HD74HC4543 Overview
This circuit contains a 4-bit latch, BCD-to-7 segment decoder, and 7 output drivers. Data on the input pins flow through to the output when the Latch Disable (LE) is high and is latched on the high to low transition of the LE input. The Phase input (Ph) controls the polarity of the 7 segment outputs.
HD74HC4543 Key Features
- High Speed Operation: tpd (A, B, C, D to a
- g) = 33 ns typ (CL = 50 pF)
- High Output Current: Fanout of 10 LSTTL Loads
- Wide Operating Voltage: VCC = 2 to 6 V
- Low Input Current: 1 µA max
