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| Part Number | 74HC4520PW-Q100J | 74HC4020PW-Q100J | 
|---|---|---|
| Manufacturer | NXP USA Inc. | Nexperia USA Inc. | 
| Product Status | Obsolete | Active | 
| Logic Type | Binary Counter | Binary Counter | 
| Direction | Up | Up | 
| Number of Elements | 2 | 1 | 
| Number of Bits per Element | 4 | 14 | 
| Reset | Asynchronous | Asynchronous | 
| Timing | Synchronous | - | 
| Count Rate | 69 MHz | 109 MHz | 
| Trigger Type | Positive, Negative | Negative Edge | 
| Voltage - Supply | 2 V ~ 6 V | 2 V ~ 6 V | 
| Operating Temperature | -40°C ~ 125°C | -40°C ~ 125°C | 
| Mounting Type | Surface Mount | Surface Mount | 
| Package / Case | 16-TSSOP (0.173", 4.40mm Width) | 16-TSSOP (0.173", 4.40mm Width) | 
| Supplier Device Package | 16-TSSOP | 16-TSSOP |