component
SN74CB3T3245DWR
Public Made by Adomby adom
Texas Instruments Signal Switches, Multiplexers, Decoders, SOIC-20-300mil. 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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README
markdownSN74CB3T3245DWR
Texas Instruments · Signal Switches, Multiplexers, Decoders · SOIC-20-300mil
SN74CB3T3245DWR from Texas Instruments, in a SOIC-20-300mil. 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 | NC | unconnected | Not internally connected; the pin has no internal connection to the switch. |
| 2 | A1 | bidirectional | Switch 1A terminal; bidirectional data I/O with a recommended voltage range of 0 V to 5.5 V. |
| 3 | A2 | bidirectional | Switch 2A terminal; bidirectional data I/O with a recommended voltage range of 0 V to 5.5 V. |
| 4 | A3 | bidirectional | Switch 3A terminal; bidirectional data I/O with a recommended voltage range of 0 V to 5.5 V. |
| 5 | A4 | bidirectional | Switch 4A terminal; bidirectional data I/O with a recommended voltage range of 0 V to 5.5 V. |
| 6 | A5 | bidirectional | Switch 5A terminal; bidirectional data I/O with a recommended voltage range of 0 V to 5.5 V. |
| 7 | A6 | bidirectional | Switch 6A terminal; bidirectional data I/O with a recommended voltage range of 0 V to 5.5 V. |
| 8 | A7 | bidirectional | Switch 7A terminal; bidirectional data I/O with a recommended voltage range of 0 V to 5.5 V. |
| 9 | A8 | bidirectional | Switch 8A terminal; bidirectional data I/O with a recommended voltage range of 0 V to 5.5 V. |
| 10 | GND | power_in | Ground reference; all voltages in the datasheet are referenced to ground. |
| 11 | B8 | bidirectional | Switch 8 B terminal; bidirectional data I/O with a recommended voltage range of 0 V to 5.5 V. |
| 12 | B7 | bidirectional | Switch 7 B terminal; bidirectional data I/O with a recommended voltage range of 0 V to 5.5 V. |
| 13 | B6 | bidirectional | Switch 6 B terminal; bidirectional data I/O with a recommended voltage range of 0 V to 5.5 V. |
| 14 | B5 | bidirectional | Switch 5 B terminal; bidirectional data I/O with a recommended voltage range of 0 V to 5.5 V. |
| 15 | B4 | bidirectional | Switch 4 B terminal; bidirectional data I/O with a recommended voltage range of 0 V to 5.5 V. |
| 16 | B3 | bidirectional | Switch 3 B terminal; bidirectional data I/O with a recommended voltage range of 0 V to 5.5 V. |
| 17 | B2 | bidirectional | Switch 2 B terminal; bidirectional data I/O with a recommended voltage range of 0 V to 5.5 V. |
| 18 | B1 | bidirectional | Switch 1 B terminal; bidirectional data I/O with a recommended voltage range of 0 V to 5.5 V. |
| 19 | OE | input | Output enable, active low; when low the A and B ports are connected, and when high they are disconnected (high impedance). |
| 20 | VCC | power_in | Power supply with an operating range of 2.3 V to 3.6 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-20-300mil |
| Category | Logic |
| Pins | 20 |
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 | VCC | -0.5 | 7 | V | With respect to ground | 4 | |
| Control input voltage | VIN | -0.5 | 7 | V | With respect to ground | 4 | |
| Switch I/O voltage | VI/O | -0.5 | 7 | V | With respect to ground | 4 | |
| Control input clamp current | IIK | -50 | mA | VIN < 0 | 4 | ||
| I/O port clamp current | II/OK | -50 | mA | VI/O < 0 | 4 | ||
| ON-state switch current | II/O | -128 | 128 | mA | 4 | ||
| Continuous current through VCC or GND | -100 | 100 | mA | 4 | |||
| Junction temperature | TJ | 150 | °C | 4 | |||
| Storage temperature | Tstg | -65 | 150 | °C | 4 | ||
| Electrostatic discharge, human-body model | V(ESD) | -2000 | 2000 | V | HBM per ANSI/ESDA/JEDEC JS-001 | 4 | |
| Electrostatic discharge, charged-device model | V(ESD) | -1000 | 1000 | V | CDM per JEDEC JESD22-C101 | 4 | |
| Supply voltage | VCC | 2.3 | 3.6 | V | 4 | ||
| High-level control input voltage | VIH | 1.7 | 5.5 | V | VCC = 2.3V to 2.7V | 4 | |
| High-level control input voltage | VIH | 2 | 5.5 | V | VCC = 2.7V to 3.6V | 4 | |
| Low-level control input voltage | VIL | 0 | 0.7 | V | VCC = 2.3V to 2.7V | 4 | |
| Low-level control input voltage | VIL | 0 | 0.8 | V | VCC = 2.7V to 3.6V | 4 | |
| Data input/output voltage | VI/O | 0 | 5.5 | V | 4 | ||
| Operating free-air temperature | TA | -40 | 85 | °C | 4 | ||
| Input clamp voltage | VIK | -1.2 | V | VCC = 3V, II = -18mA | 5 | ||
| Control input leakage current | IIN | -10 | 10 | µA | Control inputs VCC = 3.6V, VIN = 3.6V to 5.5V or GND | 5 | |
| On-state leakage current | II | -20 | 20 | µA | VCC = 3.6V, switch ON, VIN = VCC or GND, VI = VCC - 0.7V to 5.5V | 5 | |
| On-state leakage current | II | -40 | µA | VCC = 3.6V, switch ON, VIN = VCC or GND, VI = 0.7V to VCC - 0.7V | 5 | ||
| On-state leakage current | II | -5 | 5 | µA | VCC = 3.6V, switch ON, VIN = VCC or GND, VI = 0 to 0.7V | 5 | |
| Off-state leakage current | IOZ | -10 | 10 | µA | VCC = 3.6V, VO = 0 to 5.5V, VI = 0, switch OFF, VIN = VCC or GND | 5 | |
| Power-off leakage current | Ioff | 10 | µA | VCC = 0, VO = 0 to 5.5V, VI = 0 | 5 | ||
| Quiescent supply current | ICC | 40 | µA | VCC = 3.6V, II/O = 0, switch ON or OFF, VIN = VCC or GND, VI = VCC or GND | 5 | ||
| Additional supply current per control input | ΔICC | 300 | µA | VCC = 3V to 3.6V, one input at VCC - 0.6V, other inputs at VCC or GND | 5 | ||
| Control input capacitance | Cin | 4 | pF | VCC = 3.3V, VIN = VCC or GND | 5 | ||
| Input/output capacitance, switch OFF | Cio(OFF) | 5 | pF | VCC = 3.3V, VI/O = 5.5V, 3.3V, or GND, switch OFF, VIN = VCC or GND | 5 | ||
| Input/output capacitance, switch ON | Cio(ON) | 5 | pF | VCC = 3.3V, switch ON, VIN = VCC or GND, VI/O = 5.5V or 3.3V | 5 | ||
| Input/output capacitance, switch ON | Cio(ON) | 13 | pF | VCC = 3.3V, switch ON, VIN = VCC or GND, VI/O = GND | 5 | ||
| ON-state resistance | ron | 5 | 8.5 | Ω | VCC = 2.3V, VI = 0, IO = 24mA | 5 | |
| ON-state resistance | ron | 5 | 7 | Ω | VCC = 3V, VI = 0, IO = 64mA | 5 | |
| Propagation delay | tpd | 0.15 | ns | VCC = 2.5V ± 0.2V, RL = 1GΩ, CL = 30pF, Vload = 0V, A or B to B or A | 5 | ||
| Propagation delay | tpd | 0.25 | ns | VCC = 3.3V ± 0.3V, RL = 1GΩ, CL = 50pF, Vload = 0V, A or B to B or A | 5 | ||
| Enable time | ten | 11.7 | ns | VCC = 2.5V ± 0.2V, ZL: RL = 250Ω, CL = 30pF; ZH: RL = 500Ω, CL = 30pF, OE to A or B | 5 | ||
| Enable time | ten | 8 | ns | VCC = 3.3V ± 0.3V, ZL: RL = 250Ω, CL = 50pF; ZH: RL = 500Ω, CL = 50pF, OE to A or B | 6 | ||
| Disable time | tdis | 8 | ns | VCC = 2.5V ± 0.2V, LZ: RL = 250Ω, CL = 30pF, Vt = 0.15V; HZ: RL = 500Ω, CL = 30pF, Vt = 0.15V, OE to A or B | 6 | ||
| Disable time | tdis | 8.8 | ns | VCC = 3.3V ± 0.3V, LZ: RL = 250Ω, CL = 50pF, Vt = 0.3V; HZ: RL = 500Ω, CL = 50pF, Vt = 0.3V, OE to A or B | 6 | ||
| Junction-to-ambient thermal resistance | RθJA | 58 | °C/W | DW (SOIC) 20-pin package | 5 |
CAD (KiCad official)
- Symbol:
SN74CB3T3245DWR - Footprint:
Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm - 3D model: SOIC-20-300mil (KiCad packages3D, STEP)
- 3D model files:
sn74cb3t3245dwr-etched.step/sn74cb3t3245dwr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sn74cb3t3245dwr.step/sn74cb3t3245dwr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (30 pp, sha256
be4bb22c4c003319, retrieved 2026-11-05, tier: manufacturer) - 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).