AT93C86A-10SU-2.7 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; the device is selected when CS is high, otherwise DI data is not accepted and DO stays high-impedance.
2	SK	input	Serial Data Clock; synchronizes communication, with DI latched and DO clocked out on the rising edge of SK.
3	DI	input	Serial Data Input; receives instructions, addresses and data, latched on the rising edge of SK.
4	DO	tri_state	Serial Data Output; shifts data out after the rising edge of SK during reads, outputs Ready/Busy status after an erase or write, and is high-impedance when the device is not selected.
5	GND	power_in	Ground reference for the power supply, to be connected to system ground.
6	ORG	input	Internal Organization select; tied to VCC selects x16, tied to VSS selects x8, and left unconnected selects x16 via the internal pull-up resistor.
7	NC	unconnected	No Connect.
8	VCC	power_in	Device Power Supply; 2.7V to 5.5V for the -2.7 option, and operation at invalid VCC voltages may produce spurious results.

Key specifications

Parameter	Value
Manufacturer	Microchip Tech
Package	SOIC-8
Category	Interface ICs
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 (2.7V option)	VCC2	2.7		5.5	V		8
Supply Current Read	ICC1		0.5	2	mA	VCC = 5.0V, Read at 1 MHz	8
Supply Current Write	ICC2		0.5	2	mA	VCC = 5.0V, Write at 1 MHz	8
Standby Current (2.7V Option)	ISB2		6	10	μA	VCC = 2.7V, CS = 0V	8
Input Leakage Current	IIL		0.1	3	μA	VIN = 0 to VCC	8
Output Leakage Current	ILO		0.1	3	μA	VIN = 0 to VCC	8
Input Low-Voltage	VIL1	-0.6		0.8	V	2.7V ≤ VCC ≤ 5.5V (Note 2)	9
Input High-Voltage	VIH1	2			V	2.7V ≤ VCC ≤ 5.5V (Note 2); max VCC + 1	9
Output Low-Voltage	VOL1			0.4	V	2.7V ≤ VCC ≤ 5.5V, IOL = 2.1 mA	9
Output High-Voltage	VOH1	2.4			V	2.7V ≤ VCC ≤ 5.5V, IOH = -0.4 mA	9
Clock Frequency, SK	fSK	0		1	MHz	2.7V ≤ VCC ≤ 5.5V	9
Clock Frequency, SK	fSK	0		2	MHz	4.5V ≤ VCC ≤ 5.5V	9
High Time, SK	tSKH	250			ns	2.7V ≤ VCC ≤ 5.5V	9
Low Time, SK	tSKL	250			ns	2.7V ≤ VCC ≤ 5.5V	9
Minimum CS Low Time	tCS	250			ns	2.7V ≤ VCC ≤ 5.5V	9
CS Setup Time	tCSS	50			ns	2.7V ≤ VCC ≤ 5.5V, Relative to SK	9
DI Setup Time	tDIS	100			ns	2.7V ≤ VCC ≤ 5.5V, Relative to SK	9
CS Hold Time	tCSH	0			ns	Relative to SK	9
DI Hold Time	tDIH	100			ns	2.7V ≤ VCC ≤ 5.5V, Relative to SK	10
Output Delay to 1	tPD1			250	ns	2.7V ≤ VCC ≤ 5.5V	10
Output Delay to 0	tPD0			250	ns	2.7V ≤ VCC ≤ 5.5V	10
CS to Status Valid	tSV			250	ns	2.7V ≤ VCC ≤ 5.5V	10
CS to DO in High-impedance	tDF			150	ns	2.7V ≤ VCC ≤ 5.5V, CS = VIL	10
Write Cycle Time	tWP	0.1	3	10	ms	1.8V ≤ VCC ≤ 5.5V	10
Time required after VCC is stable before device accepts commands	tPUP	100			µs		11
Power-on Reset Threshold Voltage	VPOR			1.5	V		11
Minimum time at VCC = 0V between power cycles	tPOFF	500			ms		11
Output Capacitance (DO)	COUT			5	pF	VOUT = 0V	11
Input Capacitance (CS, SK, DI, ORG)	CIN			5	pF	VIN = 0V	11
Write Endurance		1e+06			Write Cycles	TA = 25°C, VCC = 5.0V	11
Data Retention		100			Years	TA = 55°C	11
Operating Temperature (Case)		-40		85	°C	Industrial Temperature Range	8
Temperature under bias		-55		125	°C		8
Storage temperature		-65		150	°C		8
VCC	VCC			6.25	V		8
Voltage on any pin with respect to ground		-1		7	V		8
DC output current				5	mA		8
ESD protection				2	kV		8

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	8-Lead Plastic Small Outline (SN) - Narrow, 3.90 mm (.150 In.) Body [SOIC] © 2017 Microchip Technology Inc.	18

CAD (KiCad official)

Symbol: AT93C86A-10SU-2.7
Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
3D model: SOIC-8 (KiCad packages3D, STEP)
3D model files: at93c86a-10su-2-7-etched.step / at93c86a-10su-2-7-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); at93c86a-10su-2-7.step / at93c86a-10su-2-7.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

Datasheet: Microchip Tech datasheet (33 pp, sha256 7f248e18416705c4, retrieved 2026-10-31, tier: manufacturer)
Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text), consensus claude-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).

Datasheet PDF

AT93C86A-10SU-2.7

Verified AT93C86A-10SU-2.7

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3D Model

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Schematic Symbol

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Datasheet

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