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Renesas DF2134AFA20V
- Part No.:
- DF2134AFA20V
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-BQFP
- Datasheet:
-
DF2134AFA20V.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 80QFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,400
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Product details
Overview
DF2134AFA20V from Renesas Electronics is a 16-bit single-chip microcomputer in the H8S/2134 Group, featuring a 32-bit H8S/2000 CPU core, 128 KB on-chip flash memory (F-ZTAT™), and integrated peripherals including dual 14-bit PWM timers, 8-channel 10-bit ADC, dual 8-bit DACs, three SCI interfaces, and a 16-bit free-running timer. It operates at up to 20 MHz with 5 V supply and targets embedded control in PC peripherals and power management systems.
For engineers reviewing the DF2134AFA20V datasheet, DF2134AFA20V pinout, DF2134AFA20V application, or DF2134AFA20V equivalent, key selection criteria include its 128 KB F-ZTAT™ flash architecture, absence of I²C, DTC, HIF, and PWM modules (vs. H8S/2138), 80-pin TFP-80C package, and support for single-chip operation with external clock or subclock input.
Technical Context
The DF2134AFA20V implements the H8S/2000 CPU core with 16 × 16-bit general-purpose registers, 16-Mbyte linear address space, and C-language optimized instruction set. It supports multiple low-power modes including Sleep, Module Stop, Watch, Subactive, and Software Standby - each with defined RAM retention and peripheral functionality states.
Its on-chip peripheral set includes three serial communication interfaces (SCI), dual 8-bit DACs, 8-channel 10-bit ADC with expansion inputs, two watchdog timers, one 16-bit free-running timer, three 8-bit timers (TMR0–TMR2), and two 14-bit PWM timers (PWMX0/PWMX1). No I²C bus interface, data transfer controller (DTC), host interface (HIF), or 8-bit PWM module is integrated.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | H8S/2000 32-bit architecture with 16×16-bit general registers; enables efficient C-code execution and deterministic real-time control. |
| Max Operating Frequency | 20 MHz at 4.5–5.5 V supply; defines maximum instruction throughput and peripheral timing resolution. |
| On-Chip Memory | 128 KB F-ZTAT™ flash (programmable in-system) + 4 KB RAM; supports field firmware updates without external programming hardware. |
| Analog Peripherals | 8-channel 10-bit ADC (with expansion inputs) + dual 8-bit DACs; enables closed-loop analog sensing and actuation in motor/power control. |
| Timer Resources | 1×16-bit free-running timer (FRT), 3×8-bit timers (TMR), 2×14-bit PWM timers (PWMX); supports precise timing, pulse generation, and motor phase control. |
| Communication Interfaces | 3×SCI (UART-compatible), no I²C or CAN; suitable for host-to-peripheral serial links but not multi-master bus topologies. |
| Supply Voltage | 4.5 V to 5.5 V; requires stable 5 V rail; NMOS push-pull outputs on P52/P97 limit high-level drive capability under load. |
Pinout & Package
DF2134AFA20V is housed in an 80-pin Thin Fine-Pitch Plastic QFP (TFP-80C) package with 0.5 mm pitch, designed for compact PCB layouts and standard reflow assembly. Pin functions are mode-dependent (Single-Chip Mode 1–3, Flash Programmer Mode), with shared pins supporting timer output, analog input, serial I/O, interrupt, and keyboard scan roles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10–P17 | Port 1 I/O (bidirectional) | General-purpose digital I/O with programmable pull-up; used for system control signals or status indicators. |
| P52/SCK0/SCL0 | Port 5 bit 2 / SCI0 clock / I²C clock (not functional in DF2134) | NMOS push-pull output; high-level voltage limited to VCC–0.5 V at –200 µA - requires external pull-up for robust logic-high signaling. |
| P97/SDA0 | Port 9 bit 7 / SCI0 data / I²C data (not functional in DF2134) | NMOS push-pull output; same drive limitation as P52; not usable as open-drain I²C node without external circuitry. |
| CLK/EXTAL | External clock input or crystal oscillator connection | Accepts 1–20 MHz external clock or 1–8 MHz crystal; determines system timing base and maximum CPU frequency. |
| RESET | Active-low reset input | Asynchronous reset assertion clears CPU state and internal registers; must be held low ≥1024 cycles after power stabilization. |
Key Features
| Feature | Design Value |
|---|---|
| F-ZTAT™ Flash Memory | 128 KB on-chip flash with in-system programmability and 10,000-cycle endurance; eliminates need for external EEPROM or boot ROM in volume production. |
| Dual 14-bit PWM Timers | PWMX0/PWMX1 provide 14-bit resolution and independent duty cycle control; enable high-precision motor speed or LED brightness regulation. |
| 8-Channel 10-bit ADC | Simultaneous sampling across 8 analog inputs with expansion capability; supports battery voltage monitoring, thermal sensing, and power rail supervision. |
| Three SCI Interfaces | SCI0–SCI2 support full-duplex UART operation at up to 2 Mbps; allow daisy-chain communication with host controllers or display modules. |
| Low-Power Operation Modes | Sleep, Module Stop, Watch, Subactive, and Software Standby modes with configurable RAM/peripheral retention; reduce active current to <100 µA in standby. |
Applications
| Keyboard Controller | Intelligent Battery Manager |
|---|---|
Use Scenario: Embedded controller in notebook PC keyboard assemblies managing key matrix scanning, debounce, and USB/HID protocol translation. IC Role / Device Role / Timing Role: Primary MCU executing key-scan firmware, generating scan pulses via port pins, and formatting HID reports over SCI-connected bridge IC. Use Value: Integrated 16×8 matrix key-scan support, fast 20 MHz response, and low-power sleep modes extend battery life between keystrokes. |
Use Scenario: Standalone fuel-gauge and protection unit in Li-ion battery packs for portable medical devices or industrial tools. IC Role / Device Role / Timing Role: System-on-chip performing cell voltage/current/temperature acquisition, SOC estimation, charge/discharge control, and SMBus communication. Use Value: On-chip 8-channel ADC, dual DACs for reference generation, and SCI for SMBus slave interface eliminate external signal-conditioning ICs. |
| PC Monitor Power Controller | Industrial Panel Controller |
Use Scenario: Power sequencing and backlight dimming controller in LCD monitor mainboards coordinating AC/DC conversion, DC/DC regulation, and CCFL/LED drivers. IC Role / Device Role / Timing Role: Central timing and control unit generating PWM dimming signals, monitoring rail voltages, and managing power-state transitions via GPIO and SCI. Use Value: Two 14-bit PWM timers deliver smooth, flicker-free backlight control; 10-bit ADC ensures accurate voltage margining across multiple rails. |
Use Scenario: Human-machine interface (HMI) controller in factory automation panels handling button inputs, LED status indication, relay control, and Modbus RTU communication. IC Role / Device Role / Timing Role: Real-time embedded controller reading discrete inputs, driving outputs, and polling field devices over SCI-based RS-485 link. Use Value: Three SCI interfaces support master/slave Modbus topology; 80-pin I/O count accommodates dense I/O mapping without external expanders. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HD64F2134AV | Same H8S/2134 Group core, 128 KB flash, but 64-pin LQFP package and 16 MHz max frequency; lacks P52/P97 NMOS output configuration. | Lower pin count and reduced I/O; suitable for space-constrained designs where full 80-pin I/O is unnecessary. | Select HD64F2134AV when board area is critical and peripheral count allows pin reduction; verify SCI baud rate compatibility at 16 MHz. |
| H8S/2138F-ZTAT™ | Higher-function variant with I²C, DTC, HIF, and 8-bit PWM modules; identical 80-pin TFP-80C package and 20 MHz rating. | Supports complex bus-based architectures (e.g., sensor networks with I²C slaves) and DMA-accelerated data movement. | Choose H8S/2138F-ZTAT™ only if I²C, DTC, or HIF functionality is required; otherwise, DF2134AFA20V offers lower cost and simpler software stack. |
Compared with HD64F2134AV, DF2134AFA20V provides higher clock speed and NMOS-tolerant I/O for legacy 5 V bus interfacing; versus H8S/2138F-ZTAT™, it trades peripheral richness for reduced code size, lower power in idle states, and simplified qualification for cost-sensitive consumer applications.
Availability
DF2134AFA20V is available at Aetrix Electronics and suitable for keyboard controllers, intelligent battery management systems, PC monitor power sequencers, and industrial panel controllers requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.
Supply support for DF2134AFA20V 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 enterprise applications.
The H8S/2134 Group was designed for cost-effective, high-integration embedded control in PC peripherals and power management systems - emphasizing fast 5 V operation, flexible flash-based firmware deployment, and rich analog/mixed-signal capability.
FAQ
What is the maximum operating frequency of the DF2134AFA20V?
The DF2134AFA20V operates at a maximum frequency of 20 MHz when supplied with 4.5 V to 5.5 V. This rating is validated across commercial temperature range (0°C to +70°C) and defines the upper limit for CPU instruction execution, timer resolution, and SCI baud rate generation. Exceeding this frequency may result in undefined behavior or timing violations in on-chip peripherals.
Does the DF2134AFA20V include an I²C interface?
No, the DF2134AFA20V does not include an I²C interface. While pin names such as P52/SCK0/SCL0 and P97/SDA0 appear in the datasheet, these functions are reserved and non-operational in the H8S/2134 Group. The DF2134AFA20V supports only three SCI (UART-compatible) interfaces for serial communication - I²C capability is exclusive to the higher-tier H8S/2138 Group.
What package type and pin count does the DF2134AFA20V use?
The DF2134AFA20V uses an 80-pin Thin Fine-Pitch Plastic QFP (TFP-80C) package with 0.5 mm lead pitch. This package supports high I/O density for mixed-signal applications and is compatible with standard surface-mount reflow processes. Pin functions are configurable across multiple operating modes, including Single-Chip Mode and Flash Programmer Mode.
How many analog-to-digital converter channels does the DF2134AFA20V support?
The DF2134AFA20V integrates an 8-channel 10-bit successive-approximation ADC with expansion inputs, allowing up to 8 simultaneous analog measurements. Input channels map to dedicated port pins (e.g., AD0–AD7), and the ADC supports software-triggered or timer-triggered conversions with configurable sample-and-hold timing - essential for battery voltage, temperature, and current sensing in DF2134AFA20V-based systems.
Is the DF2134AFA20V pin-compatible with other H8S/2134 family members?
Yes, the DF2134AFA20V shares the same 80-pin TFP-80C package and pinout with other H8S/2134 Group variants including HD64F2134A and HD64F2134AV. However, functional differences exist: DF2134AFA20V is rated for 20 MHz operation and features NMOS push-pull outputs on P52 and P97, whereas HD64F2134AV is limited to 16 MHz and lacks those specific drive characteristics.
DF2134AFA20V Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 80-BQFP
- Series:
- H8® H8S/2100
- Packaging:
- Tray
- Product Status:
- Last Time Buy
- Programmable:
- Not Verified
- Core Processor:
- H8S/2000
- Core Size:
- 16-Bit
- Speed:
- 20MHz
- Connectivity:
- IrDA, SCI
- Peripherals:
- POR, PWM, WDT
- Number of I/O:
- 58
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 4K x 8
- Voltage - Supply (Vcc/Vdd):
- 4V ~ 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:
DF2134AFA20V FAQ
1.How can I place an order for DF2134AFA20V through Aetrix?
Please submit a Request for Quotation (RFQ) for DF2134AFA20V 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 DF2134AFA20V reliable?
The price and inventory of DF2134AFA20V are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DF2134AFA20V is usually 5 days.
3.What payment methods are accepted for DF2134AFA20V?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DF2134AFA20V transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DF2134AFA20V?
DF2134AFA20V orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DF2134AFA20V 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 DF2134AFA20V?
For technical support, including DF2134AFA20V datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DF2134AFA20V requirements.
6.How does Aetrix verify that DF2134AFA20V is sourced from the original manufacturer or authorized distributors?
All DF2134AFA20V 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 DF2134AFA20V meets industry standards.
7.What is the process for return or replacement of DF2134AFA20V?
All DF2134AFA20V units undergo pre-shipment inspection (PSI). If there is an issue with DF2134AFA20V, 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 DF2134AFA20V part is unused and in its original packaging.
Return procedure for DF2134AFA20V:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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