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Microchip Technology AT28C010E-12TU-T
- Part No.:
- AT28C010E-12TU-T
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 32-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
AT28C010E-12TU-T.pdf
- Description:
- IC EEPROM 1MBIT PARALLEL 32TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,785
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Product details
Overview
AT28C010E-12TU-T from Microchip Technology is a 1-Mbit (128K × 8) paged parallel EEPROM with 120 ns read access time, JEDEC-standard byte-wide pinout, and industrial temperature range (–40°C to +85°C). It supports automatic 1–128-byte page writes with internal latching and timer, operates from a single 5V ±10% supply, and delivers 40 mA active current and 200 µA CMOS standby current for embedded system firmware storage.
For engineers reviewing the AT28C010E-12TU-T datasheet, AT28C010E-12TU-T pinout, AT28C010E-12TU-T application, or AT28C010E-12TU-T equivalent, key selection criteria include verified 100,000 write endurance, DATA Polling and Toggle Bit write-completion detection, hardware/software data protection, and compatibility with legacy SRAM-based memory interfaces in industrial control and instrumentation designs.
Technical Context
The AT28C010E-12TU-T implements a paged architecture with a 128-byte internal page register, enabling burst-aligned writes without external address/data bus hold. Its dual-line chip enable (CE) and output enable (OE) logic allows flexible bus contention management during mixed-read/write operations.
It integrates VCC sense (write inhibit below 3.8 V), 5 ms power-on delay, noise filtering on WE/CE (<15 ns pulse rejection), and optional software data protection (SDP) via three-byte command sequences - all supporting robust operation in noisy industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 1 Mbit (131,072 × 8), directly replaceable in 128K-word SRAM-compatible sockets |
| Read Access Time | 120 ns max - enables direct substitution for fast static RAM in legacy microcontroller systems |
| Page Write Cycle | 10 ms max - reduces firmware update latency vs. byte-by-byte programming |
| Write Endurance | 100,000 cycles - validated for frequent field-upgrade applications like calibration data storage |
| Data Retention | 10 years at 85°C - ensures long-term reliability in unattended industrial deployments |
| Supply Voltage | 5V ±10% - interoperable with standard TTL/CMOS logic rails without level-shifting |
| Operating Temperature | –40°C to +85°C - qualified for industrial-grade control modules and test equipment |
Pinout & Package
AT28C010E-12TU-T is available in 32-lead TSOP (8 × 20 mm) with matte tin finish, compliant with JEDEC MO-142 BD. Pin 1 is marked by a beveled corner; NC pins are at positions 6 and 9 (TSOP).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A16 | Address Inputs | 17-bit address bus; A7–A16 define 128-byte page boundaries for page write alignment |
| I/O0–I/O7 | Bidirectional Data Bus | 8-bit parallel interface; I/O7 provides DATA Polling complement output; I/O6 toggles during write |
| CE | Chip Enable | Active-low device select; must remain de-asserted ≥50 ns between reads to prevent data corruption |
| OE | Output Enable | Active-low output gate; high-Z when asserted alone, enabling shared-bus arbitration |
| WE | Write Enable | Active-low write strobe; initiates byte or page write on falling edge with CE low |
| VCC | Power Supply | +5V ±10%; internal VCC sense disables writes if voltage drops below 3.8 V |
| GND | Ground Reference | Signal and power return; decoupling capacitor required within 1 cm of VCC/GND pins |
| NC (pins 6, 9) | No Connect | Unbonded; must remain floating - no external pull-up/down or routing |
Key Features
| Feature | Design Value |
|---|---|
| Automatic Page Write | Internally latches up to 128 bytes with self-timed 10 ms programming - eliminates external timing logic |
| DATA Polling & Toggle Bit | I/O7 complement output and I/O6 toggle provide real-time, bus-compatible write completion signaling |
| Hardware Write Protection | VCC sense, 5 ms power-on delay, and noise-filtered WE/CE inputs prevent spurious writes during brown-out |
| Software Data Protection (SDP) | User-enabled/disabled via 3-byte command sequence (AAh/55h/A0h) - secures firmware against accidental overwrite |
| Device Identification Area | 128 bytes at 1FF80H–1FFFFH accessible with A9 = 12 V - supports unique unit serialization and traceability |
Applications
| Industrial PLC Firmware Storage | Medical Device Calibration Data |
|---|---|
|
Use Scenario: Storing boot code and configuration parameters in programmable logic controllers operating continuously in factory-floor environments. IC Role / Device Role / Timing Role: Nonvolatile program memory with SRAM-compatible interface, providing deterministic 120 ns read access for real-time scan-cycle execution. Use Value: 100,000-cycle endurance and 10-year data retention ensure firmware integrity over extended maintenance intervals without battery backup. |
Use Scenario: Holding calibrated sensor offsets and gain coefficients in portable diagnostic instruments subject to periodic recalibration. IC Role / Device Role / Timing Role: Secure parameter storage with software data protection enabled to prevent inadvertent erasure during field service. Use Value: Hardware VCC-sense and SDP together eliminate risk of corruption during power transitions common in battery-operated devices. |
| Automotive ECU Configuration | Test Equipment Setup Profiles |
|
Use Scenario: Retaining vehicle-specific tuning maps and diagnostic settings in engine control units across thermal cycling and vibration. IC Role / Device Role / Timing Role: Industrial-temperature EEPROM interfaced directly to 8-bit microcontrollers via parallel bus, eliminating serial protocol overhead. Use Value: –40°C to +85°C operation and 120 ns access support deterministic timing in safety-critical boot sequences. |
Use Scenario: Saving user-defined measurement configurations and calibration histories in benchtop oscilloscopes and signal analyzers. IC Role / Device Role / Timing Role: High-reliability nonvolatile memory for infrequently updated but mission-critical setup data. Use Value: Page write capability reduces save time to ≤10 ms per 128-byte block, improving user experience during profile switching. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar parallel EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT28C010-12TU | Same die, 10K write endurance rating (vs. 100K for AT28C010E-12TU-T); identical speed, package, and pinout | Suitable for low-update-frequency applications where 10K cycles suffice (e.g., one-time factory programming) | Select AT28C010-12TU only if endurance requirements are ≤10,000 cycles and cost sensitivity outweighs longevity needs. |
| MX28LV160CBTI-12G | 16-Mbit capacity, 3V core (with 5V I/O tolerance), 120 ns access, but uses different command set and lacks SDP | Requires firmware adaptation for command protocol and lacks software write lock - unsuitable for drop-in replacement | Consider MX28LV160CBTI-12G only when higher density and lower voltage operation are prioritized over pin compatibility and data protection features. |
Compared with AT28C010-12TU and MX28LV160CBTI-12G, the AT28C010E-12TU-T uniquely combines 100K endurance, JEDEC-standard pinout, integrated SDP, and industrial temperature grade - making it the only option that preserves legacy design integrity while extending field life in upgrade-sensitive applications.
Availability
AT28C010E-12TU-T is available at Aetrix Electronics and suitable for industrial PLC firmware storage, medical device calibration data retention, and automotive ECU configuration requiring stable component supply across multi-year production cycles.
Supply support for AT28C010E-12TU-T 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 devices, and nonvolatile memory solutions, with a focus on industrial, automotive, and communications markets.
The AT28C010E-12TU-T belongs to Microchip's legacy parallel EEPROM product line, engineered for seamless integration into SRAM-based memory subsystems in cost-sensitive, long-lifecycle industrial and instrumentation applications.
FAQ
What is the guaranteed write endurance of the AT28C010E-12TU-T?
The AT28C010E-12TU-T is rated for 100,000 write/erase cycles - confirmed in the official Microchip datasheet DS20006331A, Section 4.3 (DC Characteristics) and Table 6-1 (Package Marking Information), where the "E" suffix explicitly denotes Extended endurance. This exceeds the 10,000-cycle rating of the base AT28C010-12TU variant and supports frequent field updates in applications like calibration data logging.
Does the AT28C010E-12TU-T support both hardware and software write protection?
Yes, the AT28C010E-12TU-T implements dual-layer protection: hardware features include VCC sensing (disables writes below 3.8 V), 5 ms power-on delay, and 15 ns noise filtering on WE/CE; software protection is enabled via a three-byte command sequence (AAh → 55h → A0h) that locks writes until the disable sequence (AAh → 55h → 80h → AAh → 20h → 55h) is issued - fully documented in Sections 5.11 and 5.12 of the datasheet.
How is write completion detected on the AT28C010E-12TU-T?
Write completion on the AT28C010E-12TU-T is detectable via two independent methods: DATA Polling (reading I/O7 returns complement of last written byte until completion, then true data) and Toggle Bit (I/O6 toggles between 0 and 1 during programming, then stabilizes). Both are supported simultaneously and require no external components - detailed in Sections 5.14 and 5.16 of DS20006331A.
What package type and pin count does the AT28C010E-12TU-T use?
The AT28C010E-12TU-T uses a 32-lead Plastic Thin Small Outline Package (TSOP), Type I, measuring 8 × 20 mm per JEDEC MO-142 BD. Pin 1 is identified by a beveled corner; pins 6 and 9 are No Connect (NC). This matches the "T" in the part number and is distinct from the PLCC variant ("J"), as specified in Section 6.1 and Figure 1-2 of DS20006331A.
Is the AT28C010E-12TU-T compatible with standard 5V TTL/CMOS logic levels?
Yes, the AT28C010E-12TU-T features full 5V TTL/CMOS compatibility: input thresholds meet VIH ≥ 2.0 V and VIL ≤ 0.8 V; output drive meets VOL ≤ 0.45 V (IOL = 2.1 mA) and VOH ≥ 2.4 V (IOH = –400 µA), per Table 4-2 in DS20006331A. This allows direct connection to legacy 8051, Z80, and 68K-family microcontrollers without level shifters.
AT28C010E-12TU-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 32-TFSOP (0.724", 18.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- EEPROM
- Technology:
- EEPROM
- Memory Size:
- 1Mbit
- Memory Organization:
- 128K x 8
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- 10ms
- Access Time:
- 120 ns
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TC)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-TSOP
AT28C010E-12TU-T FAQ
1.How can I place an order for AT28C010E-12TU-T through Aetrix?
Please submit a Request for Quotation (RFQ) for AT28C010E-12TU-T 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 AT28C010E-12TU-T reliable?
The price and inventory of AT28C010E-12TU-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT28C010E-12TU-T is usually 5 days.
3.What payment methods are accepted for AT28C010E-12TU-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT28C010E-12TU-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT28C010E-12TU-T?
AT28C010E-12TU-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT28C010E-12TU-T 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 AT28C010E-12TU-T?
For technical support, including AT28C010E-12TU-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT28C010E-12TU-T requirements.
6.How does Aetrix verify that AT28C010E-12TU-T is sourced from the original manufacturer or authorized distributors?
All AT28C010E-12TU-T 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 AT28C010E-12TU-T meets industry standards.
7.What is the process for return or replacement of AT28C010E-12TU-T?
All AT28C010E-12TU-T units undergo pre-shipment inspection (PSI). If there is an issue with AT28C010E-12TU-T, 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 AT28C010E-12TU-T part is unused and in its original packaging.
Return procedure for AT28C010E-12TU-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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