Texas Instruments EDSTRG40DILAX

Overview

EDSTRG40DILAX from Texas Instruments is an 8-bit CMOS microcontroller in the TMS370 family, featuring on-chip mask-ROM program memory, 256-byte register file RAM, and integrated peripherals including Timer 1, SCI1 serial interface, and up to 55 digital I/O pins. It operates at 5 V ±10%, supports 0°C to 70°C industrial temperature range (L-grade), and targets real-time embedded control in automotive instrumentation and industrial motor control systems.

For engineers reviewing the EDSTRG40DILAX datasheet, EDSTRG40DILAX pinout, EDSTRG40DILAX application, or EDSTRG40DILAX equivalent, this page delivers verified technical context, package mapping, functional pin roles, key timing and memory parameters, and two validated alternative parts for design continuity and sourcing flexibility.

Technical Context

The EDSTRG40DILAX implements a register-to-register CPU architecture with single-cycle register file access and an 8-bit internal bus shared by memory and peripherals. Its peripheral set includes a 16-bit Timer 1 with PWM output, a 3-pin full-duplex asynchronous SCI1 (up to 156 Kbps), and programmable digital I/O ports supporting bit-level direction control.

It uses mask-programmable ROM for fixed firmware, includes standby RAM for data retention during power-off, and supports two interrupt levels with edge-selectable triggers. System integrity is enforced via watchdog timer, oscillator fault detection, and privileged mode lockout - all confirmed for the TMS370Cx4x subfamily to which EDSTRG40DILAX belongs.

Key Specifications

Pinout & Package

EDSTRG40DILAX is packaged in a 40-pin dual in-line (DIL) plastic through-hole package with 0.6-inch width, per Mechanical Data Section 4 of SPND005. Pin assignments follow the TMS370Cx4x subfamily layout, with Ports A–D and G–H defined per Table 3 ('x4x – 40 pins: Port A = 8 bits, Port B = 3 bits, Port C = 5 bits).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 8-bit microcontroller applications.

Compared with EDSTRG40DILAX, TMS370C042A offers field-reprogrammable EPROM for development iteration, while TMS370C342A extends operational range to –40°C to 85°C - both maintain identical instruction set, register mapping, and peripheral timing, enabling drop-in replacement where firmware and thermal requirements align.

Availability

EDSTRG40DILAX is available at Aetrix Electronics and suitable for automotive instrumentation, industrial motor control, computer peripheral interface, and telecom line card monitoring requiring stable component supply across long-lifecycle programs.

Supply support for EDSTRG40DILAX includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor company founded in 1930, specializing in analog, embedded processing, and digital signal technologies with broad industrial and automotive reach.

EDSTRG40DILAX belongs to the TMS370Cx4x subfamily - designed specifically for cost-sensitive, high-reliability real-time control applications where mask-programmed firmware, deterministic timing, and minimal external components are essential.

FAQ

What is the package type and pin count of EDSTRG40DILAX?

EDSTRG40DILAX uses a 40-pin dual in-line (DIL) plastic through-hole package with 0.6-inch width, as documented in Section 4 (Mechanical Data) of the TMS370 Data Book SPND005. This package supports standard wave-soldering processes and provides mechanical stability for industrial board-level assembly. The pinout matches the TMS370Cx4x subfamily layout, including dedicated SCI1TX/SCI1RX and Timer 1 PWM output pins.

Does EDSTRG40DILAX include on-chip EEPROM or flash memory?

No, EDSTRG40DILAX does not include on-chip EEPROM or flash memory. As a member of the TMS370Cx4x subfamily, it relies on mask-programmed ROM for program storage and uses static RAM plus a 256-byte register file for volatile data. Data EEPROM is explicitly excluded from the Cx4x group per the TMS370 Data Book - devices like TMS370Cx32 or TMS370Cx36 offer 256–512 bytes of EEPROM, but EDSTRG40DILAX does not support in-circuit reprogramming of non-volatile data.

What serial communication interfaces are supported by EDSTRG40DILAX?

EDSTRG40DILAX supports SCI1 - a 3-pin full-duplex asynchronous serial interface capable of up to 156 Kbps. It does not include SCI2 (2-pin) or SPI modules, as those are assigned to other TMS370 subfamilies. SCI1 uses Port C pins (PC0–PC2) for Tx, Rx, and clock, and is programmable for data format, parity, and stop bits. No isosynchronous mode is available on EDSTRG40DILAX, since that feature is restricted to SCI1 in higher-pin-count Cx5x/Cx6x devices per the Data Book.

Is EDSTRG40DILAX suitable for automotive applications requiring AEC-Q100 qualification?

No, EDSTRG40DILAX is not AEC-Q100 qualified. It is rated for 0°C to 70°C (L-grade) and intended for commercial and industrial use, not automotive safety-critical systems. The TMS370 family documentation explicitly excludes life-support and critical automotive applications, and no AEC-Q100 test reports or automotive-grade screening are referenced for EDSTRG40DILAX or the Cx4x subfamily. For automotive use, TI recommends newer qualified platforms such as the C2000™ or MSP430™ families.

What development tools are compatible with EDSTRG40DILAX?

EDSTRG40DILAX is supported by TI's legacy TMS370 development ecosystem: the TMS370 assembler, optimizing C compiler (ANSI C), C source debugger, and XDS in-circuit emulator. Hardware tools include the CDT370 Compact Development Tool and third-party BP Microsystems programmers. All tools target IBM-compatible PCs and assume mask-ROM firmware - no in-system programming capability exists for EDSTRG40DILAX itself, so development requires EPROM-based variants like TMS370C042A for iterative testing before final mask-ROM production.