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93AA86CT-I/SN
Microchip Technology
IC EEPROM 16KBIT MICROWIRE 8SOIC
1599 Pcs New Original In Stock
EEPROM Memory IC 16Kbit Microwire 3 MHz 8-SOIC
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5.0 / 5.0
- (186 Ratings)
93AA86CT-I/SN
Product Overview
1405147
DiGi Electronics Part Number
93AA86CT-I/SN-DGManufacturer
Microchip Technology
93AA86CT-I/SN
Description
IC EEPROM 16KBIT MICROWIRE 8SOICInventory
1599 Pcs New Original In Stock
EEPROM Memory IC 16Kbit Microwire 3 MHz 8-SOIC
Quantity
Minimum 1
Minimum 1
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93AA86CT-I/SN Technical Specifications
Category
Memory, Memory
Packaging
Tape & Reel (TR)
Series
-
Product Status
Active
DiGi-Electronics 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
Microwire
Clock Frequency
3 MHz
Write Cycle Time - Word, Page
5ms
Voltage - Supply
1.8V ~ 5.5V
Operating Temperature
-40°C ~ 85°C (TA)
Mounting Type
Surface Mount
Package / Case
8-SOIC (0.154", 3.90mm Width)
Supplier Device Package
8-SOIC
Base Product Number
93AA86
Datasheet & Documents
HTML Datasheet
93AA86CT-I/SN-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8542.32.0051
Additional Information
Other Names
93AA86CT-I/SN-NDR
150-93AA86CT-I/SNCT
150-93AA86CT-I/SNTR
150-93AA86CT-I/SNDKR
93AA86CT-I/SN-DG
Standard Package
3,300
Alternative Parts
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MANUFACTURER
QUANTITY AVAILABLE
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Reviews
5.0/5.0-(Show up to 5 Ratings)
Dec 02, 2025
DiGi Electronics的物流速度非常快，幾乎是隔天就能收到商品，滿足我的緊急需求。
Dec 02, 2025
ちゃらんぽらんな配送ではなく、徹底した梱包と追跡追求に感心します。
Dec 02, 2025
The professionalism of their staff makes working with them very smooth.
Dec 02, 2025
The after-sales team demonstrates genuine professionalism.
Dec 02, 2025
DiGi Electronics ships fast and supports customers promptly, which I highly appreciate.
Dec 02, 2025
Their quick turnaround on support inquiries leaves a positive impression.
Dec 02, 2025
Their support team’s meticulous approach ensures that any problem is fully resolved, preventing recurrence.
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Frequently Asked Questions (FAQ)
Can I drop-in replace a 93AA86CT-I/SN with a 93AA86C-I/SN in a 1.8 V Microwire bus if my firmware issues sequential read commands across 2K x 8 boundaries, and what hidden timing risk should I verify?
No, the 93AA86CT-I/SN is a “T” process variant with tighter 5 ms max page-write settling and slightly different Sequential Read wrap-around logic inside the 2K x 8 array. At 1.8 V the 93AA86C-I/SN can stretch tCLKH/tCLKL by up to 150 ns, causing the host MCU to miss the dummy bit that starts the next 16-byte page and returning garbage 0xFFs. Mitigation: after any Write or Write-Enable command, poll DO until it goes high (ready), wait an extra 5 ms at 85 °C, and re-issue the READ opcode with a fresh 16-bit address. If cycle time is critical, stay with the 93AA86CT-I/SN or switch to AT93C86A-10SU-1.8 which keeps the same sequential-read timing down to 1.7 V.
I’m migrating from SPI NOR 25LC256 to 93AA86CT-I/SN to save pins—how do I estimate the real-world throughput hit when storing 256-byte sensor logs every 100 ms over Microwire at 3 MHz?
Microwire on 93AA86CT-I/SN is half-duplex with 1 bit per clock and mandatory 16-bit command overhead, while 25LC256 SPI is full-duplex and can page-program 64 bytes in 5 ms. For 256 bytes you need 16 consecutive 16-byte page writes: 16 × (16 × 1 µs + 5 ms) = 80.2 ms, eating 80 % of your 100 ms window. Reduce the log length to 128 bytes or buffer two records in MCU RAM and background-write every 200 ms. Add a 10 kΩ pull-up on CS to avoid false deselect when the sensor task is pre-empted by a higher-priority ISR.
What is the worst-case EEPROM wear-out of 93AA86CT-I/SN if my BLE module writes a 4-byte status structure every connection interval (7.5 ms) at 25 °C, and which competitor part gives 10× endurance without filesystem redesign?
At 1 M writes/year the 93AA86CT-I/SN 1K endurance spec is exhausted in 10 months. The part lacks internal wear-leveling, so rotating the 4-byte field across the 2K array extends life to only 5.5 years. Upgrade to Microchip 25AA02E48 (2 Kbit, SPI, 1 M cycles) or use an FRAM MB85RC16V (5 V, 10¹² cycles) with the same 8-SOIC footprint but add a 0.1 µF cap near VCC because FRAM draws 8 mA peak on write—three times the 93AA86CT-I/SN.
My 93AA86CT-I/SN shares the Microwire bus with a 5 V-powered MCP41HV51 digital potentiometer—will the 1.8 V minimum EEPROM tolerate level-translated 5 V signals, and what inexpensive discrete circuit prevents data corruption?
No, 93AA86CT-I/SN inputs are not 5 V-tolerant; exceeding VCC+0.5 V triggers the ESD clamp and can corrupt the ongoing write cycle. Use a 74LVC2T45 dual-supply translator: set its VCCA=1.8 V from the same LDO as the EEPROM and VCCB=5 V. Add a 330 Ω series resistor on every Microwire line (CS, SK, DI, DO) to limit fault current if the translator powers down first. During layout keep the trace length between translator and 93AA86CT-I/SN <20 mm to hold SK rise time under 10 ns at 3 MHz and avoid double-clocking.
When soldering 93AA86CT-I/SN with MSL-1 rating on a 12-layer HDI board using lead-free SAC305 paste, can I skip the 24-hour bake recommended for 0.125 mm thick packages, and what post-assembly EEPROM test catches latent interface defects?
MSL-1 allows skipping the pre-bake, but on >8-layer boards moisture trapped in micro-vias can still create the “pop-corning” signature that opens bond wires inside 93AA86CT-I/SN. Do a 125 °C 2 h dry-bake if the parts sat >24 h outside moisture barrier. After reflow, run a Microwire “Write & Verify” of the first and last 16-byte page at 1.8 V (worst-case) and read-back at 5.5 V; any marginal CLK or DO pad will show bit-errors at temperature extremes. Log the fail bit position—if it clusters on DO7, suspect cold-solder on pin 6 (DO) rather than the die itself.
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DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
93AA86CT-I/SN CAD Models
Microchip Technology 93AA86CT-I/SN PCB symbols & footprints
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