计数器/分频器

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74AHC1G4208-Q100

8-stage divider and oscillator

应用领域

74AHC1G4208-Q100 is a 8-stage divider and oscillator. It consists of a chain of 8 flip-flops. Each flip-flop divides the frequency of the previous flip-flop by two, consequently the 74AHC1G4208-Q100 counts up to 28 = 256. The single inverting stage (X1 to X2) functions as a crystal oscillator or an input buffer for an external oscillator. When used as a buffer the output X2 should be left floating. The frequency of the output (Q) is the frequency applied to X1 divided by 256. The divider advances on the negative-going transition of X1.

The X1 input is overvoltage tolerant. This feature allows the use of this device as a voltage level translator in mixed voltage environments.

产品详情

特性

  • Automotive product qualification in accordance with AEC-Q100 (Grade 1)

    • Specified from -40 °C to +85 °C and from -40 °C to +125 °C

  • Wide supply voltage range from 2.0 V to 5.5 V

  • Overvoltage tolerant inputs to 5.5 V

  • High noise immunity

  • CMOS low power dissipation

  • Latch-up performance exceeds 100 mA per JESD 78 Class II

  • ESD protection:

    • HBM: ANSI/ESDA/Jedec JS-001 exceeds 2000 V

    • CDM: ANSI/ESDA/Jedec JS-002 exceeds 1000 V

    • MIL-STD-883, method 3015 exceeds 2000 V


参数类型

Type numberProduct statusVCC (V)Output drive capability (mA)Logic switching levelstpd (ns)fmax (MHz)Power dissipation considerationsTamb (°C)Rth(j-a) (K/W)Ψth(j-top) (K/W)Rth(j-c) (K/W)Package name
74AHC1G4208GW-Q100Production2.0 - 5.5± 8CMOS14165low-40~1253030.0174TSSOP5