# SN54ALS640BJ - Texas Instruments Octal Bus Transceiver

## Product Summary

The SN54ALS640BJ from Texas Instruments is an octal bus transceiver designed for asynchronous two-way communication between data buses. It features 3-state outputs and TTL input/output.

## Product Information

| Field | Value |
| --- | --- |
| Part Number | SN54ALS640BJ |
| Manufacturer | Texas Instruments |
| Product Type | Octal Bus Transceiver |
| Series | 54ALS |
| Category | Uncategorized |
| Subcategory | Buffers, Drivers, Receivers, Transceivers |

## Description

The Texas Instruments SN54ALS640BJ is an octal bus transceiver designed for asynchronous two-way communication between data buses. It transmits data from the A bus to the B bus or vice versa, controlled by the direction-control (DIR) input. The output-enable input allows for disabling the device, effectively isolating the buses.

This transceiver operates with TTL input and output types and boasts balanced outputs, high speed with a typical propagation delay (tpd) between 10-50ns, and over-voltage tolerant inputs. It is rated for military applications and operates across a wide temperature range of -55°C to 125°C.

The SN54ALS640BJ is available in a 20-pin CDIP (J) package. Other package options include Plastic Small-Outline (DW), Ceramic Chip Carriers (FK), and Standard Plastic (N) and Ceramic (J) 300-mil DIPs. This component is part of the ALS technology family.

Key electrical specifications include 8 channels, a maximum IOL of 12 mA, and a maximum IOH of -12 mA. These characteristics make it suitable for various interfacing applications requiring reliable bidirectional data transfer.

## Key Specifications

| Specification | Value |
| --- | --- |
| Military Grade | Yes |
| Tape & Reel | No |

## Availability and Pricing

| Field | Value |
| --- | --- |
| Stock Status | In Stock |
| Distributor Count | 1 |
| Total Stock | 20 |
| Pricing Available | No |

## Distributor Offers

| Distributor | Stock | Unit Price | MOQ | Lead Time | Last Updated |
| --- | --- | --- | --- | --- | --- |
| PROSOFT ELECTRONICS | 20 |  |  |  |  |

## Features

- Octal bus transceiver with 3-state outputs.
- Designed for asynchronous two-way communication.
- Features TTL input and output.
- Operates over military temperature range.
- High speed with over-voltage tolerant inputs.

## Applications

- Ideal for data bus interfacing.
- Suitable for asynchronous communication.
- Used in systems requiring bus isolation.
- Applicable in military environments.

## Compliance

| Field | Value |
| --- | --- |
| RoHS Status | RoHS3 Compliant |
| REACH Status | REACH Unaffected |
| Moisture Sensitivity Level | 1 Unlimited |

## Documents and Media

- Image: https://static.distyparts.com/disty-files/images/ab/60/b0/j0020a.png
- Product Page: https://distyparts.com/product/sn54als640bj
- RFQ URL: https://distyparts.com/product/sn54als640bj#rfq

## FAQs

### What is the operating temperature range for the SN54ALS640BJ?

The SN54ALS640BJ operates from -55°C to 125°C.

### What type of inputs and outputs does the SN54ALS640BJ have?

The SN54ALS640BJ has TTL input and TTL output types.

### How many channels does the SN54ALS640BJ support?

The SN54ALS640BJ supports 8 channels.

### What is the maximum IOL for the SN54ALS640BJ?

The maximum IOL for the SN54ALS640BJ is 12 mA.

### What is the maximum IOH for the SN54ALS640BJ?

The maximum IOH for the SN54ALS640BJ is -12 mA.

### What package is the SN54ALS640BJ available in?

The SN54ALS640BJ is available in a CDIP (J) package.

## Related Pages

- Manufacturer: https://distyparts.com/manufacturer/texas-instruments
- Category: https://distyparts.com/category/uncategorized/new-products
- Product Page: https://distyparts.com/product/sn54als640bj
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