ON Semiconductor MC14511BFEL

Description
The MC14511B BCD-to-seven segment latch/decoder/driver is a monolithic structure that combines complementary MOS (CMOS) enhancement mode devices and NPN bipolar output drivers. It functions as a 4-bit storage latch, an 8421 BCD-to-seven segment decoder, and an output drive. The device features lamp test (LT), blanking (BI), and latch enable (LE) inputs for display testing, brightness modulation, and BCD code storage. It can drive seven-segment light-emitting diodes (LEDs), incandescent, fluorescent, gas discharge, or liquid crystal readouts directly or indirectly.

Features
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
Supply voltage range: 3.0 V to 18 V
Capable of driving two low-power TTL loads, one low-power Schottky TTL load, or two HTL loads over the rated temperature range
Chip complexity: 216 FETs or 54 equivalent gates
Triple diode protection on all inputs
Pb-Free packages available

Applications
Instrument display driver (e.g., counter, DVM)
Computer/calculator display driver
Cockpit display driver
Clock, watch, and timer uses