SN7438DR Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
SN7438DR is a quad 2-input NAND buffer IC with open collector outputs, featuring 48mA sink current, 4.75V-5.25V supply voltage, and TTL logic compatibility in a 14-pin SOIC package. From $0.70 in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 14
- Lifecycle
- ACTIVE
- Datasheet
- SN7438DR Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.7018(MOQ 1)
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of SN7438DR?
- Quad 2-input NAND gate with open collector outputs enabling wired-AND logic and direct LED/relay driving
- High output sink current up to 48mA per output for driving heavy loads
- TTL-compatible logic family with 4.75V to 5.25V supply voltage range
- Low propagation delay with 45pF load capacitance support for high-speed applications
- Industry-standard 14-pin SOIC (SOP-14) package for compact PCB footprint
What is SN7438DR used for?
The SN7438DR is widely used in digital logic systems requiring open-collector NAND buffers, including bus drivers, level shifters, and wired-OR logic configurations. It is ideal for driving LEDs, relays, and other high-current loads directly from TTL logic outputs. Common applications include industrial control systems, embedded processor interface circuits, and legacy TTL-based digital designs requiring robust output driving capability.
What are the specifications of SN7438DR?
| Supply Voltage-Min (Vsup) | 4.75V |
| Pbfree Code | Yes |
| YTEOL | 15 |
| Family | TTL/H/L |
| JESD-30 Code | R-PDSO-G14 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 45pF |
| Logic IC Type | NAND GATE |
| Max I(ol) | 0.048A |
| Number of Functions | 4 |
| Number of Inputs | 2 |
| Output Characteristics | OPEN-COLLECTOR |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP14,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TR, 13 INCH |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 54mA |
| Prop. Delay@Nom-Sup | 22ns |
| Propagation Delay (tpd) | 22ns |
| Qualification Status | Not Qualified |
| Schmitt Trigger | NO |
| Supply Voltage-Max (Vsup) | 5.25V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | TTL |
| Temperature Grade | COMMERCIAL |
| 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 | 8542.39.00.90 |
| Country of Origin | Malaysia |
Where can I find the SN7438DR datasheet?
SN7438DR Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for SN7438DR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the maximum output sink current of the SN7438DR?
The SN7438DR supports a maximum output sink current (I_OL) of 48mA (0.048A) per output. This high sink current capability makes it suitable for directly driving LEDs, small relays, and other moderate-power loads without additional driver circuitry.
What supply voltage range does the SN7438DR operate at?
The SN7438DR operates with a supply voltage (Vcc) ranging from 4.75V minimum to 5.25V maximum, centered around the standard 5V TTL supply rail. It is fully compatible with TTL, LSTTL, and CMOS logic families operating at 5V.
What package type is the SN7438DR available in?
The SN7438DR comes in a 14-pin Small Outline Integrated Circuit (SOIC) package, also known as SOP-14 or PDSO-G14. This surface-mount package enables compact PCB layouts and is compatible with standard pick-and-place assembly processes.
Can the SN7438DR be used to implement wired-AND logic?
Yes. Because the SN7438DR features open-collector outputs, multiple outputs can be connected together to a common pull-up resistor to implement wired-AND (or wired-OR, depending on polarity convention) logic without any additional gates, simplifying bus arbitration and multi-driver circuits.
What are common applications for the SN7438DR?
Typical applications include digital bus drivers, LED indicators, relay drivers, level translators between TTL and higher-voltage circuits, wired-AND logic buses, and interface circuits in industrial control systems, embedded systems, and legacy TTL designs.
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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+ | $1.5100 | $1.51 |
| 10+ | $1.3500 | $13.50 |
| 36+ | $1.1160 | $40.18 |
| 126+ | $0.9000 | $113.40 |
| 201+ | $0.8000 | $160.80 |
| 999+ | $0.7018 | $701.10 |
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