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Datenblatt-Suchmaschine für elektronische Bauteile |
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Datenblatt-Suchmaschine für elektronische Bauteile |
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UR5HC418-FN Datenblatt(PDF) 1 Page - Semtech Corporation |
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UR5HC418-FN Datenblatt(HTML) 1 Page - Semtech Corporation |
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1 / 14 page  DeskCoderTM UR5HC418 AT / PS/2 - Compatible Keyboard Encoder DeskCoder and KeyCoder are trademarks of Semtech Corporation. All other trademarks belong to their respective companies. Copyright ©1997-2001 Semtech Corporation DOC5-418-DS-109 www.semtech.com 1 HID & SYSTEM MANAGEMENT PRODUCTS, KEYCODERTM FAMILY DESCRIPTION FEATURES • Desktop computers • Instrumentation • Industrial keyboards • Point of sales terminals • Public information kiosks The DeskCoderTM keyboard encoder functions as a versatile, low-power desktop keyboard encoder, while providing two bi-directional channels for communication with a BIOS-compatible system as well as any optional keyboard-compatible devices, such as a 101/102/104 desktop keyboard, OCR, barcode reader, etc. The DeskCoderTM fully supports the IBM standard keyboard communi- cation protocol; each key press generates one of the scan codes designated in the IBM Technical Reference Manuals. The keyboard encoder handles the scanning, debounce, and encoding of 128 keys organized on an 8 x 16 matrix. In addition to the system’s keyboard communication port, the UR5HC418 provides a fully functional keyboard input port that can be used by a standard 101/102/104 keyboard or another 8042-compatible device, such as an external numeric keypad, an OCR, or a bar-code reader. Input from both the matrix and the external device is multiplexed and presented to the system as if it were coming from a single source. The DeskCoderTM is ideal for use in low-power, low-cost and high- reliability AT / PS/2 - compatible keyboard designs. Note: A version of the IC that supports the PC/XT protocol is also available. Contact Semtech for more information. • Implements all functions of a 101/102/104 keyboard • Low-power HCMOS microcontroller, suitable for 3-volt battery-operated systems • Available in DIP, PLCC and QFP packages • Custom versions available in small or large quantities • Interfaces contact switch matrix keyboards to a BIOS-compatible system • Single IC desktop keyboard encoder • Provides interface for an external keyboard/keypad or other 8042- compatible devices • AT / PS/2 - compatible RP KD KC EKC EKD CL C0 C1 C2 C3 C4 R7 SL R5 R4 R3 R2 R1 R0 C8 C9 C10 40 1 6 7 12 17 18 23 28 29 34 39 PLCC 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 _RESET _IRQ VX NL R6 RP KD KC EKC EKD CL C0 C1 C2 C3 C4 C5 C6 C7 VSS/GND VCC OSCI OSCO EKC1 R7 SL R5 R4 R3 R2 R1 R0 C8 C9 C10 C11 C12 C13 C14 C15 DIP R6 RP KD KC EKC EKD CL C0 C1 C2 C3 NL R5 R4 R3 R2 R1 R0 C8 C9 C10 C11 1 QFP APPLICATIONS PIN ASSIGNMENTS |
Ähnliche Teilenummer - UR5HC418-FN |
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Ähnliche Beschreibung - UR5HC418-FN |
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