrial temperature range.