CD4511BM

@@ -0,0 +1,61 @@+# CD4511BM++**HGSEMI** · Signal Switches, Multiplexers, Decoders · SOP-16++CD4511BM from HGSEMI, in a SOP-16. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | B | input | BCD input bit B (weight 2). CMOS input, VIH ~= 3.5 V @ VDD=5 V; VIL ~= 1.5 V @ VDD=5 V. Latched into internal storage on LE low->high transition. |+| 2 | C | input | BCD input bit C (weight 4). CMOS input referenced to VSS/VDD; input current typ +/-0.1 uA @ VDD=15 V. |+| 3 | LT | input | Lamp Test, active low. When LT=0, all seven segment outputs (a..g) are forced high regardless of other inputs (displays '8' / all segments on) for lamp verification. |+| 4 | BI | input | Blanking Input, active low. When BI=0 (and LT=1), all segment outputs are forced low, blanking the display. Can be driven with a PWM signal for intensity modulation. |+| 5 | LE | input | Latch Enable. LE=0 the latch is transparent and follows the D/C/B/A inputs; on LE 0->1 the current BCD code is stored and the outputs are held. Minimum latch-enable pulse width 260 ns typ at VDD=5 V. |+| 6 | D | input | BCD input bit D (MSB, weight 8). Standard CMOS input, VIN range 0 V to VDD. |+| 7 | A | input | BCD input bit A (LSB, weight 1). Standard CMOS input, VIN range 0 V to VDD. |+| 8 | VSS | power_in | Negative supply / ground reference (0 V). Recommended operating VDD-VSS range 5 V to 15 V; absolute max 18 V. |+| 9 | e | output | Seven-segment decoded output 'e' (NPN bipolar source driver). Active high; sources up to 25 mA into a common-cathode LED segment. VOH typ 3.75 V @ VDD=5 V, IOH=20 mA. |+| 10 | d | output | Seven-segment decoded output 'd'. Active-high source driver, up to 25 mA per output. |+| 11 | c | output | Seven-segment decoded output 'c'. Active-high source driver, up to 25 mA per output. |+| 12 | b | output | Seven-segment decoded output 'b'. Active-high source driver, up to 25 mA per output. |+| 13 | a | output | Seven-segment decoded output 'a'. Active-high source driver, up to 25 mA per output. |+| 14 | g | output | Seven-segment decoded output 'g' (center segment). Active-high source driver, up to 25 mA per output. |+| 15 | f | output | Seven-segment decoded output 'f'. Active-high source driver, up to 25 mA per output. |+| 16 | VDD | power_in | Positive supply. Recommended 5 V to 15 V; absolute maximum 18 V. Quiescent supply current 5 uA typ (VDD=5 V) / 20 uA typ (VDD=15 V) at 25 C. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | HGSEMI |+| Package | SOP-16 |+| Category | Logic |+| Pins | 16 |++## Ordering variants++Same part, different packaging or reel option.++- `CD4511BM/TR`+- `CD4511BMBE`+- `CD4511BMBN`+- `CD4511BMT/TR`+- `CD4511BMBLQ/TR`++## CAD (KiCad official)++- Symbol: `CD4511BM`+- Footprint: `Package_SO:SOIC-16_3.9x9.9mm_P1.27mm`+- 3D model: SOP-16 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [HGSEMI datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8756304600615919616) (12 pp, sha256 `02161ce34a6dfa00`, retrieved 2026-08-17, 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).++[Datasheet PDF](docs/cd4511bm-datasheet.pdf)

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