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HEF4094BT

8-bit shift register, 3-15V, latched 3-state outputs, cascade QS/QS', serial-to-parallel, SOIC-16

6200

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制造商零件：

HEF4094BT

包装：

SOIC-16 (10.3 x 5.3 x 1.75mm)

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说明

产品概览

The HEF4094BT is an 8-stage serial shift register with output latches and 3-state outputs from Nexperia. Data is shifted in serially on the rising edge of the clock and transferred to the output latches on the rising edge of the strobe (STR). The 3-state outputs (QP0-QP7) can drive bus lines directly, while the serial output (QS) enables cascading. Operating from 3V to 15V, it suits display driving, LED control, and serial-to-parallel data conversion in SOIC-16.

主要规格

功能 8-bit shift register with latched 3-state outputs
Stages 8 (serial-in, parallel-out)
电源电压 3V to 15V
Clock Frequency Up to 12MHz @ 10V
传播延迟 95ns typ @ 10V
Output Drive ±3.4mA @ 10V; ±6.8mA @ 15V
输出类型 3-state (QP0-QP7); push-pull (QS, QS’)
Output Latch Yes (STR pin controls latch)
Cascade Output QS (after 8th stage) and QS’ (after 9th stage)
静态电流 20µA max @ 20V
包装 SOIC-16 (10.3 x 5.3mm)
工作温度 -40°C to +125°C

特点

  • 8-bit serial-in, parallel-out shift register
  • Output latches with separate strobe control
  • 3-state parallel outputs for bus driving
  • Serial cascade outputs (QS and QS’) for daisy-chaining
  • 3V to 15V supply range
  • Shift and latch operate independently
  • Up to 12MHz clock rate at 10V
  • Standard CD4000B CMOS logic family

应用

  • LED display driving (7-segment, bar graph)
  • Serial-to-parallel data conversion
  • Multi-channel relay/solenoid control
  • GPIO expansion via serial interface
  • Instrumentation display multiplexing
  • Cascaded display panels

The HEF4094BT from Nexperia is an 8-stage serial shift register with storage registers and 3-state outputs, part of the HEF4000B logic family. Data is clocked into the 8-bit shift register on the rising edge of the clock (CP). The rising edge of the strobe (STR) transfers the shift register data to the 8-bit storage register, which drives the QP0-QP7 outputs. The 3-state outputs can be enabled or disabled via the output enable (OE) pin, allowing direct connection to bus lines. The QS output provides the shift register data after the 8th stage, and QS’ provides data after the 9th stage — both useful for cascading multiple HEF4094 devices. The separation of shift and storage clocks allows updating the display without flicker. The wide 3-15V supply range suits industrial and automotive applications.

The HEF4094BT contains two 8-bit registers: a shift register and a storage (latch) register. On each rising edge of CP, the serial data at the D input is shifted into the first stage, and all existing data shifts one position toward the 8th stage. After 8 clock cycles, the first data bit appears at the 8th stage and is available at the QS cascade output. The QS’ output provides the 9th stage data for extended cascading. When STR goes high, the current contents of the shift register are transferred to the storage register. The storage register outputs (QP0-QP7) reflect this data when OE is high (3-state enabled). When OE is low, the outputs go to high-impedance. The separation of shift and latch clocks means the display can be updated without visible flicker: new data is shifted in (potentially taking many clock cycles), then latched to the outputs in a single STR pulse.

针脚 名称 说明
1 STR Strobe input (rising edge latches data)
2 D 串行数据输入
3 CP Clock input (rising edge shifts data)
4 OE Output enable (high = outputs active, low = Hi-Z)
5 QP4 Parallel output bit 4
6 QP5 Parallel output bit 5
7 QP6 Parallel output bit 6
8 QP7 Parallel output bit 7
9 QS Serial cascade output (after 8th stage)
10 QS’ Serial cascade output (after 9th stage)
11 QP0 Parallel output bit 0
12 QP1 Parallel output bit 1
13 QP2 Parallel output bit 2
14 QP3 Parallel output bit 3
15 VSS 地面
16 VDD Positive supply (3V to 15V)
  • Cascaded LED Display Panel: Cascade three HEF4094BT devices to drive a 24-LED bar graph display. Connect QS from the first device to D of the second, and so on. Shift in 24 bits of LED state data (3 bytes), then pulse STR to update all displays simultaneously without flicker. The 3-state outputs allow the display to be disabled (OE low) during data loading for a blank-then-update display sequence.
  • 7-Segment Display Multiplexing: Use one HEF4094BT per digit in a multi-digit 7-segment display. Each device drives one digit’s segments (a-g plus DP). All devices share CP, STR, and OE lines. Data is cascaded through QS. This creates a 3-wire serial interface (D, CP, STR) to control any number of digits, saving MCU GPIO pins.
  • Industrial Relay Controller: Control 8 relays or solenoid valves from an MCU using only 3 pins (D, CP, STR). The 15V supply range allows direct connection to 12V industrial relay coils through external driver transistors. The 3-state outputs can be wire-ORed with other data sources on a shared control bus. Cascade multiple devices for 16 or 24 channels of control.
模型 Bits VDD 主要区别
CD4094BM96 8 3-18V TI version, higher voltage
74HC595D 8 2-6V Nexperia, low-voltage, more popular
74HCT595D 8 4.5-5.5V Nexperia, TTL input thresholds
TPIC6B595 8 4.5-5.5V TI, 50V/150mA DMOS outputs
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1. Authorized & Genuine Sourcing Promise

All of our electronic components are procured from official authorized distributors and original manufacturers. We strictly reject counterfeits, refurbished parts, disassembled components and gray-market goods. Every product is guaranteed to be brand-new original parts and fully consistent with the original technical parameters. For branded products such as NXP IC series, we maintain complete supply channel documents to realize full product traceability.

2. Strict Full-batch Quality Inspection

We implement 100% full-batch quality control for all goods before shipment. Our professional QC team conducts multi-dimensional tests including appearance inspection, electrical parameter testing, performance verification and packaging check. Each batch of components is attached with complete inspection reports and batch records. We stick to zero-tolerance standards for defective products to ensure every piece of component meets industrial application requirements.

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Email: info@materialparts.com
Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China

 

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Materialparts is a professional global supplier of electronic components with over 20 years of industry experience. We provide one-stop supply of passive components, integrated circuits, as well as parts for industrial control, automotive electronics, consumer electronics and medical devices. Below are the unified shipping and payment policies applicable to all orders, samples and bulk purchases worldwide.

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Contact Information

Email: info@materialparts.com

Tel / WhatsApp: +86 13760382860

服务与包装

Materialparts is a professional electronic component supplier based in Shenzhen, China, with over 20 years of global trading experience. We integrate component procurement, quality inspection, technical support, customized packaging, and global delivery services to provide one-stop supply chain solutions. Our business covers industrial control, automotive electronics, consumer electronics, medical devices and other industries. We always adhere to genuine sources, stable supply and considerate after-sales service.

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We specialize in a full range of passive and active electronic components, including SMD resistors, power resistors, connectors, aviation connectors, LED beads, flexible circuit boards, printed circuit boards, and integrated circuits. Our professional team provides BOM list consolidation, component matching, and alternative model recommendation services. We support sample orders, small-batch trial production, and mass production orders with flexible MOQs to meet diverse procurement needs.

2. Genuine Product Guarantee & Full-process Quality Inspection

All products are sourced from official authorized channels and are 100% original genuine parts. Every batch of goods undergoes strict full-process quality inspection before delivery, with complete batch records and traceability documents provided. Our products comply with AEC-Q standards for automotive electronics and high-reliability specifications for medical devices. We eliminate counterfeits, refurbished parts and defective products from the source to secure your project production.

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Contact Information

For service consultation or packaging customization, please feel free to contact us:
Email: info@materialparts.com
Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
 

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