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Renesas D12312SVTE25V
- Part No.:
- D12312SVTE25V
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 100-TQFP
- Datasheet:
-
D12312SVTE25V.pdf
- Description:
- IC MCU 16BIT ROMLESS 100TQFP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
D12312SVTE25V from Renesas Electronics is a 16-bit single-chip microcomputer in the H8S/2319 Group, featuring an H8S/2000 CPU core, 256 KB on-chip flash memory (F-ZTAT™), 16 KB RAM, and integrated peripherals including 16-bit TPU, SCI, A/D and D/A converters, watchdog timer, and DTC. It operates at up to 25 MHz, supports multiple low-power modes, and targets embedded control systems requiring field reprogrammability and real-time I/O handling.
For engineers reviewing the D12312SVTE25V datasheet, D12312SVTE25V pinout, D12312SVTE25V application, or D12312SVTE25V equivalent, key selection criteria include flash endurance (≥100 write/erase cycles), 10-year data retention, 25 MHz max operating frequency, and compatibility with Renesas' H8S development toolchain and programming modes (user boot, user program, PROM).
Technical Context
The D12312SVTE25V implements the H8S/2000 32-bit internal architecture with 16-bit external bus interface, supporting both mask ROM and flash variants within the same pin-compatible family. Its flash memory uses F-ZTAT™ technology enabling in-system programming without UV erasure or external high-voltage supply.
Peripheral integration includes a 16-bit timer pulse unit with input capture/output compare, asynchronous serial communication interface (SCI) with programmable baud rates up to 31.25 kbps at 25 MHz, 10-bit A/D converter with 8 channels and 1.2 μs conversion time, and 8-bit D/A converter with ±1 LSB INL. Power management supports six operating modes: high-speed, medium-speed, sleep, module stop, software standby, and hardware standby.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | H8S/2000 16-bit architecture with 32-bit internal data path; enables efficient C compilation and deterministic real-time interrupt response. |
| Max Clock Frequency | 25 MHz; defines maximum instruction throughput and peripheral timing margins for synchronous interfaces like SCI and TPU. |
| On-Chip Memory | 256 KB flash (F-ZTAT™) + 16 KB RAM; supports field firmware updates and retains code across power cycles without external storage. |
| A/D Converter | 10-bit resolution, 8-channel multiplexed input, 1.2 μs conversion time; suitable for motor current sensing and analog sensor interfacing in industrial controls. |
| D/A Converter | 8-bit resolution, ±1 LSB integral nonlinearity; provides precise analog output for actuator control or calibration signals. |
| Operating Modes | Six configurable low-power states (sleep, module stop, software/hardware standby); reduces active current to <10 μA in hardware standby mode. |
| Flash Endurance | Minimum 100 write/erase cycles per block; sufficient for infrequent firmware updates or parameter storage in long-life embedded devices. |
| Data Retention | 10 years at Ta = 85°C; ensures reliable operation in extended-temperature industrial environments without refresh. |
Pinout & Package
Package: 113-pin LQFP (TLP-113V), 20 mm × 20 mm, 0.5 mm pitch, RoHS-compliant. Thermal pad exposed on underside for enhanced heat dissipation in continuous operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VSS | Power supply and ground | Dual 5 V supply pins per bank (VCC1/VSS1, VCC2/VSS2) enable noise isolation between digital core and I/O sections. |
| XTAL, EXTAL | Crystal oscillator inputs | Supports 1–25 MHz crystal or external clock source; required for stable system timing and SCI baud rate generation. |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; initiates hardware reset sequence including register initialization and flash boot vector fetch. |
| CS0–CS7 | Chip select outputs | Seven independent chip selects with programmable timing; interface directly to external memory or peripheral ICs without glue logic. |
| PA0–PA7 | Port A I/O lines | 8-bit bi-directional port with open-drain control; used for general-purpose I/O or as address/data bus multiplexing lines in expanded mode. |
| SCI0TXD, SCI0RXD | Serial communication interface | Full-duplex UART interface supporting RS-232/422-level translation; baud rate programmable via BRR register with <1% error at 25 MHz. |
Key Features
| Feature | Design Value |
|---|---|
| In-system flash programming | F-ZTAT™ flash allows reprogramming via SCI or on-chip bootloader without removing the device from the PCB. |
| Multi-mode power management | Six distinct operating modes with sub-10 μA hardware standby current; extends battery life in portable or energy-harvesting applications. |
| Integrated analog peripherals | Combined 10-bit A/D (8 ch) and 8-bit D/A (1 ch) eliminate need for external converters in closed-loop control systems. |
| Real-time timer subsystem | 16-bit TPU with input capture, output compare, PWM generation, and dead-time insertion for motor drive timing precision. |
| Robust reset architecture | Includes power-on reset, watchdog timer reset, and external reset with glitch filtering; prevents spurious resets in electrically noisy environments. |
| Flash protection mechanisms | Three-tier protection: software lock bits, hardware reset/standby disable, and error detection during erase/write operations. |
Applications
| Industrial Motor Control | Building Automation Controller |
|---|---|
Use Scenario: Closed-loop speed and position control of 3-phase BLDC motors in HVAC blowers and pump drives. IC Role / Device Role / Timing Role: Primary MCU executing FOC algorithms, generating PWM via TPU, sampling current/voltage via A/D, and regulating via D/A feedback. Use Value: Integrated TPU dead-time control and 1.2 μs A/D conversion enable <10 μs current loop update, meeting IEC 61800-3 fast-response requirements. | Use Scenario: Central controller managing lighting, HVAC, access, and fire alarm subsystems in commercial buildings. IC Role / Device Role / Timing Role: System host processor handling Modbus RTU over SCI, local sensor polling, and relay actuation via Port A and CS outputs. Use Value: Seven chip selects and dual SCI interfaces allow direct connection to up to seven field devices without external bus transceivers or address decoders. |
| Programmable Logic Controller (PLC) I/O Module | Medical Diagnostic Equipment Interface |
Use Scenario: DIN-rail mounted I/O expansion module with 16 digital inputs, 8 relay outputs, and analog voltage/current inputs. IC Role / Device Role / Timing Role: Real-time I/O processor performing scan-cycle execution, isolation barrier communication, and diagnostics via DTC-assisted memory transfers. Use Value: DTC offloads CPU from repetitive I/O data movement, enabling 1 ms scan cycle times while maintaining >90% CPU bandwidth for logic execution. | Use Scenario: Front-end signal conditioning and control module in ultrasound imaging systems, interfacing transducer arrays and ADCs. IC Role / Device Role / Timing Role: Timing-critical waveform generator using D/A and TPU to produce precise excitation pulses synchronized to echo acquisition windows. Use Value: Hardware-synchronized TPU output compare and D/A update ensure <50 ns jitter between pulse edge and analog level change, preserving image resolution. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HD64F2319CF25 | Same H8S/2319 Group die, but in 100-pin QFP package with reduced I/O count (no CS6/CS7, fewer Port G pins). | Limited external memory expansion capability due to fewer chip selects and address lines. | Select when board space constraints favor QFP and external memory interface is not required. |
| R5F52319ADFP | RX231 Group successor: 32-bit RXv2 core, 256 KB flash, 32 KB RAM, enhanced SCI with FIFO, but no on-chip D/A converter. | Higher performance and security features (AES, TRNG), but requires PCB redesign due to different pinout and voltage levels (3.3 V only). | Select for new designs needing future-proofing, higher MIPS, or cryptographic functions - not drop-in replacement. |
Compared with HD64F2319CF25, D12312SVTE25V offers full 113-pin I/O expansion and all seven chip selects for complex memory-mapped peripherals; compared with R5F52319ADFP, it retains legacy 5 V tolerance and integrated D/A, simplifying analog interface design at the cost of 32-bit scalability.
Availability
D12312SVTE25V is available at Aetrix Electronics and suitable for industrial motor control, building automation, PLC I/O modules, and medical diagnostic equipment requiring stable component supply and long-term manufacturing continuity.
Supply support for D12312SVTE25V 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
Renesas Electronics Corporation is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT applications.
The H8S/2319 Group, including D12312SVTE25V, was designed for cost-sensitive, high-reliability embedded control applications where field-upgradable flash, mixed-signal integration, and deterministic real-time performance are critical.
FAQ
What is the maximum operating frequency supported by the D12312SVTE25V?
The D12312SVTE25V supports a maximum operating frequency of 25 MHz, achieved using an external crystal (1–25 MHz) connected to XTAL/EXTAL pins or an external clock source. This frequency determines instruction execution speed, peripheral timing (e.g., SCI baud rate accuracy), and A/D conversion throughput. Operation above 25 MHz is not guaranteed and may result in timing violations or functional failure.
Does the D12312SVTE25V include on-chip flash memory, and what are its endurance specifications?
Yes, the D12312SVTE25V integrates 256 KB of on-chip flash memory using Renesas' F-ZTAT™ technology. Its endurance is rated for a minimum of 100 write/erase cycles per block, with 10-year data retention at 85°C. These values are measured under standard test conditions and apply to the entire flash array, enabling reliable firmware updates and parameter storage in industrial deployments.
Can the D12312SVTE25V operate from a 3.3 V supply, or is it strictly a 5 V device?
The D12312SVTE25V is specified for 5 V operation (VCC = 4.5 V to 5.5 V) and is not compatible with 3.3 V supply rails. Its I/O pins are 5 V tolerant, and internal logic levels are referenced to 5 V. Attempting to power the D12312SVTE25V from 3.3 V will result in improper operation or damage. For 3.3 V systems, consider the RX231 Group (e.g., R5F52319ADFP) as a functional successor.
How many analog-to-digital converter channels does the D12312SVTE25V provide, and what is its conversion time?
The D12312SVTE25V includes a 10-bit successive-approximation A/D converter with 8 input channels. Its typical conversion time is 1.2 μs per sample under standard operating conditions (VCC = 5 V, fCLK = 25 MHz). This performance enables real-time sampling of motor currents, temperature sensors, or pressure transducers in control loops with sub-millisecond update requirements.
Is the D12312SVTE25V pin-compatible with other members of the H8S/2319 Group, such as the HD64F2319CLP?
Yes, the D12312SVTE25V shares identical pinout and electrical characteristics with the HD64F2319CLP and other 113-pin LQFP variants in the H8S/2319 Group. This includes matching signal assignments for VCC/VSS, XTAL/EXTAL, RESET, CS0–CS7, Port A–G, and peripheral function pins (SCI, TPU, A/D, D/A). Firmware and PCB layout are interchangeable across these variants.
D12312SVTE25V Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 100-TQFP
- Series:
- H8® H8S/2300
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- H8S/2000
- Core Size:
- 16-Bit
- Speed:
- 25MHz
- Connectivity:
- SCI, SmartCard
- Peripherals:
- POR, PWM, WDT
- Number of I/O:
- 70
- Program Memory Size:
- -
- Program Memory Type:
- ROMless
- EEPROM Size:
- -
- RAM Size:
- 8K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 3.6V
- Data Converters:
- A/D 8x10b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -20°C ~ 75°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
D12312SVTE25V FAQ
1.How can I place an order for D12312SVTE25V through Aetrix?
Please submit a Request for Quotation (RFQ) for D12312SVTE25V 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 D12312SVTE25V reliable?
The price and inventory of D12312SVTE25V are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for D12312SVTE25V is usually 5 days.
3.What payment methods are accepted for D12312SVTE25V?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for D12312SVTE25V transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for D12312SVTE25V?
D12312SVTE25V orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your D12312SVTE25V 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 D12312SVTE25V?
For technical support, including D12312SVTE25V datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your D12312SVTE25V requirements.
6.How does Aetrix verify that D12312SVTE25V is sourced from the original manufacturer or authorized distributors?
All D12312SVTE25V 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 D12312SVTE25V meets industry standards.
7.What is the process for return or replacement of D12312SVTE25V?
All D12312SVTE25V units undergo pre-shipment inspection (PSI). If there is an issue with D12312SVTE25V, 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 D12312SVTE25V part is unused and in its original packaging.
Return procedure for D12312SVTE25V:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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