AUTO-ZERO

文件：465.14 Kbytes 页数：14 Pages

NSCNational Semiconductor (TI)

美国国家半导体美国国家半导体公司

SYNCHRONOUS 4-BIT UP/DOWN COUNTERS

Programmable Look-Ahead Up/Down Binary/Decade Counters * Fully Synchronous Operation for Counting and Programming * Internal Look-Ahead for Fast Counting © Carry Output for n-Bit Cascading * Fully Independent Clock Circuit © Buffered Outputs description Thess synchronous p

文件：486.68 Kbytes 页数：12 Pages

TI

德州仪器

1.8V to 28V Input, PWM Step-Up Controllers in 關MAX

General Description The MAX668/MAX669 constant-frequency, pulse-width modulating (PWM), current-mode DC-DC controllers are designed for a wide range of DC-DC conversion applications including step-up, SEPIC, flyback, and isolated output configurations. Power levels of 20W or more can be controlle

文件：326.98 Kbytes 页数：18 Pages

Maxim

美信

fully assembled and tested surface-mount circuit board Evaluation Kit

文件：82 Kbytes 页数：6 Pages

Maxim

美信