CD4511 BCD to 7 Segment IC

CD4511 BCD to 7 Segment Latch/Decoder/Driver

The CD4511 BCD-to-seven segment latch/decoder/driver is constructed with complementary MOS (CMOS) enhancement mode devices and NPN bipolar output drivers in a single monolithic structure. The circuit provides the functions of a 4-bit storage latch, an 8421 BCD-to seven segment decoder, and an output drive capability.Lamp test (LT), blanking (BI), and latch enable (LE) inputs are used to test the display, to turn-off or pulse modulate the brightness of the display, and to store a BCD code, respectively. It can be used with seven-segment light emitting.

Diodes (LED), incandescent, fluorescent, gas discharge, or liquid crystal readouts either directly or indirectly. Applications include instrument (e.g., counter, DVM, etc.) display driver, computer/calculator display driver, cockpit display driver, and various clock, watch, and timer uses.

Features Of CD4511 BCD to 7 Segment Latch/Decoder/Driver

• Low logic circuit power dissipation

• High current sourcing outputs (up to 25 mA)

• Latch storage of code

• Blanking input

• Lamp test provision

• Readout blanking on all illegal input combinations

• Lamp intensity modulation capability

• Time share (multiplexing) facility

 Specification Of CD4511 BCD to 7 Segment Latch/Decoder/Driver

• Supply voltage ranges from 3v to 18v

• Set-up-time is 150, 70, and 40ns at 5v, 10v, and 15v respectively

• Strobe pulse width is 400, 160, and 100ns at 5v, 10v, and 15v respectively

• Hold time is zero

• 100% tested for quiescent current at 20v

• Having high input current of 1uA (max.) at 18v

• Maximum output current sourcing of 25mA

• Operating temperature ranges from -40 °C to 85 °C

• Storage temperature ranges from -65 °C to 150 °C

Related Links

• CD4511 Datasheet

• CH4511 Pinouts & Technical Details

• 7-Segment Display circuit using CD4511

• Interfacing PIC with 7-segment using CD4511