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CD4026BNSR
Public Made by Adomby adom
Texas Instruments Counters, Dividers, SO-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
markdownCD4026BNSR
Texas Instruments · Counters, Dividers · SO-16
CD4026BNSR from Texas Instruments, 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 | CLOCK | input | Schmitt-triggered clock input; the counter advances on the positive clock transition when CLOCK INHIBIT is low, with input range -0.5 V to VDD+0.5 V. |
| 2 | CLOCK INHIBIT | input | When high it inhibits counter advancement via the clock line, and when low the counter advances on the positive clock edge; it can serve as a negative-edge clock if the clock line is held high. |
| 3 | DISPLAY ENABLE IN | input | When low the seven decoded outputs are forced low regardless of counter state, and when high the decoded outputs are active. |
| 4 | DISPLAY ENABLE OUT | output | Display enable output, which follows DISPLAY ENABLE IN. |
| 5 | CARRY OUT | output | Carry output (CLOCK ÷ 10) that completes one cycle every ten clock input cycles to clock the next decade, and is not gated by DISPLAY ENABLE. |
| 6 | f | output | Decoded 7-segment output f, which goes high to illuminate segment f only when DISPLAY ENABLE IN is high. |
| 7 | g | output | Decoded 7-segment output g, which goes high to illuminate segment g only when DISPLAY ENABLE IN is high. |
| 8 | VSS | power_in | Ground (VSS) supply terminal, the reference for all voltage ratings. |
| 9 | d | output | Decoded 7-segment output d, which goes high to illuminate segment d only when DISPLAY ENABLE IN is high. |
| 10 | a | output | Decoded 7-segment output a, which goes high to illuminate segment a only when DISPLAY ENABLE IN is high. |
| 11 | e | output | Decoded 7-segment output e, which goes high to illuminate segment e only when DISPLAY ENABLE IN is high. |
| 12 | b | output | Decoded 7-segment output b, which goes high to illuminate segment b only when DISPLAY ENABLE IN is high. |
| 13 | c | output | Decoded 7-segment output c, which goes high to illuminate segment c only when DISPLAY ENABLE IN is high. |
| 14 | UNGATED "C" SEGMENT OUT | output | Ungated C-segment output that is not gated by DISPLAY ENABLE and is available continuously, for divide-by-60 and divide-by-12 functions. |
| 15 | RESET | input | A high level clears the decade counter to its zero count. |
| 16 | VDD | power_in | Positive supply, recommended 3 V to 18 V over the full temperature range, with an absolute maximum of -0.5 V to +20 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SO-16 |
| Category | Logic |
| Pins | 16 |
CAD (KiCad official)
- Symbol:
CD4026BNSR - Footprint:
Package_SO:SOIC-16_3.9x9.9mm_P1.27mm - 3D model: SO-16 (KiCad packages3D, STEP)
- 3D model files:
cd4026bnsr-etched.step/cd4026bnsr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);cd4026bnsr.step/cd4026bnsr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (19 pp, sha256
7ac59b14788365ef, retrieved 2026-10-03, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(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).