PHILIPS 74HC/HCT4511 BCD to 7-segment latch/decoder/driver handbook

74HC/HCT4511 BCD to 7-segment latch/decoder/driver is a high-speed Si-gate CMOS devices from Philips Semiconductors, with four address inputs (D1 to D4), an active LOW latch enable input (LE), an active LOW ripple blanking input (BI), an active LOW lamp test input (LT), and seven active HIGH segment outputs (Qa to Qg)