The Maxim ICM7224(LCD) and ICM7225(LED) are high speed 4½ digit counters, featuring segment decoders, leading zero blanking, store and reset inputs, and a carry output that allows cascading of 8 or more digits. The ICM7224 directly drives a non-multiplexed liquid crystal display(LCD). The ICM7225 has 29 constant current outputs for driving a non-multiplexed common anode LED display. These counters operate with inputs from DC to 25MHz while using only 10μA of supply current. A Schmitt trigger on the count input ensures reliable operation in noisy environments and in applications with slowly varying inputs. The ICM7224 and ICM7225 are available in a 44 lead plastic chip carrier package in addition to the standard 40 lead plastic DIP. APPLICATIONS * Unit Counter * Frequency Counter * Tachometer * Hour Meter * Totalizer * Improved 2nd Source! (See 3rd page for "Maxim AdvantageTM"). * High Speed Up Counter: 25MHz Typ. * Leading Zero Blanking * Can Be Cascaded for 8 or More Digits * STORE and RESET Inputs for Frequency Counter Applications https://elecena.pl/product/22305404/4-1-2-digit-lcd-high-speed-counter-decoder-driver 2022-12-25 https://elecena.pl/product/22305404/4-1-2-digit-lcd-high-speed-counter-decoder-driver 2025-01-20