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| Image | Part Number | Manufacturer | Description | Series | Operating Temperature | Packaging | Mounting Type | Voltage - Supply | Package / Case | Base Part Number | Supplier Device Package | Current - Output High, Low |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 74AC161TTR | STMicroelectronics | IC COUNTER SYNC PRE 4BIT 16TSSOP | 74AC | -55°C ~ 125°C | Original-Reel® | Surface Mount | 2V ~ 6V | 16-TSSOP (0.173", 4.40mm Width) | 74AC161 | 16-TSSOP | - | |
| CD4018BMT | N/A | IC DIV-BY-N COUNTR PRESET 16SOIC | 4000B | -55°C ~ 125°C | Tape & Reel (TR) | Surface Mount | 3V ~ 18V | 16-SOIC (0.154", 3.90mm Width) | 4018 | 16-SOIC | - | |
| MC74AC4040DR2G | AMI Semiconductor / ON Semiconductor | IC COUNTER RIPPLE 12ST 16-SOIC | 74AC | -40°C ~ 85°C | Tape & Reel (TR) | Surface Mount | 2V ~ 6V | 16-SOIC (0.154", 3.90mm Width) | 74AC4040 | 16-SOIC | - | |
| SN74ALS869NTG4 | N/A | IC COUNTER SYNC 8BIT BIN 24DIP | 74ALS | 0°C ~ 70°C | Tube | Through Hole | 4.5V ~ 5.5V | 24-DIP (0.300", 7.62mm) | 74ALS869 | 24-PDIP | - | |
| 74HCT163D,652 | Nexperia | IC SYNC 4BIT BINARY COUNT 16SOIC | 74HCT | -40°C ~ 125°C | Tube | Surface Mount | 4.5V ~ 5.5V | 16-SOIC (0.154", 3.90mm Width) | 74HCT163 | 16-SO | - | |
| SN74AS163NG4 | N/A | IC COUNTER BIN SYNC 4BIT 16-DIP | 74AS | 0°C ~ 70°C | Tube | Through Hole | 4.5V ~ 5.5V | 16-DIP (0.300", 7.62mm) | 74AS163 | 16-PDIP | - | |
| 74HCT161D,653 | NXP Semiconductors / Freescale | IC SYNC 4BIT BINARY COUNT 16SOIC | 74HCT | -40°C ~ 125°C | Tape & Reel (TR) | Surface Mount | 4.5V ~ 5.5V | 16-SOIC (0.154", 3.90mm Width) | 74HCT161 | 16-SO | - | |
| SN74LS161ADR | N/A | IC SYNC 4BIT BIN COUNTR 16-SOIC | 74LS | 0°C ~ 70°C | Tape & Reel (TR) | Surface Mount | 4.75V ~ 5.25V | 16-SOIC (0.154", 3.90mm Width) | 74LS161 | 16-SOIC | - | |
| SN74LV8154PWR | N/A | IC 16BIT BIN COUNTR 3ST 20-TSSOP | 74LV | -40°C ~ 85°C | Tape & Reel (TR) | Surface Mount | 2V ~ 5.5V | 20-TSSOP (0.173", 4.40mm Width) | 74LV8154 | 20-TSSOP | - | |
| 74AC191SJX | AMI Semiconductor / ON Semiconductor | IC COUNTER UP/DOWN 16SOP | 74AC | -40°C ~ 85°C | Tape & Reel (TR) | Surface Mount | 2V ~ 6V | 16-SOIC (0.209", 5.30mm Width) | 74AC191 | 16-SOP | - |
Counters and dividers are sequential logic circuits used to generate repetitive timing signals, count events, or divide clock frequencies in digital systems. Counters increment or decrement a binary value based on clock pulses, producing a sequence of output states that represent specific counting patterns. Dividers divide the frequency of an input clock signal by a fixed or variable factor, generating output signals with reduced frequencies. Counters and dividers are essential components in timing and frequency generation applications, including clock distribution, event counting, frequency synthesis, and digital signal processing.