SN74HC193PWG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The SN74HC193PWG4 is a 4-bit bidirectional binary counter in the HC/UH logic family operating up to 17 MHz with separate up/down clocks, preset load capability, and a 50 pF load capacitance rating in a 16-pin TSSOP package. From $0.45 in stock worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- SN74HC193PWG4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of SN74HC193PWG4?
- 4-bit bidirectional binary counter with separate up/down clock inputs enabling independent count direction control up to 17 MHz
- Synchronous preset/load input allows instantaneous loading of any 4-bit value for flexible frequency division and sequencing
- HC/UH family CMOS technology with 50 pF load capacitance rating ensures reliable operation across 2 V to 6 V supply range
What is SN74HC193PWG4 used for?
The SN74HC193PWG4 is commonly used in frequency divider circuits, event counters, and timing state machines in embedded systems and industrial control boards. Its bidirectional counting capability with separate up/down clocks suits rotary encoder position tracking and stepper motor indexing applications. The 16-pin TSSOP package and HC logic compatibility make it a drop-in solution for legacy 74-series counter replacements in digital logic designs.
What are the specifications of SN74HC193PWG4?
| YTEOL | 0 |
| Additional Feature | SEPARATE UP/DOWN CLOCK |
| Count Direction | BIDIRECTIONAL |
| Family | HC/UH |
| 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 | 17000000Hz |
| Max I(ol) | 0.004A |
| Mode of Operation | SYNCHRONOUS |
| Number of Bits | 4 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP16,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Packing Method | TUBE |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 5.2mA |
| Prop. Delay@Nom-Sup | 63ns |
| Propagation Delay (tpd) | 315ns |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 6V |
| Supply Voltage-Min (Vsup) | 2V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Trigger Type | POSITIVE EDGE |
| fmax-Min | 19MHz |
| 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 |
Where can I find the SN74HC193PWG4 datasheet?
SN74HC193PWG4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for SN74HC193PWG4?
Compatible alternatives and drop-in replacements for SN74HC193PWG4:
Binary Counter, HC/UH Series, Synchronous, Positive Edge Triggered, 4-Bit, Bidirectional, CMOS, PDSO16
Binary Counter, HC/UH Series, Synchronous, Positive Edge Triggered, 4-Bit, Bidirectional, CMOS, PDSO16
Frequently Asked Questions
What maximum counting frequency does the SN74HC193PWG4 support and how does this suit event-counting applications?
The SN74HC193PWG4 supports a maximum counting frequency of 17 MHz at nominal supply voltage, making it suitable for event-counting applications such as pulse frequency measurement, encoder quadrature decoding, and digital timer circuits operating well below this limit. At a 50 pF load capacitance, the 17 MHz rating ensures reliable operation in standard PCB trace environments without requiring specialized termination.
How do the SN74HC193PWG4's separate up/down clock inputs simplify bidirectional counter design compared to single-clock alternatives?
Having dedicated up-clock and down-clock inputs on the SN74HC193PWG4 eliminates the need for external direction-select logic, reducing component count in bidirectional counter designs such as rotary encoder interfaces and reversible stepper motor position registers. Each 4-bit count direction is controlled by pulsing the respective clock input independently, simplifying firmware or hardware state machine design operating up to 17 MHz.
When is the SN74HC193PWG4 a preferred choice over microcontroller timer peripherals for hardware counter designs?
The SN74HC193PWG4 is preferred when hardware counter logic must respond to input pulses up to 17 MHz without CPU intervention, such as in high-speed event counting or deterministic pulse generation circuits. A dedicated 4-bit counter IC also offloads MCU timer resources in multi-axis motion control or frequency synthesis systems where 16-pin TSSOP placement and 2 V to 6 V supply flexibility reduce BOM complexity.
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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.
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