The CD74HC4543 high-speed silicon-gate device is a BCD to 7-segment latch/decoder/driver designed primarily for directly driving liquid-crystal displays. It has an active-high disable input (LD), an active-high blanking input (BI) and a phase input (PH) to which a square wave is applied for liquid-crystal applications. This square wave also is applied to the backplane of the liquid-crystal display.
This device also can be used, in conjunction with current amplifying devices, for driving LEDs, incandescent, fluorescent, and gas-discharge displays. For these applications the phase input provides a means to obtain active-high or active-low segment outputs. (See the Function Table.)
|Part number||Order||Function||Technology Family||VCC (Min) (V)||VCC (Max) (V)||Channels (#)||Voltage (Nom) (V)||F @ nom voltage (Max) (MHz)||ICC @ nom voltage (Max) (mA)||tpd @ nom Voltage (Max) (ns)||Configuration||Type||IOL (Max) (mA)||IOH (Max) (mA)||Rating||Operating temperature range (C)||Package Group||Package size: mm2:W x L (PKG)||Bits (#)||Digital input leakage (Max) (uA)||ESD CDM (kV)||ESD HBM (kV)|
|28||0.08||68||4:7||Standard||1.3||-1.3||Catalog||-55 to 125||PDIP | 16||16PDIP: 181 mm2: 9.4 x 19.3 (PDIP | 16)||7||5||0.75||2|