描述 Description

74AHC1G4215 is a 15-stage divider and oscillator. It consists of a chain of 15 flip-flops. Each flip-flop divides the frequency of the previous flip-flop by two, consequently the 74AHC1G4215 counts up to 215 = 32768. 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 32768.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.

特性 Features

? 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
? ESD protection:
? HBM: ANSI/ESDA/Jedec JS-001 exceeds 2000 V
? CDM: ANSI/ESDA/Jedec JS-002 exceeds 1000 V

? Latch-up performance exceeds 100 mA per JESD 78 Class II
? Specified from -40 °C to +85 °C and from -40 °C to +125 °C