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Contents

README

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AT25160B-SSHL-B

Microchip Tech · EEPROM · SOIC-8

AT25160B-SSHL-B 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 is active low: the device is selected when CS is low, SO stays high-impedance when unselected, and CS should be pulled up to VCC with a resistor of 10 kΩ or less.
2 SO output Serial Data Output shifts data out after the falling edge of SCK during a read and remains high-impedance when the device is not selected.
3 WP input Write-Protect blocks STATUS register writes when driven low while WPEN is 1, and its function is disabled when WPEN is 0.
4 GND power_in Ground is the reference for the device power supply VCC and should be connected to system ground.
5 SI input Serial Data Input receives opcodes, addresses and data, latched on the rising edge of SCK.
6 SCK input Serial Data Clock synchronizes communication, with SI latched on the rising edge and SO clocked out on the falling edge.
7 HOLD input Suspend Serial Input pauses serial communication when driven low while SCK is low, with SI ignored and SO high-impedance during hold.
8 VCC power_in Device Power Supply supplies the source voltage, and operation at invalid VCC voltages may produce spurious results; the device operates from 1.8V to 5.5V.

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
Operating Temperature (Case) Industrial Temperature Range -40 85 °C 9
VCC Power Supply Low-Voltage Grade VCC 1.8 5.5 V 9
Operating Temperature -55 125 °C 9
Storage temperature -65 150 °C 9
Voltage on any pin with respect to ground -1 7 V 9
VCC VCC 6.25 V 9
DC output current 5 mA 9
Supply Voltage VCC1 1.8 5.5 V 9
Supply Voltage VCC2 2.5 5.5 V 9
Supply Voltage VCC3 4.5 5.5 V 9
Supply Current ICC1 7.5 10 mA VCC = 5.0V at 20 MHz, SO = Open, Read 9
Supply Current ICC2 4 10 mA VCC = 5.0V at 20 MHz, SO = Open, Read, Write 9
Supply Current ICC3 4 6 mA VCC = 5.0V at 5 MHz, SO = Open, Read, Write 9
Standby Current ISB1 6 µA VCC = 1.8V, CS = VCC 9
Standby Current ISB2 0.3 7 µA VCC = 2.5V, CS = VCC 9
Standby Current ISB3 2 10 µA VCC = 5.0V, CS = VCC 9
Input Leakage IIL -3 3 µA VIN = 0V to VCC 9
Output Leakage IOL -3 3 µA VIN = 0V to VCC, TA = 0°C to +70°C 10
Input Low-Voltage VIL -0.6 V 10
Output Low-Voltage VOL1 0.4 V 3.6V ≤ VCC ≤ 5.5V IOL = 3.0 mA 10
Output Low-Voltage VOL2 0.2 V 1.8V ≤ VCC ≤ 3.6V IOL = 0.15 mA 10
SCK Clock Frequency fSCK 0 20 MHz VCC = 4.5V to 5.5V 10
SCK Clock Frequency fSCK 0 10 MHz VCC = 2.5V to 5.5V 10
SCK Clock Frequency fSCK 0 5 MHz VCC = 1.8V to 5.5V 10
SCK High Time tWH 20 ns VCC = 4.5V to 5.5V 10
SCK High Time tWH 40 ns VCC = 2.5V to 5.5V 10
SCK High Time tWH 80 ns VCC = 1.8V to 5.5V 10
SCK Low Time tWL 20 ns VCC = 4.5V to 5.5V 11
SCK Low Time tWL 40 ns VCC = 2.5V to 5.5V 11
SCK Low Time tWL 80 ns VCC = 1.8V to 5.5V 11
CS High Time tCS 25 ns VCC = 4.5V to 5.5V 11
CS High Time tCS 50 ns VCC = 2.5V to 5.5V 11
CS High Time tCS 100 ns VCC = 1.8V to 5.5V 11
CS Setup Time tCSS 25 ns VCC = 4.5V to 5.5V 11
CS Setup Time tCSS 50 ns VCC = 2.5V to 5.5V 11
CS Setup Time tCSS 100 ns VCC = 1.8V to 5.5V 11
CS Hold Time tCSH 25 ns VCC = 4.5V to 5.5V 11
CS Hold Time tCSH 50 ns VCC = 2.5V to 5.5V 11
CS Hold Time tCSH 100 ns VCC = 1.8V to 5.5V 11
Data In Setup Time tSU 5 ns VCC = 4.5V to 5.5V 11
Data In Setup Time tSU 10 ns VCC = 2.5V to 5.5V 11
Data In Setup Time tSU 20 ns VCC = 1.8V to 5.5V 11
Data In Hold Time tH 5 ns VCC = 4.5V to 5.5V 11
Data In Hold Time tH 10 ns VCC = 2.5V to 5.5V 11
Data In Hold Time tH 20 ns VCC = 1.8V to 5.5V 11
Output Valid tV 0 20 ns VCC = 4.5V to 5.5V 11
Output Valid tV 0 40 ns VCC = 2.5V to 5.5V 11
Output Valid tV 0 80 ns VCC = 1.8V to 5.5V 11
Write Cycle Time tWC 5 ms VCC = 4.5V to 5.5V 12
Power-up time required after VCC is stable before the device can accept instructions tPUP 100 µs 13
Power-on Reset Threshold Voltage VPOR 1.5 V 13
Minimum time at VCC = 0V between power cycles tPOFF 0.03 ms 13
Write Endurance 1e+06 Write Cycles TA = 25°C, VCC = 3.3V, Page Write mode 13
Data Retention 100 Years TA = 55°C 13

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. 27

CAD (KiCad official)

  • Symbol: AT25160B-SSHL-B
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: at25160b-sshl-b-etched.step / at25160b-sshl-b-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); at25160b-sshl-b.step / at25160b-sshl-b.glb are the bare package body.

Provenance

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

  • Datasheet: Microchip Tech datasheet (42 pp, sha256 e949a942c20d62e7, retrieved 2026-10-28, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-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