Homedatasheet82C79

82C79 Datasheet

Transistors (BJT) - Single
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Description

The 82C79 is a programmable keyboard/display interface. The keyboard portion can provide a scanned interface up to 64-contact key matrix. Also, the keyboard portion can interface to an array of sensors or a strobed interface keyboard. Key depressions can be 2-key lockout or N-key rollover.The display portion has 16 x 8 bits display RAM which can be treated as dual 16 X 4 bits.Both right entry and left entry display formats are possible. 82C79 Features • Simultaneous Keyboard Display operation.• Scanned Keyboard mode.• Scanned Sensor matrix mode.• Strobed Input Entry mode.• Built-in 8-Character FIFO or 64 bit Sensor RAM.• Programmable 2-key Lockout or N-key Rollover with contact debounce.• Built-in 16 X 8bit Display RAM• Programmable scan timing.• Extend operating temperature range -40 0C to + 85 0C.
Features

Parameters

[{"Name":"Current - Collector (Ic) (Max) ","Value":"500mA"},{"Name":"Voltage - Collector Emitter Breakdown (Max)","Value":"300V"},{"Name":"Vce Saturation (Max) @ Ib, Ic","Value":"500mV @ 2mA, 20mA"},{"Name":"DC Current Gain (hFE) (Min) @ Ic, Vce","Value":"40 @ 30mA, 10V"},{"Name":"Power - Max","Value":"625mW"},{"Name":"Frequency - Transition","Value":"50MHz"},{"Name":"Package / Case","Value":"TO-226-3, TO-92-3 (TO-226AA) Formed Leads"},{"Name":"","Value":""},{"Name":"","Value":""},{"Name":"","Value":""}]

Manufacturer information

LITTELFUSE

Littelfuse offers innovative circuit protection solutions. Wherever one looks, Littelfuse is there. Streetlights, office buildings, cars, trucks, factories, computers, heating and cooling systems, electronic games, telecommunications equipment, even the satellites in the sky are protected by Littelfuse circuit protection products.

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