CD74HC32M Texas Instruments Integrated Circuit (Other) In Stock
Texas Instruments CD74HC32M is a quad 2-input OR gate in the high-speed CMOS HC family, operating from 2 V to 6 V supply with four independent gate functions in a 14-pin SOIC package. Available from authorized distributors with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 14
- Lifecycle
- OBSOLETE
- Datasheet
- CD74HC32M Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.3595(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 CD74HC32M?
- Quad 2-input OR gate with 4 independent channels in a single 14-pin SOIC, maximizing logic density per package
- Wide 2 V to 6 V supply range with HC-family CMOS speed, delivering propagation delay under 10 ns at 5 V and 50 pF load
- 5.2 mA output drive capability with TTL-compatible input thresholds, enabling direct interfacing between CMOS and TTL logic families
- SOIC-14 surface-mount package in tape-and-reel format for automated SMT assembly in high-volume production
What is CD74HC32M used for?
The CD74HC32M is used in digital logic glue circuits for microprocessor-based systems where signal ORing, bus arbitration, or interrupt combining across 4 independent channels is required at supply voltages from 2 V to 6 V. It suits battery-powered IoT devices and portable instruments that benefit from the HC family's low quiescent current and wide voltage tolerance. PCB designers also use it in FPGA interface boards to combine enable or trigger signals without consuming programmable logic resources.
What are the specifications of CD74HC32M?
| YTEOL | 0 |
| Family | HC |
| JESD-30 Code | R-PDSO-G14 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | OR GATE |
| Max I(ol) | 0.0052A |
| Number of Functions | 4 |
| Number of Inputs | 2 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP14,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TUBE |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 0.04mA |
| Prop. Delay@Nom-Sup | 27ns |
| Propagation Delay (tpd) | 135ns |
| Qualification Status | Not Qualified |
| Schmitt Trigger | NO |
| Supply Voltage-Max (Vsup) | 6V |
| Supply Voltage-Min (Vsup) | 2V |
| 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 |
| Package | Other |
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 | Malaysia |
Where can I find the CD74HC32M datasheet?
CD74HC32M Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for CD74HC32M?
Compatible alternatives and drop-in replacements for CD74HC32M:
Frequently Asked Questions
What supply voltage range does the CD74HC32M support, and how does propagation delay change across that range?
The CD74HC32M operates from 2 V to 6 V. At 5 V with a 50 pF load, typical propagation delay is approximately 7 ns to 9 ns; at 3.3 V it rises to around 11 ns to 13 ns; and at 2 V it can exceed 20 ns. Designers running at lower voltages must budget for the longer propagation times when calculating system timing margins.
Can the CD74HC32M drive TTL loads directly, and what is its output sink current at 5 V?
Yes. The CD74HC32M output stage sinks up to 5.2 mA at V_OL = 0.33 V with a 5 V supply, which meets the drive requirement for one standard TTL input. Its input thresholds are TTL-compatible, allowing it to bridge 5 V TTL outputs to CMOS logic levels without additional level-shift components in mixed-logic systems.
How does the CD74HC32M differ from the CD74HCT32 variant in a 3.3 V microcontroller system?
The CD74HC32M uses CMOS-level input thresholds (V_IH = 3.15 V at 4.5 V supply), while the CD74HCT32 uses TTL-compatible thresholds (V_IH = 2 V) designed for 5 V systems driven by TTL sources. In a 3.3 V microcontroller design, the HC variant is preferred because its lower V_IH threshold is comfortably met by 3.3 V logic outputs, whereas the HCT variant may have marginal input levels at 3.3 V.
What logic combinations across 4 channels can a single CD74HC32M implement in a typical interrupt-merging circuit?
A single CD74HC32M provides 4 independent 2-input OR gates, allowing a designer to merge up to 8 interrupt sources into 4 combined signals using one package. By chaining outputs of two gates into a third, all 4 channels can combine up to 4 input pairs, or 3 gates can be cascaded to merge 6 signals into a single interrupt line serving a microcontroller with minimal propagation overhead beyond 2 gate delays.
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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 |
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| 1+ | $0.7190 | $0.72 |
| 22+ | $0.5188 | $11.41 |
| 36+ | $0.4314 | $15.53 |
| 97+ | $0.4035 | $39.14 |
| 140+ | $0.3595 | $50.33 |
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