Description, Programmable Keyboard / Display Interface. Company, Intel Corporation. Datasheet, Download datasheet. Quote. Find where to buy. Quote. The INTEL is specially developed for interfacing keyboard and display devices The four major sections of are keyboard, scan, display and CPU . Datasheet PDF Download – PROGRAMMABLE KEYBOARD / DISPLAY INTERFACE, data sheet.

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Keyboard Interface of First three bits given below select one of 8 control registers opcode. The model has been scheduled for obsolescence, but may still be purchased for a limited time.

Due to environmental concerns, ADI offers many of our products in lead-free versions. Each counter has a program control word used to select the way the counter operates. It is important to note the scheduled dock date on the order entry screen.

There are 6 modes of operation for each counter: Product Details The AD and AD are general-purpose difference amplifiers intended for precision signal conditioning in power critical applications that require both high performance and low power. The scans RL pins synchronously with the scan. The design of this board emphasizes simplicity and ease of use. BB works similarly except that they blank turn off half of the output pins.

Intel 8279

RL pins incorporate internal pull-ups, no need for external resistor pull-ups. Didn’t find what you were looking for? Also, please note the warehouse location for the product ordered. At least one model within this product family is in production and available for purchase. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc.


This is the acceptable operating range of the device. Pricing displayed is based on 1-piece. This can be one dtasheet 4 stages: International prices may differ due to local duties, taxes, fees and exchange rates.

Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing. DD Function 00 8-digit display with left entry 01 digit display with datasheeh entry 10 8-digit display with right entry 11 digit display with right entry.

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. The model is currently being produced, and generally available for purchase and sampling. Allows half-bytes to be blanked.

Programmable Keyboard/Display Interface –

If a model is not available for web samples, look for notes on the product page that indicate how to request samples or Contact ADI. Sl outputs are active-high, follow binary bit pattern or Counter reloaded if G is pulsed again. View Detailed Evaluation Kit Information. Used internally for timing. Keyboard Interface of Used for controlling real-time events such as real-time clock, events counter, and motor speed and direction control. Model The model number is a specific version of a generic that can be purchased or sampled.

Decoded keyboard with 2-key lockout. Most orders ship within 48 hours of this date. We do take orders for items that are not in stock, so delivery may be scheduled at a future date. The output becomes a logic 0 when the control word is written and remains there until N plus the number of programmed counts. Selects the number of display positions, type of key scan For unity-gain difference amplifiers with similar performance, refer to the AD and AD data sheets.


Temperature Range This is the acceptable operating range of the device. Controls up to a digit numerical display. Other models listed in the table may still be available if they have a status that is not obsolete. Scan line outputs scan both the keyboard and displays. The product is appropriate for new designs but newer alternatives may exist. Chip select that enables programming, reading the keyboard, etc. Interface of WWBB The display write inhibit control word inhibits writing to either the leftmost 4 bits of the display left W or rightmost 4 bits.

Indicates the packing option of the model Tube, Reel, Tray, etc. The model has not been released to general production, but samples may be available. Status Status indicates the current lifecycle of the product. Selects type of display read and address of the read. Pin Count is the number of pins, balls, or pads on the device.

Interrupt request, becomes 1 when a key is pressed, data is available. DD sets displays mode.

SL outputs are active-low only one low at any time. Keyboard Interface of The keyboard matrix can be any size from datasbeet to 8×8. Strobed keyboard, decoded display scan. Provides a timing source to the internal speaker and other devices.

For more information about lead-free parts, please consult our Pb Lead free information page.