| Part Number | 74AC161TTR | 74AC163TTR | 
|---|---|---|
| Manufacturer | STMicroelectronics | STMicroelectronics | 
| Category | Logic - Counters, Dividers | Logic - Counters, Dividers | 
|   |   | |
| Product Status | Obsolete | Obsolete | 
| Logic Type | Binary Counter | Binary Counter | 
| Direction | Up | Up | 
| Number of Elements | 1 | 1 | 
| Number of Bits per Element | 4 | 4 | 
| Reset | Asynchronous | Synchronous | 
| Timing | - | Synchronous | 
| Count Rate | - | 200 MHz | 
| Trigger Type | Positive Edge | Positive Edge | 
| Voltage - Supply | 2 V ~ 6 V | 2 V ~ 6 V | 
| Operating Temperature | - | -55°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 |