Datasheet > AT43USB324YC

AT43USB324YC

更新时间： 2024-11-28 23:32:43

品牌	Logo	应用领域
其他 - ETC		控制器
页数	文件大小	规格书
26页	355K
描述
KEYBOARD CONTROLLER

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中文翻译

获取价格

数据手册

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AT43USB324YC 数据手册

Features

• AVR^®8-bit RISC Microcontroller with 83 ns Instruction Cycle Time

• USB Hub with One Attached and Two External Ports

• USB Keyboard Function with Three Endpoints

• 16K Bytes of Program Memory, 512 Bytes SRAM

• 32 x 8 General-purpose Working Registers

• 34 Programmable I/O Port Pins

• Support for 18 x 8 Keyboard Matrix

• Keyboard Scan Inputs with Pull-up Resistors

• 4 LED Driver Outputs

• One 8-bit Timer/Counter with Separate Prescaler

• External and Internal Interrupt Sources

• Programmable Watchdog Timer

• 6 MHz Oscillator with On-chip PLL

• 5V Operation with On-chip 3.3V Power Supply

• 48-lead SSOP and 48-lead LQFP

USB Multimedia

Keyboard

Controller

Overview

AT43USB324

The Atmel AT43USB324 is a compound USB device designed for use in multimedia

USB keyboards with an embedded hub. Internally, the AT43USB324 consists of a

USB hub and function interface, a hub repeater, and an AVR microcontroller. To the

USB host, the embedded function appears as an attached port of the hub with its own

device address and three endpoints. The third function endpoint makes the

AT43USB324 extremely suitable for keyboards supporting the Consumer Page as

described in the USB HID Usage tables. A typical application of the AT43USB324 is

shown in Figure 1 and block diagrams are shown in Figures 2 and 3.

The AT43USB324 interfaces to the USB host at the transaction layer while the micro-

controller firmware handles the USB protocol layers in addition to performing the

keyboard control functions. Except for LEDs, no other external components are

required for the keyboard function.

Pin Configurations

48-lead SSOP

48-lead LQFP

PD6

PD7

48 PD5

47 PD4

46 VCC

45 CEXT

44 VSS

43 TEST

42 RESET

41 DM0

40 DP0

39 DM2

38 DP2

37 DM3

36 DP3

35 PD3

34 PD2

33 PD1

32 PD0

31 PC0

30 PC1

29 PC2

28 PC3

27 PC4

26 PC5

25 PC6

XTAL1

XTAL2

LFT

TEST

VSS

36 PC1

35 PC2

34 PC3

33 PC4

32 PC5

31 PC6

30 PC7

29 PA0

28 PA1

27 PA2

26 PA3

25 PA4

PE1

PE0

CEXT

VCC

PD4

PB7

PB6

PB5 10

PB4 11

PB3 12

PB2 13

PB1 14

PB0 15

PA7 16

PA6 17

PA5 18

PA4 19

PA3 20

PA2 21

PA1 22

PA0 23

PC7 24

PD5

PD6

PD7

XTAL1

XTAL2 10

LFT 11

PE1 12

Rev. 1941A–02/01

12 3 4 5 6 7...26

中文翻译

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与AT43USB324YC相关器件

型号	品牌	获取价格	描述	数据表
AT43USB325	ATMEL	获取价格	Missed Watchdog Timer Reset
AT43USB325_05	ATMEL	获取价格	Multimedia USB Keyboard Controller with Embedded Hub
AT43USB325E-AC	ATMEL	获取价格	Multimedia USB Keyboard Controller with Embedded Hub
AT43USB325E-AU	ATMEL	获取价格	Multimedia USB Keyboard Controller with Embedded Hub
AT43USB325M-AC	ATMEL	获取价格	RISC Microcontroller, 8-Bit, MROM, AVR RISC CPU, 12MHz, CMOS, PQFP64, 1.40 MM HEIGHT, PLAS
AT43USB326	ATMEL	获取价格	Missed Watchdog Timer Reset
AT43USB326_06	ATMEL	获取价格	Multimedia USB Keyboard Controller with Embedded Hub
AT43USB326-AC	ATMEL	获取价格	Multimedia USB Keyboard Controller with Embedded Hub
AT43USB326-AU	ATMEL	获取价格	Multimedia USB Keyboard Controller with Embedded Hub
AT43USB351M	ATMEL	获取价格	Missed Watchdog Timer Reset

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