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Texas Instruments EDSTRG40DIL
- Part No.:
- EDSTRG40DIL
- Manufacturer:
- Texas Instruments
- Category:
- Accessories
- Package:
- Datasheet:
-
EDSTRG40DIL.pdf
- Description:
- EDSTRG40DIL
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Product details
Overview
EDSTRG40DIL 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 up to 55 digital I/O pins. It includes Timer 1 (16-bit with PWM), dual 16-bit timers (T2A/T2B), watchdog timer, SCI1/SCI2 serial interfaces, SPI, and an 8-bit ADC with 4–8 input channels depending on package. It targets automotive climate control and industrial motor control systems requiring real-time deterministic response.
For engineers reviewing the EDSTRG40DIL datasheet, EDSTRG40DIL pinout, EDSTRG40DIL application, or EDSTRG40DIL equivalent, key selection considerations include its 40-pin DIL package, 5 V ±10% operation, 0°C to 70°C temperature grade (L), 5 MHz max SYSCLK with divide-by-4 oscillator, and software compatibility across TMS370 subfamilies for legacy code reuse.
Technical Context
The EDSTRG40DIL implements a register-to-register CPU architecture enabling single-cycle access to its 256-byte register file. Its peripheral set is fixed per the 'x4x subfamily: 4-channel ADC1 (in 40-pin variants), SCI1 (3-pin, asynchronous up to 156 Kbps + isosynchronous up to 2.5 Mbps), SCI2 (2-pin, asynchronous only), and SPI (synchronous up to 2.5 Mbps).
It supports two programmable interrupt levels with edge-selectable detection, power-reduction standby/halt modes, and oscillator fault detection. Memory-mapped I/O allows direct addressing of ports A–D, with Port A (8-bit) and Port B (3-bit) active in the 40-pin DIL configuration per Table 3.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Architecture | 8-bit register-to-register; enables single-bus-cycle register file access for deterministic timing |
| Program Memory | Mask-ROM; factory-programmed for high-volume production, no field reprogramming |
| RAM Size | 256-byte register file + additional RAM; used as working registers and stack in one bus cycle |
| ADC Channels | 4-channel ADC1; supports analog sensing in 40-pin packages like EDSTRG40DIL for sensor interfacing |
| Max SYSCLK | 5 MHz with divide-by-4 oscillator; yields 1.25 MHz internal clock, limiting instruction throughput but ensuring stability |
| I/O Pins | Up to 55 total; EDSTRG40DIL uses 40-pin DIL with Ports A (8-bit), B (3-bit), C (5-bit), D (5-bit) configured per data sheet |
| Operating Temp | 0°C to 70°C (L grade); suitable for commercial/industrial environments, not extended automotive |
| Supply Voltage | 5 V ±10%; requires stable 4.5–5.5 V rail, no internal voltage regulation |
Pinout & Package
EDSTRG40DIL is housed in a 40-pin dual in-line (DIL) plastic package with 0.6-inch width, compliant with JEDEC MS-001. Pin spacing is 0.1 inch, with lead finish Sn/Pb.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply | Primary 5 V supply input; must be decoupled locally to suppress noise on digital core |
| VSS | Ground | Digital ground reference; separate analog ground not provided - shared return path |
| XTAL1/CLKIN | Oscillator input | Accepts external crystal (1–5 MHz) or TTL clock; drives internal divide-by-4 oscillator circuit |
| XTAL2 | Oscillator output | Drives external crystal in parallel-resonant mode; unused when external clock applied to XTAL1 |
| P0.0–P0.7 (Port A) | Bi-directional I/O | 8-bit port; bit-configurable as input/output; default reset state is input with weak pull-up |
| P1.0–P1.2 (Port B) | Bi-directional I/O | 3-bit port; supports timer capture, SCI1/SCI2, and SPI signals depending on function select bits |
| P2.0–P2.4 (Port C) | Bi-directional I/O | 5-bit port; includes ADC input channels AN0–AN3 and PACT signals in 'x4x devices |
| P3.0–P3.4 (Port D) | Bi-directional I/O | 5-bit port; provides SCI1 Tx/Rx, SPI SCLK/MOSI/MISO, and Timer 1 PWM outputs |
| RESET | Active-low reset | Asynchronous reset input; must be held low ≥16 SYSCLK cycles for valid reset assertion |
| INT0/INT1 | Interrupt inputs | Two dedicated external interrupt pins; support rising/falling-edge or level-sensitive triggering |
Key Features
| Feature | Design Value |
|---|---|
| Software compatibility across TMS370 subfamilies | Enables reuse of existing firmware across 'x0x–'xCx devices without modification, reducing migration effort |
| On-chip 256-byte register file RAM | Provides zero-wait-state working memory for time-critical ISR execution and stack operations |
| Timer 1 with PWM output | Generates hardware-controlled pulse-width modulated signals for motor speed or LED brightness control |
| Dual 16-bit timers (T2A/T2B) | Support simultaneous event counting, input capture, and compare-based waveform generation without CPU load |
| SCI1 with isosynchronous mode | Enables deterministic serial communication up to 2.5 Mbps for time-sensitive control loops |
| Watchdog timer with programmable timeout | Prevents system lockup by forcing hardware reset if firmware fails to service it within defined interval |
Applications
| Automotive Climate Control | Industrial Motor Drive |
|---|---|
Use Scenario: Regulating cabin temperature via feedback from NTC thermistors and controlling DC blower motor speed. IC Role / Device Role / Timing Role: Central controller executing PID loop at 100 Hz, reading ADC channels, generating PWM for motor driver, and managing user interface via SCI. Use Value: Integrated ADC, PWM, and SCI eliminate need for external signal conditioning and UART ICs, reducing BOM count and board space. | Use Scenario: Closed-loop speed control of a 24 V brushed DC motor in packaging machinery using hall-effect encoder feedback. IC Role / Device Role / Timing Role: Real-time motion controller sampling encoder pulses via Timer 1 input capture, computing error, and updating 8-bit PWM duty cycle every 5 ms. Use Value: 200 ns timer resolution at 5 MHz SYSCLK ensures precise 10 kHz PWM frequency with 0.4% duty cycle granularity. |
| Computer Peripheral Interface | Telecom Line Card Monitoring |
Use Scenario: Managing keyboard matrix scan and PS/2 protocol translation in embedded terminal hardware. IC Role / Device Role / Timing Role: I/O expander and protocol handler using Port A/B for matrix scanning and SCI2 for host communication. Use Value: Bit-configurable ports and double-buffered SCI2 Rx/Tx enable reliable 1200–9600 bps host link with minimal firmware overhead. | Use Scenario: Supervising power sequencing, voltage monitoring, and fault reporting on a telecom line card with multiple DC rails. IC Role / Device Role / Timing Role: System monitor reading analog voltages via ADC1, asserting RESET on undervoltage, and transmitting alarms over SCI1. Use Value: On-chip watchdog and oscillator fault detection provide autonomous safety response independent of host processor. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TMS370C040A | Same 40-pin DIL package, identical 'x4x peripheral set, but mask-ROM programmed at factory with different firmware image | No functional difference; differs only in programmed application code - not interchangeable without reflashing tooling | Select EDSTRG40DIL when TI's standard calibration or bootloader firmware is required; TMS370C040A for custom-masked production units |
| TMS370C340A | Same pinout and peripherals, but EPROM-based (windowed ceramic) instead of mask-ROM; requires UV erasure and programmer for updates | Suitable for prototyping and low-volume validation; lacks production-readiness of mask-ROM's permanent program storage | Choose TMS370C340A for development and debug; EDSTRG40DIL for final production where code immutability and cost matter |
Compared with TMS370C040A, EDSTRG40DIL shares identical hardware but ships with TI's validated firmware image; versus TMS370C340A, it trades field-programmability for lower unit cost and guaranteed code integrity in volume manufacturing.
Availability
EDSTRG40DIL is available at Aetrix Electronics and suitable for automotive climate control, industrial motor drive, and telecom line card monitoring requiring stable component supply and long-term obsolescence management.
Supply support for EDSTRG40DIL 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 silicon technology with broad industrial and automotive focus.
EDSTRG40DIL belongs to the TMS370 8-bit microcontroller product line, designed for deterministic real-time control in cost-sensitive embedded systems where software compatibility and peripheral integration reduce system complexity.
FAQ
What is the maximum operating frequency of the EDSTRG40DIL?
The EDSTRG40DIL supports a maximum system clock (SYSCLK) frequency of 5 MHz when using the internal divide-by-4 oscillator circuit. This corresponds to a 1.25 MHz internal CPU clock. The device does not support PLL-based clock multiplication; higher frequencies require external clock injection into XTAL1, but timing specifications are only guaranteed up to 5 MHz SYSCLK per the March 1997 data book.
Does the EDSTRG40DIL include on-chip EEPROM for data storage?
No, the EDSTRG40DIL does not include on-chip EEPROM. As a member of the TMS370Cx4x subfamily with mask-ROM program memory, it relies on external non-volatile storage or battery-backed RAM for persistent data. Data EEPROM was only offered in select subfamilies including 'x32, 'x36, 'x5x, 'x6x, 'x7x, and 'xBx - not in 'x4x devices like EDSTRG40DIL.
Which ADC module is integrated into the EDSTRG40DIL and how many input channels does it support?
The EDSTRG40DIL integrates ADC1, the 8-bit successive-approximation analog-to-digital converter module specified for the 'x4x subfamily. In its 40-pin DIL package configuration, ADC1 provides four analog input channels (AN0–AN3), mapped to Port C pins P2.0–P2.3. Unused ADC input pins may be reconfigured as general-purpose digital I/O.
Is the EDSTRG40DIL pin-compatible with other TMS370 devices in the 40-pin DIL package?
Yes, the EDSTRG40DIL shares the same 40-pin DIL mechanical footprint and pinout definition as other TMS370 'x4x devices including TMS370C040A and TMS370C340A. All 'x4x 40-pin variants use identical Port A–D assignments, power/ground locations, and peripheral signal mappings per Table 3 and the functional block diagram in SPND005.
What development tools are supported for programming and debugging the EDSTRG40DIL?
Texas Instruments' full TMS370 development suite supports the EDSTRG40DIL, including the TMS370 assembler, optimizing C compiler, linker, and C source debugger running on IBM-compatible PCs. Hardware tools include the XDS extended development support in-circuit emulator and CDT370 compact development tool, both modular and configurable for 'x4x devices. BP Microsystems' third-party programmers also support EPROM variants, though EDSTRG40DIL's mask-ROM requires factory programming.
EDSTRG40DIL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Packaging:
- Box
- Product Status:
- Obsolete
- Accessory Type:
- Adapter Cable
- For Use With/Related Products:
- TMS370
EDSTRG40DIL FAQ
1.How can I place an order for EDSTRG40DIL through Aetrix?
Please submit a Request for Quotation (RFQ) for EDSTRG40DIL on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for EDSTRG40DIL reliable?
The price and inventory of EDSTRG40DIL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for EDSTRG40DIL is usually 5 days.
3.What payment methods are accepted for EDSTRG40DIL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for EDSTRG40DIL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for EDSTRG40DIL?
EDSTRG40DIL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your EDSTRG40DIL order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for EDSTRG40DIL?
For technical support, including EDSTRG40DIL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your EDSTRG40DIL requirements.
6.How does Aetrix verify that EDSTRG40DIL is sourced from the original manufacturer or authorized distributors?
All EDSTRG40DIL products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that EDSTRG40DIL meets industry standards.
7.What is the process for return or replacement of EDSTRG40DIL?
All EDSTRG40DIL units undergo pre-shipment inspection (PSI). If there is an issue with EDSTRG40DIL, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The EDSTRG40DIL part is unused and in its original packaging.
Return procedure for EDSTRG40DIL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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