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Renesas X9400YV24I
- Part No.:
- X9400YV24I
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 24-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
X9400YV24I.pdf
- Description:
- IC DGT POT 2.5KOHM 64TAP 24TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,868
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Product details
Overview
X9400YV24I from Intersil is a quad digitally controlled potentiometer (XDCP™) integrating four independent 64-tap resistor arrays with SPI interface, nonvolatile data registers, and power-on wiper recall-designed for precision analog trimming in voltage dividers, amplifier gain control, and offset adjustment circuits operating from 2.7V to 5.5V VCC and ±5V analog supplies.
For engineers reviewing the X9400YV24I datasheet, X9400YV24I pinout, X9400YV24I application, or X9400YV24I equivalent, this page delivers verified technical context, exact pin functions, real-world use scenarios, and validated alternative parts for industrial-grade analog tuning systems requiring stable wiper position retention and low-power operation.
Technical Context
The X9400YV24I implements four independent 63-segment resistor arrays, each controlled by a volatile 6-bit Wiper Counter Register (WCR) decoded to select one of 64 tap points. Each array supports three-terminal potentiometer or two-terminal variable resistor configurations with VH/RH, VL/RL, and VW/RW terminals.
SPI communication uses CS, SCK, SI, and SO pins with support for read/write WCR and Data Registers (DR0–DR3), global transfer, increment/decrement, and status polling. Hardware write protection (WP) disables nonvolatile writes, while HOLD enables serial bus pause without reset.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| End-to-end resistance | 10 kΩ ±20% - defines full-scale analog range for voltage divider or current-limiting applications |
| Resolution | 64 taps (6-bit) - provides 1.56% step resolution for fine analog control |
| Wiper resistance | 40 Ω typical at 5V - minimizes signal path error in precision gain/offset circuits |
| VCC supply range | 2.7 V to 5.5 V - ensures compatibility with modern low-voltage microcontrollers and mixed-signal systems |
| Analog supply range | V+ = +5.5 V, V− = −5.5 V - enables bipolar signal conditioning across ±5 V rails |
| Standby current | < 1 µA max - supports battery-powered or energy-sensitive analog subsystems |
| Data retention | 100 years - guarantees long-term calibration stability without refresh |
| Endurance | 100,000 write cycles per register - supports field recalibration over product lifetime |
Pinout & Package
Package: 24-lead TSSOP (4.4 mm width), RoHS-compliant, Pb-free plus anneal finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | System supply voltage | Primary digital power rail (2.7–5.5 V); powers SPI interface and logic |
| VSS | System ground | Digital reference plane; must be connected before analog supplies for reliable power-up recall |
| V+, V− | Analog supply rails | Define ±5.5 V analog operating window; required before applying signals to pot terminals |
| CS | Chip select | Active-low enable; HIGH places device in standby (SO high-Z, ICC < 1 µA) |
| SCK | SPI clock input | Rising edge latches SI data; falling edge clocks SO output; max 2 MHz frequency |
| SI | SPI serial input | Accepts ID byte, instruction byte, and data; supports daisy-chain or shared-bus topology |
| SO | SPI serial output | Push-pull output; data valid within 100 ns of SCK falling edge |
| HOLD | Serial bus pause control | LOW (with SCK LOW) suspends ongoing SPI transaction; resumes on HIGH |
| WP | Hardware write protect | LOW disables all nonvolatile writes to DR0–DR3; prevents accidental calibration loss |
| A0, A1 | Device address inputs | Set LSBs of 8-bit slave address; allow up to 4 X9400YV24I devices on same SPI bus |
| VH0–VH3 / VL0–VL3 | Potentiometer terminal pairs | Fixed end terminals per array; VHx ≈ V+, VLx ≈ V−; tolerate −5.5 V to +5.5 V |
| VW0–VW3 | Wiper outputs | Variable tap points; wiper voltage follows linear interpolation between VHx and VLx |
Key Features
| Feature | Design Value |
|---|---|
| Four independent XDCPs in one package | Reduces board space and BOM count vs. discrete potentiometers or multiple single-channel ICs |
| Nonvolatile Data Registers (DR0–DR3) | Enables storage of up to four distinct calibration points per potentiometer for multi-mode systems |
| Power-on wiper recall from DR0 | Eliminates need for host MCU initialization sequence; ensures known analog state at boot |
| SPI-compatible serial interface | Uses standard 3-wire (CS/SCK/SI) + SO; supports shared bus with addressable A0/A1 pins |
| Low 40 Ω typical wiper resistance | Minimizes insertion error in precision op-amp feedback networks and sensor biasing circuits |
| Bipolar analog operation (±5.5 V) | Supports AC-coupled signal paths, audio level control, and industrial sensor interfaces |
Applications
| Audio Signal Level Control | Programmable Gain Amplifier |
|---|---|
Use Scenario: Adjusting line-level input/output amplitude in professional audio mixers or DAC output stages. IC Role / Device Role / Timing Role: Acts as digitally programmable two-terminal variable resistor in op-amp feedback loop or voltage divider network. Use Value: Enables remote, noise-immune gain adjustment without mechanical wear; 100-year data retention preserves factory calibration. |
Use Scenario: Setting precise closed-loop gain in instrumentation amplifiers or programmable gain stages for sensor front-ends. IC Role / Device Role / Timing Role: Configures Rf/Rin ratio in non-inverting amplifier topology using VH/VL/VW terminals. Use Value: 64-tap resolution and 40 Ω wiper resistance ensure <1% gain error across full range; DR0 recall guarantees consistent startup gain. |
| Offset Voltage Calibration | DC Power Supply Trim |
Use Scenario: Compensating input offset voltage in precision op-amps or comparator hysteresis thresholds. IC Role / Device Role / Timing Role: Functions as three-terminal potentiometer injecting adjustable DC bias into summing node or reference path. Use Value: Bipolar ±5.5 V analog rails allow symmetric offset correction; nonvolatile DR storage retains calibrated null point across power cycles. |
Use Scenario: Fine-tuning output voltage of adjustable DC-DC converters or linear regulators (e.g., LM317-based designs). IC Role / Device Role / Timing Role: Replaces mechanical trimmer in feedback divider network; VH/VL tied to VOUT/GND, VW feeds ADJ pin. Use Value: Eliminates manual calibration labor; 10 kΩ end-to-end resistance matches standard regulator design guidelines; WP pin prevents field overwrite. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digitally controlled potentiometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD5204BRUZ10 | Quad 256-tap, I²C interface, 10 kΩ, 2.7–5.5 V VDD, no bipolar analog rails (VSS/VDD only) | Lacks ±5 V analog capability; requires I²C host instead of SPI; higher resolution but no V+/V− support | Choose for I²C-based systems needing finer resolution where bipolar analog operation is unnecessary |
| MCP42050-I/P | Quad 256-tap, SPI interface, 50 kΩ, 2.7–5.5 V, no nonvolatile memory (volatile-only wiper) | No DR0–DR3 storage; wiper resets to mid-scale on power-up; higher end-to-end resistance limits current handling | Choose when cost sensitivity outweighs need for power-on recall or multi-point calibration storage |
Compared with AD5204BRUZ10 and MCP42050-I/P, the X9400YV24I uniquely combines SPI interface, ±5.5 V analog operation, nonvolatile multi-register storage, and 10 kΩ resistance optimized for industrial trimming-making it the only option supporting bipolar signal conditioning with guaranteed power-up state.
Availability
X9400YV24I is available at Aetrix Electronics and suitable for industrial sensor calibration, programmable power supply trimming, audio level control, and precision op-amp offset adjustment requiring stable component supply and long-term calibration integrity.
Supply support for X9400YV24I 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
Intersil Corporation is a precision analog and power management semiconductor company, now part of Renesas Electronics, with expertise in high-reliability industrial and infrastructure solutions.
The X9400 family was designed specifically for replacing mechanical potentiometers in automated calibration, test equipment, and programmable analog signal chains where nonvolatile setting retention and low-noise performance are critical.
FAQ
What is the analog voltage range supported by the X9400YV24I?
The X9400YV24I supports analog supplies of V+ = +5.5 V and V− = −5.5 V, enabling operation across a ±5.5 V bipolar range. This allows direct interfacing with AC-coupled signals, dual-supply op-amps, and industrial sensors without level-shifting circuitry. The VH, VL, and VW pins tolerate voltages within this rail range, making the X9400YV24I suitable for true bipolar analog trimming applications.
Does the X9400YV24I retain wiper position after power cycling?
Yes-the X9400YV24I automatically loads the contents of Data Register 0 (DR0) into the Wiper Counter Register (WCR) on power-up, ensuring repeatable analog behavior without host intervention. This power-on recall function is enabled by nonvolatile storage with 100-year data retention and requires no external EEPROM or MCU firmware initialization.
Can the X9400YV24I be used as a two-terminal variable resistor?
Yes-the X9400YV24I supports both three-terminal potentiometer and two-terminal variable resistor configurations. For two-terminal use, connect either VH or VL to the signal path and VW to the load, leaving the unused terminal open or tied to a fixed rail. The 10 kΩ end-to-end resistance and 40 Ω typical wiper resistance make it well-suited for current-setting and gain-control applications.
How many devices can share the same SPI bus with the X9400YV24I?
Up to four X9400YV24I devices can share a single SPI bus using the A0 and A1 address pins to configure unique 2-bit device addresses. Each device responds only when its address matches the least significant bits of the 8-bit slave ID byte (0101xxBB format), enabling compact multi-channel analog control without additional chip-select lines.
Is hardware write protection available on the X9400YV24I?
Yes-the WP (Write Protect) pin provides hardware-level protection against unintended nonvolatile writes. When WP is held LOW, all operations that store data to DR0–DR3-including XFR and Write Data Register instructions-are disabled. This prevents accidental overwriting of calibrated settings during system updates or debug sessions.
X9400YV24I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- XDCP™
- Package/Case:
- 24-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Taper:
- Linear
- Configuration:
- Potentiometer
- Number of Circuits:
- 4
- Number of Taps:
- 64
- Resistance (Ohms):
- 2.5k
- Interface:
- SPI
- Memory Type:
- Non-Volatile
- Voltage - Supply:
- ±5V
- Features:
- Selectable Address
- Tolerance:
- ±20%
- Temperature Coefficient (Typ):
- ±300ppm/°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 24-TSSOP
- Operating Temperature:
- -40°C ~ 85°C
- Resistance - Wiper (Ohms) (Typ):
- 40
X9400YV24I FAQ
1.How can I place an order for X9400YV24I through Aetrix?
Please submit a Request for Quotation (RFQ) for X9400YV24I 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 X9400YV24I reliable?
The price and inventory of X9400YV24I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for X9400YV24I is usually 5 days.
3.What payment methods are accepted for X9400YV24I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9400YV24I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9400YV24I?
X9400YV24I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9400YV24I 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 X9400YV24I?
For technical support, including X9400YV24I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9400YV24I requirements.
6.How does Aetrix verify that X9400YV24I is sourced from the original manufacturer or authorized distributors?
All X9400YV24I 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 X9400YV24I meets industry standards.
7.What is the process for return or replacement of X9400YV24I?
All X9400YV24I units undergo pre-shipment inspection (PSI). If there is an issue with X9400YV24I, 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 X9400YV24I part is unused and in its original packaging.
Return procedure for X9400YV24I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
X9400YV24I Tags
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