# CD4556BE

**lingxingic** · Signal Switches, Multiplexers, Decoders · DIP-16

CD4556BE from lingxingic, in a DIP-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 | EA | input | Enable input for decoder A; per the function table, EA LOW enables the decoder and EA HIGH forces outputs O0A to O3A HIGH. |
| 2 | A0A | input | Address input A0 for decoder A, selecting which of outputs O0A to O3A goes LOW together with A1A. |
| 3 | A1A | input | Address input A1 for decoder A, selecting which of outputs O0A to O3A goes LOW together with A0A. |
| 4 | O0A | output | Active-LOW output 0 of decoder A, driven LOW when EA is LOW and the address A1A/A0A is 00. |
| 5 | O1A | output | Active-LOW output 1 of decoder A, driven LOW when EA is LOW and the address A1A/A0A is 01. |
| 6 | O2A | output | Active-LOW output 2 of decoder A, driven LOW when EA is LOW and the address A1A/A0A is 10. |
| 7 | O3A | output | Active-LOW output 3 of decoder A, driven LOW when EA is LOW and the address A1A/A0A is 11. |
| 8 | VSS | power_in | Ground supply voltage, the 0 V reference for all voltages on the device. |
| 9 | O3B | output | Active-LOW output 3 of decoder B, driven LOW when EB is LOW and the address A1B/A0B is 11. |
| 10 | O2B | output | Active-LOW output 2 of decoder B, driven LOW when EB is LOW and the address A1B/A0B is 10. |
| 11 | O1B | output | Active-LOW output 1 of decoder B, driven LOW when EB is LOW and the address A1B/A0B is 01. |
| 12 | O0B | output | Active-LOW output 0 of decoder B, driven LOW when EB is LOW and the address A1B/A0B is 00. |
| 13 | A1B | input | Address input A1 for decoder B, selecting which of outputs O0B to O3B goes LOW together with A0B. |
| 14 | A0B | input | Address input A0 for decoder B, selecting which of outputs O0B to O3B goes LOW together with A1B. |
| 15 | EB | input | Enable input for decoder B; per the function table, EB LOW enables the decoder and EB HIGH forces outputs O0B to O3B HIGH. |
| 16 | VDD | power_in | Supply voltage, recommended range 3 V to 15 V referenced to VSS (absolute maximum +18 V). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | lingxingic |
| Package | DIP-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 |  | 5 |
| input voltage | VI | -0.5 |  |  | V | all inputs; max printed as VDD+0.5 | 5 |
| DC input current | IIK | -10 |  | 10 | mA | any one input | 5 |
| storage temperature | Tstg | -65 |  | 150 | ℃ |  | 5 |
| soldering temperature | TL |  |  | 245 | ℃ | 10s, DIP | 5 |
| supply voltage | VDD | 3 |  | 15 | V |  | 6 |
| ambient temperature | Tamb | -40 |  | 125 | ℃ | in free air | 6 |
| HIGH-level input voltage | VIH | 3.5 |  |  | V | Tamb=-40℃ to +125℃; VDD=5V | 7 |
| HIGH-level input voltage | VIH | 7 |  |  | V | Tamb=-40℃ to +125℃; VDD=10V | 7 |
| HIGH-level input voltage | VIH | 11 |  |  | V | Tamb=-40℃ to +125℃; VDD=15V | 7 |
| LOW-level input voltage | VIL |  |  | 1.5 | V | Tamb=-40℃ to +125℃; VDD=5V | 7 |
| LOW-level input voltage | VIL |  |  | 3 | V | Tamb=-40℃ to +125℃; VDD=10V | 7 |
| LOW-level input voltage | VIL |  |  | 4 | V | Tamb=-40℃ to +125℃; VDD=15V | 7 |
| HIGH-level output voltage | VOH | 4.95 |  |  | V | Tamb=-40℃ to +125℃; VDD=5V; /IO/<1uA | 7 |
| HIGH-level output voltage | VOH | 9.95 |  |  | V | Tamb=-40℃ to +125℃; VDD=10V; /IO/<1uA | 7 |
| HIGH-level output voltage | VOH | 14.95 |  |  | V | Tamb=-40℃ to +125℃; VDD=15V; /IO/<1uA | 7 |
| LOW-level output voltage | VOL |  |  | 0.05 | V | Tamb=-40℃ to +125℃; VDD=5V; /IO/<1uA | 7 |
| HIGH-level output current | IOH |  |  | -0.3 | mA | Tamb=-40℃ to +125℃; VDD=5V; VO=4.6V | 7 |
| HIGH-level output current | IOH |  |  | -1.15 | mA | Tamb=-40℃ to +125℃; VDD=5V; VO=2.5V | 7 |
| HIGH-level output current | IOH |  |  | -0.45 | mA | Tamb=-40℃ to +125℃; VDD=10V; VO=9.5V | 7 |
| HIGH-level output current | IOH |  |  | -1.4 | mA | Tamb=-40℃ to +125℃; VDD=15V; VO=13.5V | 7 |
| LOW-level output current | IOL | 0.29 |  |  | mA | Tamb=-40℃ to +125℃; VDD=5V; VO=0.4V | 7 |
| LOW-level output current | IOL | 0.38 |  |  | mA | Tamb=-40℃ to +125℃; VDD=10V; VO=0.5V | 7 |
| LOW-level output current | IOL | 1.2 |  |  | mA | Tamb=-40℃ to +125℃; VDD=15V; VO=1.5V | 7 |
| input leakage current | II | -4 |  | 4 | uA | Tamb=-40℃ to +125℃; VDD=15V; VI=15V or GND | 7 |
| supply current | IDD |  |  | 7.5 | uA | Tamb=-40℃ to +125℃; VDD=5V; VI=5V or GND; IO=0A | 7 |
| supply current | IDD |  |  | 15 | uA | Tamb=-40℃ to +125℃; VDD=10V; VI=10V or GND; IO=0A | 7 |
| supply current | IDD |  |  | 30 | uA | Tamb=-40℃ to +125℃; VDD=15V; VI=15V or GND; IO=0A | 7 |
| HIGH to LOW propagation delay time An to Qn | tPHL |  |  | 305 | ns | Tamb=-40℃ to +125℃; VDD=5V; CL=50pF; see Figure 4 | 8 |
| HIGH to LOW propagation delay time An to Qn | tPHL |  |  | 120 | ns | Tamb=-40℃ to +125℃; VDD=10V; CL=50pF; see Figure 4 | 8 |
| HIGH to LOW propagation delay time An to Qn | tPHL |  |  | 78 | ns | Tamb=-40℃ to +125℃; VDD=15V; CL=50pF; see Figure 4 | 8 |
| HIGH to LOW propagation delay time En to Qn | tPHL |  |  | 280 | ns | Tamb=-40℃ to +125℃; VDD=5V; CL=50pF; see Figure 4 | 8 |
| HIGH to LOW propagation delay time En to Qn | tPHL |  |  | 108 | ns | Tamb=-40℃ to +125℃; VDD=10V; CL=50pF; see Figure 4 | 8 |
| HIGH to LOW propagation delay time En to Qn | tPHL |  |  | 72 | ns | Tamb=-40℃ to +125℃; VDD=15V; CL=50pF; see Figure 4 | 8 |
| LOW to HIGH propagation delay time An to Qn | tPLH |  |  | 42 | ns | Tamb=-40℃ to +125℃; VDD=5V; CL=50pF; see Figure 4 | 8 |
| LOW to HIGH propagation delay time An to Qn | tPLH |  |  | 102 | ns | Tamb=-40℃ to +125℃; VDD=10V; CL=50pF; see Figure 4 | 8 |
| LOW to HIGH propagation delay time An to Qn | tPLH |  |  | 72 | ns | Tamb=-40℃ to +125℃; VDD=15V; CL=50pF; see Figure 4 | 8 |
| LOW to HIGH propagation delay time En to Qn | tPLH |  |  | 245 | ns | Tamb=-40℃ to +125℃; VDD=5V; CL=50pF; see Figure 4 | 8 |
| LOW to HIGH propagation delay time En to Qn | tPLH |  |  | 96 | ns | Tamb=-40℃ to +125℃; VDD=10V; CL=50pF; see Figure 4 | 8 |
| LOW to HIGH propagation delay time En to Qn | tPLH |  |  | 72 | ns | Tamb=-40℃ to +125℃; VDD=15V; CL=50pF; see Figure 4 | 8 |
| transition time | tTHL, tTLH |  |  | 144 | ns | Tamb=-40℃ to +125℃; VDD=5V; see Figure 4 | 8 |
| transition time | tTHL, tTLH |  |  | 72 | ns | Tamb=-40℃ to +125℃; VDD=10V; see Figure 4 | 8 |
| transition time | tTHL, tTLH |  |  | 48 | ns | Tamb=-40℃ to +125℃; VDD=15V; see Figure 4 | 8 |

## CAD (KiCad official)

- Symbol: `CD4556BE`
- Footprint: `Package_DIP:DIP-16_W7.62mm`
- 3D model: DIP-16 (KiCad packages3D, STEP)
- 3D model files: `cd4556be-etched.step` / `cd4556be-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cd4556be.step` / `cd4556be.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/8603388813414572032) (14 pp, sha256 `d15c2f194bbc8c74`, retrieved 2026-10-15, 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/cd4556be-datasheet.pdf)