Texas Instruments TMS370C742ANT

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Product attributes Property Value
Manufacturer Texas Instruments
Product Series TMS370
Packaging Bulk | Bulk
Core Processor TMS370
Core Size 8-Bit
Speed 5MHz
Connectivity SCI
Peripherals PWM, WDT
Number of I/O 27
Program Memory Size 8KB (8K x 8)
Program Memory Type OTP
EEPROM Size 256 x 8
RAM Size 256 x 8
Voltage - Supply (Vcc/Vdd) 4.5V ~ 5.5V
Data Converters A/D 8x8b
Oscillator Type Internal
Operating Temperature -40°C ~ 105°C (TA)
Grade -
Qualification -
Mounting Type Through Hole
Supplier Device Package 40-PDIP
Package / Case 40-DIP (0.600", 15.24mm)

The Texas Instruments TMS370C742ANT is an 8-bit microcontroller with a TMS370 core running at 5MHz. It operates from 4.5V to 5.5V and includes 8KB of program memory and 256 bytes of RAM. Packaged in a 40-DIP, it provides PWM and WDT for simple embedded control and educational use.

  • Through-hole DIP package: Enables easy prototyping and manual soldering, ideal for low-volume production.
  • 8KB on-chip flash: Sufficient for small control programs without external memory.
  • 5V operation: Simplifies interfacing with legacy TTL logic and sensors.
  • Integrated PWM and WDT: Reduces external component count for basic motor and safety applications.

Educational Microcontroller Kits

The 40-DIP package is breadboard-friendly, allowing students to learn PWM and WDT concepts with a simple 5V supply.

Simple Timer Circuits

In industrial timers, the 8KB flash stores timing presets, and the 5MHz core provides accurate delay generation.

Low-Cost Appliance Controllers

For toasters or coffee makers, the 256B RAM handles basic state machines, while PWM controls heating elements.

Legacy Machine Retrofits

Replaces obsolete 8-bit controllers in old CNC machines, using the DIP package for easy socket replacement.

Battery Backup Systems

With 4.5V minimum, it monitors mains voltage and triggers PWM-based inverter switching during outages.

Hobby Robotics

The DIP package simplifies wiring for small robot controllers, with WDT preventing servo lockups.

Q: What is the core and speed?
A: It uses the TMS370 8-bit core running at 5MHz.
Q: What is the operating voltage?
A: It requires 4.5V to 5.5V, compatible with standard 5V logic.
Q: How much flash and RAM does it have?
A: It has 8KB of program memory and 256 bytes of RAM.
Q: What package is available?
A: It comes in a 40-DIP package with 0.600-inch spacing, ideal for through-hole prototyping.
Q: What peripherals are included?
A: It includes PWM and WDT for basic control and safety functions.
Base Product Number : TMS370C742ANT
256B RAM 5MHz 5V 8-bit 8KB Flash DIP-40 Educational Industrial MCU PWM TMS370 WDT
Q: What is the core and speed?
A: It uses the TMS370 8-bit core running at 5MHz.
Q: What is the operating voltage?
A: It requires 4.5V to 5.5V, compatible with standard 5V logic.
Q: How much flash and RAM does it have?
A: It has 8KB of program memory and 256 bytes of RAM.
Q: What package is available?
A: It comes in a 40-DIP package with 0.600-inch spacing, ideal for through-hole prototyping.
Q: What peripherals are included?
A: It includes PWM and WDT for basic control and safety functions.