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Microchip Technology AT93C57-10SC
- Part No.:
- AT93C57-10SC
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AT93C57-10SC.pdf
- Description:
- IC EEPROM 2KBIT 3-WIRE 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,747
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Product details
Overview
AT93C57-10SC from Microchip Technology (formerly Atmel) is a 2K-bit serial EEPROM with 3-wire interface, user-selectable 256 × 8 or 128 × 16 organization via ORG pin, 2.7V–5.5V supply range, and 10 ms max self-timed write cycle. It operates in industrial temperature range (−40°C to +85°C) and is commonly used for configuration storage in embedded controllers, power management units, and sensor calibration modules.
For engineers reviewing the AT93C57-10SC datasheet, AT93C57-10SC pinout, AT93C57-10SC application, or AT93C57-10SC equivalent, this page delivers verified electrical specs, validated pin functions, confirmed package mapping (8-lead JEDEC SOIC), and two rigorously cross-referenced alternative parts for industrial-grade serial EEPROM selection.
Technical Context
The AT93C57-10SC implements a synchronous 3-wire serial interface (CS, SK, DI/DO) with instruction-based command set including READ, WRITE, ERASE, EWEN, and EWDS. Its dual-word-width architecture (8-bit or 16-bit mode) is selected dynamically by the ORG pin voltage level - tied to VCC for 128 × 16, grounded for 256 × 8.
Write operations require explicit Erase/Write Enable (EWEN) before programming; all writes are self-timed with READY/BUSY status reported on DO when CS is raised during tWP. The device supports up to 2 MHz clock rate at 5V and maintains data integrity with 1 million write cycles and 100-year retention.
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 | 2 MHz at VCC = 5.0V - supports high-speed configuration reads in boot-time sequences |
| Write Cycle Time | ≤10 ms - defines minimum delay between successive WRITE instructions in firmware |
| Endurance | 1,000,000 write cycles - ensures reliable field updates over product lifetime in telemetry or calibration use cases |
| Data Retention | 100 years at 25°C - guarantees nonvolatile storage integrity across decades of unpowered storage |
| Operating Temperature | −40°C to +85°C - qualified for industrial control, automotive body electronics, and outdoor equipment |
Pinout & Package
AT93C57-10SC is packaged in an 8-lead JEDEC-standard SOIC (package code 8S1), 0.150" wide, with gull-wing leads. Pin 1 is marked by a beveled corner or dot; the package is RoHS-compliant and moisture-sensitive level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low enable signal - must be held low for entire instruction sequence; raising CS during write returns READY/BUSY status on DO |
| SK | Serial Clock | Synchronous edge-triggered clock input - rising edge latches DI, falling edge outputs DO; timing constraints vary by VCC |
| DI | Data Input | Serial command/data input - carries start bit, op-code, address, and write data; setup/hold times depend on VCC |
| DO | Data Output | Open-drain serial output - drives read data, READY/BUSY status, or high-impedance when CS high |
| VCC | Power Supply | Primary supply rail - must remain stable within 2.7V–5.5V during all operations; decoupling capacitor required |
| GND | Ground | Reference return path - shared with host system ground; low-impedance connection critical for noise immunity |
| ORG | Organization Select | Logic-level configurable memory width - VCC = 16-bit mode (128 words), GND = 8-bit mode (256 words); internal pull-up defaults to 16-bit if floating |
| DC | Don't Connect | No internal connection - must be left unconnected or tied to GND/VCC only if required by board layout; no electrical function |
Key Features
| Feature | Design Value |
|---|---|
| User-selectable memory organization | Runtime-configurable 256 × 8 or 128 × 16 layout via ORG pin - eliminates need for separate part numbers for byte vs. word access patterns |
| Self-timed write cycle | No external timing control needed - firmware waits only for DO status or fixed 10 ms timeout, simplifying driver implementation |
| Industrial temperature grade | −40°C to +85°C operation - validated for deployment in motor drives, PLC I/O modules, and HVAC controllers |
| ESD protection | >4000V HBM - reduces risk of handling damage during assembly and field service |
| Low standby current | 10 µA max at 2.7V - enables battery-backed applications such as smart meters and portable diagnostics tools |
Applications
| Industrial Sensor Calibration | Embedded Controller Configuration |
|---|---|
Use Scenario: Storing factory-trimmed offset/gain coefficients for analog sensor front-ends in programmable logic controllers. IC Role / Device Role / Timing Role: Nonvolatile parameter storage accessed during power-up initialization; read-only during normal operation. Use Value: Enables field-replaceable sensor modules without reprogramming host firmware - coefficients persist across 100+ years and 1M write cycles. |
Use Scenario: Holding boot-time configuration flags (e.g., UART baud rate, I/O pin direction, watchdog timeout) in microcontroller-based motor drives. IC Role / Device Role / Timing Role: Serial configuration store accessed early in reset sequence via minimal 3-wire GPIO interface. Use Value: Reduces BOM count by eliminating dedicated configuration jumpers or DIP switches while supporting post-deployment parameter updates. |
| Power Management Unit Settings | Automotive Body Control Module |
Use Scenario: Saving user-defined power profiles (e.g., sleep current thresholds, wake-on-event masks) in AC/DC SMPS controllers. IC Role / Device Role / Timing Role: Low-voltage (2.7V–5.5V) EEPROM interfaced directly to PMU's internal 3.3V rail; accessed during soft-reset recovery. Use Value: Maintains energy-saving settings across brown-out events and cold starts without requiring backup battery or supercapacitor. |
Use Scenario: Storing door lock actuator calibration points and mirror position presets in vehicle body control units. IC Role / Device Role / Timing Role: Industrial-grade serial EEPROM operating across −40°C to +85°C ambient; accessed via CAN-linked microcontroller. Use Value: Meets AEC-Q100 stress requirements for non-safety-critical automotive subsystems with zero additional qualification overhead. |
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 (vs. 2K-bit 3-wire); 10 MHz max clock; 5 ms write cycle | Higher density and faster interface but requires SPI peripheral and different command protocol | Select when migrating to higher-capacity storage or existing SPI infrastructure exists |
| STK12C68-5LH1T | NVSRAM (nonvolatile SRAM) with 8K × 8 organization; 70 ns access; automatic STORE on power loss | Byte-level random access and nanosecond read latency vs. serial sequential access | Select when ultra-fast read/write cycles or frequent random-access updates are required |
Compared with M95256-WMN6TP and STK12C68-5LH1T, the AT93C57-10SC offers lowest pin count (3-wire), smallest footprint (8S1), and simplest firmware integration for low-density configuration storage - making it optimal for cost-sensitive, space-constrained industrial designs where 2K-bit capacity suffices.
Availability
AT93C57-10SC is available at Aetrix Electronics and suitable for industrial sensor calibration, embedded controller configuration, and power management unit settings requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for AT93C57-10SC 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 AT93Cxx family. The company specializes in microcontrollers, analog, and nonvolatile memory solutions for industrial, automotive, and consumer markets.
The AT93C57-10SC belongs to Microchip's legacy serial EEPROM product line, designed specifically for low-pin-count, low-power, and industrial-temperature nonvolatile storage in resource-constrained embedded systems.
FAQ
What is the exact memory organization of the AT93C57-10SC?
The AT93C57-10SC provides 2048 bits of EEPROM arranged as either 256 words × 8 bits or 128 words × 16 bits. The selection is controlled by the ORG pin: tied to VCC selects 128 × 16 mode; grounded selects 256 × 8 mode. This dual-organization capability is intrinsic to the AT93C57-10SC and does not require external decoding logic.
Does the AT93C57-10SC support 1.8V operation?
No, the AT93C57-10SC does not support 1.8V operation. Per the official Atmel documentation, AT93C57 variants are specified for 2.7V–5.5V and 2.5V–5.5V supply ranges only. The 1.8V version is exclusive to the AT93C46 family. Using the AT93C57-10SC below 2.7V may result in unreliable read/write behavior or failure to enter programming modes.
How is write protection implemented on the AT93C57-10SC?
Write protection on the AT93C57-10SC is enforced through a mandatory Erase/Write Enable (EWEN) instruction prior to any ERASE or WRITE command. Without EWEN, all programming instructions are ignored. The Erase/Write Disable (EWDS) instruction restores protection. This stateful mechanism is built into the AT93C57-10SC's internal control logic and requires no external hardware.
What package type does the AT93C57-10SC use, and is it lead-free?
The AT93C57-10SC uses an 8-lead JEDEC-standard SOIC package (package code 8S1), 0.150" wide. It is RoHS-compliant and lead-free per Microchip's standard manufacturing process. The device meets J-STD-020 moisture sensitivity level 3 and requires bake conditioning before reflow if exposed beyond floor life.
Can the AT93C57-10SC be used in automotive applications?
Yes - the AT93C57-10SC is qualified for industrial temperature range (−40°C to +85°C) and is widely deployed in non-safety-critical automotive applications such as body control modules, seat/mirror memory, and lighting control units. While not AEC-Q100 certified as a standalone component, its robustness and qualification profile make it suitable for automotive environments when used within system-level qualification boundaries.
AT93C57-10SC 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:
- 4.5V ~ 5.5V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AT93C57-10SC FAQ
1.How can I place an order for AT93C57-10SC through Aetrix?
Please submit a Request for Quotation (RFQ) for AT93C57-10SC 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 reliable?
The price and inventory of AT93C57-10SC 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 is usually 5 days.
3.What payment methods are accepted for AT93C57-10SC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT93C57-10SC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT93C57-10SC?
AT93C57-10SC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT93C57-10SC 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?
For technical support, including AT93C57-10SC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT93C57-10SC requirements.
6.How does Aetrix verify that AT93C57-10SC is sourced from the original manufacturer or authorized distributors?
All AT93C57-10SC 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 meets industry standards.
7.What is the process for return or replacement of AT93C57-10SC?
All AT93C57-10SC units undergo pre-shipment inspection (PSI). If there is an issue with AT93C57-10SC, 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 part is unused and in its original packaging.
Return procedure for AT93C57-10SC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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