SN74LV8153PWR-P Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The SN74LV8153PWR-P is a serial-to-parallel interface IC by Texas Instruments in a small outline package operating from 1.65 V to 5.5 V. Key specs: 8-bit parallel output, SPI-compatible serial input, and 24 mA output drive capability. Available from stock worldwide with same-day shipping for digital interface designs.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 20
- Lifecycle
- ACTIVE
- Datasheet
- SN74LV8153PWR-P Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 1.65 V to 5.5 V wide supply range enables direct interfacing between 1.8 V microcontrollers and 5 V legacy parallel peripherals
- SPI-compatible serial input with 8-bit parallel output reduces GPIO pin count by up to 6 pins per device in port expansion applications
- 24 mA output drive per channel supports direct LED driving and resistive load switching without external buffer transistors
Applications
The SN74LV8153PWR-P is used in microcontroller systems that need to expand parallel output ports using a serial SPI bus, such as keypad decoders, LED array drivers, and relay control boards. Its 1.65 V to 5.5 V supply range allows mixed-voltage systems where a 3.3 V MCU controls 5 V output peripherals without level translators. Industrial control panels and embedded I/O modules use it to drive indicator LEDs, solenoids, or relay coils from a 2-wire SPI interface.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for SN74LV8153PWR-P:
Frequently Asked Questions
How many GPIO pins does the SN74LV8153PWR-P save on an MCU when expanding parallel output capacity?
The SN74LV8153PWR-P converts a 3-wire SPI interface (clock, data, latch) to 8 parallel outputs, saving 5 GPIO pins per device compared to direct MCU port connections. In a system needing 32 digital outputs, chaining 4 SN74LV8153PWR-P devices consumes only 3 MCU pins instead of 32, freeing those pins for ADC, PWM, or communication functions on a 48-pin MCU where GPIO is often the limiting resource.
Can the SN74LV8153PWR-P directly drive LEDs without external current-limiting transistors in a display application?
Yes, each output pin of the SN74LV8153PWR-P can sink or source 24 mA, sufficient to drive a standard 3 mm or 5 mm LED with a 100 Ω to 330 Ω series resistor from a 3.3 V or 5 V supply at 10 mA to 20 mA. An 8-LED status panel can be driven directly from a single SN74LV8153PWR-P without transistor arrays, reducing the BOM by 8 components and simplifying board layout in a 20 mm × 30 mm indicator module.
What is the maximum SPI clock frequency the SN74LV8153PWR-P supports and how does that affect update rate in a large LED matrix?
The SN74LV8153PWR-P supports SPI clock frequencies up to 25 MHz at 3.3 V supply, allowing an 8-bit register to be loaded in 320 ns. For a 64-LED matrix using 8 chained devices with 64-bit total shift register length, the full array updates in approximately 2.56 µs at 25 MHz — fast enough for 390 kHz PWM dimming cycles, which produces flicker-free dimming above the 200 Hz threshold visible to the human eye.
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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.
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