component
CD4028BPW
Public Made by Adomby adom
Texas Instruments Signal Switches, Multiplexers, Decoders, TSSOP-16. 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
markdownCD4028BPW
Texas Instruments · Signal Switches, Multiplexers, Decoders · TSSOP-16
CD4028BPW from Texas Instruments, in a TSSOP-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 | 4 | output | Buffered decoded output 4, goes high when the BCD input code selects 4. |
| 2 | 2 | output | Buffered decoded output 2, goes high when the BCD input code selects 2. |
| 3 | 0 | output | Buffered decoded output 0, goes high when the BCD input code selects 0. |
| 4 | 7 | output | Buffered decoded output 7, goes high when the input code selects 7. |
| 5 | 9 | output | Buffered decoded output 9, goes high when the BCD input code selects 9. |
| 6 | 5 | output | Buffered decoded output 5, goes high when the BCD input code selects 5. |
| 7 | 6 | output | Buffered decoded output 6, goes high when the BCD input code selects 6. |
| 8 | VSS | power_in | Negative supply (ground) terminal; supply voltages are referenced to VSS. |
| 9 | 8 | output | Buffered decoded output 8, goes high when the BCD input code selects 8. |
| 10 | A | input | BCD input A (least significant bit), CMOS-protected, input voltage range -0.5 V to VDD+0.5 V. |
| 11 | D | input | BCD input D (most significant bit); for 3-bit binary-to-octal decoding D must be 0. |
| 12 | C | input | BCD/binary input C, CMOS-protected, input voltage range -0.5 V to VDD+0.5 V. |
| 13 | B | input | BCD/binary input B, CMOS-protected, input voltage range -0.5 V to VDD+0.5 V. |
| 14 | 1 | output | Buffered decoded output 1, goes high when the BCD input code selects 1. |
| 15 | 3 | output | Buffered decoded output 3, goes high when the BCD input code selects 3. |
| 16 | VDD | power_in | Positive supply voltage, recommended 3 V to 18 V, absolute maximum -0.5 V to +20 V referenced to VSS. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSSOP-16 |
| Category | Logic |
| Pins | 16 |
CAD (KiCad official)
- Symbol:
CD4028BPW - Footprint:
Package_SO:TSSOP-16_4.4x5mm_P0.65mm - 3D model: TSSOP-16 (KiCad packages3D, STEP)
- 3D model files:
cd4028bpw-etched.step/cd4028bpw-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);cd4028bpw.step/cd4028bpw.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (19 pp, sha256
79754cf344b09f29, retrieved 2026-10-01, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-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).