MICROCONTROLLERS

The 89C51RB2/RC2/RD2 device contains a non-volatile 16kB/32kB/64kB Flash program memory that is both parallel programmable and serial In-System and In-Application Programmable. 52 pages

The 8051 is the original member of the MCW-51 family, and is the core for allMCS-51 devices. 334 pages.

The AT89C51 is a low-power, high-performance CMOS 8-bit microcomputer with 4K bytes of Flash programmable and erasable read only memory (PEROM). The device is manufactured using Atmel's high-density nonvolatile memory technology and is compatible with the industry-standard MCS-51 instruction set and pinout. The on-chip Flash allows the program memory to be reprogrammed in-system or by a conventional nonvolatile memory programmer. 17 pages.

Not Recommended for New Designs. Use AT89S52. 24 pages.

Display format: 128 x 64 dots. Built-in controller: Samsung KS 0107/KS 0108 (or equivalent). 15 pages.

3 pages.

AT89C5131 is a high-performance Flash version of the 80C51 single-chip 8-bit microcontrollers with full speed USB functions. 176 pages.

The AT89S53 is a low-power, high-performance CMOS 8-bit microcomputer with 12K bytes of downloadable Flash programmable and erasable read only memory. The device is manufactured using Atmel's high-density nonvolatile memory technology and is compatible with the industry-standard 80C51 instruction set and pinout. The onchip downloadable Flash allows the program memory to be reprogrammed in-system through an SPI serial interface or by a conventional nonvolatile memory programmer. 33 pages.

The AT89S8252 is a low-power, high-performance CMOS 8-bit microcontroller with 8K bytes of downloadable Flash programmable and erasable read-only memory and 2K bytes of EEPROM. The device is manufactured using Atmel's high-density nonvolatile memory technology and is compatible with the industry-standard 80C51 instruction set and pinout. The on-chip downloadable Flash allows the program memory to be reprogrammed In-System through an SPI serial interface or by a conventional nonvolatile memory programmer. 41 pages.

The AT89C2051 is a low-voltage, high-performance CMOS 8-bit microcomputer with 2K bytes of Flash programmable and erasable read-only memory (PEROM). The device is manufactured using Atmel's high-density nonvolatile memory technology and is compatible with the industry-standard MCS-51 instruction set. 19 pages.

A good hardware design comes from a proper schematic. Since UC3B devices have a fair number of pins and functions, the schematic for these devices can be large and quite complex. This application note describes a common checklist which should be used when starting and reviewing the schematics for a UC3B design. 13 pages.

Atmel C51 In-Sytem Programmable (ISP) Flash Microcontrollers embed a bootloader memory sector that enables users to perform self-programming in the Application Flash Memory area. This application note explains emulation of the (read/write) code access to Atmel T89C51xx microcontrollers using the Hitex DProbeHS Emulator. 13 pages.

The XC95108 is a high-performance CPLD providing advanced in-system programming and test capabilities for general purpose logic integration. It is comprised of eight 36V18 Function Blocks, providing 2,400 usable gates with propagation delays of 7.5 ns. 9 pages.

The MAXQ2000 microcontroller is a low-power, 16-bit device that incorporates a liquid-crystal display (LCD) interface that can drive up to 100 (-RBX) or 132 (-RAX) segments. The MAXQ2000 is uniquely suited for the blood-glucose monitoring market, but can be used in any application that requires high performance and lowpower operation. 39 pages.

The errata listed in this document describes situations where MAXQ2000 revision A2 components perform differently than expected or differently than described in the data sheet. Dallas Semiconductor intends to correct these errata in subsequent die revisions. 1 page.

The Intel 8051 was a Harvard architecture single chip microcontroller (lC) developed by Intel in 1980 for use in embedded systems. It was extremely popular in the 1980s and early 1990s, but today it has largely been superseded by a vast range of enhanced devices with 8051-compatible processor cores that are manufactured by more than 20 independent manufacturers including Atmel, Maxim IC (via its Dallas Semiconductor subsidiary), Philips, Winbond, and Silicon Laboratories. Intel's official designation for the 8051 family of lCs is MCS 51. 10 pages.

The 89C51RX+ devices contain a non-volatile FLASH program memory (up to 64 k bytes in the 89C51RD+) that is both parallel programmable and Serial In-System Programmable. In-System Programming allows devices to alter their own program memory, in the actual end product, under software control. This opens up a range of applications that can include the ability to field update the application firmware. 50 pages.

The P89V51RD2 is an 80C51 microcontroller with 64 kB Flash and 1024 bytes of data RAM. A key feature of the P89V51RD2 is its X2 mode option. The design engineer can choose to run the application with the conventional 80C51 clock rate (12 clocks per machine cycle) or select the X2 mode (6 clocks per machine cycle) to achieve twice the throughput at the same clock frequency. Another way to benefit from this feature is to keep the same performance by reducing the clock frequency by half, thus dramatically reducing the EMI. 75 pages.

The T89C51AC2 is a high performance Flash version of the 80C51 single chip 8-bit microcontrollers. It contains a 32 KB Flash memory block for program and data. The 32 KB Flash memory can be programmed either in parallel mode or in serial mode with the ISP capability or with software. The programming voltage is internally generated from the standard VCC pin. 117 pages.

This application note describes a personal computer-based programmer for the AT89C51; C52; LV51; LV52; C1051; C2051 Flash-based Microcontrollers. The programmer supports all flash memory microcontroller functions, including code read, code write, chip erase, signature read, and lock bit write. When used with the AT89C51; C52; LV51; LV52, code write, chip erase, and lock bit write may be performed at either five or twelve volts, as required by the device. 8 pages.