component
93AA66CT-I
Public Made by Adomby adom
Microchip Tech EEPROM, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Contents
README
markdown93AA66CT-I
Microchip Tech · EEPROM · SOIC-8
93AA66CT-I from Microchip Tech, in a SOIC-8. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | CS | input | Chip select: a high level selects the device and a low level deselects it into Standby mode, and CS must be low for 250 ns minimum (TCSL) between consecutive instructions. |
| 2 | CLK | input | Serial clock: opcodes, address and data bits are clocked in on the positive edge of CLK, and data bits are also clocked out on the positive edge of CLK. |
| 3 | DI | input | Serial data input used to clock in the Start bit, opcode, address and data synchronously with the CLK input. |
| 4 | DO | output | Serial data output used in Read mode to output data synchronously with CLK (TPD after the positive edge of CLK), also providing Ready/Busy status during erase and write cycles. |
| 5 | VSS | power_in | Ground reference for the device. |
| 6 | ORG | input | Memory organization select on the 93XX66C: tied to VCC/logic high selects x16 organization and tied to VSS/logic low selects x8, and it must be tied to a valid logic level. |
| 7 | NC | unconnected | No internal connection. |
| 8 | VCC | power_in | Power supply; the 93AA66C operates from 1.8V to 5.5V per the device selection table. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Microchip Tech |
| Package | SOIC-8 |
| Category | Memory |
| Pins | 8 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Supply voltage absolute maximum | VCC | 7 | V | 3 | |||
| Storage temperature | -65 | 150 | °C | 3 | |||
| Ambient temperature with power applied | -40 | 125 | °C | 3 | |||
| All inputs and outputs w.r.t. VSS | -0.6 | V | VCC +1.0V upper bound not numeric | 3 | |||
| Supply voltage operating range | VCC | 1.8 | 5.5 | V | Industrial (I) | 3 | |
| Ambient temperature operating range | TA | -40 | 85 | °C | Industrial (I) | 3 | |
| High-level Input Voltage | VIH1 | 2 | V | VCC ≥ 2.7V; max printed as VCC +1 V | 3 | ||
| Low-level Input Voltage | VIL1 | -0.3 | 0.8 | V | VCC ≥ 2.7V | 3 | |
| Low-level Input Voltage | VIL2 | -0.3 | V | VCC < 2.7V; max printed as 0.2 VCC | 3 | ||
| Low-level Output Voltage | VOL1 | 0.4 | V | IOL = 2.1 mA, VCC = 4.5V | 3 | ||
| Low-level Output Voltage | VOL2 | 0.2 | V | IOL = 100 µA, VCC = 2.5V | 3 | ||
| High-level Output Voltage | VOH1 | 2.4 | V | IOH = -400 µA, VCC = 4.5V | 3 | ||
| Input Leakage Current | ILI | -1 | 1 | µA | VIN = VSS or VCC | 3 | |
| Output Leakage Current | ILO | -1 | 1 | µA | VOUT = VSS or VCC | 3 | |
| Pin Capacitance (all inputs/outputs) | CIN | 7 | pF | VIN/VOUT = 0V (Note 1) | 3 | ||
| Write Current | ICC write | 2 | mA | FCLK = 3 MHz, Vcc = 5.5V | 3 | ||
| Read Current | ICC read | 1 | mA | FCLK = 3 MHz, VCC = 5.5V | 3 | ||
| Read Current | ICC read | 500 | µA | FCLK = 2 MHz, VCC = 3.0V | 3 | ||
| Standby Current | ICCS | 1 | µA | I-Temp, CS = 0V, ORG = DI = CLK = VSS or VCC (Note 2) (Note 3) | 3 | ||
| Clock Frequency | FCLK | 3 | MHz | 4.5V ≤ VCC < 5.5V, 93XX66C only | 4 | ||
| Clock Frequency | FCLK | 2 | MHz | 2.5V ≤ VCC < 5.5V | 4 | ||
| Clock Frequency | FCLK | 1 | MHz | 1.8V ≤ VCC < 2.5V | 4 | ||
| Clock High Time | TCKH | 200 | ns | 4.5V ≤ VCC < 5.5V, 93XX66C only | 4 | ||
| Clock High Time | TCKH | 250 | ns | 2.5V ≤ VCC < 5.5V | 4 | ||
| Clock High Time | TCKH | 450 | ns | 1.8V ≤ VCC < 2.5V | 4 | ||
| Clock Low Time | TCKL | 100 | ns | 4.5V ≤ VCC < 5.5V, 93XX66C only | 4 | ||
| Clock Low Time | TCKL | 200 | ns | 2.5V ≤ VCC < 5.5V | 4 | ||
| Clock Low Time | TCKL | 450 | ns | 1.8V ≤ VCC < 2.5V | 4 | ||
| Chip Select Setup Time | TCSS | 50 | ns | 4.5V ≤ VCC < 5.5V | 4 | ||
| Chip Select Setup Time | TCSS | 100 | ns | 2.5V ≤ VCC < 4.5V | 4 | ||
| Chip Select Setup Time | TCSS | 250 | ns | 1.8V ≤ VCC < 2.5V | 4 | ||
| Chip Select Hold Time | TCSH | 0 | ns | 1.8V ≤ VCC < 5.5V | 4 | ||
| Chip Select Low Time | TCSL | 250 | ns | 1.8V ≤ VCC < 5.5V | 4 | ||
| Data Input Setup Time | TDIS | 50 | ns | 4.5V ≤ VCC < 5.5V, 93XX66C only | 4 | ||
| Data Input Setup Time | TDIS | 100 | ns | 2.5V ≤ VCC < 5.5V | 4 | ||
| Data Input Setup Time | TDIS | 250 | ns | 1.8V ≤ VCC < 2.5V | 4 | ||
| Data Input Hold Time | TDIH | 50 | ns | 4.5V ≤ VCC < 5.5V, 93XX66C only | 4 | ||
| Data Input Hold Time | TDIH | 100 | ns | 2.5V ≤ VCC < 5.5V | 4 | ||
| Data Input Hold Time | TDIH | 250 | ns | 1.8V ≤ VCC < 2.5V | 4 | ||
| Data Output Delay Time | TPD | 200 | ns | 4.5V ≤ VCC < 5.5V, CL = 100 pF | 4 | ||
| Data Output Delay Time | TPD | 250 | ns | 2.5V ≤ VCC < 4.5V, CL = 100 pF | 4 | ||
| Data Output Delay Time | TPD | 400 | ns | 1.8V ≤ VCC < 2.5V, CL = 100 pF | 4 | ||
| Data Output Disable Time | TCZ | 100 | ns | 4.5V ≤ VCC < 5.5V, (Note 1) | 4 | ||
| Data Output Disable Time | TCZ | 200 | ns | 1.8V ≤ VCC < 4.5V, (Note 1) | 4 | ||
| Status Valid Time | TSV | 200 | ns | 4.5V ≤ VCC < 5.5V, CL = 100 pF | 4 | ||
| Status Valid Time | TSV | 300 | ns | 2.5V ≤ VCC < 4.5V, CL = 100 pF | 4 | ||
| Status Valid Time | TSV | 500 | ns | 1.8V ≤ VCC < 2.5V, CL = 100 pF | 4 | ||
| Program Cycle Time | TWC | 6 | ms | Erase/Write mode (AA and LC versions) | 5 | ||
| Erase All Cycle Time | TEC | 6 | ms | ERAL mode, 4.5V VCC 5.5V | 5 | ||
| Write All Cycle Time | TWL | 15 | ms | WRAL mode, 4.5V VCC 5.5V | 5 | ||
| Endurance | 1 | M cycles | +25°C, VCC = 5.0V (Note 2) | 5 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | tin | Part Number VCC Range ORG Pin Word Size Temperature Ranges Packages 93AA66A 1.8V-5.5V No 8-bit I MC, MS, P, SN, OT, MN,ST | 1 |
CAD (KiCad official)
- Symbol:
93AA66CT-I - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
93aa66ct-i-etched.step/93aa66ct-i-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);93aa66ct-i.step/93aa66ct-i.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Microchip Tech datasheet (43 pp, sha256
04494d6624e9f111, retrieved 2026-10-28, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).