component
SN74CBT3253DBQR
Public Made by Adomby adom
Texas Instruments Signal Switches, Multiplexers, Decoders, SSOP-16-150mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads on click. Unloads only if this page sits in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads on click. Unloads only if this page sits in the background.
PCB Footprint
Open full view ↗Loads on click. Unloads only if this page sits in the background.
Datasheet
Open in new tab ↗Loads on click. Unloads only if this page sits in the background.
README
markdownSN74CBT3253DBQR
Texas Instruments · Signal Switches, Multiplexers, Decoders · SSOP-16-150mil
SN74CBT3253DBQR from Texas Instruments, in a SSOP-16-150mil. 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 | 1OE | input | Active-low output enable for mux 1; high disconnects 1A from 1B1-1B4, TTL-compatible input (VIH min 2 V, VIL max 0.8 V). |
| 2 | S1 | input | Select input S1 shared by both multiplexers, chooses the B port with S0; TTL-compatible input (VIH min 2 V, VIL max 0.8 V). |
| 3 | 1B4 | bidirectional | Channel 4 port B of multiplexer 1, connected to 1A when S1 = H and S0 = H with 1OE low. |
| 4 | 1B3 | bidirectional | Channel 3 port B of multiplexer 1, connected to 1A when S1 = H and S0 = L with 1OE low. |
| 5 | 1B2 | bidirectional | Channel 2 port B of multiplexer 1, connected to 1A when S1 = L and S0 = H with 1OE low. |
| 6 | 1B1 | bidirectional | Channel 1 port B of multiplexer 1, connected to 1A when S1 = L and S0 = L with 1OE low. |
| 7 | 1A | bidirectional | Common port A of multiplexer 1, switched to one of 1B1-1B4 with on-state resistance of 5 Ω typ-max 7 Ω at 4.5 V, 64 mA. |
| 8 | GND | power_in | Ground; unused control inputs must be held at VCC or GND. |
| 9 | 2A | bidirectional | Common port A of multiplexer 2, switched to one of 2B1-2B4 with continuous channel current rated at 128 mA max. |
| 10 | 2B1 | bidirectional | Channel 1 port B of multiplexer 2, connected to 2A when S1 = L and S0 = L with 2OE low. |
| 11 | 2B2 | bidirectional | Channel 2 port B of multiplexer 2, connected to 2A when S1 = L and S0 = H with 2OE low. |
| 12 | 2B3 | bidirectional | Channel 3 port B of multiplexer 2, connected to 2A when S1 = H and S0 = L with 2OE low. |
| 13 | 2B4 | bidirectional | Channel 4 port B of multiplexer 2, connected to 2A when S1 = H and S0 = H with 2OE low. |
| 14 | S0 | input | Select input S0 shared by both multiplexers, chooses the B port with S1; TTL-compatible input (VIH min 2 V, VIL max 0.8 V). |
| 15 | 2OE | input | Active-low output enable for mux 2; high disconnects 2A from 2B1-2B4, TTL-compatible input (VIH min 2 V, VIL max 0.8 V). |
| 16 | VCC | power_in | Supply voltage, recommended 4 V to 5.5 V, absolute maximum -0.5 V to 7 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SSOP-16-150mil |
| Category | Logic |
| Pins | 16 |
CAD (KiCad official)
- Symbol:
SN74CBT3253DBQR - Footprint:
Package_SO:SSOP-16_5.3x6.2mm_P0.65mm - 3D model: SSOP-16-150mil (KiCad packages3D, STEP)
- 3D model files:
sn74cbt3253dbqr-etched.step/sn74cbt3253dbqr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sn74cbt3253dbqr.step/sn74cbt3253dbqr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (23 pp, sha256
e6985bcba97d587d, retrieved 2026-10-05, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-4-5-20251001(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).