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CD45114000 Series

七段译码/驱动器

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CD45114000 Series Product Details

The CD4511B BCD-to-seven segment latch/ decoder/driver isconstructed with complementary MOS (CMOS) enhancement modedevices and NPN bipolar out- put drivers in a single monolithicstructure. The circuit pro- vides the functions of a 4-bit storage latch, an 8421 BCD-to- seven segment decoder, and an output drivecapability. Lamp test (LT), blanking (BI), and latch enable (LE) inputsare used to test the display, to turn-off or pulse modulate thebrightness of the display, and to store a BCD code, respectively. It canbe used with seven-segment light emit- ting diodes (LED), incandescent, fluorescent, gas discharge, or liquid crystal readoutseither directly or indirectly. Applications include instrument (e.g., counter, DVM, etc.) displaydriver, computer/calculator display driver, cockpit display driver, andvarious clock, watch, and timer uses.

Features

Low logic circuit power dissipation

High current sourcing outputs (up to 25 mA)

Latch storage of code

Blanking input

Lamp intensity modulation capabilityLamp test provision

Time share (multiplexing) facility

Equivalent to Motorola MC14511