Texas Instruments

7493 Datasheet PDF – Decade and Binary Counter, 14 Pin

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This is a kind of TTL.

Part Number: 7493

Function: Decade and Binary Counter

Package: DIP, SOP 14 Pin Type

Manufacturer: National ( Texas Instruments )

Pinouts:

7493 pinouts

 

Description

This is Decade and Binary Counter.

Each of these monolithic counters contains four master slave flip-flops and additional gating to provide a divide-by two counter and a three-stage binary counter for which the count cycle length is divide-by-five for the 90A and divide by-eight for the 93A.

All of these counters have a gated zero reset and the 90A also has gated set-to-nine inputs for use in BCD nine’s complement applications.

Block Diagram

7493 datasheet, block diagram

Features

1. Typical power dissipation :

(1) 7490A 145 mW

(2) 7493A 130 mW

2. Count frequency 42 MHz

Acquired by Texas Instruments on September 23rd, 2011.

Other data sheets are available within the file:  7490A, 7493A, DM5490, DM5490J

7493 Datasheet PDF

7493 datasheet pdf

75A176 Datasheet PDF – Differential Bus Transceiver

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Part Number: SN75ALS176D, SN75ALS176DR

Marking : 75A176

Function: Differential Bus Transceiver

Package: SO 8 Pin Type

Manufacturer: Texas Instruments

Image:

75A176

Description

The 75A176 is differential bus transceiver.

The SN65ALS176 and SN75ALS176 series differential bus transceivers are designed for bidirectional data communication on multipoint bus transmission lines. They are designed for balanced transmission lines and meet TIA/EIA-422-B, TIA/EIA-485-A, and ITU Recommendations V.11 and X.27.

The SN65ALS176 and SN75ALS176 series combine a 3-state, differential line driver and a differential input line receiver, both of which operate from a single 5-V power supply. The driver and receiver have active-high and active-low enables, respectively, that can be connected together externally to function as a direction control.

The driver differential outputs and the receiver differential inputs are connected internally to form a differential input/output (I/O) bus port that is designed to offer minimum loading to the bus when the driver is disabled or VCC = 0. This port features wide positive and negative common-mode voltage ranges, making the device suitable for party-line applications.

Pinouts
SN75ALS176 datasheet

 

Features

1. Wide Positive and Negative Input/Output Bus-Voltage Ranges

2. Thermal Shutdown Protection

3. Driver Positive and Negative Current Limiting

4. Receiver Input Hysteresis

5. Glitch-Free Power-Up and Power-Down Protection

6. Receiver Open-Circuit Fail-Safe Design

75A176 Datasheet PDF Download


SN75ALS176 pdf

Other data sheets are available within the file: SN65ALS176DR, SN65ALS176P, SN65LBC176D, SN65LBC176DR