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SN74CB3T16211DLR

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Texas Instruments Analog Switches, Multiplexers, SSOP-56-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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SN74CB3T16211DLR

Texas Instruments · Analog Switches, Multiplexers · SSOP-56-300mil

SN74CB3T16211DLR from Texas Instruments, in a SSOP-56-300mil. 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 No internal connection.
2 1A1 bidirectional Bus 1 A-port data I/O 1, connected to 1B1 when 1OE is low; supports 0 to 5.5 V signaling.
3 1A2 bidirectional Bus 1 A-port data I/O 2, connected to 1B2 when 1OE is low; supports 0 to 5.5 V signaling.
4 1A3 bidirectional Bus 1 A-port data I/O 3, connected to 1B3 when 1OE is low; supports 0 to 5.5 V signaling.
5 1A4 bidirectional Bus 1 A-port data I/O 4, connected to 1B4 when 1OE is low; supports 0 to 5.5 V signaling.
6 1A5 bidirectional Bus 1 A-port data I/O 5, connected to 1B5 when 1OE is low; supports 0 to 5.5 V signaling.
7 1A6 bidirectional Bus 1 A-port data I/O 6, connected to 1B6 when 1OE is low; supports 0 to 5.5 V signaling.
8 GND power_in Ground.
9 1A7 bidirectional Bus 1 A-port data I/O 7, connected to 1B7 when 1OE is low; supports 0 to 5.5 V signaling.
10 1A8 bidirectional Bus 1 A-port data I/O 8, connected to 1B8 when 1OE is low; supports 0 to 5.5 V signaling.
11 1A9 bidirectional Bus 1 A-port data I/O 9, connected to 1B9 when 1OE is low; supports 0 to 5.5 V signaling.
12 1A10 bidirectional Bus 1 A-port data I/O 10, connected to 1B10 when 1OE is low; supports 0 to 5.5 V signaling.
13 1A11 bidirectional Bus 1 A-port data I/O 11, connected to 1B11 when 1OE is low; supports 0 to 5.5 V signaling.
14 1A12 bidirectional Bus 1 A-port data I/O 12, connected to 1B12 when 1OE is low; supports 0 to 5.5 V signaling.
15 2A1 bidirectional Bus 2 A-port data I/O 1, connected to 2B1 when 2OE is low; supports 0 to 5.5 V signaling.
16 2A2 bidirectional Bus 2 A-port data I/O 2, connected to 2B2 when 2OE is low; supports 0 to 5.5 V signaling.
17 VCC power_in Supply voltage, 2.3 V to 3.6 V operating range.
18 2A3 bidirectional Bus 2 A-port data I/O 3, connected to 2B3 when 2OE is low; supports 0 to 5.5 V signaling.
19 GND power_in Ground.
20 2A4 bidirectional Bus 2 A-port data I/O 4, connected to 2B4 when 2OE is low; supports 0 to 5.5 V signaling.
21 2A5 bidirectional Bus 2 A-port data I/O 5, connected to 2B5 when 2OE is low; supports 0 to 5.5 V signaling.
22 2A6 bidirectional Bus 2 A-port data I/O 6, connected to 2B6 when 2OE is low; supports 0 to 5.5 V signaling.
23 2A7 bidirectional Bus 2 A-port data I/O 7, connected to 2B7 when 2OE is low; supports 0 to 5.5 V signaling.
24 2A8 bidirectional Bus 2 A-port data I/O 8, connected to 2B8 when 2OE is low; supports 0 to 5.5 V signaling.
25 2A9 bidirectional Bus 2 A-port data I/O 9, connected to 2B9 when 2OE is low; supports 0 to 5.5 V signaling.
26 2A10 bidirectional Bus 2 A-port data I/O 10, connected to 2B10 when 2OE is low; supports 0 to 5.5 V signaling.
27 2A11 bidirectional Bus 2 A-port data I/O 11, connected to 2B11 when 2OE is low; supports 0 to 5.5 V signaling.
28 2A12 bidirectional Bus 2 A-port data I/O 12, connected to 2B12 when 2OE is low; supports 0 to 5.5 V signaling.
29 2B12 bidirectional Bus 2 B-port data I/O 12, connected to 2A12 when 2OE is low; supports 0 to 5.5 V signaling.
30 2B11 bidirectional Bus 2 B-port data I/O 11, connected to 2A11 when 2OE is low; supports 0 to 5.5 V signaling.
31 2B10 bidirectional Bus 2 B-port data I/O 10, connected to 2A10 when 2OE is low; supports 0 to 5.5 V signaling.
32 2B9 bidirectional Bus 2 B-port data I/O 9, connected to 2A9 when 2OE is low; supports 0 to 5.5 V signaling.
33 2B8 bidirectional Bus 2 B-port data I/O 8, connected to 2A8 when 2OE is low; supports 0 to 5.5 V signaling.
34 2B7 bidirectional Bus 2 B-port data I/O 7, connected to 2A7 when 2OE is low; supports 0 to 5.5 V signaling.
35 2B6 bidirectional Bus 2 B-port data I/O 6, connected to 2A6 when 2OE is low; supports 0 to 5.5 V signaling.
36 2B5 bidirectional Bus 2 B-port data I/O 5, connected to 2A5 when 2OE is low; supports 0 to 5.5 V signaling.
37 2B4 bidirectional Bus 2 B-port data I/O 4, connected to 2A4 when 2OE is low; supports 0 to 5.5 V signaling.
38 GND power_in Ground.
39 2B3 bidirectional Bus 2 B-port data I/O 3, connected to 2A3 when 2OE is low; supports 0 to 5.5 V signaling.
40 2B2 bidirectional Bus 2 B-port data I/O 2, connected to 2A2 when 2OE is low; supports 0 to 5.5 V signaling.
41 2B1 bidirectional Bus 2 B-port data I/O 1, connected to 2A1 when 2OE is low; supports 0 to 5.5 V signaling.
42 1B12 bidirectional Bus 1 B-port data I/O 12, connected to 1A12 when 1OE is low; supports 0 to 5.5 V signaling.
43 1B11 bidirectional Bus 1 B-port data I/O 11, connected to 1A11 when 1OE is low; supports 0 to 5.5 V signaling.
44 1B10 bidirectional Bus 1 B-port data I/O 10, connected to 1A10 when 1OE is low; supports 0 to 5.5 V signaling.
45 1B9 bidirectional Bus 1 B-port data I/O 9, connected to 1A9 when 1OE is low; supports 0 to 5.5 V signaling.
46 1B8 bidirectional Bus 1 B-port data I/O 8, connected to 1A8 when 1OE is low; supports 0 to 5.5 V signaling.
47 1B7 bidirectional Bus 1 B-port data I/O 7, connected to 1A7 when 1OE is low; supports 0 to 5.5 V signaling.
48 1B6 bidirectional Bus 1 B-port data I/O 6, connected to 1A6 when 1OE is low; supports 0 to 5.5 V signaling.
49 GND power_in Ground.
50 1B5 bidirectional Bus 1 B-port data I/O 5, connected to 1A5 when 1OE is low; supports 0 to 5.5 V signaling.
51 1B4 bidirectional Bus 1 B-port data I/O 4, connected to 1A4 when 1OE is low; supports 0 to 5.5 V signaling.
52 1B3 bidirectional Bus 1 B-port data I/O 3, connected to 1A3 when 1OE is low; supports 0 to 5.5 V signaling.
53 1B2 bidirectional Bus 1 B-port data I/O 2, connected to 1A2 when 1OE is low; supports 0 to 5.5 V signaling.
54 1B1 bidirectional Bus 1 B-port data I/O 1, connected to 1A1 when 1OE is low; supports 0 to 5.5 V signaling.
55 2OE input Output enable for the second 12-bit bus switch; low turns it ON, high gives high-impedance between A and B (VIH 2 V to 5.5 V at VCC 2.7-3.6 V).
56 1OE input Output enable for the first 12-bit bus switch; low turns it ON, high gives high-impedance between A and B (VIH 2 V to 5.5 V at VCC 2.7-3.6 V).

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SSOP-56-300mil
Category Interface
Pins 56

CAD (KiCad official)

  • Symbol: SN74CB3T16211DLR
  • Footprint: Package_SO:SSOP-56_7.5x18.5mm_P0.635mm
  • 3D model: SSOP-56-300mil (KiCad packages3D, STEP)
  • 3D model files: sn74cb3t16211dlr-etched.step / sn74cb3t16211dlr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn74cb3t16211dlr.step / sn74cb3t16211dlr.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Texas Instruments datasheet (22 pp, sha256 00303f785fd29976, retrieved 2026-10-07, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-4-5-20251001 (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