CD74HC244M Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The CD74HC244M is a high-speed CMOS non-inverting octal buffer and line driver with 3-state outputs by Texas Instruments. Key specs: 8 unidirectional channels, dual active-low output enables, 50 pF load capacitance, 20-pin SOIC package. From stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 20
- Lifecycle
- OBSOLETE
- Datasheet
- CD74HC244M Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.2013(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 CD74HC244M?
- Octal non-inverting 3-state outputs with two active-low output enables for flexible bus switching
- High-Speed CMOS (HC) family: low quiescent current with fast switching speeds compatible with TTL levels
- 20-pin SOIC (R-PDSO-G20) surface-mount package for compact PCB layouts
- RoHS compliant (JESD-609 e4), lead-free construction with 6 mA output sink current capability
What is CD74HC244M used for?
The CD74HC244M is suited for unidirectional bus buffering and line driving in microprocessor, DSP, and FPGA systems where 8-bit data or address buses require isolation and drive strength enhancement. Its dual output-enable structure allows gated control of bus segments, making it effective in memory interfaces, peripheral expansion, and backplane drivers. The HC CMOS family ensures low standby power consumption ideal for battery-operated and power-sensitive designs.
What are the specifications of CD74HC244M?
| YTEOL | 0 |
| Additional Feature | TWO ACTIVE-LOW OUTPUT ENABLES |
| Control Type | ENABLE LOW |
| Count Direction | UNIDIRECTIONAL |
| Family | HC |
| JESD-30 Code | R-PDSO-G20 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | BUS DRIVER |
| Max I(ol) | 0.006A |
| Number of Bits | 4 |
| Number of Functions | 8 |
| Number of Ports | 2 |
| Output Characteristics | 3-STATE |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP20,.4 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TUBE |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 0.16mA |
| Prop. Delay@Nom-Sup | 33ns |
| Propagation Delay (tpd) | 165ns |
| 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 | 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 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Malaysia |
Where can I find the CD74HC244M datasheet?
CD74HC244M Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for CD74HC244M?
Compatible alternatives and drop-in replacements for CD74HC244M:
Frequently Asked Questions
What is the CD74HC244M and what logic family does it belong to?
The CD74HC244M is a non-inverting octal buffer and line driver with 3-state outputs belonging to the HC (High-Speed CMOS) logic family by Texas Instruments. HC devices feature wide supply voltage range (2 V to 6 V), low quiescent current, and TTL-compatible input thresholds with CMOS output levels.
How do the output enables work on the CD74HC244M?
The CD74HC244M has two independent active-low output enable pins, one controlling buffers A1–A4 and one controlling buffers A5–A8. When an enable pin is driven high, the corresponding four outputs enter a high-impedance 3-state condition, disconnecting them from the bus and preventing contention with other drivers.
What package and pin count does the CD74HC244M use?
The CD74HC244M comes in a 20-pin Small Outline Integrated Circuit (SOIC) package, JESD-30 designated R-PDSO-G20. The surface-mount package is compatible with standard pick-and-place assembly, with a 1.27 mm pitch making it a common choice for compact PCB designs in consumer and industrial applications.
What is the maximum output current for the CD74HC244M?
The CD74HC244M can sink up to 6 mA (Max I(ol) = 0.006 A) at each output. This output drive strength is sufficient for driving CMOS inputs and small resistive loads, but external buffers or drivers should be considered when driving large capacitive loads or multiple fan-out connections.
What are suitable alternatives to the CD74HC244M?
Alternatives include the SN74HC244 in various packages (TSSOP, PDIP), the CD74HCT244 for TTL-input-compatible systems, or the SN74LVCH244A for 3.3 V low-voltage operation. For higher drive strength, the SN74ABT244 in the ABT family provides faster propagation delays and stronger output drive.
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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+ | $0.3450 | $0.34 |
| 15+ | $0.2875 | $4.31 |
| 71+ | $0.2300 | $16.33 |
| 3479+ | $0.2013 | $700.32 |
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