CD74AC161MG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
Texas Instruments CD74AC161M is a synchronous presettable 4-bit binary counter with terminal count output, load/preset input, and 50 pF load capacitance rating in a 16-pin SOIC package. Part of the AC logic family for high-speed digital counting. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- CD74AC161MG4 Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.5858(MOQ 640)
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of CD74AC161MG4?
- Synchronous presettable 4-bit binary counter with terminal count output for cascading
- AC CMOS logic family providing faster switching than HC with reduced supply current vs. ABT
- 16-pin SOIC package with 50 pF load capacitance supporting high-speed clocked counting circuits
What is CD74AC161MG4 used for?
The CD74AC161M synchronous binary counter is used in digital frequency dividers, address generators, and timing sequencers in communications equipment and digital signal processing boards. Its presettable load input and terminal count output enable straightforward modulo-N counter configurations for clock distribution, event counting, and state machine control in 3.3 V or 5 V CMOS digital systems.
What are the specifications of CD74AC161MG4?
| Pbfree Code | Yes |
| YTEOL | 0 |
| Additional Feature | TCO OUTPUT |
| Count Direction | UP |
| Family | AC |
| JESD-30 Code | R-PDSO-G16 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Load/Preset Input | YES |
| Logic IC Type | BINARY COUNTER |
| Max Frequency@Nom-Sup | 64000000Hz |
| Mode of Operation | SYNCHRONOUS |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP16,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TUBE |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 0.08mA |
| Prop. Delay@Nom-Sup | 15ns |
| Propagation Delay (tpd) | 207ns |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 1.5V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | MILITARY |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Trigger Type | POSITIVE EDGE |
| fmax-Min | 90MHz |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Mexico |
Where can I find the CD74AC161MG4 datasheet?
CD74AC161MG4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for CD74AC161MG4?
Compatible alternatives and drop-in replacements for CD74AC161MG4:
Counter, AC Series, Synchronous, Positive Edge Triggered, 4-Bit, Up Direction, CMOS, PDSO16
Frequently Asked Questions
How does the terminal count output of CD74AC161MG4 simplify cascading multiple 4-bit counter stages?
The terminal count output (TCO) of CD74AC161MG4 goes high when the counter reaches its maximum count of 15, directly enabling the clock enable of the next cascaded stage without additional glue logic. This simplifies building 8-bit, 12-bit, or 16-bit counters from multiple 16-pin SOIC 4-bit stages at AC family switching speeds.
For which high-speed digital timing applications is CD74AC161MG4 better than HC-family counters?
The AC logic family in CD74AC161MG4 switches faster than HC family devices, supporting higher clock frequencies while maintaining CMOS-compatible 3 V to 5.5 V supply operation. For address generators, frequency dividers, and burst counters needing faster propagation delays with 50 pF load drive, CD74AC161MG4 in its 16-pin SOIC package outperforms HC161 equivalents.
Can CD74AC161MG4 be preset to any count value and how does this aid modulo-N counter designs?
Yes, CD74AC161MG4 supports synchronous parallel load through its 4 preset data inputs, allowing the counter to be loaded to any value between 0 and 15 on a clock edge. This enables modulo-N counting by loading a preset value of 16-N on the terminal count pulse, useful for frequency synthesis and timing generation in digital circuits operating from a 5 V supply.
Related Guides
CSD87313DMS Synchronous Buck Power Stage Design Guide
Design a compact CSD87313DMS synchronous buck stage with practical guidance for loss, gate drive, PCB layout, EMI, thermal validation, and sourcing.
Aug 6, 2026
STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection
Choose STEF05SGR for 5 V overcurrent protection by checking current-limit margin, inrush, thermal loss, fault response, and sourcing.
Aug 6, 2026
C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC
Select C0402C103K3RACTU by voltage margin, X7R behavior, tolerance, 0402 assembly risk, and qualified alternatives.
Aug 4, 2026
STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security
Choose STM32H753VIT6 by evaluating memory architecture, LQFP-100 pin fit, connectivity, security, power, and sourcing tradeoffs.
Aug 4, 2026
Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 640+ | $0.5858 | $374.90 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“We've been using FindMyChip for 2 years. Pricing is consistently 20-30% below Mouser/DigiKey for volume orders.”
You May Also Like
ACS770ECB-200U-PFF-T
Allegro Microsystems
Integrated Circuit
ACS770KCB-150U-PFF-T
Allegro Microsystems
Integrated Circuit
MC33901WEF
NXP
Integrated Circuit
MC7808BDTRKG
ON Semiconductor
Integrated Circuit
PA94EC
Apex Microtechnology
Integrated Circuit
AP7315-28SR-7
Diodes Inc.
Integrated Circuit
74HCT245D
Nexperia
Integrated Circuit
CY62256VNLL-70ZXCT
Cypress Semiconductor
Integrated Circuit
EPM7032AETC44-4N
Intel
Integrated Circuit
EPM3512AQC208-10N
Intel
Integrated Circuit
EPM3256ATC144-7N
Intel
Integrated Circuit
EPM3256AQC208-7N
Intel
Integrated Circuit
EPM3256AQC208-10N
Intel
Integrated Circuit
EPM3128ATC100-7N
Intel
Integrated Circuit
EPM1270F256C4N
Intel
Integrated Circuit
EPF8282ATC100-4N
Intel
Integrated Circuit
EPF6016QC208-2N
Intel
Integrated Circuit
EPF6016ATC144-3N
Intel
Integrated Circuit
EPF10K30ATC144-3N
Intel
Integrated Circuit
EPC2TI32N
Intel
Integrated Circuit
EPC2LC20
Intel
Integrated Circuit
EP3SL150F1152C4N
Intel
Integrated Circuit
EP2SGX60DF780C5N
Intel
Integrated Circuit
EP2SGX60CF780C5N
Intel
Integrated Circuit