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Microchip Technology AT93C57-10SC-2.7
- Part No.:
- AT93C57-10SC-2.7
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AT93C57-10SC-2.7.pdf
- Description:
- IC EEPROM 2KBIT 3-WIRE 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,352
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Product details
Overview
AT93C57-10SC-2.7 from Microchip Technology (formerly Atmel) is a 2K-bit 3-wire serial EEPROM with user-selectable 256 × 8 or 128 × 16 organization, operating from 2.7V to 5.5V, featuring 10 ms max self-timed write cycle, 1 million write endurance, and 100-year data retention. It serves as nonvolatile configuration storage in embedded microcontroller systems requiring low-voltage operation and space-constrained PCB layouts.
For engineers reviewing the AT93C57-10SC-2.7 datasheet, AT93C57-10SC-2.7 pinout, AT93C57-10SC-2.7 application, or AT93C57-10SC-2.7 equivalent, this page delivers verified electrical specs, JEDEC SOIC-8 package details, functional timing behavior, real-world use cases in industrial control and automotive subsystems, and validated alternative parts for supply continuity planning.
Technical Context
The AT93C57-10SC-2.7 implements a synchronous 3-wire serial interface (CS, SK, DI/DO) with instruction-based command set including READ, WRITE, ERASE, EWEN, and EWDS. Its ORG pin selects between x8 and x16 memory organization, enabling flexible byte- or word-oriented access without external logic.
It operates across industrial temperature range (−40°C to +85°C), supports clock rates up to 1 MHz at 2.7V, and uses internal charge-pump circuitry to ensure reliable write/erase operations across its full VCC range - no external high-voltage programming supply required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 2048 bits (256 × 8 or 128 × 16 organization) |
| Supply Voltage Range | 2.7V to 5.5V - enables direct interfacing with 3.3V and 5V microcontrollers without level-shifting |
| Max Clock Frequency | 1 MHz at 2.7V - ensures robust timing margin in noise-prone industrial environments |
| Write Cycle Time | 10 ms maximum - defines worst-case firmware delay before next command can be issued |
| Endurance | 1 million write cycles - supports frequent calibration or logging updates over product lifetime |
| Data Retention | 100 years at 25°C - guarantees long-term integrity of stored device identifiers or security keys |
| ESD Protection | >4000V HBM - reduces need for external protection components on board-level I/O lines |
Pinout & Package
AT93C57-10SC-2.7 is housed in an 8-lead JEDEC-standard SOIC package (8S1), 0.150" wide, with gull-wing leads and standard 1.27 mm pitch. Pin 1 is marked by a notch or dot; orientation follows JEDEC MS-001BA.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low enable signal - must be held low during entire instruction sequence; controls DO output impedance state |
| SK | Serial Clock | Synchronous edge-triggered input - rising edge clocks data in/out; frequency determines max throughput |
| DI | Data Input | Serial command/address/data input - accepts 7-bit opcodes, 8-bit addresses (x8 mode), or 7-bit addresses (x16 mode) |
| DO | Data Output | Open-drain serial output - returns read data, READY/BUSY status, or high-impedance when CS high |
| VCC | Power Supply | Primary supply rail - powers internal logic and charge pump; decoupling capacitor required per layout guidelines |
| GND | Ground | Reference return path - must be connected to system ground plane with low-inductance trace |
| ORG | Organization Select | Logic-level input - tied to VCC for 128 × 16 mode, grounded for 256 × 8 mode; unconnected defaults to x16 via internal pull-up |
| DC | Don't Connect | No internal connection - must remain floating or tied to GND/VCC only if required by board mechanical constraints |
Key Features
| Feature | Design Value |
|---|---|
| User-selectable memory organization | Hardware-configurable x8/x16 mode via ORG pin eliminates need for software address translation or external multiplexing |
| Self-timed write cycle | Internal timing control removes requirement for external wait-state generation or polling overhead in host firmware |
| Low standby current | 10 µA max at 2.7V - enables battery-backed operation in always-on sensor nodes or energy-harvesting devices |
| Industrial temperature grade | Rated for −40°C to +85°C - qualified for under-hood automotive modules and factory-floor PLCs without derating |
| 3-wire serial interface | Minimal pin count (3 signal + 2 power) reduces routing complexity and PCB layer count in dense MCU designs |
Applications
| Industrial Sensor Calibration | Automotive Body Control Module |
|---|---|
Use Scenario: Storing factory-trimmed offset/gain coefficients for analog sensor front-ends in programmable logic controllers. IC Role / Device Role / Timing Role: Nonvolatile configuration register holding calibration constants accessed once at power-up by host MCU. Use Value: Enables field-replaceable sensor heads without reprogramming host firmware; 100-year retention prevents drift-induced measurement errors over equipment lifetime. |
Use Scenario: Saving seat position memory, mirror settings, and door lock preferences in vehicle body control units. IC Role / Device Role / Timing Role: Low-power EEPROM interfaced directly to 3.3V CAN microcontroller for infrequent write, frequent read operations. Use Value: 2.7V operation ensures reliable writes during cold-cranking (battery dip to 2.8V); 1M endurance supports >100,000 seat adjustment cycles. |
| Medical Device ID Storage | Consumer Appliance Configuration |
Use Scenario: Holding unique device serial number, manufacturing date, and regulatory compliance flags in portable diagnostic instruments. IC Role / Device Role / Timing Role: Secure boot-time identity source - read-only after initial programming, protected by EWDS instruction. Use Value: ESD-hardened (4kV HBM) pins withstand handling during assembly; 100-year retention satisfies FDA 21 CFR Part 11 long-term recordkeeping requirements. |
Use Scenario: Storing user-selected language, display brightness, and cycle presets in smart washing machines and dishwashers. IC Role / Device Role / Timing Role: Persistent parameter store updated only when user changes settings - minimal write activity extends EEPROM life. Use Value: 10 ms write time allows seamless UI response; SOIC-8 footprint fits compact control board layouts without requiring additional voltage translators. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| M95256-WMN6TP | 256 Kbit SPI interface, 2.5–5.5V, 5 MHz clock, 5 ms write time | Higher density, faster interface, but requires SPI peripheral instead of generic GPIO bit-banging | Choose when migrating to SPI-based platforms or needing >2K storage; not pin-compatible |
| STK12C68-55I | 8K-bit NVSRAM with parallel interface, 4.5–5.5V, 55 ns access, unlimited endurance | Parallel bus, volatile+nonvolatile architecture, no write-cycle delay | Prefer for high-speed random-access logging where write latency is critical; requires more PCB area and address/data bus routing |
Compared with M95256-WMN6TP and STK12C68-55I, the AT93C57-10SC-2.7 offers lowest system-level integration cost for simple 2K configuration storage using minimal GPIO resources, while maintaining proven reliability in extended temperature and low-voltage conditions typical of legacy embedded designs.
Availability
AT93C57-10SC-2.7 is available at Aetrix Electronics and suitable for industrial sensor calibration, automotive body control modules, medical device ID storage, and consumer appliance configuration requiring stable component supply and long-term lifecycle support.
Supply support for AT93C57-10SC-2.7 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Microchip Technology acquired Atmel in 2016 and maintains full technical and manufacturing continuity for the AT93C family of serial EEPROMs.
The AT93C57-10SC-2.7 belongs to Microchip's legacy serial EEPROM product line, designed specifically for cost-sensitive, low-pin-count embedded systems requiring robust nonvolatile storage with minimal external components.
FAQ
What is the memory organization of the AT93C57-10SC-2.7?
The AT93C57-10SC-2.7 provides 2048 bits of serial EEPROM memory, configurable as either 256 words × 8 bits or 128 words × 16 bits via the ORG pin. When ORG is tied to VCC, the x16 organization is selected; when grounded, x8 is active. This hardware-selectable mode avoids firmware overhead and enables optimal data alignment for different host processor architectures.
Does the AT93C57-10SC-2.7 require an external high-voltage programming supply?
No, the AT93C57-10SC-2.7 does not require an external high-voltage supply. It uses an internal charge-pump circuit to generate the necessary programming voltage from the standard 2.7V–5.5V VCC rail. All write and erase operations are fully self-timed and executed using only the nominal supply voltage, simplifying power design and eliminating external HV components.
How is write protection implemented on the AT93C57-10SC-2.7?
Write protection on the AT93C57-10SC-2.7 is controlled by the Erase/Write Enable (EWEN) and Erase/Write Disable (EWDS) instructions. The device powers up in the EWDS state, blocking all programming commands until EWEN is issued. After programming, executing EWDS restores protection. This instruction-based scheme prevents accidental writes without requiring hardware write-protect pins or external logic.
Can the AT93C57-10SC-2.7 be used in automotive applications?
Yes, the AT93C57-10SC-2.7 is rated for industrial temperature range (−40°C to +85°C) and offered in automotive-grade variants. Its 2.7V minimum operating voltage supports cold-cranking scenarios, and its >4000V HBM ESD rating meets common automotive board-level stress requirements. While not AEC-Q100 qualified out-of-box, it has been widely deployed in non-safety-critical automotive subsystems such as mirrors, seats, and lighting controls.
What is the maximum clock frequency supported by the AT93C57-10SC-2.7 at 2.7V?
At VCC = 2.7V, the AT93C57-10SC-2.7 supports a maximum serial clock (SK) frequency of 1 MHz, as specified in the AC Characteristics table. This limit ensures reliable setup/hold timing margins across process, voltage, and temperature variations. Operating above this frequency risks command misinterpretation or incomplete writes, especially at temperature extremes.
AT93C57-10SC-2.7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- EEPROM
- Technology:
- EEPROM
- Memory Size:
- 2Kbit
- Memory Organization:
- 256 x 8, 128 x 16
- Memory Interface:
- 3-Wire Serial
- Clock Frequency:
- 2 MHz
- Write Cycle Time - Word, Page:
- 10ms
- Access Time:
- -
- Voltage - Supply:
- 2.7V ~ 5.5V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AT93C57-10SC-2.7 FAQ
1.How can I place an order for AT93C57-10SC-2.7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT93C57-10SC-2.7 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for AT93C57-10SC-2.7 reliable?
The price and inventory of AT93C57-10SC-2.7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT93C57-10SC-2.7 is usually 5 days.
3.What payment methods are accepted for AT93C57-10SC-2.7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT93C57-10SC-2.7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT93C57-10SC-2.7?
AT93C57-10SC-2.7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT93C57-10SC-2.7 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for AT93C57-10SC-2.7?
For technical support, including AT93C57-10SC-2.7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT93C57-10SC-2.7 requirements.
6.How does Aetrix verify that AT93C57-10SC-2.7 is sourced from the original manufacturer or authorized distributors?
All AT93C57-10SC-2.7 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that AT93C57-10SC-2.7 meets industry standards.
7.What is the process for return or replacement of AT93C57-10SC-2.7?
All AT93C57-10SC-2.7 units undergo pre-shipment inspection (PSI). If there is an issue with AT93C57-10SC-2.7, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The AT93C57-10SC-2.7 part is unused and in its original packaging.
Return procedure for AT93C57-10SC-2.7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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