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Microchip Technology AT93C57-10SC-1.8
- Part No.:
- AT93C57-10SC-1.8
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AT93C57-10SC-1.8.pdf
- Description:
- IC EEPROM 2KBIT 3-WIRE 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,007
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Product details
Overview
AT93C57-10SC-1.8 from Microchip Technology (formerly Atmel) is a 2-kbit serial EEPROM with 3-wire interface, supporting 1.8V to 5.5V operation, user-selectable 256 × 8 or 128 × 16 organization via ORG pin, and self-timed write cycles ≤10 ms. It delivers high reliability with 1 million write cycles and 100-year data retention, targeting low-power embedded systems requiring nonvolatile configuration storage.
For engineers reviewing the AT93C57-10SC-1.8 datasheet, AT93C57-10SC-1.8 pinout, AT93C57-10SC-1.8 application, or AT93C57-10SC-1.8 equivalent, this device serves as a drop-in upgrade path for legacy 1.8V–5.5V serial EEPROM designs needing verified endurance, industrial temperature support, and JEDEC SOIC-8 compatibility without layout changes.
Technical Context
The AT93C57-10SC-1.8 implements a synchronous 3-wire serial interface (CS, SK, DI/DO) with instruction-based command set including READ, WRITE, ERASE, EWEN, and EWDS. Its internal logic decodes 7-bit addresses (A7–A0) for x8 mode or 6-bit addresses (A6–A0) for x16 mode, with ORG pin selection determining word width.
Write operations require prior EWEN enable and are fully self-timed; DO pin provides READY/BUSY status during active programming. The device supports clock rates up to 250 kHz at 1.8V and includes on-chip ESD protection >4000V, ensuring robustness in noisy industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 2048 bits (256 × 8 or 128 × 16 organization) |
| Supply Voltage Range | 1.8V to 5.5V - enables direct integration into 1.8V logic domains without level shifters |
| Max Clock Frequency | 250 kHz at 1.8V - sets minimum SK period to 4000 ns for timing-critical host controllers |
| Write Cycle Time | ≤10 ms - defines worst-case blocking time for firmware during nonvolatile parameter updates |
| Endurance | 1 million write cycles - supports frequent calibration or logging use cases over product lifetime |
| Data Retention | 100 years at 25°C - guarantees long-term storage of factory-trimmed coefficients or security keys |
| Operating Temperature | -40°C to +85°C - qualified for industrial-grade deployment in automotive body control or industrial sensors |
Pinout & Package
AT93C57-10SC-1.8 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 beveled corner or dot; orientation follows JEDEC MS-001 BA outline.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low enable: must be held low for entire instruction sequence; controls DO output impedance and READY/BUSY reporting |
| SK | Serial Clock | Synchronous edge-triggered input: rising edge latches DI, falling edge clocks DO; timing margins defined per VCC |
| DI | Data Input | Serial command/address/data input: accepts 7-bit address + op code + optional data under CS/SK control |
| DO | Data Output | Tri-state serial output: drives data during READ; reports READY ('1') or BUSY ('0') post-write when CS rises |
| VCC | Power Supply | Primary supply rail: powers internal logic and memory array; bypass capacitor required per datasheet 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, GND for 256 × 8 mode; unconnected defaults to x16 via internal pull-up |
| DC | No Connect | Internally unused terminal: must remain floating; no external connection permitted |
Key Features
| Feature | Design Value |
|---|---|
| 1.8V–5.5V Wide-Voltage Operation | Eliminates need for external voltage translators in mixed-supply systems, reducing BOM count and PCB area |
| User-Selectable Memory Organization | Enables flexible data packing: 256-byte buffers (x8) or 128-word parameter tables (x16) via single ORG pin tie-off |
| Self-Timed Write with Status Reporting | Removes requirement for fixed delay loops in firmware; DO pin provides real-time BUSY/READY feedback during writes |
| Industrial Temperature Range (−40°C to +85°C) | Validates operation across full ambient range of motor drives, PLC I/O modules, and outdoor IoT gateways |
| ESD Protection >4000V HBM | Reduces risk of field failure during handling or in electrostatic-prone manufacturing and service environments |
Applications
| Industrial Sensor Calibration | Automotive Body Control Module |
|---|---|
Use Scenario: Storing factory-calibrated offset/gain coefficients and linearization tables for analog sensor front-ends in harsh environments. IC Role / Device Role / Timing Role: Nonvolatile configuration register holding trim values accessed at power-on reset before ADC initialization. Use Value: Enables one-time calibration during production, eliminating manual potentiometer adjustment and improving repeatability across 100k+ units. |
Use Scenario: Retaining seat position memory, mirror settings, and lighting preferences across ignition cycles in entry-level vehicles. IC Role / Device Role / Timing Role: Low-power configuration store interfaced directly to 1.8V microcontroller GPIOs without level-shifting circuitry. Use Value: Supports instant recall of user preferences after battery disconnect, meeting OEM requirements for <5 µA standby current in sleep mode. |
| Medical Diagnostic Equipment | Smart Energy Metering |
Use Scenario: Archiving diagnostic test results, calibration logs, and audit trails in portable ultrasound or ECG devices. IC Role / Device Role / Timing Role: Secure, tamper-resistant log buffer updated after each clinical session using WRITE ALL command. Use Value: Meets IEC 62304 data integrity requirements with 1M-cycle endurance, enabling 10+ years of daily usage without wear-out concerns. |
Use Scenario: Storing tariff schedules, billing history, and firmware update metadata in DIN-rail mounted electricity meters. IC Role / Device Role / Timing Role: Configuration EEPROM interfaced to metering SoC's SPI-compatible GPIOs for secure parameter loading at boot. Use Value: Guarantees accurate billing data retention over 15-year field life, validated by 100-year data retention spec at 85°C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| M95128-WMN6TP | 128 kbit SPI interface, 2.5–5.5V only, no 1.8V support; faster 10 MHz clock; built-in write protection | Requires SPI peripheral instead of bit-banged 3-wire; unsuitable for 1.8V-only hosts | Select if migrating to SPI infrastructure and higher density is needed; verify host driver compatibility |
| BR24G02FJ-WE2 | I²C interface, 1.7–5.5V, 2 kbit, 400 kHz max speed; different addressing scheme and ACK/NACK protocol | Needs I²C master hardware; incompatible instruction set and timing model vs. AT93C57 | Prefer for new designs with existing I²C bus resources; not a drop-in replacement due to protocol mismatch |
Compared with M95128-WMN6TP and BR24G02FJ-WE2, the AT93C57-10SC-1.8 uniquely supports true 1.8V operation with 3-wire simplicity and JEDEC SOIC-8 footprint-making it optimal for cost-sensitive, space-constrained industrial controllers where minimal GPIO usage and ultra-low-voltage compatibility are mandatory.
Availability
AT93C57-10SC-1.8 is available at Aetrix Electronics and suitable for industrial sensor calibration, automotive body control modules, medical diagnostics equipment, smart energy metering, and embedded configuration storage requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for AT93C57-10SC-1.8 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 support for the legacy AT93C family, providing datasheets, application notes, and long-term supply assurance for industrial and automotive customers.
The AT93C57 belongs to Atmel's serial EEPROM product line, designed specifically for low-pin-count, low-power nonvolatile storage in resource-constrained microcontroller systems where simplicity, reliability, and wide voltage operation are critical.
FAQ
What is the maximum clock frequency supported by AT93C57-10SC-1.8 at 1.8V?
The AT93C57-10SC-1.8 supports a maximum SK clock frequency of 250 kHz when operating at 1.8V, as specified in the AC Characteristics table. This corresponds to a minimum SK period of 4000 ns and defines the upper limit for reliable serial communication timing with host microcontrollers running at low voltage.
Can the ORG pin on AT93C57-10SC-1.8 be left unconnected?
No - the ORG pin on AT93C57-10SC-1.8 must be actively tied to either VCC or GND. Unlike higher-voltage variants, the 1.8V version does not include an internal pull-up resistor on ORG; leaving it floating results in undefined memory organization and unreliable operation.
Does AT93C57-10SC-1.8 support WRITE ALL and ERASE ALL commands?
No - the AT93C57-10SC-1.8 does not support WRITE ALL or ERASE ALL instructions. These commands are restricted to 4.5V–5.5V operation per the datasheet and are invalid at 1.8V. Only individual-address READ, WRITE, and ERASE are functional across the full 1.8V–5.5V range.
What is the standby current consumption of AT93C57-10SC-1.8 at 1.8V?
The AT93C57-10SC-1.8 draws a maximum standby current (ISB1) of 0.1 µA at VCC = 1.8V and TA = 25°C, as characterized in the DC Electrical Characteristics table. This ultra-low quiescent draw enables use in battery-backed or energy-harvesting systems requiring multi-year shelf life.
Is AT93C57-10SC-1.8 pin-compatible with AT93C56-10SC-1.8?
Yes - AT93C57-10SC-1.8 and AT93C56-10SC-1.8 share identical 8-lead JEDEC SOIC (8S1) packaging, pinout, and electrical interface. Both support 1.8V–5.5V operation and the same 3-wire protocol, differing only in memory size (2 kbit vs. 2 kbit - note: AT93C56 and AT93C57 are both 2 kbit, but with distinct address depth and instruction encoding).
AT93C57-10SC-1.8 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:
- 1.8V ~ 5.5V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AT93C57-10SC-1.8 FAQ
1.How can I place an order for AT93C57-10SC-1.8 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT93C57-10SC-1.8 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-1.8 reliable?
The price and inventory of AT93C57-10SC-1.8 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-1.8 is usually 5 days.
3.What payment methods are accepted for AT93C57-10SC-1.8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT93C57-10SC-1.8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT93C57-10SC-1.8?
AT93C57-10SC-1.8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT93C57-10SC-1.8 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-1.8?
For technical support, including AT93C57-10SC-1.8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT93C57-10SC-1.8 requirements.
6.How does Aetrix verify that AT93C57-10SC-1.8 is sourced from the original manufacturer or authorized distributors?
All AT93C57-10SC-1.8 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-1.8 meets industry standards.
7.What is the process for return or replacement of AT93C57-10SC-1.8?
All AT93C57-10SC-1.8 units undergo pre-shipment inspection (PSI). If there is an issue with AT93C57-10SC-1.8, 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-1.8 part is unused and in its original packaging.
Return procedure for AT93C57-10SC-1.8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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