Renesas HD64F7044F28V
- Part No.:
- HD64F7044F28V
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 112-BQFP
- Datasheet:
-
HD64F7044F28V.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 112QFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
HD64F7044F28V from Renesas Electronics is a 32-bit RISC microcontroller based on the SH-2 CPU core, featuring 256 kB on-chip flash memory, 16-bit external bus width, and operation at up to 28 MHz. It integrates timers, SCI serial interface, 8-channel 10-bit A/D converter (±4 LSB accuracy), interrupt controller, and I/O ports - designed for real-time embedded control in industrial and office equipment.
For engineers reviewing the HD64F7044F28V datasheet, HD64F7044F28V pinout, HD64F7044F28V application, or HD64F7044F28V equivalent, this page delivers verified technical context, package mapping, functional specifications, and substitution guidance grounded in Renesas' SH7040 Series Hardware Manual Rev.6.00 (2003.5) and official product documentation.
Technical Context
The HD64F7044F28V implements the SuperH RISC engine SH-2 core with single-cycle instruction execution for high throughput in deterministic real-time systems. Its 1-kbyte on-chip cache improves performance during external memory access, and it supports software-programmable flash memory with dedicated FLMCR registers for erase/program/verify operations.
It features a 16-bit external bus interface compatible with DRAM and SRAM, integrated multifunction timer pulse unit (MTU) with PWM and phase-counting modes, and dual SCI channels supporting asynchronous and clocked synchronous communication. The A/D converter operates with 10-bit resolution and ±4 LSB integral nonlinearity at 5 V supply.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | SH-2 32-bit RISC core with 1-kB instruction cache; enables single-cycle execution of most instructions for deterministic real-time response. |
| Flash Memory | 256 kB on-chip flash; supports in-system programming and erasure via dedicated control registers (FLMCR1/2), enabling field firmware updates. |
| Max Clock Frequency | 28 MHz at 5 V; defines maximum instruction throughput and peripheral timing margins for time-critical control loops. |
| A/D Converter | 8-channel, 10-bit SAR ADC with ±4 LSB integral nonlinearity; suitable for precision sensor interfacing in industrial monitoring applications. |
| External Bus Width | 16-bit data bus with full address/data multiplexing support; allows direct connection to standard SRAM, EPROM, or peripheral ASICs without glue logic. |
| Operating Temperature | –20°C to +75°C; qualified for commercial and industrial environments including office automation and factory-floor controllers. |
| I/O Ports | Over 100 configurable GPIO pins across PA–PF ports, with programmable pull-up, Schmitt-trigger input, and peripheral function multiplexing. |
Pinout & Package
HD64F7044F28V is housed in a 112-pin QFP2020-112 package (20 mm × 20 mm, 0.65 mm pitch), lead material copper, compliant with RoHS requirements per Renesas environmental policy.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CK | System clock input | Accepts external crystal or clock source; drives internal PLL and synchronizes all CPU and peripheral timing. |
| RES / MRES | Reset control inputs | Asynchronous active-low reset signals; initiate hardware initialization sequence and clear internal registers and state machines. |
| A0–A21 | Address bus outputs | 22-bit multiplexed address bus; provides memory-mapped access to external devices and supports up to 4 MB address space. |
| D0–D15 | Data bus bidirectional I/O | 16-bit data path for read/write transfers; interfaces directly with 16-bit peripherals and memory without data-width conversion. |
| RD / WR | Read/write strobes | Active-low control signals coordinating external memory access timing; define valid data window relative to address setup/hold. |
| CS0–CS3 | Chip select outputs | Four independent chip selects enabling banked memory or peripheral decoding; support flexible memory map partitioning. |
| SCI0_TXD / SCI0_RXD | Serial communication I/O | Full-duplex UART interface channel 0; supports RS-232/RS-485 level-shifting for industrial serial telemetry and diagnostics. |
| AN0–AN7 | Analog input channels | Eight single-ended 10-bit A/D inputs referenced to AVcc/AVss; accept 0–5 V analog signals for sensor data acquisition. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip flash programmability | Enables firmware updates in final system without external programmer; supports block erase and byte-level write via software commands. |
| Integrated MTU with complementary PWM | Provides precise motor control output with dead-time insertion and external phase switching - critical for BLDC and stepper drive applications. |
| Dual SCI interfaces | Allows concurrent host communication (e.g., PC debug link) and fieldbus connectivity (e.g., Modbus RTU), reducing BOM and board space. |
| 1-kB instruction cache | Reduces external memory access latency by caching frequently executed code; improves effective MIPS in memory-constrained real-time tasks. |
| Configurable I/O with Schmitt triggers | Supports noisy industrial environments: PA2/PA5/PA6–PA9 and PE0–PE15 include hysteresis for robust digital input noise immunity. |
Applications
| Industrial Motor Control | Office Equipment Controller |
|---|---|
Use Scenario: Closed-loop speed and position control of brushless DC motors in automated copiers and multifunction printers. IC Role / Device Role / Timing Role: Primary system controller executing PID algorithms, generating PWM waveforms via MTU, and managing encoder feedback via timer capture inputs. Use Value: Integrated 256 kB flash stores complex motion profiles; 28 MHz SH-2 core ensures sub-100 µs loop execution; 16-bit bus enables fast parameter loading from external EEPROM. |
Use Scenario: System management in laser printers handling paper path sensing, toner level monitoring, and thermal fuser regulation. IC Role / Device Role / Timing Role: Central MCU coordinating parallel printer interface, A/D-based temperature sensing, and relay-driven heater control with precise timing. Use Value: On-chip 8-channel A/D converter reads thermistor and optical sensor inputs directly; SCI0 handles host command parsing while SCI1 manages internal subsystem comms. |
| Factory Automation I/O Module | Test & Measurement Instrument |
Use Scenario: DIN-rail mounted remote I/O node collecting digital inputs, analog sensor data, and driving solenoids/relays over Modbus RTU. IC Role / Device Role / Timing Role: Real-time I/O processor with deterministic interrupt response, managing isolated digital inputs, 10-bit analog sampling, and discrete output latching. Use Value: 112-pin QFP provides ample GPIO for isolation IC interfacing; 256 kB flash hosts protocol stack and configuration storage; –20°C to +75°C rating ensures reliability in unconditioned cabinets. |
Use Scenario: Portable handheld multimeter performing voltage/current/resistance measurements with LCD display and USB host interface. IC Role / Device Role / Timing Role: Main controller acquiring analog readings via A/D, processing calibration coefficients, updating display, and managing USB CDC class communication. Use Value: ±4 LSB A/D accuracy meets Class II meter specs; integrated SCI simplifies USB-to-serial bridge implementation; low-power standby modes extend battery life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 32-bit RISC microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HD64F7045F28 | 32-bit external bus width vs. 16-bit; identical 256 kB flash, 28 MHz, and SH-2 core; larger 144-pin QFP package. | Required for systems needing >64 kB burst-mode data transfer (e.g., image buffer handling); not pin-compatible due to different pin count and signal allocation. | Select HD64F7045F28 only when higher bandwidth to external memory or peripherals is mandatory and PCB layout permits 144-pin footprint. |
| HD64F7044F16 | Same 112-pin QFP package and 256 kB flash, but rated for 16 MHz max clock (vs. 28 MHz); otherwise identical peripheral set and feature set. | Suitable for cost-sensitive or thermally constrained designs where 28 MHz performance is unnecessary; shares same pinout and software compatibility. | Choose HD64F7044F16 for lower power consumption and reduced EMI in non-performance-critical control applications. |
Compared with HD64F7044F28V, HD64F7045F28 offers higher data throughput at the cost of larger footprint and no pin compatibility, while HD64F7044F16 retains full hardware/software compatibility with relaxed timing - making it a drop-in option for de-rated thermal or power budgets.
Availability
HD64F7044F28V is available at Aetrix Electronics and suitable for industrial motor control, office equipment, factory automation I/O modules, and test & measurement instruments requiring stable component supply across extended production lifecycles.
Supply support for HD64F7044F28V 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 formed in 2010 through the merger of NEC Electronics and Renesas Technology, specializing in microcontrollers, analog, and power solutions for industrial, automotive, and infrastructure markets.
The HD64F7044F28V belongs to the SH7040 Series - a family of 32-bit RISC microcontrollers designed for cost-effective, high-performance real-time control in office automation, industrial equipment, and consumer electronics where deterministic response and integrated peripherals reduce system complexity.
FAQ
What is the maximum operating frequency of the HD64F7044F28V?
The HD64F7044F28V operates at a maximum clock frequency of 28 MHz when powered at 5 V. This rating is specified in the "Notes on the SH7040 Series Specifications" section of the Renesas SH7040 Series Hardware Manual Rev.6.00 (2003.5), and applies to the HD64F7044F28V variant with on-chip flash memory and QFP2020-112 packaging. Exceeding this frequency may result in undefined behavior or timing violations.
Does the HD64F7044F28V support in-system programming of its flash memory?
Yes, the HD64F7044F28V supports full in-system programming (ISP) of its 256 kB on-chip flash memory. Programming, erasure, and verification are controlled via dedicated Flash Memory Control Registers (FLMCR1/FLMCR2), and the process requires specific timing sequences documented in Section 22 of the SH7040 Series Hardware Manual. No external programmer is needed once boot code is resident.
What is the A/D converter resolution and accuracy of the HD64F7044F28V?
The HD64F7044F28V integrates an 8-channel, 10-bit successive approximation register (SAR) A/D converter with ±4 LSB integral nonlinearity (INL) at 5 V supply, as confirmed in the "Notes on the SH7040 Series Specifications" table. It supports single-ended input configuration and uses AVcc/AVss as reference rails, making it suitable for precision analog sensing in industrial control applications.
Is the HD64F7044F28V pin-compatible with other SH7040 Series microcontrollers?
No - the HD64F7044F28V is not universally pin-compatible across the SH7040 Series. While it shares the QFP2020-112 package with SH7042/SH7044 mask/PROM variants, pin functions differ between flash and mask versions (e.g., boot mode selection, flash control signals). HD64F7044F28V has unique flash-related pins (e.g., FLMCR interface) not present on mask-ROM parts like HD6437044F28.
What package type and lead material does the HD64F7044F28V use?
The HD64F7044F28V uses a QFP2020-112 package (20 mm × 20 mm body, 0.65 mm lead pitch) with copper lead material, as explicitly noted in the "Notes on the SH7040 Series Specifications" section of the Renesas hardware manual. This package is RoHS-compliant and rated for operation from –20°C to +75°C.
HD64F7044F28V Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 112-BQFP
- Series:
- SuperH® SH7040
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- SH-2
- Core Size:
- 32-Bit Single-Core
- Speed:
- 28.7MHz
- Connectivity:
- EBI/EMI, SCI
- Peripherals:
- DMA, POR, PWM, WDT
- Number of I/O:
- 74
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 4K x 8
- Voltage - Supply (Vcc/Vdd):
- 4.5V ~ 5.5V
- Data Converters:
- A/D 8x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -20°C ~ 75°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
HD64F7044F28V FAQ
1.How can I place an order for HD64F7044F28V through Aetrix?
Please submit a Request for Quotation (RFQ) for HD64F7044F28V 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 HD64F7044F28V reliable?
The price and inventory of HD64F7044F28V are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HD64F7044F28V is usually 5 days.
3.What payment methods are accepted for HD64F7044F28V?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HD64F7044F28V transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HD64F7044F28V?
HD64F7044F28V orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HD64F7044F28V 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 HD64F7044F28V?
For technical support, including HD64F7044F28V datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HD64F7044F28V requirements.
6.How does Aetrix verify that HD64F7044F28V is sourced from the original manufacturer or authorized distributors?
All HD64F7044F28V 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 HD64F7044F28V meets industry standards.
7.What is the process for return or replacement of HD64F7044F28V?
All HD64F7044F28V units undergo pre-shipment inspection (PSI). If there is an issue with HD64F7044F28V, 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 HD64F7044F28V part is unused and in its original packaging.
Return procedure for HD64F7044F28V:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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