My Inquiry
My Account
Renesas DF2138AVFA10V
- Part No.:
- DF2138AVFA10V
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-BQFP
- Datasheet:
-
DF2138AVFA10V.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 80QFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,024
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
DF2138AVFA10V from Renesas Electronics is a 16-bit single-chip microcomputer in the H8S/2138 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 (PWMX), 8-channel 10-bit ADC, dual DAC, three SCI interfaces, and an optional I²C bus interface. It operates at up to 25 MHz with 5 V supply and targets embedded control in PC peripherals and power management systems.
For engineers reviewing the DF2138AVFA10V datasheet, DF2138AVFA10V pinout, DF2138AVFA10V application, or DF2138AVFA10V equivalent, key selection considerations include its 80-pin TQFP package, dual PWMX capability for precise analog waveform generation, F-ZTAT™ flash reprogrammability in-system, and support for timer connection and DTC-assisted data transfers - all critical for real-time keyboard controller and intelligent battery system designs.
Technical Context
The DF2138AVFA10V implements the H8S/2000 CPU core with sixteen 16-bit general-purpose registers and a 16-Mbyte linear address space. It supports single-power-supply flash programming via F-ZTAT™ technology and includes two independent 14-bit PWMX timers capable of complementary output with dead-time insertion.
On-chip peripherals include an 8-channel 10-bit successive-approximation ADC with sample-and-hold, dual 8-bit DACs, three full-duplex SCI modules supporting IrDA, and a data transfer controller (DTC) that enables autonomous memory-to-peripheral transfers without CPU intervention - essential for deterministic timing in monitor control and power sequencing applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | H8S/2000 32-bit architecture with 16×16-bit general registers; executes basic instructions in one state for C-compiled code efficiency. |
| Flash Memory | 128 KB F-ZTAT™ flash; supports in-system programming and 10,000 erase/write cycles with 10-year data retention at 25°C. |
| PWM Resolution | 14-bit PWMX timers ×2; enables fine-grained duty-cycle control (e.g., 0.006% step size at 100 kHz carrier) for LED dimming or motor phase control. |
| ADC | 8-channel 10-bit SAR ADC with internal sample-and-hold; conversion time ≤1.2 µs per channel, suitable for real-time voltage/current monitoring. |
| DAC | Dual 8-bit voltage-output DACs; monotonicity guaranteed, used for reference voltage generation or analog feedback loop control. |
| Package | 80-pin TQFP (12 mm × 12 mm, 0.5 mm pitch); RoHS-compliant, standard footprint for high-density PCB layouts in notebook accessories. |
| Supply Voltage | 4.5 V to 5.5 V operation; NMOS push-pull outputs on P52/SCK0/SCL0 and P97/SDA0 require external pull-ups for I²C compatibility. |
Pinout & Package
DF2138AVFA10V is housed in an 80-pin Thin Quad Flat Package (TQFP) with 0.5 mm lead pitch and exposed thermal pad. Pin functions are mode-dependent (Single-Chip Mode 1–3, Flash Programmer Mode), with multiplexed signals including timer outputs, serial interfaces, A/D inputs, and host interface lines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10–P17 | Port 1 bidirectional I/O | Configurable as general-purpose I/O or dedicated SCI0/SCI1 pins; internal pull-up available (30–300 µA at 5 V). |
| P52/SCK0/SCL0 | Serial clock / I²C clock | NMOS push-pull output; requires external pull-up for I²C bus operation; also serves as SCI0 clock input. |
| P97/SDA0 | I²C data line | NMOS push-pull output; bidirectional I²C data path with open-drain behavior enforced by external pull-up. |
| AD0–AD7 | Analog input channels | 8 dedicated analog inputs for 10-bit ADC; share pins with Port 6 (P60–P67) in Single-Chip Mode 1. |
| DA0/DA1 | DAC output channels | Two independent 8-bit voltage-output DACs; each drives a dedicated analog output pin with rail-to-rail swing. |
Key Features
| Feature | Design Value |
|---|---|
| F-ZTAT™ Flash Memory | 128 KB single-supply reprogrammable flash enabling field firmware updates without UV erasure or external programmers. |
| Timer Connection Function | Allows cascading of TMRX/TMRY channels to form 24-bit or 32-bit timers - critical for long-interval timing in battery fuel gauging. |
| Data Transfer Controller (DTC) | Hardware DMA engine supporting 16 transfer modes; offloads CPU during ADC-to-memory or SCI-to-buffer transfers. |
| 16×8 Matrix Key-Scan Support | Integrated keyboard controller logic reduces external components in notebook keyboard controllers and remote control receivers. |
| Dual 14-bit PWMX Timers | Generate complementary PWM pairs with programmable dead-time; used for synchronous rectification or BLDC motor commutation. |
Applications
| Keyboard Controller | Intelligent Battery Management |
|---|---|
|
Use Scenario: Embedded controller in notebook keyboard assemblies handling key matrix scanning, debounce, and USB/HID protocol translation. IC Role / Device Role / Timing Role: Primary MCU executing real-time key-scan interrupt service, managing 16×8 matrix via built-in key-scan logic and buffering keystrokes into FIFO for host interface transmission. Use Value: Eliminates need for external keyboard controller IC; leverages integrated DTC to move scan results to RAM without CPU load, enabling low-power sleep between scans. |
Use Scenario: Fuel gauge and protection unit in Li-ion battery packs monitoring cell voltage, temperature, and charge/discharge current. IC Role / Device Role / Timing Role: System-on-chip managing ADC sampling of 8 analog inputs (cell voltages, thermistors), calculating SOC via coulomb counting, and driving DAC-based reference voltages for protection comparators. Use Value: On-chip 10-bit ADC with 1.2 µs conversion and dual DACs enable closed-loop analog monitoring without external signal conditioning, reducing BOM cost and board area. |
| PC Monitor Timing Controller | Industrial Power Sequencer |
|
Use Scenario: Timing and interface controller in LCD monitor mainboards coordinating EDID communication, backlight PWM, and OSD generation. IC Role / Device Role / Timing Role: Dual-role device: SCI0/SCI1 handle I²C-based EDID read and DDC/CI commands, while PWMX timers drive high-resolution backlight dimming with synchronized frame-blanking pulses. Use Value: Integrated I²C interface (via P52/P97) and 14-bit PWMX eliminate discrete level shifters and external PWM generators, simplifying compliance with VESA DisplayPort and HDMI timing specs. |
Use Scenario: Power-up/down sequencer in industrial PLC backplanes ensuring strict voltage ramp order across multiple rails (e.g., 5 V → 3.3 V → 1.8 V). IC Role / Device Role / Timing Role: Precision timing controller using FRT and connected TMRX/TMRY to generate sub-millisecond delay intervals, triggering GPIO-controlled MOSFET gate drivers via port outputs. Use Value: Hardware timer chaining provides deterministic, jitter-free sequencing independent of software latency - critical for preventing latch-up in multi-rail FPGA or ASIC power domains. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HD64F2138AV | Same H8S/2138 core, identical pinout and peripheral set; differs only in marking and minor mask revision - fully functionally equivalent. | No functional difference; used interchangeably in production where Renesas part numbering conventions vary by distribution channel. | Select HD64F2138AV when sourcing from legacy distributor stock; verify date code matches DF2138AVFA10V's F-ZTAT™ flash qualification (Rev. 4.00+). |
| H8S/2134F-ZTAT™ | Reduced-function variant: no DTC, no HIF, no PWM, no I²C option; 64 KB flash; same CPU core and ADC/DAC count but fewer timer channels. | Suitable for simpler keyboard controllers without DTC offload or PWM-driven backlight, but cannot replace DF2138AVFA10V in monitor timing or battery fuel-gauge roles. | Choose H8S/2134F-ZTAT™ only for cost-sensitive, lower-feature applications where DTC, PWMX, and I²C are unused - not a drop-in replacement. |
Compared with HD64F2138AV, DF2138AVFA10V offers identical functionality and timing; compared with H8S/2134F-ZTAT™, it delivers full peripheral complement including DTC and dual PWMX - making it the only choice for applications requiring hardware-accelerated data movement or high-resolution analog waveform generation.
Availability
DF2138AVFA10V is available at Aetrix Electronics and suitable for notebook keyboard controllers, intelligent battery packs, PC monitor timing systems, and industrial power sequencers requiring stable component supply across extended product lifecycles.
Supply support for DF2138AVFA10V 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, and power solutions for automotive, industrial, and consumer markets.
The H8S/2138 Group was designed for high-integration embedded control in PC-related peripherals and power management systems, emphasizing fast flash reprogrammability, rich analog/mixed-signal capability, and deterministic real-time response - directly embodied in DF2138AVFA10V.
FAQ
What is the maximum operating frequency of the DF2138AVFA10V?
The DF2138AVFA10V operates at a maximum CPU clock frequency of 25 MHz under 4.5 V to 5.5 V supply conditions. This frequency is supported by the H8S/2000 core's single-state instruction execution and validated across commercial temperature ranges (0°C to +70°C). The DF2138AVFA10V achieves deterministic timing for real-time tasks such as keyboard scan interrupts and ADC sampling without cycle-count variability.
Does the DF2138AVFA10V support in-system programming of its flash memory?
Yes, the DF2138AVFA10V features F-ZTAT™ (Flexible-ZTAT) flash memory enabling full in-system programming via standard on-chip interfaces - no external programmer or UV erasure required. The DF2138AVFA10V guarantees 10,000 erase/write cycles and 10-year data retention at 25°C, making it suitable for field firmware updates in deployed keyboard controllers and battery management units.
Which pins on the DF2138AVFA10V support I²C communication?
The DF2138AVFA10V uses P52/SCK0/SCL0 and P97/SDA0 as its primary I²C bus pins. Both are NMOS push-pull outputs requiring external pull-up resistors for proper open-drain I²C operation. These pins are shared with SCI0 clock and data functions, and their I²C capability is enabled via the IICE bit in the STCR register (address H'FFC3). The DF2138AVFA10V supports standard-mode (100 kbps) and fast-mode (400 kbps) I²C protocols.
Can the DF2138AVFA10V generate complementary PWM waveforms with dead time?
Yes, the DF2138AVFA10V's dual 14-bit PWMX timers support complementary output mode with programmable dead-time insertion - a hardware feature critical for synchronous rectification and motor gate-drive safety. Each PWMX channel can be configured independently, and dead-time values are set via dedicated registers (PWMDTY0/1). This capability is intrinsic to the DF2138AVFA10V's PWMX module and requires no software overhead.
What is the resolution and conversion speed of the DF2138AVFA10V's ADC?
The DF2138AVFA10V integrates an 8-channel, 10-bit successive-approximation ADC with internal sample-and-hold. Its maximum conversion time is 1.2 µs per channel at 25 MHz CPU clock, supporting continuous sampling at up to 833 kSPS aggregate rate. The ADC's design enables accurate voltage/current monitoring in battery fuel-gauge applications - a core use case for the DF2138AVFA10V in portable electronics.
DF2138AVFA10V 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:
- 10MHz
- Connectivity:
- Host Interface, I2C, 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):
- 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:
DF2138AVFA10V FAQ
1.How can I place an order for DF2138AVFA10V through Aetrix?
Please submit a Request for Quotation (RFQ) for DF2138AVFA10V 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 DF2138AVFA10V reliable?
The price and inventory of DF2138AVFA10V are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DF2138AVFA10V is usually 5 days.
3.What payment methods are accepted for DF2138AVFA10V?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DF2138AVFA10V transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DF2138AVFA10V?
DF2138AVFA10V orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DF2138AVFA10V 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 DF2138AVFA10V?
For technical support, including DF2138AVFA10V datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DF2138AVFA10V requirements.
6.How does Aetrix verify that DF2138AVFA10V is sourced from the original manufacturer or authorized distributors?
All DF2138AVFA10V 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 DF2138AVFA10V meets industry standards.
7.What is the process for return or replacement of DF2138AVFA10V?
All DF2138AVFA10V units undergo pre-shipment inspection (PSI). If there is an issue with DF2138AVFA10V, 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 DF2138AVFA10V part is unused and in its original packaging.
Return procedure for DF2138AVFA10V:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DF2138AVFA10V Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
