CD74HC193M Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
Texas Instruments CD74HC193M is a presettable synchronous 4-bit binary up/down counter with separate up/down clocks and asynchronous reset, clocking at up to 17 MHz, housed in a 16-pin SOIC package. Available from authorized distributors with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- CD74HC193M Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.2850(MOQ 1)
- 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 CD74HC193M?
- Presettable synchronous 4-bit up/down counter with separate up-clock and down-clock inputs enabling flexible count sequences without external glue logic
- Asynchronous parallel load and asynchronous clear allow instant count initialization or reset within a single clock cycle, simplifying state machine design
- Cascadable terminal-count (TCO-UP and TCO-DOWN) outputs enable direct multi-stage ripple-carry chaining to build 8-bit, 12-bit, or wider counters
- HC-family CMOS operates from 2 V to 6 V at up to 17 MHz, providing low power consumption for battery and logic-level flexible designs
What is CD74HC193M used for?
The CD74HC193M is used in frequency dividers, event counters, and timer circuits in embedded systems where a presettable 4-bit count range and bidirectional capability enable both up-counting and down-counting sequences from a programmable initial value without microcontroller overhead. Engineers cascade multiple CD74HC193M devices to build 8-bit or wider counters for address generation in memory-mapped parallel interfaces and waveform synthesis hardware. The 16-pin SOIC package and HC-family 2 V to 6 V supply range also make it suitable for portable instrumentation and industrial control logic where board space and power budget are constrained.
What are the specifications of CD74HC193M?
| YTEOL | 0 |
| Additional Feature | TCO UP AND TCO DOWN OUTPUTS; 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) | 0.0052A |
| Mode of Operation | SYNCHRONOUS |
| Number of Bits | 4 |
| 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 | 46ns |
| Propagation Delay (tpd) | 325ns |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 6V |
| Supply Voltage-Min (Vsup) | 2V |
| Supply Voltage-Nom (Vsup) | 4.5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | MILITARY |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Trigger Type | POSITIVE EDGE |
| fmax-Min | 20MHz |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Mexico |
Where can I find the CD74HC193M datasheet?
CD74HC193M Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for CD74HC193M?
Compatible alternatives and drop-in replacements for CD74HC193M:
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
Binary Counter, HC/UH Series, Synchronous, Positive Edge Triggered, 4-Bit, Bidirectional, CMOS, PDSO16
Frequently Asked Questions
How fast can the CD74HC193M count, and does clock frequency change with supply voltage?
The CD74HC193M supports a maximum clock frequency of 17 MHz at a 4.5 V supply with a 50 pF load. At 2 V the maximum frequency drops to approximately 3 MHz, and at 6 V it can reach around 21 MHz. Designers running the device in 3.3 V systems should derate the clock to roughly 10 MHz to maintain reliable operation with standard CMOS signal integrity margins.
How are two CD74HC193M devices cascaded to form an 8-bit up/down counter?
To cascade two CD74HC193M units into an 8-bit counter, connect the TCO-UP output of the lower 4-bit stage to the CPU (up-clock) input of the upper stage, and connect TCO-DOWN of the lower stage to the CPD (down-clock) input of the upper stage. The carry and borrow pulses propagate automatically, and the parallel load inputs of both stages can be tied together for simultaneous 8-bit preset within one clock cycle.
What is the difference between the CD74HC193M asynchronous clear and the parallel load feature?
The asynchronous clear (MR, active HIGH) immediately forces all 4 counter outputs to 0 regardless of the clock, making it useful for power-on reset circuits that must guarantee a known state. The parallel load (PL, active LOW) is also asynchronous and loads the 4 data inputs (P0–P3) directly into the count register on the falling edge of PL, enabling a non-zero preset value such as starting a countdown from 12 in a divide-by-12 frequency divider.
For a BCD decade counter application, can the CD74HC193M be configured to count only 0 through 9?
Yes. By decoding the state Q3·Q1 (count value 10) with a 2-input AND gate and feeding the output to the parallel load input (PL) while setting the data inputs to 0000, the CD74HC193M resets to 0 on reaching 10, creating a modulo-10 (BCD) count sequence. This technique uses one AND gate and avoids a dedicated BCD counter IC, reducing the solution to 2 standard logic packages in a 2 V to 6 V CMOS system.
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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 |
|---|---|---|
| 1+ | $0.3420 | $0.34 |
| 16+ | $0.2850 | $4.56 |
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