component
AT25020B-SSHL-T
Public Made by Adomby adom
Microchip Tech EEPROM, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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AT25020B-SSHL-T
Microchip Tech · EEPROM · SOIC-8
AT25020B-SSHL-T 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 low, and when it is not selected SI is ignored and SO stays high-impedance; a pull-up of 10 kΩ or less to VCC is recommended, and CS must be low before any sequence starts after power-up. |
| 2 | SO | tri_state | Serial Data Output: data is shifted out after the falling edge of SCK during a read, and the pin is high-impedance when the device is not selected. |
| 3 | WP | input | Write-Protect: when driven low all write operations are inhibited (and a write in progress is interrupted if WP goes low while CS is low), and it must be driven high or low as appropriate. |
| 4 | GND | power_in | Ground: the ground reference for the device power supply VCC, to be connected to system ground. |
| 5 | SI | input | Serial Data Input: receives instructions, 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 of SCK. |
| 7 | HOLD | input | Suspend Serial Input: when CS is low, pulling HOLD low while SCK is low pauses serial communication without resetting the sequence, and it must be driven high or low as appropriate. |
| 8 | VCC | power_in | Device Power Supply: supplies the device at 1.8 V to 5.5 V, 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 | -40 | 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 | ||||
| Operating Temperature (Case) Industrial Temperature Range | -40 | 85 | °C | 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 | 8.5 | 10 | mA | VCC = 5.0V at 20 MHz, SO = Open, Read | 9 | |
| Supply Current | ICC2 | 4.5 | 5 | mA | VCC = 5.0V at 10 MHz, SO = Open, Read, Write | 9 | |
| Supply Current | ICC3 | 2 | 3 | mA | VCC = 5.0V at 1 MHz, SO = Open, Read, Write | 9 | |
| Standby Current | ISB1 | 0.1 | 0.5 | µA | VCC = 1.8V, CS = VCC | 9 | |
| Standby Current | ISB2 | 0.2 | 1 | µA | VCC = 2.5V, CS = VCC | 9 | |
| Standby Current | ISB3 | 2 | 3.5 | 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 | |
| Input Rise Time | tRI | 2000 | ns | VCC = 1.8V to 5.5V | 10 | ||
| Input Fall Time | tFI | 2000 | ns | 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 | 10 | ||
| SCK Low Time | tWL | 40 | ns | VCC = 2.5V to 5.5V | 10 | ||
| SCK Low Time | tWL | 80 | ns | VCC = 1.8V to 5.5V | 10 | ||
| CS High Time | tCS | 100 | ns | VCC = 4.5V to 5.5V | 10 | ||
| CS High Time | tCS | 200 | ns | VCC = 1.8V to 5.5V | 10 | ||
| CS Setup Time | tCSS | 100 | ns | VCC = 4.5V to 5.5V | 11 | ||
| CS Setup Time | tCSS | 200 | ns | VCC = 1.8V to 5.5V | 11 | ||
| CS Hold Time | tCSH | 100 | ns | VCC = 4.5V to 5.5V | 11 | ||
| CS Hold Time | tCSH | 200 | ns | VCC = 1.8V to 5.5V | 11 | ||
| Data In Setup Time | tSU | 20 | ns | VCC = 4.5V to 5.5V | 11 | ||
| Data In Setup Time | tSU | 40 | ns | VCC = 2.5V to 5.5V | 11 | ||
| Data In Setup Time | tSU | 80 | ns | VCC = 1.8V to 5.5V | 11 | ||
| Data In Hold Time | tH | 20 | ns | VCC = 4.5V to 5.5V | 11 | ||
| Data In Hold Time | tH | 40 | ns | VCC = 2.5V to 5.5V | 11 | ||
| Data In Hold Time | tH | 80 | ns | VCC = 1.8V to 5.5V | 11 | ||
| HOLD Setup Time | tHD | 20 | ns | VCC = 4.5V to 5.5V | 11 | ||
| HOLD Setup Time | tHD | 40 | ns | VCC = 2.5V to 5.5V | 11 | ||
| HOLD Setup Time | tHD | 80 | ns | VCC = 1.8V to 5.5V | 11 | ||
| HOLD Hold Time | tCD | 20 | ns | VCC = 4.5V to 5.5V | 11 | ||
| HOLD Hold Time | tCD | 40 | ns | VCC = 2.5V to 5.5V | 11 | ||
| HOLD Hold Time | tCD | 80 | 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 = 1.8V to 5.5V | 11 | ||
| Output Capacitance (SO) | COUT | 8 | pF | VOUT = 0V | 13 | ||
| Input Capacitance (CS, SCK, SI, WP, HOLD) | CIN | 6 | pF | VIN = 0V | 13 | ||
| Time required after VCC is stable before the device can accept instructions | tPUP | 100 | µs | 12 | |||
| Power-on Reset Threshold Voltage | VPOR | 1.5 | V | 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. | 25 |
CAD (KiCad official)
- Symbol:
AT25020B-SSHL-T - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
at25020b-sshl-t-etched.step/at25020b-sshl-t-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);at25020b-sshl-t.step/at25020b-sshl-t.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Microchip Tech datasheet (39 pp, sha256
469ed3723f5a845f, retrieved 2026-10-17, 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).
# AT25020B-SSHL-T
**Microchip Tech** · EEPROM · SOIC-8
AT25020B-SSHL-T 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 low, and when it is not selected SI is ignored and SO stays high-impedance; a pull-up of 10 kΩ or less to VCC is recommended, and CS must be low before any sequence starts after power-up. |
| 2 | SO | tri_state | Serial Data Output: data is shifted out after the falling edge of SCK during a read, and the pin is high-impedance when the device is not selected. |
| 3 | WP | input | Write-Protect: when driven low all write operations are inhibited (and a write in progress is interrupted if WP goes low while CS is low), and it must be driven high or low as appropriate. |
| 4 | GND | power_in | Ground: the ground reference for the device power supply VCC, to be connected to system ground. |
| 5 | SI | input | Serial Data Input: receives instructions, 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 of SCK. |
| 7 | HOLD | input | Suspend Serial Input: when CS is low, pulling HOLD low while SCK is low pauses serial communication without resetting the sequence, and it must be driven high or low as appropriate. |
| 8 | VCC | power_in | Device Power Supply: supplies the device at 1.8 V to 5.5 V, 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 | | -40 | | 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 |
| Operating Temperature (Case) Industrial Temperature Range | | -40 | | 85 | °C | | 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 | | 8.5 | 10 | mA | VCC = 5.0V at 20 MHz, SO = Open, Read | 9 |
| Supply Current | ICC2 | | 4.5 | 5 | mA | VCC = 5.0V at 10 MHz, SO = Open, Read, Write | 9 |
| Supply Current | ICC3 | | 2 | 3 | mA | VCC = 5.0V at 1 MHz, SO = Open, Read, Write | 9 |
| Standby Current | ISB1 | | 0.1 | 0.5 | µA | VCC = 1.8V, CS = VCC | 9 |
| Standby Current | ISB2 | | 0.2 | 1 | µA | VCC = 2.5V, CS = VCC | 9 |
| Standby Current | ISB3 | | 2 | 3.5 | 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 |
| Input Rise Time | tRI | | | 2000 | ns | VCC = 1.8V to 5.5V | 10 |
| Input Fall Time | tFI | | | 2000 | ns | 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 | 10 |
| SCK Low Time | tWL | 40 | | | ns | VCC = 2.5V to 5.5V | 10 |
| SCK Low Time | tWL | 80 | | | ns | VCC = 1.8V to 5.5V | 10 |
| CS High Time | tCS | 100 | | | ns | VCC = 4.5V to 5.5V | 10 |
| CS High Time | tCS | 200 | | | ns | VCC = 1.8V to 5.5V | 10 |
| CS Setup Time | tCSS | 100 | | | ns | VCC = 4.5V to 5.5V | 11 |
| CS Setup Time | tCSS | 200 | | | ns | VCC = 1.8V to 5.5V | 11 |
| CS Hold Time | tCSH | 100 | | | ns | VCC = 4.5V to 5.5V | 11 |
| CS Hold Time | tCSH | 200 | | | ns | VCC = 1.8V to 5.5V | 11 |
| Data In Setup Time | tSU | 20 | | | ns | VCC = 4.5V to 5.5V | 11 |
| Data In Setup Time | tSU | 40 | | | ns | VCC = 2.5V to 5.5V | 11 |
| Data In Setup Time | tSU | 80 | | | ns | VCC = 1.8V to 5.5V | 11 |
| Data In Hold Time | tH | 20 | | | ns | VCC = 4.5V to 5.5V | 11 |
| Data In Hold Time | tH | 40 | | | ns | VCC = 2.5V to 5.5V | 11 |
| Data In Hold Time | tH | 80 | | | ns | VCC = 1.8V to 5.5V | 11 |
| HOLD Setup Time | tHD | 20 | | | ns | VCC = 4.5V to 5.5V | 11 |
| HOLD Setup Time | tHD | 40 | | | ns | VCC = 2.5V to 5.5V | 11 |
| HOLD Setup Time | tHD | 80 | | | ns | VCC = 1.8V to 5.5V | 11 |
| HOLD Hold Time | tCD | 20 | | | ns | VCC = 4.5V to 5.5V | 11 |
| HOLD Hold Time | tCD | 40 | | | ns | VCC = 2.5V to 5.5V | 11 |
| HOLD Hold Time | tCD | 80 | | | 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 = 1.8V to 5.5V | 11 |
| Output Capacitance (SO) | COUT | | | 8 | pF | VOUT = 0V | 13 |
| Input Capacitance (CS, SCK, SI, WP, HOLD) | CIN | | | 6 | pF | VIN = 0V | 13 |
| Time required after VCC is stable before the device can accept instructions | tPUP | 100 | | | µs | | 12 |
| Power-on Reset Threshold Voltage | VPOR | | | 1.5 | V | | 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. | 25 |
## CAD (KiCad official)
- Symbol: `AT25020B-SSHL-T`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `at25020b-sshl-t-etched.step` / `at25020b-sshl-t-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `at25020b-sshl-t.step` / `at25020b-sshl-t.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Microchip Tech datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588901647464468480) (39 pp, sha256 `469ed3723f5a845f`, retrieved 2026-10-17, tier: lcsc)
- **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](docs/at25020b-sshl-t-datasheet.pdf)