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Renesas DF2148BTE20V
- Part No.:
- DF2148BTE20V
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 100-TQFP
- Datasheet:
-
DF2148BTE20V.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 100TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,357
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Product details
Overview
DF2148BTE20V from Renesas Electronics is a 16-bit single-chip microcontroller (MCU) in the H8S/2140B Group, featuring an H8S/2000 CPU core, 128 KB on-chip Flash ROM (F-ZTAT™), 4 KB RAM, 10-bit A/D converter, 8-bit D/A converter, and integrated peripherals including SCI, I²C, PWM timers (8-bit and 14-bit), FRT, WDT, and X-bus interface. It targets embedded control applications requiring deterministic real-time response and moderate code footprint, such as industrial HMI panels and motor control interfaces.
For engineers reviewing the DF2148BTE20V datasheet, DF2148BTE20V pinout, DF2148BTE20V application, or DF2148BTE20V equivalent, key selection considerations include its 128 KB Flash + 4 KB RAM memory configuration, absence of LPC interface and WUE pins, 14.0 × 14.0 mm LQFP-100 package, and support for X-bus host interface - all confirmed for this specific variant per Renesas Hardware Manual Rev. 3.00.
Technical Context
The DF2148BTE20V implements the H8S/2000 32-bit internal architecture with sixteen 16-bit general-purpose registers and a linear 16-Mbyte address space. Its peripheral set includes a data transfer controller (DTC) operating as bus master, dual PWM modules (8-bit PWM and 14-bit PWMX), and a 16-bit free-running timer (FRT) with input capture capability.
Unlike H8S/2145B and H8S/2148B 5-V variants, the DF2148BTE20V explicitly omits LPC interface functionality and WUE (Wake-Up Event) pin support, as documented in multiple revision notes across the Hardware Manual. It retains full X-bus interface (XBS) and SCI/I²C serial communication capabilities, with register-level initialization behavior defined by reset values such as TIER = 0x01 and DTVECR = 0x00.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | H8S/2000 16-bit core with 32-bit internal data path and 16-Mbyte linear address space |
| ROM Capacity | 128 KB Flash (F-ZTAT™) enabling field reprogramming without external programmer |
| RAM Capacity | 4 KB on-chip SRAM mapped to addresses H'E080–H'EFFF and H'FF00–H'FF7F |
| A/D Converter | 10-bit successive-approximation ADC with multiple input channels and scan mode support |
| D/A Converter | 8-bit voltage-output DAC usable for analog control signal generation |
| PWM Timers | One 8-bit PWM timer and one 14-bit PWMX timer supporting complementary output and dead-time insertion |
| Serial Interfaces | SCI (UART-like), I²C bus interface, and X-bus host interface - no LPC interface or WUE pins |
Pinout & Package
DF2148BTE20V is housed in a 100-pin LQFP package measuring 14.0 × 14.0 mm, with 0.5 mm pitch and exposed thermal pad. Pin functions are defined per operating mode (normal, advanced, debug), and NC pins must remain unconnected per Renesas handling guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VSS | Power supply and ground | Core logic supply (3.3 V); separate analog/digital ground routing recommended |
| XTAL, EXTAL | Crystal oscillator inputs | Supports external crystal up to 20 MHz; internal oscillator not available |
| RESET | Active-low reset input | Must be held low ≥1024 clock cycles for reliable hardware reset initiation |
| IRQ0–IRQ7 | External interrupt request inputs | Level-sensitive or edge-triggered via ICR register; supports priority-based nesting |
| P00–P07 | Port 0 general-purpose I/O | Bi-directional with DDR control; supports alternate functions including SCI TX/RX and PWM outputs |
| P30–P37 | Port 3 multiplexed I/O | Includes SERIRQ, HDB[0:7] signals for X-bus interface; not available on LPC variants |
| P80–P83 | Host interface pins | HA0/PME, HIFSD/CLKRUN, LPCPD - LPCPD and CLKRUN are unused (Hi-Z) on DF2148BTE20V |
| WUE0–WUE7 | Wake-up event inputs | Not supported on DF2148BTE20V; pins PB0–PB7 retain basic I/O or alternative functions only |
Key Features
| Feature | Design Value |
|---|---|
| F-ZTAT™ Flash Memory | 128 KB reprogrammable Flash enables firmware updates in-system without UV erasure or external tools |
| X-bus Host Interface (XBS) | Direct connection to external DRAM or ASICs with configurable wait-state control and burst transfer support |
| Dual PWM Architecture | Independent 8-bit and 14-bit PWM timers allow simultaneous motor phase control and auxiliary signal generation |
| Integrated Analog Peripherals | 10-bit ADC (up to 8 channels) and 8-bit DAC provide closed-loop analog sensing and actuation without external converters |
| Data Transfer Controller (DTC) | Hardware DMA engine reduces CPU load during memory-to-peripheral transfers, improving real-time determinism |
Applications
| Industrial HMI Panel | Brushless DC Motor Control |
|---|---|
Use Scenario: Standalone operator interface with keypad, LCD, and status LEDs in factory automation equipment. IC Role / Device Role / Timing Role: Main system controller executing UI logic, scanning keyboard matrix, driving segment LCD via port expansion, and managing serial diagnostics via SCI. Use Value: On-chip 128 KB Flash stores full UI firmware and localization assets; 10-bit ADC reads potentiometer inputs; X-bus interface connects to external display controller. | Use Scenario: Sensorless commutation control for 3-phase BLDC motors in HVAC blowers and power tools. IC Role / Device Role / Timing Role: Real-time execution of commutation algorithm using FRT for timing, PWMX for high-resolution phase drive, and ADC for back-EMF sampling. Use Value: 14-bit PWMX provides fine-grained duty-cycle resolution for smooth torque control; DTC offloads ADC-to-memory transfers during high-speed sampling. |
| Programmable Logic Controller (PLC) I/O Module | Embedded Test Instrumentation |
Use Scenario: DIN-rail mounted digital I/O expansion module with isolated inputs/outputs and Modbus RTU over RS-485. IC Role / Device Role / Timing Role: Protocol handler and I/O scheduler interfacing with optocoupled inputs, relay drivers, and SCI transceiver. Use Value: SCI supports full-duplex UART operation at up to 1 Mbps; 4 KB RAM buffers Modbus frame processing; Flash allows field-upgradable protocol stack. | Use Scenario: Portable handheld tester for sensor calibration, generating reference voltages and measuring response curves. IC Role / Device Role / Timing Role: Precision waveform generator (via 8-bit DAC) and measurement engine (via 10-bit ADC and input capture). Use Value: Synchronized DAC output and ADC sampling enabled by shared timer trigger; input capture on FRT measures pulse width with ±1-count accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HD64F2140BV | 64 KB Flash, same 4 KB RAM, identical peripheral set except reduced ROM; no F-ZTAT™ branding but functionally compatible | Suitable for cost-sensitive designs with smaller firmware footprints (<64 KB) | Select HD64F2140BV when firmware size permits and lower BOM cost is prioritized over field update flexibility |
| HD64F2141BV | 128 KB Flash, 4 KB RAM, adds optional I²C interface (not present on DF2148BTE20V per manual revision notes) | Preferred where I²C slave connectivity to sensors or EEPROM is required alongside X-bus host role | Choose HD64F2141BV if I²C peripheral usage is mandatory; verify pin compatibility as P3x assignments differ slightly |
Compared with DF2148BTE20V, HD64F2140BV offers lower Flash capacity at reduced cost but retains identical timing and I/O behavior, while HD64F2141BV adds I²C support at the expense of minor pin-function variations - neither is pin-compatible, but all three share the same LQFP-100 package and core instruction set.
Availability
DF2148BTE20V is available at Aetrix Electronics and suitable for industrial HMI panels, BLDC motor controllers, PLC I/O modules, and embedded test instrumentation requiring stable component supply and long-term production continuity.
Supply support for DF2148BTE20V 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/2140B Group, including DF2148BTE20V, was designed for cost-effective, real-time embedded control in resource-constrained systems where Flash programmability, integrated analog peripherals, and X-bus expandability are critical.
FAQ
What is the maximum operating frequency of the DF2148BTE20V?
The DF2148BTE20V operates with an external crystal up to 20 MHz on XTAL/EXTAL inputs, yielding a maximum CPU clock of 20 MHz in normal mode. Internal clock dividers support lower frequencies for power optimization, and the H8S/2000 core executes most instructions in 1–2 cycles at this rate. The DF2148BTE20V does not include an internal RC oscillator; system timing depends entirely on the external crystal or clock source.
Does the DF2148BTE20V support the LPC interface?
No, the DF2148BTE20V does not support the LPC interface. Renesas Hardware Manual Rev. 3.00 explicitly states that LPC functionality - including pins P80/P82/P83 and associated registers - is omitted from the DF2148BTE20V and H8S/2145B 5-V variants. Designers must rely on the X-bus interface (XBS) or SCI for host communication; LPC-based legacy PC-compatible peripherals cannot be directly interfaced using DF2148BTE20V.
What are the memory map details for DF2148BTE20V RAM?
The DF2148BTE20V contains 4 KB of on-chip RAM located at two non-contiguous address ranges: H'E080–H'EFFF (3 KB) and H'FF00–H'FF7F (1 KB). This layout is fixed and identical across all H8S/2140B Group members with 4 KB RAM, including DF2148BTE20V. No remapping or banking is supported; the entire 4 KB is accessible as general-purpose SRAM for stack, heap, and data storage during DF2148BTE20V operation.
Is the DF2148BTE20V pin-compatible with other H8S/2140B Group MCUs?
The DF2148BTE20V shares the same 100-pin LQFP-1414 package and pinout with other H8S/2140B Group members like HD64F2140BV and HD64F2141BV, but functional pin assignments differ. For example, P80–P83 and PB0–PB7 serve different roles or are unused on DF2148BTE20V due to omitted LPC and WUE features. Thus, while physical mounting is identical, PCB design requires verification of signal routing against the DF2148BTE20V-specific pin function table.
What development tools are officially supported for DF2148BTE20V firmware development?
Renesas officially supports the High-performance Embedded Workshop IDE with the H8S C/C++ Compiler (REJ10B0058), H8S Simulator/Debugger (ADE-702-282), and H8S Debugging Interface hardware for DF2148BTE20V. These tools target the H8S/2000 instruction set and support Flash programming via on-chip bootloader or dedicated programmers like the E8 emulator. Third-party GCC toolchains exist but lack official DF2148BTE20V device support or Flash programming integration.
DF2148BTE20V Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 100-TQFP
- Series:
- H8® H8S/2100
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Verified
- Core Processor:
- H8S/2000
- Core Size:
- 16-Bit
- Speed:
- 20MHz
- Connectivity:
- I2C, IrDA, SCI, X-Bus
- Peripherals:
- PWM, WDT
- Number of I/O:
- 74
- Program Memory Size:
- 128KB (128K 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; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -20°C ~ 75°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
DF2148BTE20V FAQ
1.How can I place an order for DF2148BTE20V through Aetrix?
Please submit a Request for Quotation (RFQ) for DF2148BTE20V 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 DF2148BTE20V reliable?
The price and inventory of DF2148BTE20V are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DF2148BTE20V is usually 5 days.
3.What payment methods are accepted for DF2148BTE20V?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DF2148BTE20V transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DF2148BTE20V?
DF2148BTE20V orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DF2148BTE20V 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 DF2148BTE20V?
For technical support, including DF2148BTE20V datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DF2148BTE20V requirements.
6.How does Aetrix verify that DF2148BTE20V is sourced from the original manufacturer or authorized distributors?
All DF2148BTE20V 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 DF2148BTE20V meets industry standards.
7.What is the process for return or replacement of DF2148BTE20V?
All DF2148BTE20V units undergo pre-shipment inspection (PSI). If there is an issue with DF2148BTE20V, 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 DF2148BTE20V part is unused and in its original packaging.
Return procedure for DF2148BTE20V:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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