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Renesas X9400YS24-2.7
- Part No.:
- X9400YS24-2.7
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 24-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
X9400YS24-2.7.pdf
- Description:
- IC DGTL POT 2.5KOHM 64TAP 24SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,792
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Product details
Overview
X9400YS24-2.7 from Intersil is a quad digitally controlled potentiometer (XDCP™) with 64-tap resolution per channel, SPI serial interface, 2.7V–5.5V system supply, ±5V analog rail support, and nonvolatile wiper position storage in four data registers per pot. It operates as a three-terminal potentiometer or two-terminal variable resistor in precision analog signal conditioning circuits.
For engineers reviewing the X9400YS24-2.7 datasheet, X9400YS24-2.7 pinout, X9400YS24-2.7 application, or X9400YS24-2.7 equivalent, this device delivers low-noise (–120 dBV), low-power (1 µA standby), and high-reliability (100-year data retention, 100k endurance cycles) digital potentiometer functionality for industrial control, sensor calibration, and programmable gain/offset circuits requiring stable analog tuning without mechanical wear.
Technical Context
The X9400YS24-2.7 integrates four independent 63-segment resistor arrays with CMOS switch-controlled wipers, each driven by a volatile 6-bit Wiper Counter Register (WCR) and backed by four nonvolatile 6-bit Data Registers (DR0–DR3). Power-on recall loads DR0 into the WCR, enabling deterministic startup behavior.
Its SPI interface supports read/write of wiper positions and data registers, global transfers across all pots, and real-time increment/decrement via SCK-synchronized SI level detection - all with hardware write protection (WP pin) and dual-addressing (A0/A1) for up to four devices on one bus.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| End-to-end resistance | 10 kΩ ±20% or 2.5 kΩ ±20% - defines full-scale analog range and power dissipation limit (50 mW per pot) |
| Resolution | 64 taps (6-bit) - enables 1.56% step granularity for precise analog adjustment |
| Wiper resistance | 40 Ω typical at 5 V - minimizes insertion error in voltage divider configurations |
| Supply voltage (VCC) | 2.7 V to 5.5 V - supports single-supply operation from Li-ion battery or 3.3 V/5 V logic rails |
| Analog voltage range (V+/V−) | –5.5 V to +5.5 V - allows bipolar signal handling beyond digital supply rails |
| Standby current | <1 µA max - enables ultra-low-power operation in always-on sensor interfaces |
| Data retention | 100 years - ensures long-term calibration stability without refresh circuitry |
| Endurance | 100,000 writes per bit per register - supports field recalibration over product lifetime |
Pinout & Package
Package: 24-lead SOIC (300 mil), RoHS-compliant Pb-free plus anneal finish (MSL Level 3).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | System supply voltage input | Provides power to digital interface and control logic (2.7–5.5 V) |
| VSS | System ground reference | Common return path for digital circuitry and SPI interface |
| V+, V− | Analog supply rails | Set operating range for resistor arrays (–5.5 V to +5.5 V); must be powered before pot pins |
| CS | Chip select input | Active-low enable for SPI communication; required HIGH→LOW transition before any operation |
| SCK | Serial clock input | Drives SPI timing; rising edge latches SI, falling edge clocks SO |
| SI | Serial data input | Accepts ID byte, instruction byte, and data; used for increment/decrement control |
| SO | Serial data output | Push-pull output for read operations; tri-state when CS is HIGH |
| HOLD | Communication pause control | Halts ongoing SPI sequence without reset; requires SCK LOW during assertion |
| WP | Hardware write protect | Prevents nonvolatile writes to Data Registers when pulled LOW |
| A0, A1 | Device address inputs | Select 2 LSBs of 8-bit slave address; support up to 4 devices on shared SPI bus |
| VH0/RH0 – VH3/RH3 | Potentiometer high-side terminals | Equivalent to RH terminal of mechanical pot; connect to analog V+ or signal source |
| VL0/RL0 – VL3/RL3 | Potentiometer low-side terminals | Equivalent to RL terminal; connect to analog V− or signal sink |
| VW0/RW0 – VW3/RW3 | Wiper outputs | Equivalent to mechanical wiper; provides adjustable voltage/current node per pot |
Key Features
| Feature | Design Value |
|---|---|
| Quad independent potentiometers | Four fully isolated 64-tap resistor arrays on one die - eliminates board space and matching drift vs. discrete pots |
| Nonvolatile wiper storage | Four 6-bit Data Registers per pot retain settings through power cycles - enables factory calibration and user presets |
| SPI-compatible serial interface | Supports standard 3-wire SPI with CS, SCK, SI/SO - simplifies microcontroller integration and reduces GPIO count |
| Low-noise analog performance | –120 dBV noise floor and ±0.2 MI relative linearity - suitable for audio, sensor front-ends, and precision instrumentation |
| Wide analog voltage range | ±5.5 V rails independent of VCC - enables bipolar signal conditioning in mixed-signal systems |
| Hardware write protection | WP pin disables nonvolatile writes - prevents accidental corruption of calibrated settings in deployed systems |
Applications
| Industrial Sensor Calibration | Programmable Gain Amplifier |
|---|---|
Use Scenario: Calibrating offset and span of temperature, pressure, or current sensors in factory test fixtures and field-deployed modules. IC Role / Device Role / Timing Role: Four-channel digital potentiometer providing precision voltage divider and bias network tuning for analog front-end conditioning. Use Value: Eliminates manual trimpots and rework; enables automated calibration via host MCU and preserves settings across power cycles using nonvolatile DR0 recall. |
Use Scenario: Setting gain in instrumentation amplifiers and op-amp circuits where dynamic adjustment is required during operation or configuration. IC Role / Device Role / Timing Role: Two-terminal variable resistor configuring feedback or input impedance in noninverting/inverting amplifier topologies. Use Value: Achieves <1.6% resolution steps and <40 Ω wiper resistance - minimizing gain error and thermal drift versus mechanical alternatives. |
| Voltage Regulator Feedback Tuning | Comparator Hysteresis Control |
Use Scenario: Adjusting output voltage of adjustable LDOs or switching regulators (e.g., LM317, TLV7xxx) in programmable power supplies. IC Role / Device Role / Timing Role: Three-terminal potentiometer forming resistive divider between regulator output and ADJ pin to set VOUT. Use Value: Supports 2.7–5.5 V VCC and ±5.5 V analog rails - enables direct connection to regulator feedback loop without level-shifting. |
Use Scenario: Dynamically setting hysteresis thresholds in window comparators or Schmitt triggers for adaptive noise immunity in motor control or signal monitoring. IC Role / Device Role / Timing Role: Dual-pot configuration defining upper/lower trip points via resistor dividers on comparator inputs. Use Value: 100-year data retention ensures hysteresis values remain stable over product lifetime without recalibration. |
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, 2.7–5.5 V VDD, 10 kΩ end-to-end, no analog V+/V− rails | Requires external level-shifting for bipolar signals; lacks dedicated analog supply pins | Preferred when I²C bus is available and only unipolar analog tuning is needed |
| MCP42050-I/P | Dual 256-tap, SPI interface, 2.7–5.5 V, 50 kΩ end-to-end, no nonvolatile storage (volatile-only) | No DR0 power-on recall; wiper resets to mid-scale on power-up unless externally reloaded | Selected for cost-sensitive designs where calibration persistence is not required |
Compared with AD5204BRUZ10 and MCP42050-I/P, the X9400YS24-2.7 uniquely combines quad-channel SPI control, ±5.5 V analog rail independence, nonvolatile DR0 power-on recall, and hardware write protection - making it optimal for industrial systems requiring robust, field-programmable analog tuning without external support circuitry.
Availability
X9400YS24-2.7 is available at Aetrix Electronics and suitable for industrial sensor calibration, programmable power supplies, precision instrumentation, and embedded analog front-end tuning requiring stable component supply and long-term calibration integrity.
Supply support for X9400YS24-2.7 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 for applications demanding nonvolatile, low-drift, and low-noise digital potentiometer functionality - particularly in sensor signal chains, programmable power, and calibration-critical embedded systems.
FAQ
What is the power-up behavior of the X9400YS24-2.7?
The X9400YS24-2.7 automatically loads the contents of Data Register 0 (DR0) into the Wiper Counter Register (WCR) on power-up, restoring the last saved wiper position. This recall requires proper power sequencing: VCC must stabilize first, followed by V+ and V−, with VCC ramp rate between 0.2–50 V/msec. Glitches >100 mV on VCC may disrupt recall.
Does the X9400YS24-2.7 support bipolar analog signals?
Yes. The X9400YS24-2.7 accepts analog supplies V+ and V− ranging from –5.5 V to +5.5 V, independent of the 2.7–5.5 V VCC supply. This allows direct use in bipolar signal paths - such as audio processing or sensor bridges - without external level-shifting or rail-splitting circuitry.
How many wiper positions does the X9400YS24-2.7 support per potentiometer?
The X9400YS24-2.7 provides 64 discrete wiper positions per potentiometer, implemented via a 6-bit Wiper Counter Register controlling 63 resistive segments. This yields 1.56% resolution per step and supports both linear and logarithmic (via firmware mapping) taper profiles.
Can multiple X9400YS24-2.7 devices share the same SPI bus?
Yes. The X9400YS24-2.7 uses two address pins (A0, A1) to configure its 2-bit device address, allowing up to four units on a single SPI bus. Each device responds only when its address matches the two LSBs of the 8-bit slave ID byte sent by the host controller.
What is the maximum write time for nonvolatile storage in the X9400YS24-2.7?
The X9400YS24-2.7 requires up to 10 ms to complete a nonvolatile write to any Data Register. During this time, the Write-In-Progress (WIP) bit remains HIGH and can be polled via the Read Status command. No other nonvolatile operations may be initiated until WIP clears.
X9400YS24-2.7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- XDCP™
- Package/Case:
- 24-SOIC (0.295", 7.50mm 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:
- ±2.7V ~ 5.5V
- Features:
- Selectable Address
- Tolerance:
- ±20%
- Temperature Coefficient (Typ):
- ±300ppm/°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 24-SOIC
- Operating Temperature:
- 0°C ~ 70°C
- Resistance - Wiper (Ohms) (Typ):
- 150
X9400YS24-2.7 FAQ
1.How can I place an order for X9400YS24-2.7 through Aetrix?
Please submit a Request for Quotation (RFQ) for X9400YS24-2.7 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 X9400YS24-2.7 reliable?
The price and inventory of X9400YS24-2.7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for X9400YS24-2.7 is usually 5 days.
3.What payment methods are accepted for X9400YS24-2.7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9400YS24-2.7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9400YS24-2.7?
X9400YS24-2.7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9400YS24-2.7 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 X9400YS24-2.7?
For technical support, including X9400YS24-2.7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9400YS24-2.7 requirements.
6.How does Aetrix verify that X9400YS24-2.7 is sourced from the original manufacturer or authorized distributors?
All X9400YS24-2.7 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 X9400YS24-2.7 meets industry standards.
7.What is the process for return or replacement of X9400YS24-2.7?
All X9400YS24-2.7 units undergo pre-shipment inspection (PSI). If there is an issue with X9400YS24-2.7, 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 X9400YS24-2.7 part is unused and in its original packaging.
Return procedure for X9400YS24-2.7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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