# CD4020BM

**lingxingic** · Counters, Dividers · SOP-16

CD4020BM from lingxingic, 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 | Q11 | output | Fully buffered parallel binary counter output Q11 of the 14-stage counter. |
| 2 | Q12 | output | Fully buffered parallel binary counter output Q12 of the 14-stage counter. |
| 3 | Q13 | output | Fully buffered parallel binary counter output Q13, the most significant stage of the 14-stage counter. |
| 4 | Q5 | output | Fully buffered parallel binary counter output Q5 of the 14-stage counter. |
| 5 | Q4 | output | Fully buffered parallel binary counter output Q4 of the 14-stage counter. |
| 6 | Q6 | output | Fully buffered parallel binary counter output Q6 of the 14-stage counter. |
| 7 | Q3 | output | Fully buffered parallel binary counter output Q3 of the 14-stage counter. |
| 8 | VSS | power_in | Ground supply voltage; voltages are referenced to VSS (0 V), with recommended VDD of 3 V to 15V above it. |
| 9 | Q0 | output | Fully buffered parallel binary counter output Q0 of the 14-stage counter. |
| 10 | CP | input | Clock input; the counter advances on the HIGH-to-LOW (negative-going) edge of CP. |
| 11 | MR | input | Master reset input, active HIGH; when HIGH it resets all outputs to LOW and overrides CP. |
| 12 | Q8 | output | Fully buffered parallel binary counter output Q8 of the 14-stage counter. |
| 13 | Q7 | output | Fully buffered parallel binary counter output Q7 of the 14-stage counter. |
| 14 | Q9 | output | Fully buffered parallel binary counter output Q9 of the 14-stage counter. |
| 15 | Q10 | output | Fully buffered parallel binary counter output Q10 of the 14-stage counter. |
| 16 | VDD | power_in | Positive supply voltage; recommended operating range is 3 V to 15 V referenced to VSS. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | lingxingic |
| Package | SOP-16 |
| Category | Logic |
| Pins | 16 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| supply voltage | VDD | -0.5 |  | 18 | V |  | 6 |
| input voltage (all inputs; printed max VDD+0.5) | VI | -0.5 |  |  | V | all inputs | 6 |
| DC input current (any one input) | IIK | -10 |  | 10 | mA | any one input | 6 |
| storage temperature | Tstg | -65 |  | 150 | ℃ |  | 6 |
| supply voltage | VDD | 3 |  | 15 | V |  | 6 |
| ambient temperature | Tamb | -40 |  | 125 | ℃ | in free air | 6 |
| HIGH-level input voltage (VDD=5V) | VIH | 3.5 |  |  | V | Tamb=-40℃ to +85℃ | 6 |
| HIGH-level input voltage (VDD=10V) | VIH | 7 |  |  | V | Tamb=-40℃ to +85℃ | 6 |
| HIGH-level input voltage (VDD=15V) | VIH | 11 |  |  | V | Tamb=-40℃ to +85℃ | 6 |
| LOW-level input voltage (VDD=5V) | VIL |  |  | 1.5 | V | Tamb=-40℃ to +85℃ | 6 |
| LOW-level input voltage (VDD=10V) | VIL |  |  | 3 | V | Tamb=-40℃ to +85℃ | 6 |
| LOW-level input voltage (VDD=15V) | VIL |  |  | 4 | V | Tamb=-40℃ to +85℃ | 6 |
| HIGH-level output voltage (VDD=5V) | VOH | 4.95 |  |  | V | Tamb=-40℃ to +85℃; /IO/<1uA | 6 |
| HIGH-level output voltage (VDD=10V) | VOH | 9.95 |  |  | V | Tamb=-40℃ to +85℃; /IO/<1uA | 6 |
| HIGH-level output voltage (VDD=15V) | VOH | 14.95 |  |  | V | Tamb=-40℃ to +85℃; /IO/<1uA | 6 |
| LOW-level output voltage (VDD=5V) | VOL |  |  | 0.05 | V | Tamb=-40℃ to +85℃; /IO/<1uA | 6 |
| LOW-level output voltage (VDD=10V) | VOL |  |  | 0.05 | V | Tamb=-40℃ to +85℃; /IO/<1uA | 6 |
| LOW-level output voltage (VDD=15V) | VOL |  |  | 0.05 | V | Tamb=-40℃ to +85℃; /IO/<1uA | 6 |
| HIGH-level output current (VDD=5V) | IOH |  |  | -0.34 | mA | Tamb=-40℃ to +85℃; VO=4.6V | 6 |
| HIGH-level output current (VDD=5V) | IOH |  |  | -1.3 | mA | Tamb=-40℃ to +85℃; VO=2.5V | 6 |
| HIGH-level output current (VDD=10V) | IOH |  |  | -0.55 | mA | Tamb=-40℃ to +85℃; VO=9.5V | 6 |
| HIGH-level output current (VDD=15V) | IOH |  |  | -1.65 | mA | Tamb=-40℃ to +85℃; VO=13.5V | 6 |
| LOW-level output current (VDD=5V) | IOL | 0.34 |  |  | mA | Tamb=-40℃ to +85℃; VO=0.4V | 6 |
| LOW-level output current (VDD=10V) | IOL | 0.46 |  |  | mA | Tamb=-40℃ to +85℃; VO=0.5V | 6 |
| LOW-level output current (VDD=15V) | IOL | 1.4 |  |  | mA | Tamb=-40℃ to +85℃; VO=1.5V | 6 |
| input leakage current (VDD=15V) | II | -1 |  | 1 | uA | Tamb=-40℃ to +85℃; VI=15V or GND | 6 |
| supply current (VDD=5V) | IDD |  |  | 150 | uA | Tamb=-40℃ to +85℃; VI=5V or GND; IO=0A | 6 |
| supply current (VDD=10V) | IDD |  |  | 300 | uA | Tamb=-40℃ to +85℃; VI=10V or GND; IO=0A | 6 |
| supply current (VDD=15V) | IDD |  |  | 600 | uA | Tamb=-40℃ to +85℃; VI=15V or GND; IO=0A | 6 |
| HIGH to LOW propagation delay CP to Q0 (VDD=5V) | tPHL |  | 105 | 210 | ns | Tamb=-40℃ to +85℃; CP to Q0; see Figure 4 | 8 |
| HIGH to LOW propagation delay CP to Q0 (VDD=10V) | tPHL |  | 45 | 90 | ns | Tamb=-40℃ to +85℃; CP to Q0; see Figure 4 | 8 |
| HIGH to LOW propagation delay CP to Q0 (VDD=15V) | tPHL |  | 30 | 65 | ns | Tamb=-40℃ to +85℃; CP to Q0; see Figure 4 | 8 |
| HIGH to LOW propagation delay Qn to Qn+1 (VDD=5V) | tPHL |  | 80 | 160 | ns | Tamb=-40℃ to +85℃; Qn to Qn+1 | 8 |
| HIGH to LOW propagation delay Qn to Qn+1 (VDD=10V) | tPHL |  | 30 | 60 | ns | Tamb=-40℃ to +85℃; Qn to Qn+1 | 8 |
| HIGH to LOW propagation delay Qn to Qn+1 (VDD=15V) | tPHL |  | 20 | 40 | ns | Tamb=-40℃ to +85℃; Qn to Qn+1 | 8 |
| HIGH to LOW propagation delay MR to Qn (VDD=5V) | tPHL |  | 180 | 360 | ns | Tamb=-40℃ to +85℃; MR to Qn; see Figure 4 | 8 |
| HIGH to LOW propagation delay MR to Qn (VDD=10V) | tPHL |  | 90 | 180 | ns | Tamb=-40℃ to +85℃; MR to Qn; see Figure 4 | 8 |
| HIGH to LOW propagation delay MR to Qn (VDD=15V) | tPHL |  | 70 | 140 | ns | Tamb=-40℃ to +85℃; MR to Qn; see Figure 4 | 8 |
| LOW to HIGH propagation delay CP to Q0 (VDD=5V) | tPLH |  | 105 | 210 | ns | Tamb=-40℃ to +85℃; CP to Q0; see Figure 4 | 8 |
| LOW to HIGH propagation delay CP to Q0 (VDD=10V) | tPLH |  | 50 | 95 | ns | Tamb=-40℃ to +85℃; CP to Q0; see Figure 4 | 8 |
| LOW to HIGH propagation delay CP to Q0 (VDD=15V) | tPLH |  | 35 | 70 | ns | Tamb=-40℃ to +85℃; CP to Q0; see Figure 4 | 8 |
| LOW to HIGH propagation delay Qn to Qn+1 (VDD=5V) | tPLH |  | 70 | 140 | ns | Tamb=-40℃ to +85℃; Qn to Qn+1 | 8 |
| LOW to HIGH propagation delay Qn to Qn+1 (VDD=10V) | tPLH |  | 25 | 50 | ns | Tamb=-40℃ to +85℃; Qn to Qn+1 | 8 |
| LOW to HIGH propagation delay Qn to Qn+1 (VDD=15V) | tPLH |  | 20 | 40 | ns | Tamb=-40℃ to +85℃; Qn to Qn+1 | 8 |
| transition time (VDD=5V) | tt |  | 60 | 120 | ns | Tamb=-40℃ to +85℃; see Figure 4 | 8 |
| transition time (VDD=10V) | tt |  | 30 | 60 | ns | Tamb=-40℃ to +85℃; see Figure 4 | 8 |
| transition time (VDD=15V) | tt |  | 20 | 40 | ns | Tamb=-40℃ to +85℃; see Figure 4 | 8 |
| pulse width CP=HIGH minimum width (VDD=5V) | tW | 50 | 25 |  | ns | Tamb=-40℃ to +85℃; CP=HIGH; minimum width; see Figure 4 | 8 |
| pulse width CP=HIGH minimum width (VDD=10V) | tW | 25 | 15 |  | ns | Tamb=-40℃ to +85℃; CP=HIGH; minimum width; see Figure 4 | 8 |
| pulse width CP=HIGH minimum width (VDD=15V) | tW | 20 | 10 |  | ns | Tamb=-40℃ to +85℃; CP=HIGH; minimum width; see Figure 4 | 8 |
| pulse width MR=HIGH minimum width (VDD=5V) | tW | 130 | 65 |  | ns | Tamb=-40℃ to +85℃; MR=HIGH; minimum width; see Figure 4 | 8 |
| pulse width MR=HIGH minimum width (VDD=10V) | tW | 95 | 50 |  | ns | Tamb=-40℃ to +85℃; MR=HIGH; minimum width; see Figure 4 | 8 |
| pulse width MR=HIGH minimum width (VDD=15V) | tW | 90 | 45 |  | ns | Tamb=-40℃ to +85℃; MR=HIGH; minimum width; see Figure 4 | 8 |
| recovery time (VDD=5V) | trec | 115 | 60 |  | ns | Tamb=-40℃ to +85℃; MR input; see Figure 4 | 8 |
| recovery time (VDD=10V) | trec | 65 | 35 |  | ns | Tamb=-40℃ to +85℃; MR input; see Figure 4 | 8 |
| recovery time (VDD=15V) | trec | 55 | 25 |  | ns | Tamb=-40℃ to +85℃; MR input; see Figure 4 | 8 |
| maximum frequency (VDD=5V) | fmax | 5 | 10 |  | MHz | Tamb=-40℃ to +85℃; see Figure 4 | 8 |
| maximum frequency (VDD=10V) | fmax | 13 | 25 |  | MHz | Tamb=-40℃ to +85℃; see Figure 4 | 8 |
| maximum frequency (VDD=15V) | fmax | 18 | 35 |  | MHz | Tamb=-40℃ to +85℃; see Figure 4 | 8 |

## CAD (KiCad official)

- Symbol: `CD4020BM`
- Footprint: `Package_SO:SOIC-16_3.9x9.9mm_P1.27mm`
- 3D model: SOP-16 (KiCad packages3D, STEP)
- 3D model files: `cd4020bm-etched.step` / `cd4020bm-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cd4020bm.step` / `cd4020bm.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [lingxingic datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603388815645941760) (14 pp, sha256 `ead288dd45e81231`, retrieved 2026-10-18, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (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](docs/cd4020bm-datasheet.pdf)