Ramtron VRS51L570
The VRS51x570 and the VRS51x580 are low cost 8-bit microcontrollers based on the standard 80C51 microcontroller family architecture. They are pin compatible and drop-in replacements for most 8051 MCUs. These devices also include a fifth, 4-bit, I/O port mapped into the “no connect” pins of the standard 8051/52 package.| Part No. | VRS51L570 |
|---|---|
| Datasheet | VRS51L570 Download |
| Manufacturer |  Ramtron |
| Description | Versa 8051 MCUs |
| Buy | Stock & Price |
VRS51x570/580 Datasheet Rev 1.2 Versa 8051 MCUs with 32/64KB Overview Ideal for a wide range of applications requiring large amounts of program/data memory, coupled with comprehensive peripheral support, the VRS51x570/580 devices include 32KB/64KB of Flash memory, respectively, and 1KB of SRAM, 5 PWM output channels, a UART, three 16-bit timers, a Watch Dog timer and power down features. This provides a total of 36 I/Os while maintaining compatibility with standard 80C51/52 pin outs. The VRS51x570 and VRS51x580 are available in PLCC-44, QFP-44 and DIP-40 packages in the Industrial temperature range. The Flash memory can be programmed using programmers from Ramtron or other 3rd party commercial programmer suppliers. FIGURE 1: VRS51X570 / VRS51X580 FUNCTIONAL DIAGRAM Feature Set
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● 80C51/80C52 pin compatible 12 clock periods per machine cycle 32KB / 64KB on-chip Flash memory 1024 Bytes on-chip data RAM 36 I/O lines: P0-P3 = 8-bit, P4 = 4-bit 5-Channel...
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● 80C51/80C52 pin compatible 12 clock periods per machine cycle 32KB / 64KB on-chip Flash memory 1024 Bytes on-chip data RAM 36 I/O lines: P0-P3 = 8-bit, P4 = 4-bit 5-Channel...
