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Microchip Technology AT93C57W-10SC-2.7
- Part No.:
- AT93C57W-10SC-2.7
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AT93C57W-10SC-2.7.pdf
- Description:
- IC EEPROM 2KBIT 3-WIRE 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,620
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Product details
Overview
AT93C57W-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, low-voltage operation (2.7V–5.5V), self-timed 10 ms max write cycle, and 1 million write endurance. It serves as nonvolatile configuration storage in embedded microcontroller systems requiring compact, reliable, and voltage-flexible memory.
For engineers reviewing the AT93C57W-10SC-2.7 datasheet, AT93C57W-10SC-2.7 pinout, AT93C57W-10SC-2.7 application, or AT93C57W-10SC-2.7 equivalent, key selection criteria include VCC range compatibility, ORG-pin configurable word width, 3-wire interface timing at 1 MHz (2.7V), standby current ≤10 µA, and JEDEC SOIC-8 package suitability for space-constrained PCBs.
Technical Context
The AT93C57W-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 internal logic decodes 7-bit addresses (A7–A0) for x8 mode or 6-bit addresses (A6–A0) for x16 mode based on ORG pin state.
Write operations require prior EWEN enable and are self-timed with READY/BUSY status reported via DO when CS is raised post-command; no external erase cycle is needed. The device supports industrial temperature range (−40°C to +85°C) and features ESD protection >4000V HBM.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 2048 bits (256 × 8 or 128 × 16 words) |
| Supply Voltage | 2.7V to 5.5V - enables direct interfacing with 3.3V and 5V microcontrollers without level shifters |
| Max Clock Frequency | 1 MHz at 2.7V - defines maximum serial data throughput in low-voltage systems |
| Write Cycle Time | 10 ms max - determines minimum time between successive write commands |
| Endurance | 1 million write cycles - supports long-term field calibration or parameter logging |
| Data Retention | 100 years - ensures firmware or configuration integrity across product lifecycle |
| Standby Current | ≤10 µA at 2.7V - critical for battery-powered devices during sleep modes |
Pinout & Package
AT93C57W-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/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low enable; must be held low for entire instruction sequence; raising it mid-cycle returns READY/BUSY status on DO |
| SK | Serial Clock | Synchronizes all data transfers; rising edge samples DI, falling edge outputs DO |
| DI | Data Input | Receives start bit, opcode, address, and write data; high-impedance when not selected |
| DO | Data Output | Drives read data or READY/BUSY status; high-impedance when CS is high or during write execution |
| VCC | Power Supply | Primary supply rail; must remain stable within 2.7V–5.5V during all operations |
| GND | Ground Reference | Return path for all I/O and internal circuitry; requires low-impedance connection to system ground plane |
| ORG | Organization Select | Logic-high selects 128 × 16 mode; grounded selects 256 × 8 mode; unconnected defaults to x16 via internal pull-up |
| DC | No Connect | Internally unused pin; must be left floating or tied to GND/VCC per layout best practice - no electrical function |
Key Features
| Feature | Design Value |
|---|---|
| User-selectable memory organization | Configurable 256 × 8 or 128 × 16 layout via ORG pin - eliminates need for software bit-packing in host MCU |
| Self-timed write cycle | Hardware-managed 10 ms max programming - removes requirement for host to monitor timing or insert delays |
| 3-wire serial interface | Minimal pin count (CS/SK/DI/DO) - reduces MCU GPIO usage and simplifies routing on dense PCBs |
| Low-voltage operation | 2.7V–5.5V supply range - supports direct integration into mixed-voltage systems without regulators or translators |
| Industrial temperature grade | −40°C to +85°C operating range - qualified for automotive body electronics and industrial control environments |
Applications
| Motor Control Configuration Storage | Smart Sensor Calibration Data |
|---|---|
Use Scenario: Storing motor phase alignment offsets, PID tuning parameters, and fault history in BLDC driver modules. IC Role / Device Role / Timing Role: Nonvolatile configuration register accessed during MCU boot and runtime reconfiguration. Use Value: Enables field-updatable motor profiles without firmware reflashing; retains settings through power loss. | Use Scenario: Holding factory-trimmed gain/offset coefficients and temperature compensation tables in MEMS pressure sensors. IC Role / Device Role / Timing Role: Read-on-power-up data source for sensor signal conditioning pipeline initialization. Use Value: Achieves ±0.1% full-scale accuracy without host MCU intervention; eliminates external calibration hardware. |
| Industrial PLC I/O Module Settings | Medical Device User Preferences |
Use Scenario: Saving channel-specific scaling factors, alarm thresholds, and input filter configurations in modular analog I/O cards. IC Role / Device Role / Timing Role: Persistent parameter store accessed via SPI-compatible 3-wire bus during module enumeration. Use Value: Allows hot-swap I/O modules to retain calibrated behavior without host reprogramming. | Use Scenario: Storing clinician-adjusted display brightness, audio volume, and alarm priority levels in portable patient monitors. IC Role / Device Role / Timing Role: Secure, low-power nonvolatile memory for user-configurable operational states. Use Value: Maintains HIPAA-compliant settings across battery swaps and firmware updates; consumes <10 µA in standby. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT25020B-SSHL-T | 2 Kbit SPI interface (4-wire), 1.8V–5.5V, 20 MHz clock, 5 ms write cycle | Requires dedicated SPI peripheral; faster throughput but higher pin count | Select when host MCU has dedicated SPI hardware and needs >1 MHz data rate |
| STK12C68-55I-WH6F | 8 Kbit NVSRAM, parallel interface, 4.5V–5.5V, 55 ns access, unlimited writes | Byte-level random access, no write delay, but larger footprint and higher VCC min | Select when frequent byte-level updates and zero-write-latency are required over density or voltage flexibility |
Compared with AT25020B-SSHL-T and STK12C68-55I-WH6F, the AT93C57W-10SC-2.7 offers optimal balance of ultra-low standby current, 3-wire simplicity, and dual-voltage support - making it preferred for cost-sensitive, space-constrained, and battery-aware designs where 1 MHz serial throughput suffices.
Availability
AT93C57W-10SC-2.7 is available at Aetrix Electronics and suitable for motor control configuration storage, smart sensor calibration data retention, and industrial PLC I/O module settings requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for AT93C57W-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 is a global semiconductor company specializing in microcontrollers, analog components, and nonvolatile memory solutions for embedded systems.
The AT93Cxx family was designed for low-pin-count, low-power serial configuration storage in resource-constrained microcontroller applications - emphasizing reliability, voltage flexibility, and ease of integration.
FAQ
What is the maximum clock frequency supported by AT93C57W-10SC-2.7 at 2.7V?
The AT93C57W-10SC-2.7 supports a maximum SK clock frequency of 1 MHz when operated at 2.7V. This is specified in the AC Characteristics table under fSK for the 2.7V ≤ VCC ≤ 5.5V condition. At 5.0V, the device supports up to 2 MHz. The 1 MHz limit at 2.7V ensures robust timing margin for reliable serial communication in low-voltage embedded systems using the AT93C57W-10SC-2.7.
How does the ORG pin affect memory organization in AT93C57W-10SC-2.7?
The ORG pin on the AT93C57W-10SC-2.7 selects between two internal memory configurations: when tied to VCC, it enables 128 × 16-bit organization; when grounded, it selects 256 × 8-bit organization. If left unconnected, an internal ~1 MΩ pull-up defaults to x16 mode. This hardware-selectable layout allows the same AT93C57W-10SC-2.7 device to match varying host MCU data bus widths without firmware changes.
Does AT93C57W-10SC-2.7 require a separate erase cycle before writing?
No, the AT93C57W-10SC-2.7 does not require a separate erase cycle before writing. Each WRITE instruction automatically erases and programs the target location in a single self-timed operation. The device only enters the ERASE/WRITE ENABLE state after an explicit EWEN command, and all programming (WRITE, ERASE, WRAL, ERAL) is internally managed - eliminating host-side erase scheduling overhead for the AT93C57W-10SC-2.7.
What is the standby current specification for AT93C57W-10SC-2.7 at 2.7V?
The standby current (ISB3) for AT93C57W-10SC-2.7 is specified as 6.0 µA (typical) to 10.0 µA (maximum) at VCC = 2.7V and TA = −40°C to +85°C, with CS = 0V. This ultra-low quiescent draw makes the AT93C57W-10SC-2.7 suitable for battery-backed or energy-harvesting systems where minimizing sleep-mode power is critical.
Is AT93C57W-10SC-2.7 compatible with 5V microcontrollers?
Yes, the AT93C57W-10SC-2.7 is fully compatible with 5V microcontrollers: its VCC range spans 2.7V to 5.5V, and its input thresholds (VIH1, VIL1) are defined for 4.5V–5.5V operation - ensuring reliable logic-level recognition. Outputs (VOH1, VOL1) meet 5V TTL standards (≥2.4V high, ≤0.4V low at 2.1 mA), enabling direct connection to 5V MCU GPIOs without level translation when using the AT93C57W-10SC-2.7.
AT93C57W-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
AT93C57W-10SC-2.7 FAQ
1.How can I place an order for AT93C57W-10SC-2.7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT93C57W-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 AT93C57W-10SC-2.7 reliable?
The price and inventory of AT93C57W-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 AT93C57W-10SC-2.7 is usually 5 days.
3.What payment methods are accepted for AT93C57W-10SC-2.7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT93C57W-10SC-2.7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT93C57W-10SC-2.7?
AT93C57W-10SC-2.7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT93C57W-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 AT93C57W-10SC-2.7?
For technical support, including AT93C57W-10SC-2.7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT93C57W-10SC-2.7 requirements.
6.How does Aetrix verify that AT93C57W-10SC-2.7 is sourced from the original manufacturer or authorized distributors?
All AT93C57W-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 AT93C57W-10SC-2.7 meets industry standards.
7.What is the process for return or replacement of AT93C57W-10SC-2.7?
All AT93C57W-10SC-2.7 units undergo pre-shipment inspection (PSI). If there is an issue with AT93C57W-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 AT93C57W-10SC-2.7 part is unused and in its original packaging.
Return procedure for AT93C57W-10SC-2.7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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