Request Quote
(Ships tomorrow)
74HC273D,652 Equivalent & Substitute Parts
Part Overview
The 74HC273D,652 is a D-type flip-flop logic integrated circuit manufactured by Nexperia USA Inc., featuring 1 element with 8-bit capacity and positive edge triggering. This component is classified as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing design support and procurement continuity. The part operates across a 2V to 6V supply range with a maximum propagation delay of 26ns at 6V with 50pF load, making it suitable for general-purpose digital logic applications requiring edge-triggered storage.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | 74HC273D,652 |
| Manufacturer | Nexperia USA Inc. |
| Category | Logic |
| Series | 74HC |
| Type | D-Type Flip-Flop |
| Number of Elements | 1 |
| Number of Bits per Element | 8 |
| Output Type | Non-Inverted |
| Trigger Type | Positive Edge |
| Clock Frequency | 122 MHz |
| Max Propagation Delay @ 6V, 50pF | 26ns |
| Voltage Supply Range | 2V ~ 6V |
| Current Output High/Low | 5.2mA / 5.2mA |
| Quiescent Current (Iq) | 8 µA |
| Input Capacitance | 4.6 pF |
| Operating Temperature Range | -40°C ~ 125°C |
| Package / Case | 20-SOIC (0.295", 7.50mm Width) |
| Mounting Type | Surface Mount |
| Product Status | Obsolete |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitute parts for the 74HC273D,652 are identified based on strict electrical and mechanical compatibility criteria. The following parameters must align for functional substitution:
Critical Matching Parameters:
- Base product number: 74HC273
- Type: D-Type flip-flop
- Number of elements: 1
- Number of bits per element: 8
- Output type: Non-inverted
- Trigger type: Positive edge
- Package / Case: 20-SOIC (0.295", 7.50mm Width)
- Mounting type: Surface mount
- Voltage supply range: 2V ~ 6V (minimum requirement)
Allowable Variation Parameters:
- Clock frequency: May vary (122 MHz baseline)
- Max propagation delay: May vary (26ns baseline)
- Quiescent current: May vary (8 µA baseline)
- Input capacitance: May vary (4.6 pF baseline)
- Operating temperature range: May extend beyond -40°C ~ 125°C
- Current output: May vary (5.2mA baseline)
- Product status: Active or discontinued acceptable
- Packaging format: Cut Tape, Tube, or Bulk acceptable
- Manufacturer: Multiple manufacturers acceptable
Substitute parts are grouped by manufacturer and product status to facilitate procurement decisions based on availability and supply chain considerations.
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Clock Frequency | Max Propagation Delay @ 6V, 50pF | Quiescent Current (Iq) | Input Capacitance | Operating Temperature | Current Output High/Low | Product Status | Packaging |
|---|---|---|---|---|---|---|---|---|---|
| 74HC273D,652 | Nexperia USA Inc. | 122 MHz | 26ns | 8 µA | 4.6 pF | -40°C ~ 125°C | 5.2mA / 5.2mA | Obsolete | 20-SOIC |
| 74HC273D,653 | Nexperia USA Inc. | 122 MHz | 26ns | 8 µA | 4.6 pF | -40°C ~ 125°C | 5.2mA / 5.2mA | Active | 20-SOIC |
| CD74HC273M | Texas Instruments | 60 MHz | 26ns | 8 µA | 10 pF | -55°C ~ 125°C | 5.2mA / 5.2mA | Discontinued at DiGi Electronics | 20-SOIC |
| CD74HC273M96 | Texas Instruments | 60 MHz | 26ns | 8 µA | 10 pF | -55°C ~ 125°C | 5.2mA / 5.2mA | Active | 20-SOIC |
| 74HC273D | Toshiba Semiconductor and Storage | 66 MHz | 25ns | 4 µA | 3 pF | -40°C ~ 125°C | 5.2mA / 5.2mA | Active | 20-SOIC |
| MC74HC273ADWG | onsemi | 35 MHz | 25ns | 4 µA | 10 pF | -55°C ~ 125°C | 7.8mA / 7.8mA | Active | 20-SOIC |
| MC74HC273ADWR2G | onsemi | 35 MHz | 25ns | 4 µA | 10 pF | -55°C ~ 125°C | 7.8mA / 7.8mA | Active | 20-SOIC |
| MM74HC273WM | Fairchild Semiconductor | 78 MHz | 23ns | 8 µA | 7 pF | -40°C ~ 85°C | 5.2mA / 5.2mA | Active | 20-SOIC |
| MM74HC273WMX | Fairchild Semiconductor | 78 MHz | 23ns | 8 µA | 7 pF | -40°C ~ 85°C | 5.2mA / 5.2mA | Active | 20-SOIC |
| SN74HC273DW | Texas Instruments | 60 MHz | 13ns | 8 µA | 3 pF | -40°C ~ 85°C | 5.2mA / 5.2mA | Discontinued at DiGi Electronics | 20-SOIC |
| SN74HC273DWR | Texas Instruments | 60 MHz | 13ns | 8 µA | 3 pF | -40°C ~ 85°C | 5.2mA / 5.2mA | Active | 20-SOIC |
Engineering Selection Recommendations
Primary Recommendation: 74HC273D,653 (Nexperia USA Inc.)
The 74HC273D,653 is the direct equivalent to the obsolete 74HC273D,652, sharing identical electrical specifications and package configuration. This part maintains active product status and is available in Cut Tape and Digi-Reel packaging formats, ensuring supply chain continuity. Both parts are ROHS3 compliant with MSL 1 rating.
Secondary Recommendation: CD74HC273M96 (Texas Instruments)
The CD74HC273M96 provides an active alternative with extended operating temperature range (-55°C ~ 125°C) compared to the original part. Electrical performance is equivalent with 26ns propagation delay. This part is ROHS3 compliant and available in Cut Tape and Digi-Reel packaging. The higher input capacitance (10 pF vs. 4.6 pF) may require circuit evaluation in timing-critical applications.
Tertiary Recommendation: SN74HC273DWR (Texas Instruments)
The SN74HC273DWR offers superior propagation delay performance (13ns vs. 26ns) while maintaining all other electrical compatibility parameters. This part is active and ROHS3 compliant with MSL 1 rating. The reduced operating temperature range (-40°C ~ 85°C) should be evaluated against application requirements.
Alternative Options: Toshiba and Fairchild Variants
The 74HC273D from Toshiba and MM74HC273WM/MM74HC273WMX from Fairchild Semiconductor are functionally compatible alternatives with active product status. The Toshiba variant offers lower quiescent current (4 µA) and improved propagation delay (25ns). Fairchild variants provide faster propagation delay (23ns) but with reduced operating temperature range (-40°C ~ 85°C).
onsemi Variants: MC74HC273ADWG and MC74HC273ADWR2G
These parts are functionally compatible with extended operating temperature range (-55°C ~ 125°C) and lower quiescent current (4 µA). Higher output current capability (7.8mA vs. 5.2mA) and higher input capacitance (10 pF) should be evaluated for specific circuit requirements. MSL 3 rating requires controlled storage conditions.
Frequently Asked Questions (FAQ)
Q: Can I directly replace 74HC273D,652 with 74HC273D,653?
A: Yes. The 74HC273D,653 is electrically and mechanically identical to the 74HC273D,652. Both parts share the same base product number (74HC273), package configuration (20-SOIC), and electrical specifications. The primary difference is product status: 74HC273D,653 is active while 74HC273D,652 is obsolete.
Q: What is the difference between the Nexperia and Texas Instruments versions?
A: The Nexperia 74HC273D,653 and Texas Instruments CD74HC273M96 both meet the core functional requirements. The Texas Instruments part offers extended operating temperature range (-55°C vs. -40°C minimum) and is currently active. The Nexperia part maintains the original temperature specification and is the closest direct equivalent.
Q: Are there performance differences between substitute parts?
A: Yes. Clock frequency, propagation delay, quiescent current, and input capacitance vary across manufacturers. The SN74HC273DWR provides the fastest propagation delay (13ns), while the Toshiba 74HC273D offers the lowest quiescent current (4 µA). These variations are within the 74HC logic family specification and do not affect functional compatibility for standard applications.
Q: Does packaging format affect electrical performance?
A: No. Packaging format (Cut Tape, Tube, or Bulk) does not affect electrical performance. Format selection is based on procurement volume and handling requirements. All substitute parts use the same 20-SOIC package configuration.
Q: What is MSL (Moisture Sensitivity Level) and why does it matter?
A: MSL indicates moisture sensitivity during storage and handling. MSL 1 (Nexperia and most Texas Instruments variants) requires no special storage conditions. MSL 3 (onsemi variants) requires controlled storage at specified humidity levels. Selection depends on your storage and handling capabilities.
Q: Can I use parts with different operating temperature ranges?
A: Yes, provided the substitute part's operating temperature range encompasses your application requirements. For example, if your circuit operates at -40°C to 85°C, any substitute with a range that includes this window is acceptable. Extended range parts (e.g., -55°C to 125°C) provide additional margin.
Q: Are all substitute parts RoHS compliant?
A: All listed substitute parts are ROHS3 compliant, matching the original 74HC273D,652 compliance status. This ensures compatibility with RoHS-regulated supply chains and end-use applications.
Q: Which substitute should I choose for new designs?
A: For new designs, select from active product status parts: 74HC273D,653 (Nexperia), CD74HC273M96 (Texas Instruments), SN74HC273DWR (Texas Instruments), 74HC273D (Toshiba), or the onsemi variants. These parts have confirmed long-term availability. Avoid discontinued parts (CD74HC273M, SN74HC273DW) unless existing inventory is available.
Alternative Parts
SJ6012L2TP
Littelfuse Inc.
6 Alternative Parts
JMK107BBJ476MA-RE
Taiyo Yuden
10 Alternative Parts
GMK107BBJ475MA-T
Taiyo Yuden
5 Alternative Parts
SJ6020N2ARP
Littelfuse Inc.
3 Alternative Parts
SJ6025R2ATP
Littelfuse Inc.
4 Alternative Parts
2474-05L
API Delevan Inc.
1 Alternative Parts
4590R-684K
API Delevan Inc.
1 Alternative Parts
CM6560R-334
API Delevan Inc.
1 Alternative Parts
CM6460-104
API Delevan Inc.
1 Alternative Parts
5526-12
API Delevan Inc.
1 Alternative Parts