SN74AHC595PWR-P Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
SN74AHC595PWR-P is an 8-bit serial-in parallel-out shift register from Texas Instruments in 16-pin TSSOP package. Features 3-state output register, 2 V to 5.5 V supply range, and cascadable serial output for expanding GPIO. From $0.30 in stock worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- SN74AHC595PWR-P Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 8-bit serial-to-parallel expansion enabling microcontroller GPIO to drive up to 8 outputs via 3 control pins
- 3-state output register allowing multiple SN74AHC595 devices to share a common output bus
- Wide 2 V to 5.5 V supply range for compatibility with 3.3 V and 5 V logic systems
- Cascadable Q7S serial output for chaining multiple 8-bit shift registers to drive 16, 24, or 32 outputs
Applications
SN74AHC595PWR-P is widely used to expand microcontroller output capability for driving LED matrices, relay banks, and 7-segment displays using only 3 SPI-compatible control lines. It is also used in industrial I/O expanders and embedded display controllers where a small number of MCU pins must control more than 8 digital outputs simultaneously.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for SN74AHC595PWR-P:
Serial In Parallel Out, AHC/VHC/H/U/V Series, 8-Bit, Right Direction, True Output, CMOS, PDSO16
Serial In Parallel Out, AHC/VHC/H/U/V Series, 8-Bit, Right Direction, True Output, CMOS, PDSO16
Serial In Parallel Out, AHC/VHC/H/U/V Series, 8-Bit, Right Direction, True Output, CMOS, PDSO16
Serial In Parallel Out, AHC/VHC/H/U/V Series, 8-Bit, Right Direction, True Output, CMOS, PDSO16
Serial In Parallel Out, AHC/VHC/H/U/V Series, 8-Bit, Right Direction, True Output, CMOS, PDSO16
Frequently Asked Questions
How many outputs can SN74AHC595PWR-P drive and what control signals does it require?
SN74AHC595PWR-P provides 8 parallel outputs controlled by just 3 signals: serial data (SER), shift clock (SRCLK), and latch clock (RCLK). Multiple devices can be cascaded via the Q7S serial output to expand the output count to 16, 24, or 32 bits while still using the same 3 microcontroller pins.
What supply voltage range does SN74AHC595PWR-P support for 3.3 V and 5 V systems?
SN74AHC595PWR-P operates from 2 V to 5.5 V, making it directly compatible with both 3.3 V and 5 V microcontroller I/O without level shifting. The AHC logic family provides output drive capability up to ±8 mA per pin at 3.3 V, sufficient for driving LEDs through current-limiting resistors.
What is the purpose of the 3-state output register in SN74AHC595PWR-P?
The 3-state outputs of SN74AHC595PWR-P can be disabled via the OE pin, placing all 8 output lines into high-impedance state. This allows multiple SN74AHC595 devices to share a common 8-bit parallel bus, enabling bus arbitration or multiplexed output schemes in systems with limited wiring harnesses.
In which LED matrix or display driving application is SN74AHC595PWR-P most commonly deployed?
SN74AHC595PWR-P is commonly used to drive 8-digit 7-segment LED displays by serially shifting segment data at up to 25 MHz clock rate and latching all 8 outputs simultaneously. Cascading three devices over 3 MCU pins can control 24 segment lines, reducing microcontroller pin usage in display modules by more than 80%.
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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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