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Diodes Incorporated 74AHC595T16-13
- Part No.:
- 74AHC595T16-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Shift Registers
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
74AHC595T16-13.pdf
- Description:
- AHC HIGH PIN COUNT TSSOP-16
- Quantity:
- Payment:
- Shipping:
Inventory:2,292
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Product details
Overview
74AHC595T16-13 from Diodes Incorporated is an 8-bit serial-in, parallel-out shift register with storage register and 3-state outputs, implemented in advanced high-speed CMOS. It features independent shift and storage clocks (SHCP/STCP), asynchronous master reset (MR), output enable (OE), and Schmitt-trigger inputs. Operates from 2.0 V to 5.5 V and supports microcontroller-driven LED matrix control and GPIO expansion.
For engineers reviewing the 74AHC595T16-13 datasheet, 74AHC595T16-13 pinout, 74AHC595T16-13 application, or 74AHC595T16-13 equivalent, key selection criteria include propagation delay (≤10.5 ns at 5 V), 8 mA output drive capability, TSSOP-16 package footprint, and dual-register architecture enabling glitch-free output updates.
Technical Context
The device integrates two synchronized but independently clocked registers: an 8-bit shift register accepting serial data on DS at each SHCP rising edge, and an 8-bit storage register loaded on STCP rising edge. MR asynchronously clears only the shift register, leaving storage register contents intact until next STCP pulse.
All inputs feature Schmitt-trigger action for noise immunity; outputs are 3-state controlled by OE and capable of sinking or sourcing 8 mA at VCC = 4.5 V. The Q7S serial output enables daisy-chaining multiple devices without external logic.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.0 V to 5.5 V - supports direct interfacing with 3.3 V and 5 V microcontrollers without level shifters. |
| Max Clock Frequency | 130 MHz at 4.5–5.5 V - enables high-throughput serial loading for real-time display refresh or sensor data streaming. |
| Propagation Delay | 4.0 ns (typ) SHCP→Q7S at 5 V - ensures tight timing margins in synchronous multi-device chains. |
| Output Drive | ±8 mA at VCC = 4.5 V - sufficient to directly drive LEDs or TTL-compatible inputs without external buffers. |
| Input Hysteresis | Schmitt-trigger inputs - rejects up to 0.5 V of noise on serial or clock lines in electrically noisy industrial environments. |
| ESD Protection | 2 kV HBM, 1 kV CDM - exceeds JEDEC JESD22 requirements for robust handling during PCB assembly and field operation. |
| Operating Temperature | −40 °C to +125 °C - qualified for under-hood automotive modules and industrial motor controllers. |
Pinout & Package
TSSOP-16 package: 4.4 mm × 5.0 mm body, 0.65 mm pitch, 1.08 mm max height, lead-free and RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6, 7, 15 | Q0–Q7 Parallel Outputs | Active-high 3-state outputs; enabled only when OE is low - allows dynamic bus sharing across multiple peripherals. |
| 8 | GND | Ground reference for all internal logic and output drivers - must be low-inductance connection to minimize switching noise. |
| 9 | Q7S Serial Output | MSB of shift register - connects directly to DS of next device for cascaded 16-/24-bit expansion. |
| 10 | MR Master Reset | Asynchronous active-low reset - clears shift register only; storage register retains last latched data until STCP. |
| 11 | SHCP Shift Clock | Rising-edge triggered - advances serial data through shift register; independent of STCP for staggered update control. |
| 12 | STCP Storage Clock | Rising-edge triggered - transfers current shift register contents to output register - eliminates output glitches during load. |
| 13 | OE Output Enable | Active-low 3-state control - disables all Q0–Q7 outputs simultaneously, enabling shared-bus applications. |
| 14 | DS Serial Data Input | CMOS input with Schmitt trigger - accepts slow or noisy microcontroller GPIO signals without external conditioning. |
| 16 | VCC | Positive supply - powers both logic core and output drivers; decoupling capacitor required within 1 cm of pin. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-register architecture | Separate shift and storage registers prevent output corruption during serial loading - essential for flicker-free LED displays. |
| Independent clock domains | SHCP and STCP can be driven from separate MCU pins or timers - enables precise timing isolation between data capture and output update. |
| Asynchronous master reset | MR clears only the shift register while preserving stored output state - allows safe reinitialization without visual artifacts. |
| 3-state output control | Single OE pin disables all eight outputs to high-impedance - simplifies multiplexing across shared address/data buses. |
| Wide voltage operation | 2.0–5.5 V supply range - eliminates need for level translators when interfacing mixed-voltage systems (e.g., 3.3 V MCU to 5 V peripherals). |
Applications
| LED Matrix Display Driver | Microcontroller GPIO Expander |
|---|---|
|
Use Scenario: Driving 8×8 monochrome LED grid using SPI interface from ARM Cortex-M0+ MCU. IC Role / Device Role / Timing Role: Serial-to-parallel converter buffering SPI data and presenting stable parallel outputs synchronized to display refresh cycle. Use Value: Eliminates need for 8-bit port expander ICs; Q7S daisy-chain supports unlimited row/column expansion with single SPI channel. |
Use Scenario: Adding 8 digital output lines to ESP32-WROOM-32 for relay control in smart home hub. IC Role / Device Role / Timing Role: GPIO extension buffer with glitch-free output update via separated SHCP/STCP clocks. Use Value: Enables atomic output state changes - prevents momentary short-circuits during relay coil energization sequences. |
| Industrial Sensor Data Aggregator | Automotive Dashboard Indicator Controller |
|
Use Scenario: Consolidating status bits from 4 temperature sensors into single 32-bit parallel word for CAN message transmission. IC Role / Device Role / Timing Role: Synchronized shift-and-latch register capturing sensor alert flags on dedicated interrupt line. Use Value: MR pin allows hardware-initiated reset after fault clearing; Schmitt inputs tolerate long PCB traces in engine bay wiring harnesses. |
Use Scenario: Controlling 8 dashboard warning lamps (oil, brake, ABS) from RH850/F1L MCU in compact instrument cluster. IC Role / Device Role / Timing Role: High-reliability output latch with −40 °C to +125 °C operation and 2 kV HBM ESD rating. Use Value: TSSOP-16 footprint saves board space vs SOIC; 8 mA drive directly powers incandescent lamps without discrete transistors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit serial-in/parallel-out shift register applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74HC595PWR | Same logic function but TI's HC family; 2–6 V supply, slower max frequency (25 MHz @ 6 V), no Schmitt inputs. | Lacks noise immunity on long traces; unsuitable for automotive or industrial noise environments. | Prefer 74AHC595T16-13 where ESD robustness, speed, or Schmitt-trigger inputs are required. |
| 74LV595PW,118 | NXP's LV variant; 1–5.5 V supply, 8 mA drive, but only rated to +85 °C ambient and lacks MR pin. | Not qualified for under-hood automotive use; missing MR limits safe recovery after power brownouts. | Select 74AHC595T16-13 for extended temperature range and hardware reset capability in mission-critical systems. |
Compared with SN74HC595PWR and 74LV595PW,118, the 74AHC595T16-13 delivers superior noise immunity, higher speed, wider temperature range, and true asynchronous reset - making it optimal for automotive, industrial, and high-reliability embedded designs.
Availability
74AHC595T16-13 is available at Aetrix Electronics and suitable for LED display systems, microcontroller peripheral expansion, industrial sensor interfaces, and automotive indicator control requiring stable component supply across production lifecycles.
Supply support for 74AHC595T16-13 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability, energy-efficient components for automotive, industrial, and computing markets.
The 74AHC595 belongs to Diodes' AHC logic family - engineered for high-speed, low-power operation with enhanced ESD tolerance and wide supply range to replace legacy HC/HCT devices in modern embedded systems.
FAQ
Can 74AHC595T16-13 operate reliably at 3.3 V with a 25 MHz SPI clock?
Yes. At VCC = 3.3 V, the device guarantees fMAX ≥ 60 MHz (−40 °C to +85 °C), well above 25 MHz. Propagation delays remain ≤15 ns, and input thresholds (VIH = 2.1 V, VIL = 0.9 V) ensure clean recognition of standard 3.3 V logic levels from SPI peripherals.
What happens to Q0–Q7 outputs when OE is high and MR is pulsed low?
When OE is high, all Q0–Q7 outputs enter high-impedance state regardless of MR activity. Pulsing MR low clears only the internal shift register; the storage register and its outputs remain unchanged until the next STCP rising edge - no output disturbance occurs.
Is the Q7S output compatible with the DS input of another 74AHC595T16-13 in cascade mode?
Yes. Q7S is a buffered CMOS output with full rail-to-rail swing and Schmitt-trigger input compatibility. Its VOH/VOL specs match DS input thresholds across 2.0–5.5 V supply, supporting reliable daisy-chaining of ≥10 devices without signal degradation or timing skew accumulation.
Does the TSSOP-16 package require special PCB layout considerations compared to SOIC-16?
Yes. TSSOP-16 has 0.65 mm pitch and thinner leads. Recommended pad dimensions are 0.35 mm width × 4.9 mm length with 0.65 mm center-to-center spacing. Thermal relief and solder mask defined pads are advised; reflow profile must follow IPC-J-STD-020 for moisture sensitivity level 1.
74AHC595T16-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- 74AHC
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Shift Register
- Output Type:
- Tri-State
- Number of Elements:
- 1
- Number of Bits per Element:
- 8
- Function:
- Serial to Parallel, Serial
- Voltage - Supply:
- 2V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP
74AHC595T16-13 FAQ
1.How can I place an order for 74AHC595T16-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AHC595T16-13 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for 74AHC595T16-13 reliable?
The price and inventory of 74AHC595T16-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AHC595T16-13 is usually 5 days.
3.What payment methods are accepted for 74AHC595T16-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AHC595T16-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74AHC595T16-13?
74AHC595T16-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74AHC595T16-13 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for 74AHC595T16-13?
For technical support, including 74AHC595T16-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AHC595T16-13 requirements.
6.How does Aetrix verify that 74AHC595T16-13 is sourced from the original manufacturer or authorized distributors?
All 74AHC595T16-13 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that 74AHC595T16-13 meets industry standards.
7.What is the process for return or replacement of 74AHC595T16-13?
All 74AHC595T16-13 units undergo pre-shipment inspection (PSI). If there is an issue with 74AHC595T16-13, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The 74AHC595T16-13 part is unused and in its original packaging.
Return procedure for 74AHC595T16-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74AHC595T16-13 Tags
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SN74HC164DR
Texas Instruments
-
SN74HC595DR
Texas Instruments
-
74HC595PW,118
Nexperia USA Inc.
-
SN74HC165PWR
Texas Instruments
-
HEF4094BT,653
Nexperia USA Inc.
-
74HC595D,118
Nexperia USA Inc.
-
SN74HC595PWR
Texas Instruments
-
74HC165D,653
Nexperia USA Inc.
-
SN74LV165APWR
Texas Instruments
-
74HC595BQ,115
Nexperia USA Inc.
-
74HC165BQ,115
Nexperia USA Inc.
-
CD4094BPWR
Texas Instruments
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