component
AT25320B-SSHL-B
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
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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Contents
README
markdownAT25320B-SSHL-B
Microchip Tech · EEPROM · SOIC-8
AT25320B-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 | The device is selected when CS is low; when CS is high, SI is not accepted and SO stays high-impedance, and CS should be pulled up to VCC with a resistor of 10 kΩ or less. |
| 2 | SO | tri_state | Serial data is shifted out on SO after the falling edge of SCK during a read, and SO is in a high-impedance state when the device is not selected. |
| 3 | WP | input | When WP is brought low and the WPEN bit is set to 1, all write operations to the STATUS register are inhibited, and WP must be driven high or low as appropriate. |
| 4 | GND | power_in | Ground reference for the power supply, to be connected to the system ground. |
| 5 | SI | input | Serial data input that receives instructions, addresses and data, which are latched on the rising edge of SCK. |
| 6 | SCK | input | Serial data clock that synchronizes communication, latching SI on the rising edge and updating SO after the falling edge. |
| 7 | HOLD | input | Pauses serial communication when driven low while SCK is low and resumes when driven high while SCK is low, and HOLD must be driven high or low as appropriate. |
| 8 | VCC | power_in | Supplies the source voltage to the device, and operation at invalid VCC voltages may produce spurious results and should not be attempted. |
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) | -40 | 85 | °C | Industrial Temperature Range | 8 | ||
| VCC Power Supply | VCC | 1.8 | 5.5 | V | Low Voltage Grade | 8 | |
| Operating temperature | -55 | 125 | °C | 8 | |||
| Storage temperature | -65 | 150 | °C | 8 | |||
| Voltage on any pin with respect to ground | -1 | 7 | V | 8 | |||
| VCC | VCC | 6.25 | V | 8 | |||
| DC output current | 5 | mA | 8 | ||||
| ESD protection | 2 | kV | 8 | ||||
| Supply Voltage | VCC1 | 1.8 | 5.5 | V | 8 | ||
| Supply Voltage | VCC2 | 2.5 | 5.5 | V | 8 | ||
| Supply Voltage | VCC3 | 4.5 | 5.5 | V | 8 | ||
| Supply Current | ICC1 | 7.5 | 10 | mA | VCC = 5.0V at 20 MHz, SO = Open, Read | 8 | |
| Supply Current | ICC2 | 4 | 10 | mA | VCC = 5.0V at 20 MHz, SO = Open, Read, Write | 8 | |
| Supply Current | ICC3 | 4 | 6 | mA | VCC = 5.0V at 5 MHz, SO = Open, Read, Write | 8 | |
| Standby Current | ISB1 | 6 | µA | VCC = 1.8V, CS = VCC | 8 | ||
| 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, TAC = 0°C to +70°C | 9 | |
| Input Low-Voltage | VIL | -0.6 | V | 9 | |||
| Output Low-Voltage | VOL1 | 0.4 | V | 3.6V ≤ VCC ≤ 5.5V IOL = 3.0 mA | 9 | ||
| Output Low-Voltage | VOL2 | 0.2 | V | 1.8V ≤ VCC ≤ 3.6V IOL = 0.15 mA | 9 | ||
| SCK Clock Frequency | fSCK | 0 | 20 | MHz | VCC = 4.5V to 5.5V | 9 | |
| SCK Clock Frequency | fSCK | 0 | 5 | MHz | VCC = 1.8V to 5.5V | 9 | |
| Input Rise Time | tRI | 2 | µs | VCC = 4.5V to 5.5V | 9 | ||
| Input Fall Time | tFI | 2 | µs | VCC = 4.5V to 5.5V | 9 | ||
| SCK High Time | tWH | 20 | ns | VCC = 4.5V 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 | 10 | ||
| SCK Low Time | tWL | 80 | ns | VCC = 1.8V to 5.5V | 10 | ||
| CS High Time | tCS | 25 | ns | VCC = 4.5V to 5.5V | 10 | ||
| CS High Time | tCS | 100 | ns | VCC = 1.8V to 5.5V | 10 | ||
| CS Setup Time | tCSS | 25 | ns | VCC = 4.5V to 5.5V | 10 | ||
| CS Setup Time | tCSS | 100 | ns | VCC = 1.8V to 5.5V | 10 | ||
| CS Hold Time | tCSH | 25 | ns | VCC = 4.5V to 5.5V | 10 | ||
| CS Hold Time | tCSH | 100 | ns | VCC = 1.8V to 5.5V | 10 | ||
| Data In Setup Time | tSU | 5 | ns | VCC = 4.5V to 5.5V | 10 | ||
| Data In Setup Time | tSU | 20 | ns | VCC = 1.8V to 5.5V | 10 | ||
| Data In Hold Time | tH | 5 | ns | VCC = 4.5V to 5.5V | 10 | ||
| Data In Hold Time | tH | 20 | ns | VCC = 1.8V to 5.5V | 10 | ||
| HOLD Setup Time | tHD | 5 | ns | VCC = 4.5V to 5.5V | 10 | ||
| HOLD Setup Time | tHD | 20 | ns | VCC = 1.8V to 5.5V | 10 | ||
| HOLD Hold Time | tCD | 5 | ns | VCC = 4.5V to 5.5V | 10 | ||
| HOLD Hold Time | tCD | 20 | ns | VCC = 1.8V to 5.5V | 10 | ||
| Output Valid | tV | 0 | 20 | ns | VCC = 4.5V to 5.5V | 10 | |
| Output Valid | tV | 0 | 80 | ns | VCC = 1.8V to 5.5V | 10 | |
| Output Hold Time | tHO | 0 | ns | VCC = 4.5V to 5.5V | 10 | ||
| Output Hold Time | tHO | 0 | ns | VCC = 1.8V to 5.5V | 11 | ||
| HOLD to Output Low Z | tLZ | 0 | 25 | ns | VCC = 4.5V to 5.5V | 11 | |
| HOLD to Output Low Z | tLZ | 0 | 100 | ns | VCC = 1.8V to 5.5V | 11 | |
| HOLD to Output High Z | tHZ | 40 | ns | VCC = 4.5V to 5.5V | 11 | ||
| HOLD to Output High Z | tHZ | 200 | ns | VCC = 1.8V to 5.5V | 11 | ||
| Output Disable Time | tDIS | 40 | ns | VCC = 4.5V to 5.5V | 11 | ||
| Output Disable Time | tDIS | 200 | ns | VCC = 1.8V to 5.5V | 11 | ||
| Write Cycle Time | tWC | 5 | ms | VCC = 4.5V to 5.5V | 11 | ||
| Output Capacitance (SO) | COUT | 8 | pF | VOUT = 0V | 12 | ||
| Input Capacitance (CS, SCK, SI, WP, HOLD) | CIN | 6 | pF | VIN = 0V | 12 | ||
| Write Endurance | 1e+06 | write cycles | TA = 25°C, VCC = 3.3V, Page Mode | 12 | |||
| Data Retention | 100 | years | TA = 55°C | 12 |
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. | 21 |
CAD (KiCad official)
- Symbol:
AT25320B-SSHL-B - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
at25320b-sshl-b-etched.step/at25320b-sshl-b-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);at25320b-sshl-b.step/at25320b-sshl-b.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Microchip Tech datasheet (36 pp, sha256
d4cf1c58de616504, retrieved 2026-10-18, tier: lcsc) - 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).