USB 转打印口芯片

CH340 是一个 USB 总线的转接芯片，实现 USB 转串口或者 USB 转打印口。\r\n在打印口方式下，CH340 提供了兼容 USB 规范和 Windows 操作系统的标准 USB 打印口，用于将普通的并口打印机直接升级到 USB 总线。有关 USB 转串口的说明请参考手册（一）CH340DS1。 • 全速 USB 设备接口，兼容 USB V2.0。\n• 标准 USB 打印口，用于升级原并口打印机，兼容相关的 USB 规范。\n• 兼容 Windows 操作系统，在 Windows2000 及以上系统下无需驱动程序，应用程序完全兼容。\n• 支持 IEEE-1284 规范的双向通讯，支持单向和双向传输打印机。\n• 由于是通过 USB 转换的打印口，所以只能做到应用层兼容，而无法绝对相同。\n• 软件兼容 CH341，可以直接使用 CH341 的驱动程序。\n• 支持 5V 电源电压和 3.3V 电源电压甚至 3V 电源电压。\n• CH340H 内置时钟，无需外部晶振。\n• 提供S;

SCHOTTKY BARRIER RECTIFIER VOLTAGE 40 Volts CURRENT 350 mAmpere

FEATURE * Small surface mounting type. (SC-74/SOT-457) * High speed. (TRR=10nSec Typ.) * Suitable for high packing density. * Maximum total power disspation is 225mW. APPLICATION * Ultra high speed switching

Small Signal Schottky Diodes

SCHOTTKY BARRIER RECTIFIER VOLTAGE 40 Volts CURRENT 350 mAmpere

THREE TERMINAL POSITIVE FIXED VOLTAGE REGULATORS

Three-Terminal Positive Voltage Regulators These voltage regulators are monolithic integrated circuits designed as fixed–voltage regulators for a wide variety of applications including local, on–card regulation. These regulators employ internal current limiting, thermal shutdown, and safe–area co

THREE TERMINAL POSITIVE FIXED VOLTAGE REGULATORS

Three-Terminal Positive Voltage Regulators These voltage regulators are monolithic integrated circuits designed as fixed–voltage regulators for a wide variety of applications including local, on–card regulation. These regulators employ internal current limiting, thermal shutdown, and safe–area co

SWITCHMODE??Power Rectifirers DPAK Surface Mount Package

SWITCHMODE Power Rectifiers DPAK Surface Mount Package . . . designed for use as output rectifiers, free wheeling, protection and steering diodes in switching power supplies, inverters and other inductive switching circuits. These state–of–the–art devices have the following features: • Extremel

SILICON POWER TRANSISTORS 0.5 AMPERE 300 VOLTS 15 WATTS

High Voltage Power Transistors DPAK For Surface Mount Applications Designed for line operated audio output amplifier, switchmode power supply drivers and other switching applications. • Lead Formed for Surface Mount Applications in Plastic Sleeves (No Suffix) • Straight Lead Version in Plastic

0.5 AMPERE POWER TRANSISTOR NPN SILICON 300 VOLTS 20 WATTS

Plastic Medium Power NPN Silicon Transistor . . . useful for high–voltage general purpose applications. • Suitable for Transformerless, Line–Operated Equipment • Thermopad Construction Provides High Power Dissipation Rating for High Reliability