# HT16K33A\-28SSOP (Component)

## Description

SSOP\-28 Display Drivers 

HT16K33A\-28SSOP is a RAM\-mapped, multi\-function LED controller/driver IC with an I²C interface, supporting up to 128 display points in a 16×8 configuration and up to 13×3 matrix key scanning\. It operates from 4\.5–5\.5 V, includes an internal RC oscillator and 16\-step dimming control, and is suitable for LED displays, digital instruments, clocks, counters, and control panels in a 28\-pin SSOP package\.

\#HOLTEK \#HT16K33A \#LEDDriver \#LEDController \#I2C \#Keyscan \#DisplayDriver \#SSOP28

## Component Details

- **Owner:** silicon\-yard
- **Created:** 8/28/2026
- **Last Updated:** 8/28/2026
- **Visibility:** Public
- **Package or Case Code:** 28\-SSOP
- **Datasheet URL:** https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/user\-uploaded/ef8dc85f29844df9a1489759cab3a0d24ca96b68dfec7412866dd4030dcbd482\.pdf
- **Manufacturer Part Number:** HT16K33A\-28SSOP
- **Manufacturer Name:** Holtek
- **Part Type:** Integrated Circuit
- **Symbol Style:** parametric\-v1
- **LCSC Part Number:** C5444738
- **License:** https://creativecommons\.org/licenses/by/4\.0/
- **Used in:** 1 project

## Distributor Pricing (qty 1)

*Pricing shown for quantity 1. For price breaks and other quantities, open in Flux.*

| Distributor | Unit Price (qty 1) | Stock |
|------------|--------------------|-------|
| [LCSC](https://www.lcsc.com/product-detail/C5444738.html) | $0\.589 | 2\.5K |

- **Part Type:** Integrated Circuits
- **Sub-Type:** Logic
- **MPN:** HT16K33A\-28SSOP
- **Mount Type:** Panel
- **Package / Case Code:** 16\-SSOP
- **Pin Count:** 28
- **Logic Function:** AND
## Pins

| Pin | Name | Type |
|-----|------|------|
| 1 | VSS |  |
| 2 | COM0/AD |  |
| 3 | COM1/KS0 |  |
| 4 | COM2/KS1 |  |
| 5 | COM3/KS2 |  |
| 6 | COM4 |  |
| 7 | COM5 |  |
| 8 | COM6 |  |
| 9 | COM7 |  |
| 10 | ROW15/K13/INT |  |
| 11 | ROW14/K12 |  |
| 12 | ROW13/K11 |  |
| 13 | ROW12/K10 |  |
| 14 | ROW11/K9 |  |
| 15 | ROW10/K8 |  |
| 16 | ROW9/K7 |  |
| 17 | ROW8/K6 |  |
| 18 | ROW7/K5 |  |
| 19 | ROW6/K4 |  |
| 20 | ROW5/K3 |  |
| 21 | ROW4/K2 |  |
| 22 | ROW3/K1 |  |
| 23 | ROW2/A0 |  |
| 24 | ROW1/A1 |  |
| 25 | ROW0/A2 |  |
| 26 | SCL |  |
| 27 | SDA |  |
| 28 | VDD |  |

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*Generated from [https://flux\.ai/silicon\-yard/ht16k33a\-28ssop\~td](https://flux.ai/silicon-yard/ht16k33a-28ssop~td)*