Overview
The TXMP is a SO-DIMM Computer-on-Module from Ka-Ro electronics, part of the TX Family, based on the STM32MP157 from STMicroelectronics. It pairs dual Arm Cortex-A7 application cores at 650 MHz with a Cortex-M4 real-time core and a Vivante 3D GPU, making it ideal for industrial HMI, control and IoT gateway applications.
Key Features
Processor
STM32MP157
Dual Cortex-A7 @ 650 MHz
Cortex-M4 @ 209 MHz
Memory
512 MB DDR3L
4 GB eMMC
Temperature Range
Industrial Grade
-25°C to +85°C
Form Factor
SO-DIMM (DIMM200 connector)
26 mm SO-DIMM
Display & Vision
24-bit RGB
MIPI-DSI 2-lane
Vivante 3D GPU OpenGL ES 2.0
OS Support
Linux
Ready for application development
Connectivity
Available Variants
TXMP family (STM32MP157C — pinout variants) — compare order codes side-by-side:
| Part Number | TXMP-1570 (pins 52,56 swapped) | TXMP-1571 (TX standard) |
|---|---|---|
| Part Name | TXMP/157C/512S/4GF/E85 | TXMP/157C/512S/4GF/E85/SDOK |
| Processor | STM32MP157C | STM32MP157C |
| SDRAM | 512 MiB | 512 MiB |
| Flash | 4 GB eMMC | 4 GB eMMC |
| Display-IF | 24-bit RGB + 2-lane MIPI-DSI | 24-bit RGB + 2-lane MIPI-DSI |
| Temperature | -25°C to +85°C | -25°C to +85°C |
Note: TXMP-1570 has SDIO pins 52 and 56 swapped relative to the rest of the TX family. TXMP-1571 uses the standard TX pinout — recommended for new designs.
Design Advantages
Pin-Compatible TXCOM Design
Standard TXCOM pinout across the TX Family enables a scalable platform strategy. Design one baseboard and migrate between processors as application requirements evolve.
Compact SO-DIMM Form Factor
The DIMM200 SO-DIMM connector provides a compact, socketed solution that can be replaced or upgraded in the field without soldering.
Cortex-A + Cortex-M Heterogeneous
Dual Cortex-A7 application cores plus a Cortex-M4 real-time core deliver Linux + RTOS heterogeneous computing for industrial control and HMI.
10-Year Longevity
STMicroelectronics 10-year longevity program plus industrial-grade components ensure your product design remains in production for years.
Electrical Characteristics
| Parameter | Min | Max |
|---|---|---|
| Power Supply (VIN) | 3.3V | 5V |
| I/O Voltage | - | 3.3V |
| Operating Temperature | -25°C | +85°C |
Documentation
Download the full TXMP datasheet for complete specifications, pinout details, and design guidelines.
Download Datasheet (PDF)