Datasheet Nexperia 74AHC1G4212GW — 数据表

74AHC1G4212
12-stage divider and oscillator
Rev. 2 — 26 October 2016 Product data sheet 1. General description
74AHC1G4212 is a 12-stage divider and oscillator. It consists of a chain of 12 flip-flops.
Each flip-flop divides the frequency of the previous flip-flop by two, consequently the
74AHC1G4212 counts up to 212 = 4096. 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 4096. 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. 2. Features and benefits
пЃ®
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пЃ® 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:
пЃµ HBM JESD22-A114F: exceeds 2000 V
пЃµ CDM JESD22-C101E: exceeds 1000 V
пЃ® Latch-up performance exceeds 100 mA per JESD 78 Class II …