AT27C256R-70PUAlternatives & Equivalent Parts
About AT27C256R-70PU
AT27C256R-70PU is a Integrated Circuit component manufactured by Microchip. It comes in a Dual-In-Line Packages package. Below you'll find known alternative and equivalent parts that can serve as replacements in your design.
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Specification Comparison
| Parameter | AT27C256R-70PUSource | SMW5R47JT | LM3150MH | LM3489MM | SRP1038A-100M |
|---|---|---|---|---|---|
| Manufacturer | Microchip | TE Connectivity | Texas Instruments | Texas Instruments | Bourns |
| Package Type | Dual-In-Line Packages | Resistor Moulded | Small Outline Packages | Small Outline Packages | Inductors Precision Moulded |
| Pin Count | 28 | 2 | 14 | 8 | 2 |
| Temperature Range | -40.0°C ~ 85.0°C | ~ 280.0°C | -40.0°C ~ 125.0°C | -40.0°C ~ 125.0°C | -55.0°C ~ 150.0°C |
| Price | $2.1579 | $0.4610 | $1.2975 | $0.7318 | $0.4954 |
| Stock | In Stock | In Stock | In Stock | In Stock | In Stock |
| Lifecycle | ACTIVE | TRANSFERRED | OBSOLETE | OBSOLETE | ACTIVE |
| Electrical Parameters | |||||
| Pbfree Code | Yes | — | No | Yes | — |
| Manufacturer Package Code | PDIP-28 | — | — | — | — |
| Factory Lead Time | 6 Weeks | 23 Weeks, 4 Days | — | — | 16 Weeks |
| YTEOL | 4 | — | 0 | 0 | 6.7 |
| Access Time-Max | 70 ns | — | — | — | — |
| I/O Type | COMMON | — | — | — | — |
| JESD-30 Code | R-PDIP-T28 | — | R-PDSO-G14 | S-PDSO-G8 | — |
| Memory Density | 262144 bit | — | — | — | — |
| Memory IC Type | OTP ROM | — | — | — | — |
| Memory Width | 8 | — | — | — | — |
| Number of Functions | 1 | — | 1 | 1 | 1 |
| Number of Words | 32768 words | — | — | — | — |
| Number of Words Code | 32000 | — | — | — | — |
| Operating Mode | ASYNCHRONOUS | — | — | — | — |
| Organization | 32KX8 | — | — | — | — |
| Output Characteristics | 3-STATE | — | — | — | — |
| Package Body Material | PLASTIC/EPOXY | — | PLASTIC/EPOXY | PLASTIC/EPOXY | — |
| Package Equivalence Code | DIP28,.6 | — | — | — | — |
| Package Shape | RECTANGULAR | RECTANGULAR PACKAGE | RECTANGULAR | SQUARE | — |
| Package Style | IN-LINE | — | SMALL OUTLINE | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH | SMT |
| Parallel/Serial | PARALLEL | — | — | — | — |
| Programming Voltage | 13 V | — | — | — | — |
| Qualification Status | Not Qualified | — | Not Qualified | Not Qualified | — |
| Standby Current-Max | 0.001 A | — | — | — | — |
| Supply Current-Max | 0.025 mA | — | — | — | — |
| Supply Voltage-Max (Vsup) | 5.5 V | — | — | — | — |
| Supply Voltage-Min (Vsup) | 4.5 V | — | — | — | — |
| Supply Voltage-Nom (Vsup) | 5 V | — | — | — | — |
| Surface Mount | NO | YES | YES | YES | YES |
| Technology | CMOS | WIRE WOUND | BICMOS | BICMOS | — |
| Terminal Form | THROUGH-HOLE | — | GULL WING | GULL WING | — |
| Terminal Pitch | 2.54 mm | — | 0.65 mm | 0.65 mm | — |
| Terminal Position | DUAL | — | DUAL | DUAL | — |
| ## AT27C256R-70PU Alternates Showing results | Image | — | — | — | — |
| Reach Compliance Code | — | Compliant | — | — | — |
| JESD-609 Code | — | e3 | e0 | e0 | e3 |
| Mounting Feature | — | SURFACE MOUNT | — | — | — |
| Packing Method | — | TR | — | — | TR, EMBOSSED, 13 INCH |
| Rated Power Dissipation (P) | — | 5 W | — | — | — |
| Rated Temperature | — | 25 °C | — | — | — |
| Resistance | — | 0.47 Ω | — | — | — |
| Resistor Type | — | FIXED RESISTOR | — | — | — |
| Size Code | — | 5329 | — | — | — |
| Temperature Coefficient | — | 200 ppm/°C | — | — | — |
| Terminal Finish | — | TIN | TIN LEAD | TIN LEAD | Tin (Sn) - with Nickel (Ni) barrier |
| Terminal Shape | — | WRAPAROUND | — | — | WRAPAROUND |
| Tolerance | — | 5% | — | — | 20% |
| Working Voltage | — | 500 V | — | — | — |
| Additional Feature | — | — | ALSO HAS ADJUSTABLE OUTPUT VOLTAGE DOWN TO 0.6V; ALSO OPERATES IN CURRENT MODE | ALSO OPERATES IN ADJUSTABLE MODE FROM 1.239 V TO 35 V; ALSO OPERATES IN PWM CONTROL TECHNIQUE | — |
| Analog IC - Other Type | — | — | SWITCHING CONTROLLER | SWITCHING CONTROLLER | — |
| Control Mode | — | — | VOLTAGE-MODE | CURRENT-MODE | — |
| Input Voltage-Max | — | — | 42 V | 35 V | — |
| Input Voltage-Min | — | — | 6 V | 4.5 V | — |
| Input Voltage-Nom | — | — | 18 V | 12 V | — |
| Supply Current-Max (Isup) | — | — | 5 mA | — | — |
| Switcher Configuration | — | — | PUSH-PULL | BUCK | — |
| Switching Frequency-Max | — | — | 1000 kHz | 1400 kHz | — |
| Temperature Grade | — | — | AUTOMOTIVE | AUTOMOTIVE | — |
| ## LM3150MH Alternates Showing results | — | — | Image | — | — |
| Control Technique | — | — | — | HYSTERETIC CURRENT MODE | — |
| Number of Outputs | — | — | — | 1 | — |
| Output Current-Max | — | — | — | 4 A | — |
| Output Voltage-Max | — | — | — | 35 V | — |
| Output Voltage-Min | — | — | — | 1.239 V | — |
| Peak Reflow Temperature (Cel) | — | — | — | 260 | — |
| ## LM3489MM Alternates Showing results | — | — | — | Image | — |
| Case/Size Code | — | — | — | — | 4339 |
| Construction | — | — | — | — | Rectangular |
| Core Material | — | — | — | — | CARBONYL POWDER |
| DC Resistance | — | — | — | — | 0.03 Ω |
| Inductance-Nom (L) | — | — | — | — | 10 µH |
| Inductor Application | — | — | — | — | POWER INDUCTOR |
| Inductor Type | — | — | — | — | GENERAL PURPOSE INDUCTOR |
| Package Height | — | — | — | — | 3.8 mm |
| Package Length | — | — | — | — | 11 mm |
| Package Width | — | — | — | — | 10 mm |
| Quality Factor-Min (at L-nom) | — | — | — | — | 20 |
| Rated Current-Max | — | — | — | — | 7.5 A |
| Reference Standard | — | — | — | — | AEC-Q200 |
| Self Resonance Frequency | — | — | — | — | 10 MHz |
| Shape/Size Description | — | — | — | — | RECTANGULAR PACKAGE |
| Shielded | — | — | — | — | YES |
| Terminal Placement | — | — | — | — | DUAL ENDED |
| Test Frequency | — | — | — | — | 0.1 MHz |
Cells highlighted in yellow indicate differing values across parts. Always verify with official datasheets before substitution.
Need pricing on these alternatives?
Get one quote covering all 4 alternatives for AT27C256R-70PU — response within 24 hours.
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Why Look for Alternatives?
Finding alternatives for AT27C256R-70PU is essential for supply chain resilience. Component shortages, long lead times, and end-of-life notices can disrupt production schedules. Having verified alternative parts ensures your designs remain manufacturable.
When evaluating AT27C256R-70PU replacements, consider key parameters such as package compatibility, electrical specifications, and operating temperature range. Our engineering team can help verify pin-to-pin compatibility for your specific application.
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FAQ
What is equivalent to AT27C256R-70PU?
Known equivalents for AT27C256R-70PU include SMW5R47JT, LM3150MH, LM3489MM. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of AT27C256R-70PU?
In many cases, yes. Cross-manufacturer alternatives exist for most standard components. However, always verify pin compatibility, electrical specs, and package dimensions before substituting in production.
How do I verify AT27C256R-70PU alternatives?
Compare the datasheet specifications including pinout, voltage ratings, timing parameters, and package dimensions. FindMyChip's engineering team can help with compatibility verification — submit an RFQ to get started.