CD74AC540M96 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
CD74AC540M96 is an advanced CMOS octal inverting buffer and line driver IC by Texas Instruments with 3-state outputs. Key specs: 8-bit wide, 24 mA output sink current, dual output enable, 20-SOIC package. From $0.55 in stock, worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 20
- Lifecycle
- ACTIVE
- Datasheet
- CD74AC540M96 Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.4887(MOQ 25)
- 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 CD74AC540M96?
- 8-channel inverting line driver with 24 mA sink current per output drives capacitive bus loads and long PCB traces without external buffer transistors
- Dual active-low output enable (OE1, OE2) pins allow independent control of two 4-bit groups, enabling selective bus isolation and power-down in mixed-signal systems
- Advanced CMOS AC-family logic ensures sub-8 ns propagation delay at 5 V supply, suitable for high-speed bus interface designs
- 20-SOIC surface-mount package with RoHS/Pb-free (e4) construction fits automated assembly and high-volume industrial PCB production
What is CD74AC540M96 used for?
CD74AC540M96 is used as a buffered data bus driver in microprocessor systems where 8 data or address lines must be driven with 24 mA sink capability across backplane connectors or ribbon cables exceeding 100 pF load. The inverting function and dual output enable make it suitable for memory bus isolation circuits where individual byte-lane enables are needed in 16-bit or 32-bit bus architectures. It also serves as a signal inverter and high-drive output stage in industrial I/O boards where GPIO outputs have insufficient drive strength for opto-isolator or relay driver loads.
What are the specifications of CD74AC540M96?
| Pbfree Code | Yes |
| Date Of Intro | 2016-08-12 |
| YTEOL | 15 |
| Additional Feature | WITH DUAL OUTPUT ENABLE |
| Family | AC |
| JESD-30 Code | R-PDSO-G20 |
| JESD-609 Code | e4 |
| Logic IC Type | BUS DRIVER |
| Max I(ol) | 0.024A |
| Number of Bits | 8 |
| Number of Functions | 8 |
| Number of Ports | 2 |
| Output Polarity | INVERTED |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 0.16mA |
| Propagation Delay (tpd) | 85ns |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 1.5V |
| 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 | 8542.39.00.90 |
| Country of Origin | Malaysia |
Where can I find the CD74AC540M96 datasheet?
CD74AC540M96 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for CD74AC540M96?
Compatible alternatives and drop-in replacements for CD74AC540M96:
Frequently Asked Questions
What output drive current does CD74AC540M96 provide per channel, and how many bus loads can it drive?
CD74AC540M96 delivers 24 mA IOL sink current and 24 mA IOH source current per output channel, capable of driving up to 32 CMOS unit loads at 5 V supply. This drive strength makes it suitable for backplane bus segments with multiple receiver ICs connected in parallel across 50 cm to 100 cm PCB traces.
How do the dual output enable pins on CD74AC540M96 differ from a single-OE design?
CD74AC540M96 provides two separate active-low OE pins (OE1 and OE2), both of which must be low to enable the outputs. This allows a simple 2-input AND-equivalent gate function at the enable: one pin can be tied to a bus grant signal and the other to a chip select, preventing accidental bus drive without requiring an external gate IC.
What is the propagation delay of CD74AC540M96 at 5 V, and how does it compare to HC-family equivalents?
CD74AC540M96 (AC family) achieves a typical propagation delay of approximately 5 ns to 6 ns at 5 V supply, roughly 2x faster than 74HC540 equivalents which typically exhibit 9 ns to 12 ns delay at 5 V. This speed advantage benefits systems with bus cycle times below 20 ns where HC-family buffer delays create setup-time margin violations.
For a memory interface requiring inverted data strobes, why choose CD74AC540M96 over a non-inverting buffer such as CD74AC541M96?
CD74AC540M96 (inverting) eliminates the need for a separate 8-bit inverter stage when SRAM or EEPROM data inputs expect active-low data strobes from an active-high bus. Combining the inversion and bus drive in one 20-SOIC package saves one IC footprint and reduces signal path propagation by avoiding a two-stage inverter plus buffer chain.
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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 |
|---|---|---|
| 25+ | $0.6400 | $16.00 |
| 100+ | $0.5980 | $59.80 |
| 1000+ | $0.5550 | $555.00 |
| 2000+ | $0.4887 | $977.40 |
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