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74VHC595M
onsemi
IC REGISTER SHIFT 8BIT 16-SOIC
3593 Pcs New Original In Stock
Shift Shift Register 1 Element 8 Bit 16-SOIC
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*Quantity
Minimum 1
Minimum 1
5.0 / 5.0
- (221 Ratings)
74VHC595M
Product Overview
7745899
DiGi Electronics Part Number
74VHC595M-DGManufacturer
onsemi
74VHC595M
Description
IC REGISTER SHIFT 8BIT 16-SOICInventory
3593 Pcs New Original In Stock
Shift Shift Register 1 Element 8 Bit 16-SOIC
Quantity
Minimum 1
Minimum 1
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74VHC595M Technical Specifications
Category
Logic, Shift Registers
Packaging
-
Series
74VHC
Product Status
Obsolete
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 ~ 85°C
Mounting Type
Surface Mount
Package / Case
16-SOIC (0.154", 3.90mm Width)
Supplier Device Package
16-SOIC
Base Product Number
74VHC595
Datasheet & Documents
HTML Datasheet
74VHC595M-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8542.39.0001
Additional Information
Other Names
2156-74VHC595M-OS
ONSONS74VHC595M
2832-74VHC595M
74VHC595M-NDR
Standard Package
48
Alternative Parts
View DetailsPART NUMBER
MANUFACTURER
QUANTITY AVAILABLE
DiGi PART NUMBER
UNIT PRICE
SUBSTITUTE TYPE
Reviews
5.0/5.0-(Show up to 5 Ratings)
December 02, 2025
Product 지원뿐 아니라 추가 요청사항도 적극적으로 수용해주셔서 매우 감사했습니다.
December 02, 2025
Their budget-friendly prices combined with durable quality truly stand out in the gaming industry.
December 02, 2025
I trust DiGi Electronics because their products are tough and designed to last for years.
December 02, 2025
DiGi Electronics prioritizes customer satisfaction above all else.
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Frequently Asked Questions (FAQ)
Is the 74VHC595M still a viable choice for new designs given its obsolete status, and what are the key risks of using it in production today?
Although the 74VHC595M is marked as obsolete by onsemi, it remains functional and electrically compatible with modern systems due to its 2V–5.5V supply range and standard logic levels. However, the primary risk is long-term availability—since it's no longer in active production, supply chain disruptions or sudden last-time buys could jeopardize manufacturing continuity. We recommend qualifying a pin-compatible drop-in replacement such as the SN74AHC595D or MC74VHC595DR2G early in your design cycle to mitigate obsolescence risk without requiring PCB changes.
Can I safely replace the 74VHC595M with the SN74AHC595D in an existing 3.3V industrial control board without modifying the firmware or layout?
Yes, the SN74AHC595D is a direct functional and pin-compatible replacement for the 74VHC595M in most 3.3V applications. Both devices share identical pinouts, timing characteristics, and tri-state output behavior, and the SN74AHC595D supports the same 2V–5.5V supply range. However, note that the AHC family has slightly higher input leakage current and marginally faster propagation delay; while typically negligible, this may affect very high-speed daisy-chained configurations (>20 MHz). Validate signal integrity under worst-case loading if operating near timing limits.
What are the thermal and reliability implications of operating the 74VHC595M at its maximum rated temperature (85°C) in a sealed enclosure with limited airflow?
The 74VHC595M is rated for -40°C to 85°C junction temperature, but sustained operation at 85°C in a sealed enclosure increases the risk of accelerated electromigration and long-term parametric drift, especially if simultaneously driving high capacitive loads or sourcing near-maximal output current (e.g., >6 mA per pin). To improve reliability, ensure adequate copper pour under the 16-SOIC package for heat dissipation, limit simultaneous switching outputs, and consider derating the supply voltage slightly (e.g., 4.5V instead of 5.5V) to reduce internal power dissipation. MSL-1 rating means no special handling is needed, but thermal management remains critical for mission-critical deployments.
How does the output drive strength of the 74VHC595M compare to the SN74LV595AD when driving long PCB traces or multiple LEDs, and which is better for noisy environments?
The 74VHC595M (VHC family) offers higher output drive current (~8 mA at 4.5V) compared to the SN74LV595AD (LV family, ~4 mA), making it more suitable for driving longer traces or multiple LEDs without additional buffers. However, the LV family has lower ground bounce and faster edge rates, which can increase EMI in sensitive analog sections. For noisy industrial environments, the 74VHC595M’s stronger drive helps maintain signal integrity over distance, but you should include series termination resistors (22–47 Ω) near the outputs to dampen reflections and reduce ringing—especially if trace lengths exceed 15 cm.
Can I daisy-chain multiple 74VHC595M devices at 20 MHz clock speeds while maintaining reliable data transfer in a multi-layer PCB design?
Yes, daisy-chaining 74VHC595M devices at 20 MHz is feasible, but success depends heavily on PCB layout and signal integrity practices. The VHC family supports typical propagation delays under 10 ns, but cumulative skew and capacitive loading from long daisy chains can cause setup/hold violations. To ensure reliability: use controlled-impedance routing for clock and data lines, minimize stub lengths, place decoupling capacitors (<10 mm from VCC/GND pins), and avoid routing high-speed signals adjacent to analog or power planes. For chains longer than 4 devices, consider inserting a buffer or lowering the clock frequency to 10–15 MHz to accommodate worst-case timing margins.
Quality Assurance (QC)
DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
74VHC595M CAD Models
onsemi 74VHC595M PCB symbols & footprints
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