component
CD4538SA16.TR
Public Made by Adomby adom
Wuxi I core Elec Monostable Multivibrators, SOP-16. Pinout reviewed by a person 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
markdownCD4538SA16.TR
Wuxi I core Elec · Monostable Multivibrators · SOP-16
CD4538SA16.TR from Wuxi I core Elec, in a SOP-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 | 1CEXT | passive | External capacitor connection for first monostable, always connected to ground for RC timing network. |
| 2 | 1REXT/CEXT | passive | External resistor/capacitor connection for first monostable; output pulse width tW = REXT×CEXT. |
| 3 | 1CD, | input | Direct reset input (active LOW) for first monostable; terminates output pulse immediately when driven LOW. |
| 4 | 1B | input | Low-to-HIGH triggered input for first monostable; triggers retriggerable output on positive edge. |
| 5 | 1A, | input | High-to-LOW triggered input for first monostable; triggers retriggerable output on negative edge. |
| 6 | 1Q | output | Output of first monostable producing HIGH-level pulse with width determined by REXT and CEXT. |
| 7 | 1Q, | output | Complementary output (active LOW) of first monostable producing LOW-level pulse with width determined by REXT and CEXT. |
| 8 | VSS | power_in | Ground reference, 0V, provides common return path for both monostables. |
| 9 | 2Q, | output | Complementary output (active LOW) of second monostable producing LOW-level pulse with width determined by REXT and CEXT. |
| 10 | 2Q | output | Output of second monostable producing HIGH-level pulse with width determined by REXT and CEXT. |
| 11 | 2A, | input | High-to-LOW triggered input for second monostable; triggers retriggerable output on negative edge. |
| 12 | 2B | input | Low-to-HIGH triggered input for second monostable; triggers retriggerable output on positive edge. |
| 13 | 2CD, | input | Clear direct input (active LOW) for second monostable; terminates output pulse immediately when driven LOW. |
| 14 | 2REXT/CEXT | passive | External resistor/capacitor connection for second monostable; output pulse width tW = REXT×CEXT. |
| 15 | 2CEXT | passive | External capacitor connection for second monostable, always connected to ground for RC timing network. |
| 16 | VDD | power_in | Supply voltage input; recommended operating range 3V to 12V referenced to VSS (ground). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Wuxi I core Elec |
| Package | SOP-16 |
| Category | Logic |
| Pins | 16 |
CAD (KiCad official)
- Symbol:
CD4538SA16.TR - Footprint:
Package_SO:SOIC-16_3.9x9.9mm_P1.27mm - 3D model: SOP-16 (KiCad packages3D, STEP)
- 3D model files:
cd4538sa16-tr-etched.step/cd4538sa16-tr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);cd4538sa16-tr.step/cd4538sa16-tr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Wuxi I core Elec datasheet (16 pp, sha256
5b3334b3a8c45688, retrieved 2026-09-29, tier: lcsc) - Extractor:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).