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Texas Instruments EDSTRG28PLCC02
- Part No.:
- EDSTRG28PLCC02
- Manufacturer:
- Texas Instruments
- Category:
- Accessories
- Package:
- Datasheet:
-
EDSTRG28PLCC02.pdf
- Description:
- EDSTRG28PLCC02
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Product details
Overview
EDSTRG28PLCC02 from Texas Instruments is an 8-bit CMOS microcontroller in the TMS370 family, featuring on-chip EPROM program memory, 256-byte register file RAM, and integrated ADC2 (4-channel, 8-bit) for analog sensing. It operates at up to 5 MHz SYSCLK with divide-by-4 oscillator mode, supports two programmable interrupt levels, and targets embedded control in industrial temperature range (–40°C to 85°C). It is packaged in 28-pin PLCC.
For engineers reviewing the EDSTRG28PLCC02 datasheet, EDSTRG28PLCC02 pinout, EDSTRG28PLCC02 application, or EDSTRG28PLCC02 equivalent, key selection considerations include its 28-pin PLCC footprint, ADC2-based analog interface capability, software compatibility within the TMS370Cx subfamilies, and OTP EPROM program memory configuration for small-volume production.
Technical Context
The EDSTRG28PLCC02 belongs to the TMS370CxCx subfamily - specifically a 28-pin variant with ADC2 (4-channel, 8-bit) and no data EEPROM. Its architecture uses a register-to-register CPU with single-cycle register file access and an 8-bit internal bus interfacing memory and peripherals.
It implements Timer 1 (16-bit with prescaler, input capture, PWM), SCI2 (2-pin, asynchronous UART up to 156 Kbps), SPI (synchronous master/slave interface), and digital I/O ports mapped across Ports A–D. External memory expansion is not supported due to its 28-pin PLCC package limiting port availability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | 8-bit register-to-register architecture with 256-byte register file accessible in one bus cycle |
| Program Memory | EPROM (one-time programmable in plastic package), size not specified for this variant but consistent with TMS370CxCx family's 2K–8K range |
| ADC Module | ADC2: 4-channel, 8-bit successive-approximation converter; channels selectable via software-controlled input mux |
| Operating Voltage | 5 V ±10% - requires stable single-supply rail; no internal voltage regulation |
| Temperature Range | –40°C to +85°C (A-grade), suitable for industrial environments without forced cooling |
| Max SYSCLK | 5 MHz with divide-by-4 oscillator mode; no PLL support per TMS370CxCx specification |
| I/O Pins | Up to 22 programmable digital I/O lines across Ports A–D; bit-configurable as input or output |
Pinout & Package
EDSTRG28PLCC02 is housed in a 28-pin Plastic Leaded Chip Carrier (PLCC) package with J-lead configuration, 0.050" lead pitch, and body size 0.490" × 0.490". Pin 1 is marked by a notch on the top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply | Primary 5-V supply connection; decoupling capacitor required near pin |
| VSS | Ground | Digital ground reference; must be low-impedance connection to system GND plane |
| XTAL1/CLKIN | Oscillator input | Accepts external crystal (1–5 MHz) or TTL/CMOS clock source for SYSCLK generation |
| XTAL2/CLKOUT | Oscillator output | Drives external crystal; also outputs divided SYSCLK when used as clock source |
| P0.0–P0.7 | Port 0 bidirectional I/O | 8-bit port with internal pull-ups; configurable per-bit as input/output; shares pins with address/data bus in larger packages (not used here) |
| P1.0–P1.7 | Port 1 bidirectional I/O | 8-bit port; includes ADC2 channel inputs on P1.0–P1.3; other bits serve general-purpose I/O |
| P2.0–P2.5 | Port 2 bidirectional I/O | 6-bit port; P2.0 = /RESET input; P2.1 = SCI2 RX; P2.2 = SCI2 TX; remaining bits are GPIO |
| /INT0, /INT1 | External interrupt inputs | Active-low, edge-triggered interrupts supporting rising/falling-edge detection per software config |
| /RD, /WR | Read/write strobes | Control signals for external memory interface - unused in 28-pin PLCC configuration |
Key Features
| Feature | Design Value |
|---|---|
| ADC2 integration | On-chip 4-channel, 8-bit analog-to-digital converter eliminates need for external ADC in sensor-interface designs |
| SCI2 UART | 2-pin full-duplex asynchronous serial interface (up to 156 Kbps) enables host communication with minimal pin count |
| Timer 1 PWM capability | Hardware-generated pulse-width modulated outputs reduce CPU load in motor or LED dimming control |
| Software-compatible architecture | Binary-level instruction set compatibility across TMS370 subfamilies simplifies firmware migration and reuse |
| Industrial temperature grade | Rated for –40°C to +85°C operation, enabling deployment in uncontrolled ambient environments |
Applications
| Motor Control Interface | Industrial Sensor Node |
|---|---|
Use Scenario: Controlling brushed DC motor speed and direction in HVAC blower assemblies using feedback from tachometer and thermistor. IC Role / Device Role / Timing Role: EDSTRG28PLCC02 executes closed-loop PID logic, reads analog thermistor and tachometer signals via ADC2, and generates PWM drive signals using Timer 1. Use Value: Integrates signal acquisition, computation, and actuation in a single 28-pin IC - reducing BOM count and PCB area versus discrete MCU + ADC + driver solutions. | Use Scenario: Local data acquisition node monitoring pressure, flow, and temperature in factory-floor pneumatic systems. IC Role / Device Role / Timing Role: EDSTRG28PLCC02 samples up to four analog sensors via ADC2, buffers readings in register file RAM, and transmits via SCI2 UART to a central PLC. Use Value: Eliminates external level-shifting or signal-conditioning circuitry; direct 5-V-tolerant I/O interfaces with industrial transducers. |
| Legacy Automotive Subsystem | Small-Appliance Controller |
Use Scenario: Seat-position memory module in mid-1990s vehicles, storing and recalling motor positions using nonvolatile settings. IC Role / Device Role / Timing Role: EDSTRG28PLCC02 reads potentiometer inputs, drives seat-motor H-bridge drivers, and stores position offsets in external EEPROM (via SPI). Use Value: Matches legacy automotive ECU voltage and timing specs (5 V, 5 MHz max); software-compatible with existing TMS370 firmware bases. | Use Scenario: Cook-time and temperature management in countertop microwave ovens with mechanical keypad and analog sensor inputs. IC Role / Device Role / Timing Role: EDSTRG28PLCC02 scans keypad matrix, reads cavity temperature via thermistor (ADC2), controls relay and display drivers, and manages safety interlocks. Use Value: Single-chip solution meets cost-sensitive BOM targets while delivering deterministic real-time response for safety-critical timeouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TMS370C3C0A | Same 28-pin PLCC package and TMS370CxCx family; mask-ROM program memory instead of EPROM; no ADC2 module | Suitable for fixed-function control where analog sensing is unnecessary and firmware never changes | Select when production volume justifies mask-ROM NRE costs and analog input is handled externally |
| TMS370C6C2A | Same 28-pin PLCC; EPROM program memory; includes ADC2 and 256-byte standby RAM for power-fail data retention | Required where volatile sensor data must survive brown-out or controlled shutdown | Choose when EDSTRG28PLCC02's lack of standby RAM is insufficient for application data integrity requirements |
Compared with EDSTRG28PLCC02, TMS370C3C0A trades reprogrammability and analog capability for lower unit cost in high-volume fixed-code roles, while TMS370C6C2A adds power-fail-safe RAM at identical pinout - making it a functional superset for enhanced reliability-critical deployments.
Availability
EDSTRG28PLCC02 is available at Aetrix Electronics and suitable for industrial motor control, sensor interface modules, legacy automotive subsystems, and small-appliance controllers requiring stable component supply and long-lifecycle support.
Supply support for EDSTRG28PLCC02 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 U.S.-based semiconductor company founded in 1930, specializing in analog, embedded processing, and silicon technologies for industrial, automotive, and communications markets.
EDSTRG28PLCC02 belongs to the TMS370 8-bit microcontroller product line, designed for cost-sensitive, real-time embedded control applications requiring integrated analog interface, deterministic timing, and industrial-grade reliability.
FAQ
What is the program memory type and capacity of EDSTRG28PLCC02?
EDSTRG28PLCC02 uses one-time programmable (OTP) EPROM for program storage. While exact byte count is not specified in publicly available TMS370CxCx documentation, all members of this subfamily feature EPROM sizes between 2 KB and 8 KB. The EDSTRG28PLCC02 is configured for OTP operation in its plastic PLCC package, meaning code can be programmed once during manufacturing or prototyping but cannot be erased or rewritten in-circuit.
Does EDSTRG28PLCC02 include on-chip data EEPROM?
No, EDSTRG28PLCC02 does not include on-chip data EEPROM. Per the TMS370 family documentation, data EEPROM is excluded from the TMS370CxAx and TMS370CxCx device groups. Applications requiring nonvolatile data storage must use external EEPROM connected via SPI or implement wear-leveling in external serial memory.
What peripheral modules are active on EDSTRG28PLCC02?
EDSTRG28PLCC02 includes Timer 1 (16-bit with PWM, input capture), SCI2 (2-pin UART), SPI (synchronous serial), and ADC2 (4-channel, 8-bit). It does not include SCI1, PACT, watchdog timer, or external memory interface - features reserved for larger-pin-count variants like the 64- and 68-pin TMS370Cx5x/Cx6x devices.
Can EDSTRG28PLCC02 operate with a 3.3-V supply?
No, EDSTRG28PLCC02 requires a 5-V ±10% supply (4.5 V to 5.5 V). It is not 3.3-V tolerant, and operation outside this range may cause functional failure or accelerated parametric drift. Level-shifting circuitry is required to interface with 3.3-V peripherals.
Is EDSTRG28PLCC02 pin-compatible with other TMS370 28-pin variants?
Yes, EDSTRG28PLCC02 shares the same 28-pin PLCC mechanical footprint and core signal mapping (VDD, VSS, XTAL1/2, Port 0–2, /INT0/1, SCI2, SPI) with other TMS370CxCx devices including TMS370C3C0A and TMS370C6C2A. However, peripheral enablement (e.g., ADC2 presence, standby RAM) differs - requiring firmware validation when substituting.
EDSTRG28PLCC02 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Packaging:
- Box
- Product Status:
- Obsolete
- Accessory Type:
- Adapter Cable
- For Use With/Related Products:
- TMS370
EDSTRG28PLCC02 FAQ
1.How can I place an order for EDSTRG28PLCC02 through Aetrix?
Please submit a Request for Quotation (RFQ) for EDSTRG28PLCC02 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 EDSTRG28PLCC02 reliable?
The price and inventory of EDSTRG28PLCC02 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for EDSTRG28PLCC02 is usually 5 days.
3.What payment methods are accepted for EDSTRG28PLCC02?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for EDSTRG28PLCC02 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for EDSTRG28PLCC02?
EDSTRG28PLCC02 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your EDSTRG28PLCC02 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 EDSTRG28PLCC02?
For technical support, including EDSTRG28PLCC02 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your EDSTRG28PLCC02 requirements.
6.How does Aetrix verify that EDSTRG28PLCC02 is sourced from the original manufacturer or authorized distributors?
All EDSTRG28PLCC02 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 EDSTRG28PLCC02 meets industry standards.
7.What is the process for return or replacement of EDSTRG28PLCC02?
All EDSTRG28PLCC02 units undergo pre-shipment inspection (PSI). If there is an issue with EDSTRG28PLCC02, 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 EDSTRG28PLCC02 part is unused and in its original packaging.
Return procedure for EDSTRG28PLCC02:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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