Key facts
- Manuals
- 10
- Models
- 3
- Languages
- EN · ZH
- Last added
- 2012-05-03
Almel models by category
Featured Almel manuals
Atmel ATmega329P/V and ATmega3290P/V Datasheet
The ATmega329P/V and ATmega3290P/V are low‑power 8‑bit AVR microcontrollers with up to 32 Kbytes of flash, 1 Kbyte EEPROM, and 2 Kbytes SRAM. They offer 54 or 69 programmable I/O lines, multiple timer/counter units, an 8‑channel 10‑bit ADC, and a full JTAG interface for debugging and programming.
The document provides a block diagram, detailed pin‑out tables, and descriptions of each port (A‑J) and special pins such as RESET, XTAL1/2, AVCC, AREF, and LCDCAP. Electrical characteristics, speed grades, and power‑saving modes (Idle, Power‑down, Power‑save, Standby) are also listed.
Covers: Features · Pin Configurations · Block Diagram · Port Descriptions · Electrical Specifications · Package Options
Atmel ATA5745/ATA5746 Effect of RF System Parameters on Receiver Sensitivity Application Note
The note introduces the importance of receiver sensitivity in short‑range RF designs and defines key terms such as BER and jitter. It then describes the super‑heterodyne receiver architecture used in the ATA5745/ATA5746 devices.
Measurements are presented that show how data rate, modulation type, BER and jitter window size influence the minimum detectable signal. The document concludes with practical recommendations for comparing receivers and highlights the parameters that have the greatest impact on sensitivity.
Covers: Introduction · Super Heterodyne Receiver · Receiver Sensitivity Terminology · Sensitivity Measurements · Sensitivity as a Function of Data Rate · Sensitivity as a Function of Modulation
Atmel AT91SAM7S64 Datasheet
The AT91SAM7S64 is a 32‑bit ARM7TDMIe microcontroller from Atmel featuring 64 KB of on‑chip Flash, 16 KB of SRAM, and a rich set of peripherals including USB, USART, SPI, PWM, ADC and a programmable clock generator. It targets low‑cost, high‑volume consumer applications that need extra processing power and memory.
The device is offered in a 64‑lead LQFP package. Power is supplied through six dedicated pins with on‑chip regulators supporting single‑supply operation. Detailed pin‑out tables, signal descriptions, and voltage‑regulator specifications are provided, along with power‑consumption figures for various operating modes. This manual is written in Chinese.
Covers: Features · Signal Description · Pinout · Power Considerations · Package · Revision History
Atmel AT89S52 Microcontroller Datasheet
The AT89S52 is a low‑power, high‑performance CMOS 8‑bit microcontroller with 8 KB in‑system programmable flash memory, 256 B RAM and 32 programmable I/O pins. It includes three 16‑bit timers/counters, a full‑duplex UART, a watchdog timer and supports both idle and power‑down modes.
The document provides detailed information on pin functions, special function registers, memory organization, interrupt control, oscillator characteristics, and programming procedures for flash memory, including required voltage levels and timing sequences. This manual is written in Chinese.
Covers: 主要性能 · 引脚结构 · 特殊寄存器映象 · 定时器 2 控制寄存器 · 存储器结构 · 看门狗定时器
Latest Almel manuals
ALMEL 8-bit Low-Voltage Microcontroller with 8K Bytes In-System Programmable Flash AT89LS52 Preliminary Manual
The AT89LS52 is a low-voltage, high-performance CMOS 8-bit microcontroller with 8K bytes of in-system programmable Flash 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 on-chip Flash allows the program memory to be reprogrammed in-system or by a conventional nonvolatile memory programmer. By combining a versatile 8-bit CPU with in-system programmable Flash on a monolithic chip, the Atmel AT89LS52 is a powerful microcontroller which provides a highly-flexible and cost-effective solution to many embedded control applications. The AT89LS52 provides the following standard features: 8K bytes of Flash, 256 bytes of RAM, 32 I/O lines, Watchdog timer, two data pointers, three 16-bit timer/counters, a six-vector two-level interrupt architecture, a full duplex serial port, on-chip OS.
Atmel ATmega329P/V and ATmega3290P/V Datasheet
Datasheet 360 pages · 3.5 MB · ENThe Atmel ATmega329P/V and ATmega3290P/V datasheet details features, pin configurations, electrical specifications, and package options.
Atmel ATA5745/ATA5746 Effect of RF System Parameters on Receiver Sensitivity Application Note
Application Note 14 pages · 815 KB · ENThis application note explains how data rate, modulation, BER, jitter window and frequency deviation affect the sensitivity of Atmel ATA5745/ATA5746 receivers.
ALMEL 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash ATtiny25/V* ATtiny45/V ATtiny85/V Manual
Atmel AT91SAM7S64 Datasheet
Datasheet 474 pages · 6.6 MB · ZHThe AT91SAM7S64 datasheet provides specifications, pinout, power requirements, and peripheral features of Atmel's 32‑bit ARM7TDMI microcontroller.
Atmel AT89S52 Microcontroller Datasheet
Datasheet 19 pages · 353 KB · ZHTechnical data sheet for the Atmel AT89S52 8‑bit microcontroller, covering specifications, pinout, registers and operation modes.
Almel ATmega8535 ATmega8535L micro controller Manual
Datasheet 298 pages · 2.6 MB · ZHThe ATmega8535 datasheet provides specifications, pin configurations, and functional details for the 8‑bit AVR microcontroller.
ALMEL ATmega8 ATmega8L micro controller Manual
User Manual 284 pages · 2.4 MB · ZHOfficial manual for the Atmel ATmega8 microcontroller covering features, pinout, and operation details.
Atmel ATmega128/ATmega128L Datasheet
Datasheet 360 pages · 3 MB · ZHTechnical data sheet for the Atmel ATmega128 and ATmega128L 8‑bit microcontrollers.
Almel ATmega128 ATmega128L programming Flash Guide
Datasheet 360 pages · 2.9 MB · ZHTechnical data sheet for the Atmel ATmega128 8‑bit microcontroller.
Which document do I need?
Datasheet
Ratings, dimensions and ordering codes, for selection and design work.
Application Note
How to use the product for one specific task, with worked examples.
User Manual
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in Almel manuals
How many programmable I/O pins are available?
The ATmega329P has 54 programmable I/O lines, while the ATmega3290P has 69.
What is the active‑mode current consumption?
In active mode the device draws 420 pA at 1 MHz with a 1.8 V supply.
What BER is used as the default for the sensitivity graphs?
The default bit‑error‑rate used in the graphs is 10⁻³.
From: Atmel ATA5745/ATA5746 Effect of RF System Parameters on Receiver Sensitivity Application Note
What core does the AT91SAM7S64 use?
It uses an ARM7TDMIe 32‑bit RISC core.
What is the maximum operating frequency of the AT91SAM7S64?
The microcontroller can run up to 30 MHz.
What is the flash memory size of the AT89S52?
The AT89S52 contains 8 KB of in‑system programmable flash memory.