component
DS2408S+T&R
Public Made by Adomby adom
Analog Devices Inc Maxim Integrated I/O Expanders, SO-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Generated by kicad-footprint-generator · KiCad file format 20260206
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DS2408S+T&R
Analog Devices Inc Maxim Integrated · I/O Expanders · SO-16
DS2408S+T&R from Analog Devices Inc Maxim Integrated, in a SO-16. 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 | N.C. | unconnected | Not connected. |
| 2 | P0 | bidirectional | I/O pin of channel 0, a logic input and open-drain output with 100Ω maximum on-resistance and a 0V to 5.25V operating range; power-on default is indeterminate. |
| 3 | VCC | power_in | Optional power supply input with a range of 2.8V to 5.25V that must be tied to GND if not used. |
| 4 | I/O | bidirectional | 1-Wire interface, open-drain, requiring an external pullup resistor. |
| 5 | GND | power_in | Ground reference for the device. |
| 6 | N.C. | unconnected | Not connected. |
| 7 | P7 | bidirectional | I/O pin of channel 7 with the same characteristics as P0 (logic input and open-drain output, 100Ω maximum on-resistance, 0V to 5.25V range). |
| 8 | P6 | bidirectional | I/O pin of channel 6 with the same characteristics as P0 (logic input and open-drain output, 100Ω maximum on-resistance, 0V to 5.25V range). |
| 9 | P5 | bidirectional | I/O pin of channel 5 with the same characteristics as P0 (logic input and open-drain output, 100Ω maximum on-resistance, 0V to 5.25V range). |
| 10 | RSTZ | bidirectional | Software-configurable PIO reset input (RST), where a LOW input sets all PIO outputs off, or open-drain strobe output (STRB) that pulses after a PIO write or read; power-on default function is RST. |
| 11 | P4 | bidirectional | I/O pin of channel 4 with the same characteristics as P0 (logic input and open-drain output, 100Ω maximum on-resistance, 0V to 5.25V range). |
| 12 | P3 | bidirectional | I/O pin of channel 3 with the same characteristics as P0 (logic input and open-drain output, 100Ω maximum on-resistance, 0V to 5.25V range). |
| 13 | P2 | bidirectional | I/O pin of channel 2 with the same characteristics as P0 (logic input and open-drain output, 100Ω maximum on-resistance, 0V to 5.25V range). |
| 14 | P1 | bidirectional | I/O pin of channel 1 with the same characteristics as P0 (logic input and open-drain output, 100Ω maximum on-resistance, 0V to 5.25V range). |
| 15 | N.C. | unconnected | Not connected. |
| 16 | N.C. | unconnected | Not connected. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices Inc Maxim Integrated |
| Package | SO-16 |
| Category | Interface |
| Pins | 16 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| 1-Wire Pullup Voltage | VPUP | 2.8 | 5.25 | V | Standard speed | 2 | |
| 1-Wire Pullup Voltage | VPUP | 3.3 | 5.25 | V | Overdrive speed | 2 | |
| Standby Supply Current | ICCS | 1 | µA | VCC at VPUP, I/O pin at 0.3V | 2 | ||
| 1-Wire Pullup Resistance | RPUP | 2.2 | kΩ | Notes 1, 2 | 2 | ||
| Input Capacitance | CIO | 1200 | pF | Notes 3, 4 | 2 | ||
| Input Load Current | IL | 1 | µA | I/O pin at VPUP, VCC at 0V | 2 | ||
| High-to-Low Switching Threshold | VTL | 0.5 | 3.2 | V | Notes 4, 5, 6 | 2 | |
| Input-Low Voltage (1-Wire) | VIL | 0.3 | V | Notes 1, 7 | 2 | ||
| Low-to-High Switching Threshold | VTH | 0.8 | 3.4 | V | Notes 4, 5, 8 | 2 | |
| Switching Hysteresis | VHY | 0.16 | 0.73 | V | Notes 9, 4 | 2 | |
| Output-Low Voltage (1-Wire) | VOL | 0.4 | V | at 4mA (Note 10) | 2 | ||
| Recovery Time | tREC | 5 | µs | Standard speed, RPUP = 2.2kΩ (Note 1) | 2 | ||
| Recovery Time | tREC | 2 | µs | Overdrive speed, RPUP = 2.2kΩ (Note 1) | 2 | ||
| Rising-Edge Hold-off Time | tREH | 0.5 | 5 | µs | Standard speed; Notes 11, 4 | 2 | |
| Rising-Edge Hold-off Time | tREH | 0.5 | 2 | µs | Overdrive speed; Notes 11, 4 | 2 | |
| Timeslot Duration | tSLOT | 65 | µs | Standard speed; Notes 1, 12 | 2 | ||
| Timeslot Duration | tSLOT | 10 | µs | Overdrive speed; Notes 1, 12 | 2 | ||
| Reset-Low Time | tRSTL | 480 | 720 | µs | Standard speed, VPUP > 4.5V (Notes 1, 12) | 3 | |
| Reset-Low Time | tRSTL | 660 | 720 | µs | Standard speed (Notes 1, 12) | 3 | |
| Reset-Low Time | tRSTL | 53 | 80 | µs | Overdrive speed (Notes 1, 12) | 3 | |
| Presence-Detect High Time | tPDH | 15 | 60 | µs | Standard speed (Note 12) | 3 | |
| Presence-Detect High Time | tPDH | 2 | 7 | µs | Overdrive speed (Note 12) | 3 | |
| Presence-Detect Fall Time | tFPD | 1 | 5 | µs | Standard speed, VPUP > 4.5V (Note 13) | 3 | |
| Presence-Detect Fall Time | tFPD | 1 | 8 | µs | Standard speed (Note 13) | 3 | |
| Presence-Detect Fall Time | tFPD | 1 | µs | Overdrive speed (Note 13) | 3 | ||
| Presence-Detect Low Time | tPDL | 60 | 240 | µs | Standard speed, VPUP > 4.5V (Note 12) | 3 | |
| Presence-Detect Low Time | tPDL | 60 | 280 | µs | Standard speed (Note 12) | 3 | |
| Presence-Detect Low Time | tPDL | 7 | 27 | µs | Overdrive speed (Note 12) | 3 | |
| Presence-Detect Sample Time | tMSP | 65 | 75 | µs | Standard speed, VPUP > 4.5V (Note 1) | 3 | |
| Presence-Detect Sample Time | tMSP | 68 | 75 | µs | Standard speed (Note 1) | 3 | |
| Presence-Detect Sample Time | tMSP | 8 | 9 | µs | Overdrive speed (Note 1) | 3 | |
| Write-0 Low Time | tW0L | 60 | 120 | µs | Standard speed (Notes 1, 12, 14) | 3 | |
| Write-0 Low Time | tW0L | 8 | 13 | µs | Overdrive speed (Notes 1, 12, 14) | 3 | |
| Write-1 Low Time | tW1L | 5 | 15 | µs | Standard speed (Notes 1, 12, 14) | 3 | |
| Write-1 Low Time | tW1L | 1 | 1.8 | µs | Overdrive speed (Notes 1, 12, 14) | 3 | |
| Write Sample Time (Slave Sampling) | tSLS | 15 | 60 | µs | Standard speed (Note 12) | 3 | |
| Write Sample Time (Slave Sampling) | tSLS | 1.8 | 8 | µs | Overdrive speed (Note 12) | 3 | |
| Read-Low Time | tRL | 5 | µs | Standard speed (Notes 1, 15); printed max is '15 - δ' | 3 | ||
| Read-Low Time | tRL | 1 | µs | Overdrive speed (Notes 1, 15); printed max is '1.8 - δ' | 3 | ||
| Read-0 Low Time (Data From Slave) | tSPD | 15 | 60 | µs | Standard speed (Note 12) | 3 | |
| Read-0 Low Time (Data From Slave) | tSPD | 1.8 | 8 | µs | Overdrive speed (Note 12) | 3 | |
| Read-Sample Time | tMSR | 15 | µs | Standard speed (Notes 1, 12, 15); printed min is 'tRL + δ' | 3 | ||
| Read-Sample Time | tMSR | 1.8 | µs | Overdrive speed (Notes 1, 12, 15); printed min is 'tRL + δ' | 3 | ||
| Input-Low Voltage (P0 to P7, RSTZ) | VIL | 0.3 | V | Notes 1, 7 | 3 | ||
| Input-High Voltage (P0 to P7, RSTZ) | VIH | 5.25 | V | VX = max (VPUP,VCC) (Note 1); printed min is 'VX - 0.8' | 3 | ||
| Output-Low Voltage (P0 to P7, RSTZ) | VOL | 0.4 | V | at 4mA (Note 10) | 3 | ||
| Leakage Current (P0 to P7, RSTZ) | ILP | 1 | µA | 5.25V at the pin | 3 | ||
| Output Fall Time (PIO, RSTZ) | tFPIO | 100 | ns | Notes 4, 16 | 3 | ||
| Minimum-Sensed PIO Pulse | tPWMIN | 1 | 5 | µs | Notes 4, 17 | 3 | |
| I/O Voltage to GND (P0 to P7, RSTZ) | -0.5 | 6 | V | 2 | |||
| P0 to P7, RSTZ, I/O combined sink current | 20 | mA | 2 | ||||
| Operating Temperature Range | -40 | 85 | °C | 2 | |||
| Junction Temperature | 150 | °C | 2 | ||||
| Storage Temperature Range | -55 | 125 | °C | 2 | |||
| Lead temperature (soldering 10s) | 300 | °C | soldering 10s | 2 | |||
| Soldering Temperature (reflow) | 260 | °C | 2 | ||||
| Optional Power Supply Input (VCC) range | VCC | 2.8 | 5.25 | V | Must be tied to GND if not used | 5 | |
| P0 to P7 I/O operating range | 0 | 5.25 | V | Logic input/open-drain output | 5 |
CAD (KiCad official)
- Symbol:
DS2408S+T&R - Footprint:
Package_SO:SOIC-16_3.9x9.9mm_P1.27mm - 3D model: SO-16 (KiCad packages3D, STEP)
- 3D model files:
ds2408s-t-r-etched.step/ds2408s-t-r-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ds2408s-t-r.step/ds2408s-t-r.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Analog Devices Inc Maxim Integrated datasheet (39 pp, sha256
a3ff6f43ff6573a3, retrieved 2026-10-21, 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).