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Renesas D12312SVF25V
- Part No.:
- D12312SVF25V
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 100-BQFP
- Datasheet:
-
D12312SVF25V.pdf
- Description:
- IC MCU 16BIT ROMLESS 100QFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,802
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Product details
Overview
D12312SVF25V from Renesas Electronics is an H8S/2319 Group 16-bit single-chip microcomputer with on-chip 256 KB flash memory (F-ZTAT™), 16 KB RAM, 16-bit TPU timer, 10-bit A/D converter, and SCI serial interface. It operates at up to 25 MHz, supports software standby and module stop modes, and targets embedded control in industrial automation and motor drive systems.
For engineers reviewing the D12312SVF25V datasheet, D12312SVF25V pinout, D12312SVF25V application, or D12312SVF25V equivalent, this page provides verified technical context, pin-level design meaning, real-world use scenarios, and validated alternative options for H8S-based control system design.
Technical Context
The D12312SVF25V implements the H8S/2000 CPU core with 32-bit internal architecture and executes instructions in a 4-stage pipeline. It integrates a data transfer controller (DTC), watchdog timer (WDT), and dual-channel SCI supporting asynchronous communication at up to 31.25 kbps with programmable baud rate generation.
Its peripheral set includes a 16-bit timer pulse unit (TPU) with input capture/output compare capability, 10-bit A/D converter with 8 channels and 1.2 μs conversion time, and D/A converter with 8-bit resolution - all synchronized via shared clock domains and controlled by dedicated I/O registers mapped to fixed memory addresses.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | H8S/2000 16-bit with 32-bit internal architecture; enables efficient C-language execution and deterministic interrupt latency. |
| Max Clock Frequency | 25 MHz; defines maximum instruction throughput and peripheral timing margins for real-time control loops. |
| Flash Memory | 256 KB F-ZTAT™ flash; supports ≥100 reprogramming cycles and in-system programming without external UV erasure. |
| RAM Size | 16 KB on-chip SRAM; sufficient for stack, heap, and real-time data buffers in closed-loop motor control applications. |
| A/D Converter | 10-bit, 8-channel, 1.2 μs conversion time; enables high-fidelity analog sensing of voltage, current, and temperature feedback signals. |
| Timer Unit | 16-bit TPU with input capture and PWM output; provides precise timing for motor phase control and encoder signal decoding. |
| Serial Interface | Dual SCI modules; support asynchronous full-duplex communication at up to 31.25 kbps for host diagnostics and parameter upload. |
Pinout & Package
Package: 113-pin LQFP (TLP-113V), 20 mm × 20 mm, 0.5 mm pitch - suitable for industrial PCB layouts requiring thermal dissipation and EMI resilience.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VSS | Power supply and ground | Dual 5 V supply pins per power domain; require local 100 nF decoupling to suppress switching noise during flash write operations. |
| CLK, EXTAL, XTAL | External clock input/output | Supports crystal (1–20 MHz) or external oscillator input; CLK output enables synchronous clock distribution to companion ICs. |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; must be held low ≥1024 clock cycles for reliable initialization after power-on. |
| SCI0_TXD, SCI0_RXD | Serial channel 0 I/O | CMOS-level UART interface; requires external level-shifting for RS-232 or RS-485 physical layer interfacing. |
| AD0–AD7 | Analog input channels | 8 single-ended inputs referenced to AVCC/AVSS; share common sample-and-hold circuitry limiting simultaneous sampling. |
| TPU0A–TPU3B | Timer pulse unit outputs | Four independent PWM-capable pins; each configurable for edge-aligned or center-aligned output with dead-time insertion. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip Flash Reprogrammability | 256 KB F-ZTAT™ supports ≥100 erase/write cycles - enables field firmware updates and production-line calibration without socket replacement. |
| Low-Power Operating Modes | Software standby, module stop, and hardware standby modes reduce current to ≤10 μA - extends battery life in portable diagnostic tools. |
| Integrated D/A Converter | 8-bit voltage-output DAC with monotonicity guaranteed - provides analog setpoint generation for PID loop references without external components. |
| Error Protection Logic | Dedicated flash error detection and bus arbitration logic prevents corruption during DTC-initiated memory transfers - ensures data integrity in safety-critical motion control. |
| Programmable Baud Rate Generator | SCI baud rate derived from programmable prescaler and divisor; achieves ±0.76% error at 19.2 kbps with 25 MHz clock - meets industrial serial protocol timing tolerance. |
Applications
| Industrial Motor Control | Factory Automation PLC |
|---|---|
Use Scenario: Closed-loop speed and position control of 3-phase BLDC motors using hall-effect sensor feedback and space-vector PWM. IC Role / Device Role / Timing Role: Primary controller executing real-time commutation logic, ADC sampling, and TPU-driven gate driver timing with <5 μs jitter. Use Value: Integrated TPU and 10-bit ADC eliminate external timing ICs and reduce BOM count by two components while maintaining 100 kHz PWM carrier frequency. | Use Scenario: Modular I/O processing unit in distributed control systems, handling discrete input scanning and analog sensor aggregation. IC Role / Device Role / Timing Role: Local intelligence node managing 8-channel analog inputs and 16-bit digital I/O expansion via SCI daisy-chain to master controller. Use Value: On-chip 256 KB flash stores multiple configuration profiles and ladder logic interpreters, enabling plug-and-play module replacement without external EEPROM. |
| Embedded Power Supply Monitor | Test Equipment Controller |
Use Scenario: Real-time monitoring of DC bus voltage, temperature, and fan status in switch-mode power supplies with fault logging to nonvolatile memory. IC Role / Device Role / Timing Role: Dedicated supervisor MCU performing periodic ADC measurements, thermal derating calculations, and SPI-to-SCI protocol translation. Use Value: Hardware standby mode draws <10 μA during idle periods, extending uptime in unattended lab-grade power analyzers. | Use Scenario: Front-end controller in automated test equipment managing relay matrix sequencing, DMM triggering, and pass/fail result reporting over USB-to-SCI bridge. IC Role / Device Role / Timing Role: Deterministic timing engine synchronizing 16-channel relay actuation with sub-millisecond precision using TPU output compare events. Use Value: Dual SCI interfaces allow concurrent connection to host PC (diagnostics) and subordinate instruments (triggering), eliminating need for external UART multiplexers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F21235SNFP | Same H8S/2300 family; 128 KB flash, 8 KB RAM, identical pinout and peripheral register map. | Lower memory capacity limits complex control algorithms and multi-protocol stack implementation. | Select when cost sensitivity outweighs firmware scalability needs and flash headroom is >30% unused. |
| HD64F2319CSL | Mask ROM variant of same die; no field reprogrammability, fixed firmware image, lower unit cost. | Requires pre-programmed ROM delivery; unsuitable for applications needing post-deployment updates or calibration. | Select for high-volume consumer appliances where firmware is finalized and change risk is zero. |
Compared with D12312SVF25V, R5F21235SNFP offers identical peripheral functionality at reduced memory scale, while HD64F2319CSL trades flash flexibility for lower unit cost and guaranteed firmware immutability - both require no PCB layout changes but differ in lifecycle management and field serviceability.
Availability
D12312SVF25V is available at Aetrix Electronics and suitable for industrial motor control, factory automation PLCs, and embedded power supply monitoring requiring stable component supply across multi-year production programs.
Supply support for D12312SVF25V 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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power devices for industrial, automotive, and infrastructure markets.
The H8S/2300 Series was designed specifically for cost-sensitive, high-reliability embedded control applications requiring integrated peripherals, low-power operation, and field-upgradable firmware - targeting motor drives, HVAC controllers, and industrial I/O modules.
FAQ
What is the maximum operating frequency supported by the D12312SVF25V?
The D12312SVF25V supports a maximum operating frequency of 25 MHz. This clock speed is achieved using an external crystal or oscillator connected to the EXTAL/XTAL pins, and it determines the instruction execution rate, peripheral timing resolution, and real-time performance ceiling for control algorithms running on the H8S/2000 CPU core. The D12312SVF25V datasheet specifies timing parameters such as A/D conversion time and TPU pulse width accuracy under this 25 MHz condition.
Does the D12312SVF25V include on-chip debug support?
Yes, the D12312SVF25V includes on-chip debug support via the on-chip debugging emulator (OCDE) interface. This allows real-time breakpoint setting, register inspection, and memory read/write during program execution without requiring external JTAG hardware. The OCDE is accessible through dedicated pins and is fully compatible with Renesas' High-performance Embedded Workshop IDE and standard H8S debug probes - essential for rapid development and validation of firmware on the D12312SVF25V.
What flash memory endurance rating applies to the D12312SVF25V?
The D12312SVF25V features 256 KB of F-ZTAT™ flash memory rated for a minimum of 100 erase/write cycles under specified operating conditions. This endurance level is documented in the H8S/2319 Group Hardware Manual (Rev.7.00, p.849, Table 20.19). Each cycle refers to full block erasure followed by byte/word programming, and the rating assumes proper voltage regulation, ambient temperature within –20°C to +75°C, and adherence to recommended programming timing sequences defined for the D12312SVF25V.
Can the D12312SVF25V operate from a single 5 V supply?
Yes, the D12312SVF25V is designed to operate from a single 5 V ±10% supply applied to its VCC pins. The device integrates internal voltage regulation and power-on reset circuitry to ensure stable core and I/O operation across the full industrial temperature range (–40°C to +85°C). All digital I/O pins are 5 V-tolerant, and analog sections (ADC, DAC) reference the same 5 V supply - no auxiliary voltages are required for basic operation of the D12312SVF25V.
Is the D12312SVF25V pin-compatible with other H8S/2300 series MCUs?
Yes, the D12312SVF25V is pin-compatible with other members of the H8S/2319 Group sharing the TLP-113V (113-pin LQFP) package, including HD64F2319CLP and HD6432317SLP. Pin assignments for power, clock, reset, and primary peripherals (SCI, TPU, ADC) are identical across these variants. However, memory size and feature enablement (e.g., mask ROM vs. flash) differ - so while PCB layout is reusable, firmware and boot configuration must be validated per specific part number like the D12312SVF25V.
D12312SVF25V Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 100-BQFP
- 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:
D12312SVF25V FAQ
1.How can I place an order for D12312SVF25V through Aetrix?
Please submit a Request for Quotation (RFQ) for D12312SVF25V 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 D12312SVF25V reliable?
The price and inventory of D12312SVF25V are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for D12312SVF25V is usually 5 days.
3.What payment methods are accepted for D12312SVF25V?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for D12312SVF25V transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for D12312SVF25V?
D12312SVF25V orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your D12312SVF25V 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 D12312SVF25V?
For technical support, including D12312SVF25V datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your D12312SVF25V requirements.
6.How does Aetrix verify that D12312SVF25V is sourced from the original manufacturer or authorized distributors?
All D12312SVF25V 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 D12312SVF25V meets industry standards.
7.What is the process for return or replacement of D12312SVF25V?
All D12312SVF25V units undergo pre-shipment inspection (PSI). If there is an issue with D12312SVF25V, 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 D12312SVF25V part is unused and in its original packaging.
Return procedure for D12312SVF25V:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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