My Inquiry
My Account
Microchip Technology 11AA010-I/MS
- Part No.:
- 11AA010-I/MS
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
11AA010-I/MS.pdf
- Description:
- IC EEPROM 1KBIT SGL WIRE 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,944
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
11AA010-I/MS from Microchip Technology Inc. is a 1 Kbit (128 × 8) serial EEPROM with UNI/O® single I/O bus interface, operating from 1.8V to 5.5V, featuring 16-byte page write buffer, 1 µA max standby current (I-temp), and built-in write protection. It is used in space-constrained embedded systems for storing calibration data, configuration settings, or firmware parameters.
For engineers reviewing the 11AA010-I/MS datasheet, 11AA010-I/MS pinout, 11AA010-I/MS application, or 11AA010-I/MS equivalent, key selection considerations include its 1.8V minimum supply, SOT-23-3 package footprint, Manchester-encoded UNI/O timing compliance, and block-level write protection granularity.
Technical Context
The 11AA010-I/MS implements a Manchester-encoded, single-wire UNI/O® protocol where clock and data share the SCIO pin, eliminating dedicated clock lines and reducing PCB routing complexity. Its internal re-synchronization circuitry tolerates ±0.50% bus frequency drift per byte and ±0.06 UI input edge jitter.
It integrates a status register with Write-In-Progress (WIP) and Write-Enable Latch (WEL) flags, plus nonvolatile BP0/BP1 bits enabling 0%, 25%, 50%, or 100% array write protection. The device uses on-chip high-voltage generation for EEPROM programming and includes slope-controlled output drivers to suppress ground bounce.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Density | 1 Kbit (128 × 8 organization) - fixed memory map supporting compact configuration storage without over-provisioning. |
| VCC Range | 1.8V to 5.5V - enables direct interfacing with low-voltage microcontrollers (e.g., 1.8V/3.3V MCUs) without level-shifting. |
| Interface | UNI/O® single I/O bus - reduces pin count and PCB real estate versus I²C/SPI; requires only one GPIO with Manchester decoding capability. |
| Page Size | 16 bytes - allows efficient burst writes up to full page; avoids excessive write cycles when updating multiple adjacent parameters. |
| Endurance | 1,000,000 erase/write cycles - supports frequent field updates (e.g., metering logs, sensor calibration history) over product lifetime. |
| Data Retention | >200 years at +85°C - ensures long-term integrity of stored calibration coefficients or security keys in industrial environments. |
| Temp Range | –40°C to +85°C (Industrial) - qualified for operation in extended ambient conditions typical of industrial control and automotive cabin modules. |
| ESD Protection | >4,000 V HBM - provides robust handling during board assembly and end-user service without external protection diodes. |
Pinout & Package
11AA010-I/MS is packaged in an 8-pin MSOP (MS) package with exposed pad, measuring 3.0 mm × 3.0 mm × 1.0 mm. Pin 1 is SCIO (Serial Clock/Data I/O), Pin 2 is VSS (Ground), Pin 3 is VCC (Supply Voltage), and Pins 4–8 are No Connect (NC).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SCIO | Serial Clock and Data I/O | Single bidirectional line carrying Manchester-encoded bitstream; requires external pull-up resistor (typically 4.7 kΩ) and master-side edge timing control. |
| VSS | Ground Reference | Primary return path for internal logic and EEPROM programming current; must be low-impedance to prevent noise coupling into SCIO timing. |
| VCC | Power Supply Input | Supplies core logic and high-voltage generator; bypass capacitor (0.1 µF ceramic) required within 5 mm for stable write operations. |
| NC (Pins 4–8) | No Electrical Connection | Unused pins; must remain unconnected - no routing, soldering, or grounding to avoid parasitic capacitance or ESD path disruption. |
Key Features
| Feature | Design Value |
|---|---|
| Schmitt Trigger Inputs | 0.05 × VCC hysteresis on SCIO - rejects noise spikes up to 50 ns duration, enabling reliable communication in electrically noisy industrial enclosures. |
| Output Slope Control | Controlled rise/fall time on SCIO - limits di/dt to eliminate ground bounce that could corrupt adjacent analog or RF circuits on shared PCB layers. |
| Status Register Access | Real-time WIP and WEL flag read via RDSR command - allows host MCU to poll write completion without fixed delays or interrupt dependency. |
| Block Write Protection | BP0/BP1 bits enable hardware-selectable 0%/25%/50%/100% array lock - prevents accidental overwrite of critical bootloader or security keys during firmware updates. |
| Self-Timed Write Cycle | Internal 5–10 ms write timing - eliminates need for host to manage EEPROM programming delay; host proceeds immediately after NoMAK transmission. |
| Power-On Write Protection | Automatic WEL reset at POR/BOR - ensures EEPROM remains read-only until explicit WREN command, preventing corruption during power ramp-up. |
Applications
| Smart Sensor Calibration Storage | IoT Device Configuration Memory |
|---|---|
Use Scenario: Storing factory-trimmed offset/gain coefficients and temperature compensation tables in MEMS pressure sensors. IC Role / Device Role / Timing Role: Nonvolatile parameter store accessed during power-up initialization; SCIO timing synchronized to host MCU's GPIO toggle rate. Use Value: Enables <1.8V operation matching sensor ASIC supply, while 200-year data retention guarantees calibration validity across product lifecycle without recalibration. |
Use Scenario: Holding Wi-Fi credentials, MQTT broker addresses, and OTA update counters in battery-powered BLE gateways. IC Role / Device Role / Timing Role: Low-power configuration vault; enters 1 µA standby mode between BLE connection events to extend coin-cell life. Use Value: Single I/O interface minimizes GPIO usage on resource-constrained nRF52 MCUs, and page-write buffering reduces write time per credential update. |
| Industrial PLC I/O Module Settings | Medical Diagnostic Equipment Setup |
Use Scenario: Saving user-defined scaling factors, alarm thresholds, and channel enable states in DIN-rail mounted analog input modules. IC Role / Device Role / Timing Role: Field-serviceable configuration memory; accessed via isolated UART-to-UNI/O bridge during commissioning. Use Value: Block write protection prevents accidental erasure of safety-critical thresholds during routine maintenance, and –40°C to +85°C rating ensures reliability in unconditioned control cabinets. |
Use Scenario: Storing FDA-mandated audit logs, calibration timestamps, and user access permissions in portable ultrasound units. IC Role / Device Role / Timing Role: Secure parameter archive; write operations occur only during authorized service mode with WREN/WRSR sequence. Use Value: >4 kV HBM ESD rating withstands repeated handling by clinical staff, and 1M endurance supports daily log entries over 10+ years of clinical use. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 11LC010-I/MS | Same 1 Kbit density and UNI/O interface, but VCC min = 2.5V (vs. 1.8V); identical pinout and timing. | Not suitable for 1.8V systems; requires level-shifter or supply rail adjustment if interfacing with sub-2.5V MCUs. | Select 11LC010-I/MS only when system VCC ≥2.5V and legacy compatibility with older 11LC designs is required. |
| AT24C01C-SSHM-T | I²C interface (2-wire), 1 Kbit, 1.7V–5.5V supply; no UNI/O encoding; standard 8-pin SOIC package (not MSOP). | Requires two GPIOs (SCL/SDA) and external pull-ups; incompatible with UNI/O firmware stack; larger footprint. | Choose AT24C01C-SSHM-T only when migrating from existing I²C infrastructure or when host lacks Manchester decode capability. |
Compared with 11AA010-I/MS, 11LC010-I/MS offers identical functionality at higher voltage, while AT24C01C-SSHM-T trades single-wire simplicity for broader ecosystem support - neither is pin-compatible, and both require firmware and layout changes.
Availability
11AA010-I/MS is available at Aetrix Electronics and suitable for industrial control panels, medical diagnostic instruments, and smart sensor nodes requiring stable component supply with guaranteed long-term availability and RoHS-compliant packaging.
Supply support for 11AA010-I/MS 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 Inc. is a U.S.-based semiconductor company specializing in microcontrollers, analog devices, and memory products, with a focus on embedded control and connectivity solutions.
The 11AA010-I/MS belongs to Microchip's UNI/O® serial EEPROM family, designed specifically for ultra-low-pin-count, low-power embedded systems where minimizing GPIO usage and board area is critical.
FAQ
What is the minimum supply voltage required for reliable operation of the 11AA010-I/MS?
The 11AA010-I/MS operates reliably down to 1.8V across its full industrial temperature range (–40°C to +85°C). Below 2.5V, DC characteristics such as VIL are specified at 0.2×VCC, and AC timing parameters (e.g., FBUS max = 100 kHz) remain valid. This enables direct integration with 1.8V logic families without level translation circuitry.
How does the UNI/O® interface of the 11AA010-I/MS differ from standard I²C or SPI interfaces?
The 11AA010-I/MS uses Manchester encoding on a single SCIO line to embed clock and data, eliminating separate clock lines required by I²C or SPI. Unlike I²C, it has no address arbitration or multi-master support; unlike SPI, it needs no chip select. Communication is strictly master-initiated with defined start headers, ACK sequences, and standby pulses - simplifying firmware but requiring dedicated UNI/O protocol implementation.
Can the 11AA010-I/MS be used in systems requiring more than 1 Kbit of EEPROM storage?
No - the 11AA010-I/MS is fixed at 1 Kbit (128 × 8). For higher densities, Microchip offers pin-compatible family members including 11AA020-I/MS (2 Kbit), 11AA040-I/MS (4 Kbit), and 11AA080-I/MS (8 Kbit), all sharing identical UNI/O protocol, voltage range, package options, and timing specifications - enabling scalable design with minimal firmware changes.
What protection mechanisms prevent unintended writes to the 11AA010-I/MS memory array?
The 11AA010-I/MS employs three layered protections: (1) a volatile write-enable latch (WEL) that must be set via WREN command before any write; (2) nonvolatile block protection bits (BP0/BP1) allowing hardware lock of 0%, 25%, 50%, or 100% of memory; and (3) automatic WEL reset on power-on/power-down, ensuring default read-only state during supply transitions.
Is the 11AA010-I/MS compatible with the 11AA010-I/P or 11AA010-I/SN packages?
Yes - the 11AA010-I/MS shares identical electrical specifications, UNI/O timing, and functional behavior with the PDIP (P) and SOIC (SN) variants. However, the MSOP (MS) package has different thermal characteristics and PCB footprint; layout must follow Microchip's MSOP land pattern (3.0 × 3.0 mm, 0.65 mm pitch), and thermal relief for the exposed pad is recommended for optimal write-cycle reliability.
11AA010-I/MS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- EEPROM
- Technology:
- EEPROM
- Memory Size:
- 1Kbit
- Memory Organization:
- 128 x 8
- Memory Interface:
- Single Wire
- Clock Frequency:
- 100 kHz
- Write Cycle Time - Word, Page:
- 5ms
- 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-MSOP
11AA010-I/MS FAQ
1.How can I place an order for 11AA010-I/MS through Aetrix?
Please submit a Request for Quotation (RFQ) for 11AA010-I/MS 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 11AA010-I/MS reliable?
The price and inventory of 11AA010-I/MS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 11AA010-I/MS is usually 5 days.
3.What payment methods are accepted for 11AA010-I/MS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 11AA010-I/MS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 11AA010-I/MS?
11AA010-I/MS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 11AA010-I/MS 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 11AA010-I/MS?
For technical support, including 11AA010-I/MS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 11AA010-I/MS requirements.
6.How does Aetrix verify that 11AA010-I/MS is sourced from the original manufacturer or authorized distributors?
All 11AA010-I/MS 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 11AA010-I/MS meets industry standards.
7.What is the process for return or replacement of 11AA010-I/MS?
All 11AA010-I/MS units undergo pre-shipment inspection (PSI). If there is an issue with 11AA010-I/MS, 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 11AA010-I/MS part is unused and in its original packaging.
Return procedure for 11AA010-I/MS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
11AA010-I/MS Tags
-
M24C02-WMN6TP
STMicroelectronics
-
AT24C02C-XHM-T
Microchip Technology
-
AT21CS01-STUM10-T
Microchip Technology
-
AT24C02C-SSHM-T
Microchip Technology
-
24LC01BT-I/OT
Microchip Technology
-
M24C02-FMC6TG
STMicroelectronics
-
AT24CS02-SSHM-T
Microchip Technology
-
93LC46BT-I/OT
Microchip Technology
-
AT24C04C-SSHM-T
Microchip Technology
-
24LC01BT-I/SN
Microchip Technology
-
24AA02UIDT-I/OT
Microchip Technology
-
AT24C08C-STUM-T
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
