IS31CS8973B-ZNLS2
8-BIT MCU WITH 32K FLASH AND 1K
Embedded Microcontrollers
20-TSSOP (0.173", 4.40mm Width)
Active
$2.00 / unit (market reference)
MOQ: 1 pcs
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Parameters
| Parameter | Value |
|---|---|
| Brand | Lumissil Microsystems |
| Model | IS31CS8973B-ZNLS2 |
| Package / Case | 20-TSSOP (0.173", 4.40mm Width) |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Core Processor | 8051 |
| Speed | 16MHz |
| Program Memory Size | 32KB (32K x 8) |
| RAM Size | 1K x 8 |
| Number of I/O | 16 |
| Data Converters | A/D 16x12b SAR; D/A 1x12b |
| Voltage - Supply | 2.2V ~ 5.5V |
| Connectivity | I²C, LINbus, SPI, UART/USART |
| Peripherals | LVD, LVR, POR, PWM, WDT |
| Supplier Device Package | 20-TSSOP |
| RoHS | RoHS |
| Part Status | Active |
Application & Notes
IS31CS8973B-ZNLS2 by Lumissil Microsystems is a 8051 microcontroller widely used in industrial control, motor drives, IoT devices, 3D printer mainboards, and consumer electronics. The 20-TSSOP (0.173", 4.40mm Width) package fits automated SMT assembly. Operating temperature is -40°C ~ 85°C (TA) — verify your application environment. Pin-compatible domestic alternatives include GigaDevice GD32 series and Artery AT32 series — note GD32 ADC specs may differ slightly from ST originals.
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All Technical Specifications
| Speed | 16MHz |
| RAM Size | 1K x 8 |
| Core Size | 8-Bit |
| Peripherals | LVD, LVR, POR, PWM, WDT |
| Connectivity | I²C, LINbus, SPI, UART/USART |
| Number of I/O | 16 |
| Core Processor | 8051 |
| Data Converters | A/D 16x12b SAR; D/A 1x12b |
| Oscillator Type | External, Internal |
| Program Memory Size | 32KB (32K x 8) |
| Program Memory Type | FLASH |
| Voltage - Supply (Vcc/Vdd) | 2.2V ~ 5.5V |
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