CD74HCT4520M Datasheet | Texas Instruments

Features - Positive or Negative Edge Triggering - Synchronous Internal Carry Propagation - Fanout (Over Temperature Range) - Standard Outputs - - - 10 LSTTL Loads - Bus Driver Outputs - - . . . 15 LSTTL Loads - Wide Operating Temperature Range . . . -55o C to 125o C - Balanced Propagation Delay and Transition Times - Significant Power Reduction pared to LSTTL Logic ICs - HC Types - 2V to 6V Operation - High Noise Immunity: NIL = 30%, NIH = 30% of VCC at VCC = 5V - HCT Types - 4.5V to 5.5V Operation - Direct LSTTL Input Logic patibility, VIL= 0.8V (Max), VIH = 2V (Min) - CMOS Input patibility, Il ≤ 1µA at VOL, VOH having interchangeable CLOCK and ENABLE lines for incrementing on either the positive-going or the negativegoing transition of CLOCK. The counters are cleared by high levels on the MASTER RESET lines. The counter can be cascaded in the ripple mode by connecting Q3 to the ENABLE input of the subsequent counter while the CLOCK input of the latter is held low. Ordering Information PART NUMBER CD54HC4520F3A CD74HC4518E CD74HC4520E CD74HC4520M CD74HC4520MT CD74HC4520M96 CD74HCT4520E CD74HCT4520M TEMP. RANGE (o C) -55 to 125 -55 to 125 -55 to 125 -55 to 125 -55 to 125 -55 to 125 -55 to 125 -55 to 125 PACKAGE 16 Ld CERDIP 16 Ld PDIP 16 Ld PDIP 16 Ld SOIC 16 Ld SOIC 16 Ld SOIC 16 Ld PDIP 16 Ld SOIC Description The CD74HC4518 is a dual BCD up-counter. The ’HC4520 and CD74HCT4520 are dual binary up-counters. Each device consists of two independent internally synchronous 4-stage counters. The counter stages are D-type flip-flops CD74HCT4520MT -55 to 125 16 Ld SOIC CD74HCT4520M96 -55 to 125 16 Ld SOIC NOTE: When ordering, use the entire part number. The suffix 96 denotes tape and reel. The suffix T denotes a small-quantity reel of 250. Pinout CD54HC4520 (CERDIP) CD74HC4518 (PDIP) CD74HC4520, CD74HCT4520, (PDIP, SOIC) TOP VIEW 1CP 1 1E 2 1Q0 3 1Q1 4 1Q2 5 1Q3 6 1MR 7 GND 8 16 VCC 15 2MR 14 2Q3 13 2Q2 12 2Q1 11 2Q0 10 2E...