Datasheet > ATA5505

ATA5505

更新时间： 2022-05-06 08:56:26

品牌	Logo	应用领域
爱特美尔 - ATMEL		微控制器
页数	文件大小	规格书
294页	5988K
描述
High Performance, Low Power Atmel AVR 8-bit Microcontroller Advanced RISC Architecture

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数据手册

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ATA5505 数据手册

Atmel ATA5505 [Preliminary]

Figure 1-3. Block Diagram

GND

V_CC

Atmel ATA5505

Watchdog

Power / Reset

EEPROM

Flash

SRAM

AVCC

A/D

converter

Timer

AVR CPU

Reader Frontend

LIN / UART

AGND

Input

Control (0 to 3)

COIL1

COIL2

DGND

Input

SPI

Port B

Port A

PB (0 to 7)

PA (0 to 7)

Figure 1-4 shows the front end in more detail. The circuit block depicted consists of the

receiver, an internal oscillator and driver for the coil, and a power supply unit.

Figure 1-4. Reader Front End Block Diagram

DV_S

V_EXT

V_S

V_Batt

Frontend

Standby

Power supply

Driver

COIL1

= 1

Control (0 to 3)

CFE

Frequency

adjustment

COIL2

DGND

Oscillator

Output

Input

Lowpass filter

Schmitt trigger

HIPASS

9219A–RFID–01/11

1 2 3 456 7 8...294

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