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Microchip Technology AT93C57-10PC-1.8
- Part No.:
- AT93C57-10PC-1.8
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
AT93C57-10PC-1.8.pdf
- Description:
- IC EEPROM 2KBIT 3-WIRE 2MHZ 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,643
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Product details
Overview
AT93C57-10PC-1.8 from Microchip Technology (formerly Atmel) is a 2K-bit 3-wire serial EEPROM with 1.8V to 5.5V supply voltage range, user-selectable 256 × 8 or 128 × 16 organization via ORG pin, self-timed write cycle (≤10 ms), and 1 million write endurance. It serves as nonvolatile configuration storage in low-power industrial sensors and battery-backed embedded controllers.
For engineers reviewing the AT93C57-10PC-1.8 datasheet, AT93C57-10PC-1.8 pinout, AT93C57-10PC-1.8 application, or AT93C57-10PC-1.8 equivalent, key selection criteria include 1.8V operation capability, 3-wire interface compatibility with legacy microcontrollers, standby current ≤0.1 µA at 1.8V, and PDIP-8 package suitability for through-hole prototyping and repair.
Technical Context
The AT93C57-10PC-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 architecture supports dual memory organization modes selected by the ORG pin-256 words × 8 bits or 128 words × 16 bits-with no external hardware change required.
Write operations are fully self-timed and require prior EWEN enable; READY/BUSY status is reported on DO when CS is raised during programming. The device operates across -40°C to +85°C (industrial grade), with tSKH/tSKL ≥1000 ns and fSK ≤250 kHz at 1.8V, ensuring robust timing margin in ultra-low-voltage systems.
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 interface with 1.8V logic and mixed-voltage systems |
| Max Clock Frequency | 250 kHz at 1.8V - defines maximum serial data throughput under lowest-voltage operation |
| Write Cycle Time | ≤10 ms - determines minimum time between successive write commands |
| Standby Current | ≤0.1 µA at VCC = 1.8V - critical for battery-powered applications requiring multi-year retention |
| Endurance | 1 million write cycles - supports frequent calibration or logging updates over product lifetime |
| Data Retention | 100 years at 25°C - ensures long-term reliability of stored configuration or calibration data |
Pinout & Package
AT93C57-10PC-1.8 uses an 8-pin PDIP (0.300" wide, JEDEC MS-001 BA) package with through-hole mounting. Pin 1 is marked by notch or dot; pinout follows standard orientation with CS on pin 1, SK on pin 2, DI on pin 3, DO on pin 4, VCC on pin 8, GND on pin 5, ORG on pin 7, and DC (no connect) on pin 6.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low enable for serial communication; must be held low during instruction transfer and sampling |
| SK | Serial Clock | Synchronizes all data transfers; rising edge samples DI, falling edge outputs DO |
| DI | Data Input | Receives start bit, op code, address, and write data; high-impedance when not selected |
| DO | Data Output | Outputs read data or READY/BUSY status; tri-stated when CS is high |
| GND | Ground Reference | Return path for VCC and signal currents; must be low-impedance for noise immunity |
| VCC | Power Supply | 1.8V–5.5V input; decoupling capacitor (0.1 µF) required within 10 mm of pin |
| ORG | Organization Select | High = 128 × 16 mode; low = 256 × 8 mode; unconnected defaults to x16 (not supported on 1.8V variants) |
| DC | No Connect | Internally unused; must remain floating - no external connection permitted |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-voltage operation | Functional down to 1.8V VCC with full specification compliance, enabling direct integration into 1.8V SoC subsystems |
| User-selectable memory organization | Hardware-configurable 256×8 or 128×16 layout eliminates need for firmware adaptation across memory-width variants |
| Self-timed write cycle | No external timing control needed; DO pin reports READY/BUSY status, simplifying host software polling logic |
| High-reliability nonvolatile storage | 1M write cycles and 100-year data retention meet industrial equipment longevity requirements without wear leveling |
| ESD protection | >4000V HBM - reduces risk of field failure during handling or system integration |
Applications
| Industrial Sensor Calibration Storage | Embedded Controller Configuration |
|---|---|
Use Scenario: Storing factory-calibrated offset/gain coefficients and temperature compensation tables in smart pressure transmitters. IC Role / Device Role / Timing Role: Nonvolatile configuration register holding persistent sensor parameters accessed at power-up. Use Value: Enables plug-and-play replacement without recalibration; 1.8V operation matches low-power sensor front-end ASICs. |
Use Scenario: Holding boot-time configuration flags, network MAC addresses, and security keys in HVAC controller modules. IC Role / Device Role / Timing Role: Serial configuration memory interfaced to 8-bit microcontroller GPIO pins via bit-banged 3-wire protocol. Use Value: Eliminates need for higher-voltage EEPROMs or external level shifters in 1.8V/3.3V mixed-signal designs. |
| Medical Device Parameter Backup | Automotive Body Control Module Settings |
Use Scenario: Retaining user-adjusted therapy parameters and usage logs in portable insulin pumps with coin-cell backup. IC Role / Device Role / Timing Role: Low-quiescent-current nonvolatile memory preserving critical settings during battery swaps. Use Value: 0.1 µA standby current at 1.8V extends coin-cell life beyond 5 years; AEC-Q200 qualification available for automotive-grade variants. |
Use Scenario: Storing seat position memory, mirror presets, and lighting profiles in entry-level automotive BCMs. IC Role / Device Role / Timing Role: Configuration EEPROM accessed during ignition-on initialization sequence. Use Value: PDIP-8 package allows manual rework in low-volume BCM assembly; 1.8V support aligns with modern CAN/LIN transceiver I/O levels. |
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 | Requires SPI-capable host; incompatible with 3-wire bit-banged implementations | Select if migrating to SPI infrastructure and higher density is needed |
| AT25020B-SSHL-T | 2 Kbit SPI EEPROM, supports 1.8V, but requires separate HOLD and WP pins | Additional control signals increase GPIO count; lacks ORG pin flexibility | Choose when SPI-native design exists and write-protection granularity is prioritized |
Compared with M95128-WMN6TP and AT25020B-SSHL-T, the AT93C57-10PC-1.8 uniquely combines 1.8V operation, 3-wire simplicity, and hardware-selectable memory width - making it optimal for cost-sensitive, space-constrained, and legacy-microcontroller-based systems where pin count and voltage compatibility are decisive.
Availability
AT93C57-10PC-1.8 is available at Aetrix Electronics and suitable for industrial sensor calibration storage, embedded controller configuration, medical device parameter backup, and automotive body control module settings requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for AT93C57-10PC-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 AT93C family of serial EEPROMs, emphasizing reliability, longevity, and broad voltage-range compatibility for industrial and automotive applications.
The AT93C57 belongs to Microchip's legacy serial EEPROM product line, designed specifically for cost-effective, low-pin-count nonvolatile storage in resource-constrained embedded systems requiring robust operation from 1.8V.
FAQ
What is the maximum clock frequency supported by AT93C57-10PC-1.8 at 1.8V?
The AT93C57-10PC-1.8 supports a maximum SK clock frequency of 250 kHz when operating at 1.8V, as specified in the AC Characteristics table under "1.8V ≤ VCC ≤ 5.5V" condition. This limit ensures reliable setup/hold timing margins for DI and DO transitions and is validated across the full industrial temperature range (-40°C to +85°C). Exceeding this frequency may result in read/write corruption.
Can the ORG pin be left unconnected on AT93C57-10PC-1.8?
No - the ORG pin must be actively driven high or low on the AT93C57-10PC-1.8. Unlike higher-voltage variants, the 1.8V version does not implement an internal pull-up on ORG. Leaving it floating results in undefined memory organization behavior and potential read/write failures. Tie ORG to VCC for 128 × 16 mode or to GND for 256 × 8 mode.
Does AT93C57-10PC-1.8 require a separate erase cycle before writing?
No - the AT93C57-10PC-1.8 performs automatic erase-before-write internally. Each WRITE instruction erases the target location prior to programming, eliminating the need for explicit ERASE commands in typical use cases. Only ERAL (Erase All) and individual ERASE instructions are provided for special maintenance or test scenarios.
What is the standby current of AT93C57-10PC-1.8 at 1.8V?
The standby current (ISB1) of AT93C57-10PC-1.8 is guaranteed ≤0.1 µA when VCC = 1.8V and CS = 0V, as specified in the DC Characteristics table. This ultra-low quiescent draw enables multi-year operation from primary lithium or coin-cell batteries in always-on monitoring applications without compromising data retention.
Is AT93C57-10PC-1.8 pin-compatible with other AT93Cxx devices in PDIP-8 package?
Yes - AT93C57-10PC-1.8 shares identical pinout and package dimensions (8P3) with AT93C46-10PC-1.8, AT93C56-10PC-1.8, and AT93C66-10PC-1.8. All use CS/SK/DI/DO/VCC/GND/ORG/DC assignment. However, memory size and instruction address width differ: AT93C57 uses 8-bit addressing (A7–A0), while AT93C46 uses 7-bit (A6–A0) and AT93C66 uses 9-bit (A8–A0).
AT93C57-10PC-1.8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- 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:
- Through Hole
- Supplier Device Package:
- 8-PDIP
AT93C57-10PC-1.8 FAQ
1.How can I place an order for AT93C57-10PC-1.8 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT93C57-10PC-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 AT93C57-10PC-1.8 reliable?
The price and inventory of AT93C57-10PC-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 AT93C57-10PC-1.8 is usually 5 days.
3.What payment methods are accepted for AT93C57-10PC-1.8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT93C57-10PC-1.8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT93C57-10PC-1.8?
AT93C57-10PC-1.8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT93C57-10PC-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 AT93C57-10PC-1.8?
For technical support, including AT93C57-10PC-1.8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT93C57-10PC-1.8 requirements.
6.How does Aetrix verify that AT93C57-10PC-1.8 is sourced from the original manufacturer or authorized distributors?
All AT93C57-10PC-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 AT93C57-10PC-1.8 meets industry standards.
7.What is the process for return or replacement of AT93C57-10PC-1.8?
All AT93C57-10PC-1.8 units undergo pre-shipment inspection (PSI). If there is an issue with AT93C57-10PC-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 AT93C57-10PC-1.8 part is unused and in its original packaging.
Return procedure for AT93C57-10PC-1.8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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