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Microchip Technology AT93C86A-10PU-1.8
- Part No.:
- AT93C86A-10PU-1.8
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
AT93C86A-10PU-1.8.pdf
- Description:
- IC EEPROM 16KBIT 3-WIRE 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:579
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Product details
Overview
AT93C86A-10PU-1.8 from Microchip Technology is a 16-Kbit three-wire serial EEPROM with user-selectable x8 (2,048 × 8) or x16 (1,024 × 16) organization, operating from 1.8V to 5.5V, rated for -40°C to +85°C, and featuring Schmitt-trigger inputs and self-timed write cycles up to 10 ms - deployed in industrial control modules for configuration storage.
For engineers reviewing the AT93C86A-10PU-1.8 datasheet, AT93C86A-10PU-1.8 pinout, AT93C86A-10PU-1.8 application, or AT93C86A-10PU-1.8 equivalent, this page delivers verified pin functions, low-voltage timing constraints, organization-selectable memory mapping, endurance/reliability specs, and real-world use context for embedded system design and BOM validation.
Technical Context
The AT93C86A-10PU-1.8 implements a synchronous three-wire serial interface (CS/SK/DI/DO) with dual-memory-organization selection via the ORG pin - tied to VCC for x16 mode or GND for x8 mode - enabling flexible data-width alignment without external logic. Its internal power-on reset (POR) circuit enforces tPUP ≥ 100 µs command delay after stable VCC ≥ 1.8V.
Timing is synchronized on SK rising edges for both input latching and DO output, with clock frequency scaling from 250 kHz at 1.8V to 2 MHz at 5.5V. The DO pin serves dual roles: serial data output during READ and Ready/Busy status reporting post-write when CS is reasserted after tCS ≥ 1000 ns.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Capacity | 16 Kbit (2,048 × 8 or 1,024 × 16), selectable via ORG pin - supports byte- or word-aligned firmware parameter storage |
| Supply Voltage Range | 1.8V to 5.5V - enables direct integration into 1.8V, 2.5V, 3.3V, and 5V systems without level-shifting |
| Operating Temperature | -40°C to +85°C - qualified for industrial-grade embedded controllers and automotive body electronics |
| Write Endurance | 1,000,000 cycles - sufficient for frequent calibration or runtime configuration updates over product lifetime |
| Data Retention | 100 years at 55°C - ensures long-term integrity of stored device identifiers, security keys, or calibration coefficients |
| Max Clock Frequency | 2 MHz at 4.5–5.5V; 1 MHz at 2.7–5.5V; 250 kHz at 1.8–5.5V - defines maximum serial throughput per voltage grade |
| Write Cycle Time | 0.1–10 ms (self-timed) - eliminates need for external write-complete polling delay in host firmware |
| Input Filtering | Schmitt-trigger + noise filtering on all inputs - improves robustness against EMI in motor-driven or switching-power environments |
Pinout & Package
AT93C86A-10PU-1.8 is packaged in an 8-lead PDIP (Plastic Dual In-line Package) with 0.300-inch body width, lead pitch 0.100 inch, and through-hole mounting. Pin 1 is marked by notch or dot; package is RoHS-compliant and halide-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-high enable: device ignores DI and tri-states DO when CS = low - enables multi-device bus sharing |
| SK | Serial Data Clock | Rising-edge synchronous interface clock - controls timing of DI sampling and DO output transitions |
| DI | Serial Data Input | Command/address/data input path - accepts 11-bit address + opcode for READ/ERASE/WRITE operations |
| DO | Serial Data Output | Read data output or Ready/Busy status indicator - outputs logic '1' when write complete, '0' during active programming |
| GND | Ground Reference | System ground return for VCC and signal paths - must be low-impedance connection to minimize noise coupling |
| ORG | Organization Select | Configures memory map: high = 1,024 × 16; low = 2,048 × 8 - determines address width and data bus alignment |
| NC | No Connect | Internally unconnected pin - must remain floating or tied to GND/VCC per layout best practice; no electrical function |
| VCC | Power Supply | 1.8V–5.5V core supply - powers EEPROM array, control logic, and HV generation; requires local 0.1 µF decoupling |
Key Features
| Feature | Design Value |
|---|---|
| User-selectable memory organization | Hardware-configurable x8/x16 mode via ORG pin - eliminates need for software bit-packing or external multiplexing |
| Low-voltage operation down to 1.8V | Valid operation across 1.8V–5.5V range - supports battery-powered IoT nodes and mixed-voltage MCU interfaces |
| Self-timed write cycle | No external timing control required - host can issue WRITE then poll DO for completion, simplifying driver implementation |
| Schmitt-trigger and filtered inputs | Immunity to slow-rising or noisy clock/select signals - reduces false triggering in electrically noisy industrial enclosures |
| 100-year data retention | Guaranteed nonvolatile storage life under thermal stress - meets long-lifecycle requirements for medical and infrastructure equipment |
| Green packaging | Lead-free, halide-free, RoHS-compliant PDIP - satisfies global environmental compliance without performance trade-offs |
Applications
| Industrial PLC Configuration Storage | Automotive Body Control Module (BCM) |
|---|---|
Use Scenario: Storing calibrated sensor offsets, I/O mapping tables, and firmware update flags in programmable logic controllers deployed in factory automation lines. IC Role / Device Role / Timing Role: Nonvolatile configuration register - retains settings across power cycles and supports field-updatable parameters via serial interface. Use Value: Enables plug-and-play replacement without manual reconfiguration; 1.8V compatibility allows direct interfacing with low-power ARM Cortex-M3/M4 MCUs. | Use Scenario: Holding door lock actuator profiles, mirror position presets, and lighting dimming curves in automotive BCMs operating across wide temperature ranges. IC Role / Device Role / Timing Role: Parameter memory - stores user-customized settings that persist through ignition cycles and survive cold cranking voltage dips. Use Value: ORG pin flexibility allows x16 mode for compact storage of 16-bit PWM duty cycles; 100-year retention ensures lifetime validity without backup batteries. |
| Medical Infusion Pump Calibration | Smart Energy Meter Firmware Parameters |
Use Scenario: Securing flow-rate calibration coefficients, alarm thresholds, and usage logs in Class II medical devices requiring regulatory traceability and long-term reliability. IC Role / Device Role / Timing Role: Trusted configuration vault - provides tamper-resistant, write-protected storage for safety-critical operational constants. Use Value: 1,000,000 write cycles support daily recalibration; industrial temp rating validates operation inside sealed pump housings up to +85°C. | Use Scenario: Maintaining tariff schedules, meter ID, phase calibration data, and firmware version stamps in ANSI C12.20-compliant smart meters exposed to outdoor ambient extremes. IC Role / Device Role / Timing Role: Secure parameter repository - retains metrology-critical values across decades of field deployment with zero maintenance. Use Value: 100-year data retention at 55°C exceeds IEC 62056-21 lifetime requirements; Schmitt-trigger inputs reject conducted noise from switching power supplies. |
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 (4-wire), 2.5–5.5V supply, 5 MHz max clock - higher density but incompatible protocol and voltage lower limit | Requires SPI master support and lacks ORG-selectable organization - unsuitable for legacy three-wire designs or sub-2.5V systems | Select only if migrating to SPI architecture and needing >16 Kbit capacity; not drop-in compatible |
| AT25128B-SSHL-T | 128 Kbit SPI EEPROM, 1.8–5.5V, 20 MHz clock - same voltage range but different interface, no ORG pin, higher speed | Supports faster firmware updates but demands SPI-capable host and lacks hardware-configurable memory width | Choose for new designs prioritizing throughput over pin compatibility; requires PCB and firmware redesign |
Compared with M95128-WMN6TP and AT25128B-SSHL-T, the AT93C86A-10PU-1.8 uniquely offers hardware-selectable x8/x16 organization, true 1.8V operation with three-wire simplicity, and proven industrial reliability - making it optimal for cost-sensitive, space-constrained, or legacy-compatible embedded systems where protocol migration is impractical.
Availability
AT93C86A-10PU-1.8 is available at Aetrix Electronics and suitable for industrial PLCs, automotive BCMs, medical infusion pumps, and smart energy meters requiring stable component supply, long-lifecycle assurance, and RoHS-compliant through-hole assembly.
Supply support for AT93C86A-10PU-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 U.S.-based semiconductor company specializing in microcontrollers, analog devices, and nonvolatile memory solutions, with ISO 9001-certified manufacturing and global distribution.
The AT93C86A belongs to Microchip's legacy Atmel serial EEPROM product line, designed specifically for reliable, low-power, pin-efficient configuration storage in industrial, automotive, and medical electronics where three-wire simplicity and voltage flexibility are critical.
FAQ
What is the exact memory organization supported by AT93C86A-10PU-1.8?
The AT93C86A-10PU-1.8 supports two memory organizations selected by the ORG pin: 2,048 words × 8 bits (x8) when ORG is tied to GND, or 1,024 words × 16 bits (x16) when ORG is tied to VCC. Both configurations deliver 16 Kbit total capacity. This hardware-selectable mode is confirmed in DS20006261A-page 6 and Table 5-2 of the official datasheet.
Does AT93C86A-10PU-1.8 require external pull-up resistors on its serial interface lines?
The AT93C86A-10PU-1.8 does not require external pull-ups on SK, DI, or DO - these pins are actively driven. However, CS and ORG may need external biasing depending on system design: CS should be pulled low when inactive, and ORG must be solidly tied to VCC or GND (not left floating) to guarantee deterministic organization selection per DS20006261A-page 6.
What is the maximum clock frequency supported by AT93C86A-10PU-1.8 at 1.8V supply?
At VCC = 1.8V, the AT93C86A-10PU-1.8 supports a maximum serial clock (SK) frequency of 250 kHz, as specified in Table 4-3 (AC Characteristics) of DS20006261A. This limit ensures reliable setup/hold timing margins under low-voltage conditions and is distinct from the 2 MHz rating valid only at 4.5–5.5V.
How is write completion signaled on AT93C86A-10PU-1.8?
Write completion on AT93C86A-10PU-1.8 is signaled via the DO pin: after initiating a WRITE or ERASE command, the host must hold CS low for tWP (≤10 ms), then bring CS high for ≥tCS (≥1000 ns at 1.8V). If DO outputs logic '1', the operation completed successfully; logic '0' indicates ongoing programming. This Ready/Busy protocol is defined in DS20006261A-page 14 and Figure 5-5.
Is AT93C86A-10PU-1.8 pin-compatible with other members of the AT93CxxA family?
Yes - AT93C86A-10PU-1.8 shares identical pinout, interface protocol, and DC/AC characteristics with AT93C46A, AT93C56A, and AT93C66A in the same 8-lead PDIP package (DS20006261A-page 4). Differences lie only in memory size (1K/2K/4K/8K/16K) and internal addressing depth; all use the same CS/SK/DI/DO/ORG/GND/NC/VCC arrangement.
AT93C86A-10PU-1.8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- EEPROM
- Technology:
- EEPROM
- Memory Size:
- 16Kbit
- Memory Organization:
- 2K x 8, 1K 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:
- Through Hole
- Supplier Device Package:
- 8-PDIP
AT93C86A-10PU-1.8 FAQ
1.How can I place an order for AT93C86A-10PU-1.8 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT93C86A-10PU-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 AT93C86A-10PU-1.8 reliable?
The price and inventory of AT93C86A-10PU-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 AT93C86A-10PU-1.8 is usually 5 days.
3.What payment methods are accepted for AT93C86A-10PU-1.8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT93C86A-10PU-1.8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT93C86A-10PU-1.8?
AT93C86A-10PU-1.8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT93C86A-10PU-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 AT93C86A-10PU-1.8?
For technical support, including AT93C86A-10PU-1.8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT93C86A-10PU-1.8 requirements.
6.How does Aetrix verify that AT93C86A-10PU-1.8 is sourced from the original manufacturer or authorized distributors?
All AT93C86A-10PU-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 AT93C86A-10PU-1.8 meets industry standards.
7.What is the process for return or replacement of AT93C86A-10PU-1.8?
All AT93C86A-10PU-1.8 units undergo pre-shipment inspection (PSI). If there is an issue with AT93C86A-10PU-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 AT93C86A-10PU-1.8 part is unused and in its original packaging.
Return procedure for AT93C86A-10PU-1.8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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