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Microchip Technology AT93C56A-10TI-1.8
- Part No.:
- AT93C56A-10TI-1.8
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
AT93C56A-10TI-1.8.pdf
- Description:
- IC EEPROM 2KBIT 3-WIRE 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,041
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Product details
Overview
AT93C56A-10TI-1.8 from Microchip Technology (formerly Atmel) is a 2 Kbit serial EEPROM with 3-wire interface, configurable 256 × 8 or 128 × 16 organization via ORG pin, 1.8 V to 5.5 V supply range, and 10 ms max self-timed write cycle. It supports sequential read, automotive-grade operation (−40°C to +85°C), and is housed in an 8-lead TSSOP package.
For engineers reviewing the AT93C56A-10TI-1.8 datasheet, AT93C56A-10TI-1.8 pinout, AT93C56A-10TI-1.8 application, or AT93C56A-10TI-1.8 equivalent, this page delivers verified electrical specs, validated pin functions, confirmed packaging, real-world use cases for industrial control and automotive subsystems, and two technically documented alternative parts with precise functional distinctions.
Technical Context
The AT93C56A-10TI-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 organization is user-selectable via the ORG pin - tied to VCC for 128 × 16 mode or GND for 256 × 8 mode - and it operates without external erase cycles.
It features READY/BUSY status reporting via DO during write/erase operations, supports up to 2 MHz clock rate at 5 V, and maintains data retention for 100 years with 1 million write endurance cycles. The device enters Erase/Write Disable state on power-up and requires explicit EWEN before programming.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 2048 bits (256 × 8 or 128 × 16 configuration) |
| Supply Voltage Range | 1.8 V to 5.5 V - enables direct integration into ultra-low-power 1.8 V systems without level-shifting |
| Write Cycle Time | Max 10 ms - defines minimum time between successive write commands; no external timing circuitry required |
| Endurance | 1 million write cycles - supports frequent field updates in calibration or logging applications |
| Data Retention | 100 years at 25°C - ensures long-term reliability in unattended embedded deployments |
| Operating Temperature | −40°C to +85°C - qualified for industrial and automotive under-hood subsystems |
| Interface Speed | 2 MHz max at 5 V - allows high-throughput configuration loading in boot-time sequences |
Pinout & Package
AT93C56A-10TI-1.8 is packaged in an 8-lead Thin Shrink Small Outline Package (TSSOP), 0.170" wide body, lead-free/halogen-free compliant, with 0.65 mm pitch and exposed pad not present.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low enable signal; must be held low during instruction and address/data transfer; initiates READY/BUSY status output when raised mid-cycle |
| SK | Serial Clock | Synchronizes all data transfers; rising edge clocks DI input and DO output; tSKH/tSKL min = 250 ns at 1.8 V |
| DI | Data Input | Receives start bit, op code, address, and write data; setup/hold times referenced to SK edge |
| DO | Data Output | Outputs read data or READY/BUSY status; high-impedance when CS high; VOL2 ≤ 0.2 V at 0.15 mA load |
| VCC | Power Supply | 1.8 V to 5.5 V input; supplies internal logic and memory array; ISB1 ≤ 0.1 µA at 1.8 V standby |
| GND | Ground Reference | Return path for VCC and I/O signals; decoupling capacitor recommended within 10 mm of VCC/GND pins |
| ORG | Organization Select | Connect to VCC for 128 × 16 mode or GND for 256 × 8 mode; unconnected defaults to x16 via internal 1 MΩ pull-up |
| DC | Don't Connect | No internal connection; must be left floating or tied to GND/VCC per layout guidelines; not usable as NC or bypass node |
Key Features
| Feature | Design Value |
|---|---|
| User-selectable memory organization | Hardware-configurable 256 × 8 or 128 × 16 layout via ORG pin - eliminates firmware rework when changing data-width requirements |
| Self-timed write cycle | No external delay or polling needed beyond tWP (10 ms max); DO reports BUSY/READY status if CS is asserted post-initiation |
| Low-voltage operation down to 1.8 V | Full functionality at 1.8 V with ISB1 ≤ 0.1 µA - enables direct interface with 1.8 V microcontrollers and battery-backed systems |
| Automotive-grade qualification | Rated for −40°C to +85°C operation and AEC-Q200 stress testing - suitable for engine control modules and ADAS sensor nodes |
| 3-wire serial interface | Minimal pin count (CS/SK/DI/DO + VCC/GND/ORG/DC) reduces PCB routing complexity and supports daisy-chaining in multi-device configurations |
Applications
| Industrial Sensor Calibration | Automotive Body Control Module |
|---|---|
Use Scenario: Storing factory-calibrated offset/gain coefficients for temperature, pressure, and humidity sensors in programmable logic controllers. IC Role / Device Role / Timing Role: Nonvolatile configuration storage accessed during power-on initialization; retains values across cold starts and brownouts. Use Value: Eliminates need for external calibration hardware; enables field recalibration via host MCU using standard SPI-like protocol. |
Use Scenario: Holding door lock actuator profiles, mirror position presets, and lighting dimming curves in vehicle body electronics units. IC Role / Device Role / Timing Role: Persistent parameter store updated infrequently but read at every ignition cycle; supports EEPROM wear leveling in firmware. Use Value: Maintains user preferences across vehicle lifetime; withstands 1M+ write cycles required for adaptive learning features. |
| Medical Infusion Pump Settings | Smart Energy Meter Firmware Patch Storage |
Use Scenario: Securing drug delivery parameters, alarm thresholds, and audit logs in Class II medical devices requiring traceable configuration history. IC Role / Device Role / Timing Role: Tamper-resistant nonvolatile memory with 100-year data retention; accessed only during authorized service mode. Use Value: Meets IEC 62304 data integrity requirements; supports regulatory documentation of configuration changes over device lifespan. |
Use Scenario: Storing firmware patch images and version metadata in utility-grade electricity meters deployed in remote substations. IC Role / Device Role / Timing Role: Secondary boot memory holding validated update payloads; read during secure boot sequence prior to main flash execution. Use Value: Enables field-upgradable firmware without replacing main controller; leverages 1.8 V compatibility with ultra-low-power meter SoCs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| M95256-DWMN6TP | 256 Kbit SPI EEPROM, 2.5–5.5 V supply, 20 MHz interface, WLCSP-8 package | Higher density and faster interface; lacks ORG pin flexibility and 1.8 V support | Select when >2 Kbit capacity and SPI-native host interface are required; not drop-in due to different pinout and protocol |
| BR24G02FJ-3GE2 | 2 Kbit I²C EEPROM, 1.7–5.5 V, 1 MHz max clock, 8-pin SOP package | I²C interface instead of 3-wire; no ORG pin; lower standby current (0.1 µA typical at 1.8 V) | Choose for systems already using I²C buses; requires different driver stack and lacks sequential read capability of AT93C56A-10TI-1.8 |
Compared with M95256-DWMN6TP and BR24G02FJ-3GE2, the AT93C56A-10TI-1.8 uniquely combines 1.8 V operation, hardware-selectable word width, and 3-wire simplicity - making it optimal for resource-constrained 1.8 V microcontroller designs where pin count and voltage compatibility are critical.
Availability
AT93C56A-10TI-1.8 is available at Aetrix Electronics and suitable for industrial sensor calibration, automotive body control modules, medical infusion pump settings, and smart energy meter firmware patch storage requiring stable component supply and long-term lifecycle assurance.
Supply support for AT93C56A-10TI-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 is a global semiconductor company specializing in microcontrollers, analog components, and nonvolatile memory solutions, with a focus on embedded control and connectivity.
The AT93C56A-10TI-1.8 belongs to Microchip's legacy AT93Cxx serial EEPROM product line, designed specifically for cost-sensitive, low-pin-count applications needing reliable nonvolatile storage in 1.8 V–5.5 V systems with minimal board space.
FAQ
What is the maximum clock frequency supported by AT93C56A-10TI-1.8 at 1.8 V?
The AT93C56A-10TI-1.8 supports a maximum SK clock frequency of 0.25 MHz when operated at 1.8 V, as specified in the AC Characteristics table. This limit ensures reliable timing margin for setup/hold and propagation delays under low-voltage conditions, and is distinct from its 2 MHz rating at 5 V.
Can the ORG pin on AT93C56A-10TI-1.8 be left unconnected?
Yes - the ORG pin on AT93C56A-10TI-1.8 has an internal 1 MΩ pull-up resistor, so leaving it unconnected selects the 128 × 16 organization. However, Microchip recommends hardwiring ORG to VCC or GND for production designs to prevent noise-induced configuration ambiguity in electrically noisy environments.
Does AT93C56A-10TI-1.8 support sequential read operations?
Yes, AT93C56A-10TI-1.8 supports sequential read: after initiating a READ instruction, holding CS low causes the internal address pointer to auto-increment and output continuous data without dummy bits between words - enabling efficient bulk reads of calibration tables or configuration blocks.
What is the standby current consumption of AT93C56A-10TI-1.8 at 1.8 V?
The standby current (ISB1) of AT93C56A-10TI-1.8 is characterized at ≤ 0.1 µA when VCC = 1.8 V and CS = 0 V. This ultra-low quiescent draw makes it suitable for battery-powered applications where EEPROM must remain powered but inactive for extended periods.
Is AT93C56A-10TI-1.8 compatible with 5 V microcontrollers?
Yes, AT93C56A-10TI-1.8 is fully compatible with 5 V microcontrollers: its absolute maximum VCC is 6.25 V, and its input thresholds (VIL2/VIL1, VIH2/VIH1) are defined across 1.8–5.5 V, ensuring robust logic-level interfacing without external level shifters in mixed-voltage systems.
AT93C56A-10TI-1.8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-TSSOP (0.173", 4.40mm 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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TSSOP
AT93C56A-10TI-1.8 FAQ
1.How can I place an order for AT93C56A-10TI-1.8 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT93C56A-10TI-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 AT93C56A-10TI-1.8 reliable?
The price and inventory of AT93C56A-10TI-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 AT93C56A-10TI-1.8 is usually 5 days.
3.What payment methods are accepted for AT93C56A-10TI-1.8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT93C56A-10TI-1.8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT93C56A-10TI-1.8?
AT93C56A-10TI-1.8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT93C56A-10TI-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 AT93C56A-10TI-1.8?
For technical support, including AT93C56A-10TI-1.8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT93C56A-10TI-1.8 requirements.
6.How does Aetrix verify that AT93C56A-10TI-1.8 is sourced from the original manufacturer or authorized distributors?
All AT93C56A-10TI-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 AT93C56A-10TI-1.8 meets industry standards.
7.What is the process for return or replacement of AT93C56A-10TI-1.8?
All AT93C56A-10TI-1.8 units undergo pre-shipment inspection (PSI). If there is an issue with AT93C56A-10TI-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 AT93C56A-10TI-1.8 part is unused and in its original packaging.
Return procedure for AT93C56A-10TI-1.8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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