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SN74HC595D 8-Bit Shift Register Equivalent & Substitute Parts
Part Overview
The SN74HC595D is an 8-bit shift register with tri-state output manufactured by Texas Instruments in a 16-SOIC surface mount package. This part is currently discontinued at DiGi Electronics, making equivalent substitutes necessary for ongoing production and maintenance applications. The 74HC595 logic family provides serial-to-parallel data conversion functionality across multiple manufacturers and packaging options, ensuring design continuity through qualified alternatives.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Logic Type | Shift Register |
| Number of Elements | 1 |
| Number of Bits per Element | 8 |
| Output Type | Tri-State |
| Function | Serial to Parallel, Serial |
| Voltage - Supply | 2V ~ 6V |
| Operating Temperature | -40°C ~ 85°C |
| Package / Case | 16-SOIC (0.154", 3.90mm Width) |
| Mounting Type | Surface Mount |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution of the SN74HC595D is determined by strict equivalence across the following parameters: logic type (shift register), bit configuration (8-bit, 1 element), output type (tri-state), function (serial to parallel conversion), supply voltage range (2V ~ 6V minimum), package type (16-SOIC), and mounting method (surface mount). All substitute parts listed maintain these core electrical and mechanical specifications. Variations in operating temperature range, manufacturer, packaging format (cut tape, tube, tape & reel), and product status are noted but do not prevent functional substitution when the above parameters align.
Parameter Comparison
| Part Number | Manufacturer | Logic Type | Bits | Output Type | Voltage Supply | Operating Temp | Package | Product Status |
|---|---|---|---|---|---|---|---|---|
| SN74HC595D | Texas Instruments | Shift Register | 8 | Tri-State | 2V ~ 6V | -40°C ~ 85°C | 16-SOIC | Discontinued |
| SN74HC595DR | Texas Instruments | Shift Register | 8 | Tri-State | 2V ~ 6V | -40°C ~ 85°C | 16-SOIC | Active |
| MC74HC595ADR2G | onsemi | Shift Register | 8 | Tri-State | 2V ~ 6V | -55°C ~ 125°C | 16-SOIC | Active |
| MM74HC595M | onsemi | Shift Register | 8 | Tri-State | 2V ~ 6V | -40°C ~ 85°C | 16-SOIC | Active |
| 74HC595D,118 | Nexperia USA Inc. | Shift Register | 8 | Tri-State | 2V ~ 6V | -40°C ~ 125°C | 16-SOIC | Active |
| 74HC595D-Q100,118 | Nexperia USA Inc. | Shift Register | 8 | Tri-State | 2V ~ 6V | -40°C ~ 125°C | 16-SOIC | Active |
| MC74HC595ADG | onsemi | Shift Register | 8 | Tri-State | 2V ~ 6V | -55°C ~ 125°C | 16-SOIC | Active |
| MM74HC595MX | onsemi | Shift Register | 8 | Tri-State | 2V ~ 6V | -40°C ~ 85°C | 16-SOIC | Active |
Engineering Selection Recommendations
All listed substitute parts are active products with ROHS3 compliance and unlimited moisture sensitivity rating, ensuring regulatory alignment with the discontinued SN74HC595D. The SN74HC595DR from Texas Instruments provides direct manufacturer continuity with identical electrical specifications and operating temperature range. For applications requiring extended temperature operation, MC74HC595ADR2G and MC74HC595ADG from onsemi extend the upper operating limit to 125°C. The 74HC595D,118 and 74HC595D-Q100,118 variants from Nexperia USA Inc. offer automotive-grade qualification (AEC-Q100) for 74HC595D-Q100,118, suitable for automotive and harsh environment applications. Selection should prioritize active product status and inventory availability for production continuity.
Frequently Asked Questions (FAQ)
Q: Can SN74HC595DR directly replace SN74HC595D? A: Yes. Both parts share identical logic type, bit configuration, output type, supply voltage range, operating temperature range, and 16-SOIC package. SN74HC595DR is the active equivalent from the same manufacturer.
Q: What is the difference between onsemi and Nexperia substitutes? A: Both manufacturers produce 74HC595 logic family parts meeting the same core electrical specifications. onsemi variants (MC74HC595ADR2G, MC74HC595ADG, MM74HC595M, MM74HC595MX) and Nexperia variants (74HC595D,118, 74HC595D-Q100,118) differ in packaging format, inventory availability, and operating temperature ranges. All maintain 16-SOIC package compatibility.
Q: Are there temperature range differences between substitutes? A: Yes. SN74HC595D and MM74HC595M operate at -40°C ~ 85°C. MC74HC595ADR2G, MC74HC595ADG, 74HC595D,118, and 74HC595D-Q100,118 extend to -55°C or -40°C minimum and 125°C maximum. Select based on application temperature requirements.
Q: What packaging formats are available? A: Substitutes are supplied in Cut Tape (CT) & Digi-Reel, Tube, or Tape & Reel (TR) formats. All maintain the 16-SOIC physical package. Packaging selection depends on production volume and handling requirements.
Q: Is the 74HC595D-Q100,118 suitable for automotive applications? A: Yes. This part carries AEC-Q100 automotive qualification and is rated for -40°C ~ 125°C operation, making it suitable for automotive and mission-critical applications.
Q: Do all substitutes maintain tri-state output functionality? A: Yes. All listed substitutes are specified with tri-state output type, maintaining functional equivalence for bus-sharing and multiplexing applications.
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