AT27C256R-70JUAlternatives & Equivalent Parts
About AT27C256R-70JU
AT27C256R-70JU is a Integrated Circuit component manufactured by Microchip. It comes in a Plastic Leaded Chip Carrier 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-70JUSource | PIC18F27K40-E/SS | 70ADH-2-ML0 | AT27C256R-70JU-T |
|---|---|---|---|---|
| Manufacturer | Microchip | Microchip | Bourns | Microchip |
| Package Type | Plastic Leaded Chip Carrier | Small Outline Packages | Other | Plastic Leaded Chip Carrier |
| Pin Count | 32 | 28 | 4 | 32 |
| Temperature Range | -40.0°C ~ 85.0°C | -40.0°C ~ 125.0°C | -55.0°C ~ 125.0°C | -40.0°C ~ 85.0°C |
| Price | $2.0775 | $1.6200 | $0.6130 | $1.1930 |
| Stock | In Stock | In Stock | In Stock | In Stock |
| Lifecycle | ACTIVE | ACTIVE | ACTIVE | ACTIVE |
| Electrical Parameters | ||||
| Pbfree Code | Yes | — | Yes | — |
| Manufacturer Package Code | PLCC-32 | SSOP-28 | — | PLCC-32 |
| Factory Lead Time | 6 Weeks | 6 Weeks | 8 Weeks | 6 Weeks |
| YTEOL | 4 | 19 | — | 14 |
| Access Time-Max | 70 ns | — | — | 70 ns |
| I/O Type | COMMON | — | — | COMMON |
| JESD-30 Code | R-PQCC-J32 | R-PDSO-G28 | — | R-PQCC-J32 |
| Memory Density | 262144 bit | — | — | 262144 bit |
| Memory IC Type | OTP ROM | — | — | OTP ROM |
| Memory Width | 8 | — | — | 8 |
| Number of Functions | 1 | — | — | 1 |
| Number of Words | 32768 words | — | — | 32768 words |
| Number of Words Code | 32000 | — | — | 32000 |
| Operating Mode | ASYNCHRONOUS | — | — | ASYNCHRONOUS |
| Organization | 32KX8 | — | — | 32KX8 |
| Output Characteristics | 3-STATE | — | — | 3-STATE |
| Package Body Material | PLASTIC/EPOXY | PLASTIC/EPOXY | — | PLASTIC/EPOXY |
| Package Equivalence Code | LDCC32,.5X.6 | SSOP28,.3 | — | LDCC32,.5X.6 |
| Package Shape | RECTANGULAR | RECTANGULAR | — | RECTANGULAR |
| Package Style | CHIP CARRIER | SMALL OUTLINE, SHRINK PITCH | — | CHIP CARRIER |
| Parallel/Serial | PARALLEL | — | — | PARALLEL |
| Programming Voltage | 13 V | — | — | 13 V |
| Qualification Status | Not Qualified | — | — | — |
| Standby Current-Max | 0.001 A | — | — | 0.001 A |
| Supply Current-Max | 0.025 mA | 9.5 mA | — | 0.025 mA |
| Supply Voltage-Max (Vsup) | 5.5 V | — | — | 5.5 V |
| Supply Voltage-Min (Vsup) | 4.5 V | — | — | 4.5 V |
| Supply Voltage-Nom (Vsup) | 5 V | — | — | 5 V |
| Surface Mount | YES | YES | — | YES |
| Technology | CMOS | CMOS | — | CMOS |
| Terminal Form | J BEND | GULL WING | — | J BEND |
| Terminal Pitch | 1.27 mm | 0.65 mm | 3.9878 mm | 1.27 mm |
| Terminal Position | QUAD | DUAL | — | QUAD |
| ## AT27C256R-70JU Alternates Showing results | Image | — | — | — |
| Reach Compliance Code | — | Compliant | — | — |
| Date Of Intro | — | 2016-09-15 | — | — |
| Has ADC | — | YES | — | — |
| Additional Feature | — | OPERATES AT 2.3 V MINIMUM SUPPLY AT 16 MHZ | ROHS COMPLIANT, LOW PROFILE | — |
| Bit Size | — | 8 | — | — |
| Boundary Scan | — | NO | — | — |
| CPU Family | — | PIC18 | — | — |
| Clock Frequency-Max | — | 64 MHz | — | — |
| DAC Channels | — | YES | — | — |
| DMA Channels | — | NO | — | — |
| Format | — | FIXED POINT | — | — |
| Integrated Cache | — | NO | — | — |
| JESD-609 Code | — | e3 | e3 | — |
| Low Power Mode | — | YES | — | — |
| Number of External Interrupts | — | 3 | — | — |
| Number of I/O Lines | — | 25 | — | — |
| Number of Serial I/Os | — | 2 | — | — |
| Number of Timers | — | 7 | — | — |
| On Chip Data RAM Width | — | 8 | — | — |
| On Chip Program ROM Width | — | 8 | — | — |
| PWM Channels | — | YES | — | — |
| RAM (bytes) | — | 3728 | — | — |
| RAM (words) | — | 3728 | — | — |
| ROM (words) | — | 131072 | — | — |
| ROM Programmability | — | FLASH | — | — |
| Screening Level | — | TS 16949 | — | — |
| Speed | — | 64 MHz | — | — |
| Supply Voltage-Max | — | 5.5 V | — | — |
| Supply Voltage-Min | — | 1.8 V | — | — |
| Supply Voltage-Nom | — | 3 V | — | — |
| Temperature Grade | — | AUTOMOTIVE | — | — |
| Terminal Finish | — | Matte Tin (Sn) | — | — |
| uPs/uCs/Peripheral ICs Type | — | MICROCONTROLLER, RISC | — | — |
| ## PIC18F27K40-E/SS Alternates Showing results | — | Image | — | — |
| Body Breadth | — | — | 0.439 inch | — |
| Body Depth | — | — | 0.151 inch | — |
| Body Length | — | — | 0.303 inch | — |
| Body/Shell Style | — | — | RECEPTACLE | — |
| Connector Type | — | — | PCB CONNECTOR | — |
| Contact Finish Mating | — | — | GOLD (30) OVER NICKEL (60) | — |
| Contact Finish Termination | — | — | TIN LEAD OVER NICKEL (60) | — |
| Contact Gender | — | — | MALE | — |
| Contact Material | — | — | COPPER ALLOY | — |
| Contact Pattern | — | — | RECTANGULAR | — |
| Contact Resistance | — | — | 25 mΩ | — |
| Contact Style | — | — | COMPRESSION | — |
| DIN Conformance | — | — | NO | — |
| Dielectric Withstanding Voltage | — | — | 500VAC V | — |
| Durability | — | — | 5000 Cycles | — |
| IEC Conformance | — | — | NO | — |
| Insulation Resistance | — | — | 500000000 Ω | — |
| Insulator Color | — | — | BLACK | — |
| Insulator Material | — | — | GLASS FILLED THERMOPLASTIC | — |
| MIL Conformance | — | — | NO | — |
| Manufacturer Series | — | — | 70AD | — |
| Mating Contact Pitch | — | — | 0.157 inch | — |
| Mounting Option 1 | — | — | LOCKING | — |
| Mounting Style | — | — | STRAIGHT | — |
| Mounting Type | — | — | BOARD | — |
| Number Of Connectors | — | — | ONE | — |
| Number Of PCB Rows | — | — | 2 | — |
| Number of Rows Loaded | — | — | 1 | — |
| Option | — | — | GENERAL PURPOSE | — |
| PCB Contact Pattern | — | — | STAGGERED | — |
| PCB Contact Row Spacing | — | — | 11.1506 mm | — |
| Plating Thickness | — | — | 30u inch | — |
| Rated Current (Signal) | — | — | 3 A | — |
| Reference Standard | — | — | UL | — |
| Reliability | — | — | COMMERCIAL | — |
| Subcategory | — | — | Headers and Edge Type Connectors | — |
| Terminal Length | — | — | 0.165 inch | — |
| Termination Type | — | — | SOLDER | — |
| Total Number of Contacts | — | — | 2 | — |
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 3 alternatives for AT27C256R-70JU — response within 24 hours.
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Why Look for Alternatives?
Finding alternatives for AT27C256R-70JU 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-70JU 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-70JU?
Known equivalents for AT27C256R-70JU include PIC18F27K40-E/SS, 70ADH-2-ML0, AT27C256R-70JU-T. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of AT27C256R-70JU?
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-70JU 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.