NXP Semiconductors HEF4543B
The HEF4543B is a BCD to 7-segment latch/decoder/driver for liquid crystal and LED displays. It has four address inputs (D0 to D3), an active LOW latch enable input (LE), an active HIGH blanking input (BL), an active HIGH phase input (PH) and seven buffered segment outputs (Qa to Qg). The circuit provides the function of a 4-bit storage latch and an 8-4-2-1 BCD to 7-segment decoder/driver.FEATURES AND BENEFITS
● Fully static operation● 5 V, 10 V, and 15 V parametric ratings
● Standardized symmetrical output characteristics
● Specified from 40 C to +85 C
● Complies with JEDEC standard JESD 13-B 3. Ordering information Table 1. Ordering information All types operate from 40 C to +85 C Type number Package Name
DESCRIPTION
HEF4543BT SO16 plastic small outline package; 16 leads; body width 3.9 mm Version SOT109-1 NXP Semiconductors 4. Functional diagram HEF4543B BCD to 7-segment latch/decoder/driver /( ' ' ' /$7&+(6 ' %/ '(&2'(5 3+ Fig 1. Functional diagram '5,9(56 4J 4I 4H 4G 4F 4E 4D DDH HEF4543B Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 7 — 1 April 2016 © NXP Semiconductors N.V. 2016. All rights reserved. 2 of 16 NXP Semiconductors %/ ' ' ' ' /( 3+ Fig 2. Logic diagram HEF4543B BCD to 7-segment latch/decoder/driver 4D 4E 4F 4G 4H 4I 4J DDH HEF4543B Product data sheet All information provided in this document is subject to legal disclaimers.