CD4511BM CD4511BC BCD-to-7 Segment Latch Decoder Driver
February 1988
CD4511BM CD4511BC BCD-to-7 Segment Latch Decoder...
CD4511BM CD4511BC BCD-to-7 Segment Latch Decoder Driver
February 1988
CD4511BM CD4511BC BCD-to-7 Segment Latch Decoder Driver
General Description
The CD4511BM CD4511BC 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-toseven 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
Y Y Y Y Y Y Y Y Y
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 Equivalent to Motorola MC14511
Connection Diagram
Dual-In-Line Package
Truth Table
Inputs X X 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 X 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 X X 0 0 0 0 0 0 0 0 1 1...