CD4511BCN

CD4511BCN Datasheet


CD4511BC BCD-to-7 Segment Latch/Decoder/Driver

Part Datasheet
CD4511BCN CD4511BCN CD4511BCN (pdf)
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CD4511BC BCD-to-7 Segment Latch/Decoder/Driver

CD4511BC BCD-to-7 Segment Latch/Decoder/Driver

The 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-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.
s Low logic circuit power dissipation s High current sourcing outputs up to 25 mA s Latch storage of code s Blanking input s Lamp test provision s Readout blanking on all illegal input combinations s Lamp intensity modulation capability s Time share multiplexing facility s Equivalent to Motorola MC14511
Ordering Code:

Order Number CD4511BCWM CD4511BCN

Package Number

Package Description

M16B
16-Lead Small Outline Intergrated Circuit SOIC , JEDEC MS-013, Wide

N16E
16-Lead Plastic Dual-In-Line Package PDIP , JEDEC MS-001, Wide

Connection Diagrams

Segment Identification

Top View 2004 Fairchild Semiconductor Corporation DS005991

CD4511BC

Truth Table

Inputs

Outputs

LE BI LT D C B A b c d e f g Display

X 0 XX X 1 11 1

X 0 1 X XX 0 00 0
01 1 0 01 1 10
0 11 0 1 01 1 0
0 1 10 0 1 0 1 10 1 0 1
0 1 00 1 11 0 1
0 1 0 1 00 0 1 0 01 1
01 1 0 1 0 11 0 1 0 11
0 11 0 1 0 00 1
0 1 10 1 11 0
0 1 10 0 1 11 1
0 1 0 01 1 0 01 1
01 1 0 1 00 0 00
0 11 1 0 1 00 0
0 1 11 1 0 00 0
0 1 10 1 0 00 0
01 1 00 0 00
0 11 1 00 0
1 1XXXX

X = Don’t Care *Depends upon the BCD code applied during the 0 to 1 transition of LE.

Display

CD4511BC

Absolute Maximum Ratings Note 1

DC Supply Voltage VDD Input Voltage VIN Storage Temperature Range TS Power Dissipation PD

Dual-In-Line
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Datasheet ID: CD4511BCN 513583