74HCT138 Datasheet – 3-to-8 Line Decoder / Demultiplexer

Part Number : 74HCT138


Package : DIP 16, PLCC 20 Pin

Manufacturers : Texas Instruments

Pinouts :
74HCT138 datasheet

Description :

The ’HCT138 devices are designed for high-performance memory-decoding or data-routing applications requiring very short propagation delay times. In high-performance memory systems, these decoders can minimize the effects of system decoding. When employed with high-speed memories utilizing a fast enable circuit, the delay times of these decoders and the enable time of the memory usually are less than the typical access time of the memory. This means that the effective system delay introduced by the decoders is negligible.

Ordering Information

Other data sheets within the file : 54HCT138FK, 54HCT138J, 54HCT138W, 74HCT138D

74HCT138 Datasheet PDF Download

74HCT138 pdf


BQ24728 Datasheet – Battery SMBus Charge Controller – TI

Part Number : BQ24728, BQ728, BQ24728RGRT

Function : Battery SMBus Charge Controller ( Power management , System Charge Power IC )

Package : QFN 20 Pin

Manfacturers : Texas Instruments

Image :

BQ24728 image


The bq24728 is a high-efficiency, synchronous battery charger, offering low component count for space-constraint, multi-chemistry battery charging applications. The device uses two charge pumps to  separately drive n-channel MOSFETs (ACFET, RBFET and BATFET) for automatic system power source selection. SMBus controlled input current, charge current, and charge voltage DACs allow for high regulation accuracies that can be programmed by the system power management micro-controller.


BQ24728 Datasheet, Pinout


1. Portable Notebook Computers, UMPC, Ultra-Thin Notebook, and Netbook
2. Personal Digital Assistant
3. Handheld Terminal
4. Industrial and Medical Equipment
5. Portable Equipment

BQ24728 Datasheet

BQ24728 pdf

BQ24725 Datasheet

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