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Renesas X9400YV24IT1
- Part No.:
- X9400YV24IT1
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 24-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
X9400YV24IT1.pdf
- Description:
- IC DGT POT 2.5KOHM 64TAP 24TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,075
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Product details
Overview
X9400YV24IT1 from Intersil is a quad digitally controlled potentiometer (XDCP™) integrating four independent 64-tap resistor arrays with SPI interface, nonvolatile data registers (DR0–DR3), and power-on wiper recall. It operates from 2.7V to 5.5V VCC, supports ±5V analog rails (V+/V−), and delivers 40Ω typical wiper resistance at 5V - used for precision voltage divider and variable resistor functions in programmable gain amplifiers and sensor calibration circuits.
For engineers reviewing the X9400YV24IT1 datasheet, X9400YV24IT1 pinout, X9400YV24IT1 application, or X9400YV24IT1 equivalent, key selection criteria include its 24-pin TSSOP package, SPI-compatible serial control with HOLD/CS/WR protection, dual-supply analog operation (±5V), 100-year data retention, and support for four independent potentiometer configurations per device.
Technical Context
The X9400YV24IT1 implements four monolithic CMOS resistor arrays, each with 63 segments and 64 tap points controlled by a 6-bit volatile Wiper Counter Register (WCR). Each array features dedicated VH/RH, VL/RL, and VW/RW terminals, enabling three-terminal potentiometer or two-terminal rheostat operation.
Its SPI interface supports read/write/transfer operations across four nonvolatile 6-bit Data Registers per pot, with hardware write protection (WP), device addressing (A0/A1), and global transfer commands. Power-up automatically loads DR0 into the WCR, ensuring deterministic startup behavior without host initialization.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| End-to-end resistance | 10 kΩ ±20% - defines full-scale voltage division range and current handling (50 mW per pot) |
| Resolution | 64 taps (6-bit) - enables 1.56% step resolution for fine analog adjustment |
| Wiper resistance | 40 Ω typical at 5V - minimizes insertion error in low-impedance signal paths |
| VCC supply range | 2.7 V to 5.5 V - supports single-supply systems including battery-powered designs |
| Analog rail range | V+ = +5.5 V, V− = −5.5 V - allows bipolar signal conditioning up to ±5 V |
| Standby current | <1 µA max - enables ultra-low-power operation during idle periods |
| Data retention | 100 years - ensures long-term storage of calibrated settings without refresh |
| Endurance | 100,000 writes per register - supports frequent recalibration in field-deployed equipment |
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 power supply | 2.7–5.5 V digital core supply; powers SPI interface and logic |
| VSS | System ground | Digital reference for CS, SCK, SI, SO, A0, A1, HOLD, WP |
| V+, V− | Analog supply rails | Support ±5 V operation for potentiometer arrays; independent of VCC |
| CS | Chip select | Active-low enable; must transition HIGH→LOW before any SPI operation |
| SCK | Serial clock | Rising edge latches SI data; falling edge clocks SO data |
| SI | Serial input | Accepts ID byte, instruction byte, and data bytes for all write/transfer ops |
| SO | Serial output | Push-pull output; returns WCR/DR/status data during read cycles |
| HOLD | Communication pause | Halts ongoing SPI sequence when pulled LOW while SCK is LOW |
| WP | Hardware write protect | Prevents nonvolatile writes to DRs when LOW; no effect on volatile WCR |
| A0, A1 | Device address | Selects one of four possible slave addresses on shared SPI bus |
| VH0–VH3 / VL0–VL3 | Potentiometer terminals | Fixed end points (high/low) for each of four independent resistor arrays |
| VW0–VW3 | Wiper outputs | Variable tap points controlled by WCR; connect to signal path for adjustment |
Key Features
| Feature | Design Value |
|---|---|
| Quad independent XDCPs | Four fully isolated 64-tap potentiometers on one die - reduces board space vs. discrete solutions |
| SPI interface with HOLD | Enables multi-device daisy-chaining and real-time communication pause without reset |
| Nonvolatile DR0–DR3 | Stores up to four distinct wiper positions per pot - supports multi-mode calibration profiles |
| Power-on wiper recall | Automatically loads DR0 into WCR at startup - eliminates need for boot-time host initialization |
| Hardware write protection (WP) | Physically blocks nonvolatile writes to DRs - prevents accidental overwrites in field operation |
| Bipolar analog operation | Supports V+ = +5.5 V, V− = −5.5 V - enables AC-coupled and dual-rail signal conditioning |
Applications
| Programmable Gain Amplifier | Sensor Offset Calibration |
|---|---|
Use Scenario: Adjusting feedback network resistance in op-amp circuits to dynamically set closed-loop gain. IC Role / Device Role / Timing Role: X9400YV24IT1 acts as digitally reconfigurable feedback resistor in noninverting amplifier topology. Use Value: Enables software-selectable gain steps (e.g., ×1, ×10, ×100) without mechanical switches or external DACs. |
Use Scenario: Compensating thermal drift or manufacturing tolerance in analog sensor outputs (e.g., pressure, temperature). IC Role / Device Role / Timing Role: X9400YV24IT1 serves as precision offset nulling element in instrumentation amplifier front-end. Use Value: Delivers <±1 mV offset correction accuracy using 64-step resolution and 40 Ω wiper resistance. |
| Voltage Regulator Feedback Tuning | Comparator Hysteresis Control |
Use Scenario: Dynamically adjusting output voltage of adjustable LDOs or DC-DC converters via feedback divider ratio. IC Role / Device Role / Timing Role: X9400YV24IT1 replaces fixed resistors in R1/R2 feedback network of regulators like LM317. Use Value: Supports remote, firmware-controlled output voltage scaling (e.g., 3.3 V → 5.0 V) with monotonic step response. |
Use Scenario: Setting upper/lower threshold voltages in Schmitt trigger circuits for noise-immune digital input conditioning. IC Role / Device Role / Timing Role: X9400YV24IT1 configures hysteresis window width by varying resistor ratios in comparator positive feedback loop. Use Value: Allows runtime adaptation of noise margin (e.g., 50 mV → 200 mV) based on EMI environment detection. |
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, 3 V to 5.5 V VDD, no bipolar analog rails | Lacks ±5 V analog operation; requires level-shifting for bipolar signals | Choose for I²C-based systems needing higher resolution (256 taps) and lower wiper resistance (35 Ω) |
| MCP42050-I/SL | Quad 256-tap, SPI interface, 50 kΩ, 2.7 V to 5.5 V, no V+/V− pins, unidirectional analog range (0–VDD) | Cannot support negative voltages; limited to single-supply signal paths | Choose when only 0–VDD analog range is needed and higher end-to-end resistance improves SNR |
Compared with AD5204BRUZ10 and MCP42050-I/SL, the X9400YV24IT1 uniquely supports true bipolar analog operation (±5 V) with hardware write protection and power-on DR0 recall - critical for industrial sensor interfaces and precision test equipment requiring robust, field-reliable calibration storage.
Availability
X9400YV24IT1 is available at Aetrix Electronics and suitable for programmable gain amplifiers, sensor calibration systems, voltage regulator tuning, and comparator hysteresis control requiring stable component supply across industrial temperature ranges (−40°C to +85°C).
Supply support for X9400YV24IT1 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 provider, now part of Renesas Electronics, with expertise in high-reliability industrial and infrastructure solutions.
The X9400 family was designed for digitally reconfigurable analog signal conditioning in harsh environments - emphasizing nonvolatile setting retention, low power, and dual-supply flexibility for sensor, control, and test instrumentation applications.
FAQ
What is the operating temperature range for the X9400YV24IT1?
The X9400YV24IT1 is rated for industrial operation from −40°C to +85°C. This range is confirmed in the Ordering Information table (Page 2) and Recommended Operating Conditions (Page 11) of the FN8189 datasheet. The "Y" in the part number denotes the industrial temperature grade, distinguishing it from commercial-grade variants (0°C to +70°C).
Does the X9400YV24IT1 support true bipolar analog signal operation?
Yes, the X9400YV24IT1 supports true bipolar analog operation via dedicated V+ and V− pins, rated from −5.5 V to +5.5 V. This enables use in AC-coupled circuits and dual-rail op-amp configurations - a capability not found in most single-supply digital potentiometers. The datasheet specifies "Analog V+/V–: −5V to +5V" on Page 1.
How does power-on wiper recall work in the X9400YV24IT1?
On power-up, the X9400YV24IT1 automatically loads the contents of Data Register 0 (DR0) into the volatile Wiper Counter Register (WCR) for each of the four potentiometers. This behavior is explicitly documented in the DESCRIPTION section (Page 1) and WCR section (Page 4), ensuring repeatable startup wiper positions without host intervention.
What is the maximum SPI clock frequency supported by the X9400YV24IT1?
The X9400YV24IT1 supports an SPI clock frequency (fSCK) up to 2.0 MHz, as specified in the AC Timing table (Page 13). This limit applies across the full industrial temperature range and ensures reliable serial communication timing for write, read, and transfer operations.
Can the X9400YV24IT1 be used as a two-terminal variable resistor?
Yes, the X9400YV24IT1 can be configured as a two-terminal variable resistor (rheostat) by connecting either VH or VL to VW, leaving the other terminal open or grounded. The datasheet explicitly states this capability in the DESCRIPTION section (Page 1): "The XDCP can be used as a three-terminal potentiometer or as a two-terminal variable resistor…"
X9400YV24IT1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- XDCP™
- Package/Case:
- 24-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- 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
X9400YV24IT1 FAQ
1.How can I place an order for X9400YV24IT1 through Aetrix?
Please submit a Request for Quotation (RFQ) for X9400YV24IT1 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 X9400YV24IT1 reliable?
The price and inventory of X9400YV24IT1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for X9400YV24IT1 is usually 5 days.
3.What payment methods are accepted for X9400YV24IT1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9400YV24IT1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9400YV24IT1?
X9400YV24IT1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9400YV24IT1 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 X9400YV24IT1?
For technical support, including X9400YV24IT1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9400YV24IT1 requirements.
6.How does Aetrix verify that X9400YV24IT1 is sourced from the original manufacturer or authorized distributors?
All X9400YV24IT1 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 X9400YV24IT1 meets industry standards.
7.What is the process for return or replacement of X9400YV24IT1?
All X9400YV24IT1 units undergo pre-shipment inspection (PSI). If there is an issue with X9400YV24IT1, 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 X9400YV24IT1 part is unused and in its original packaging.
Return procedure for X9400YV24IT1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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