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Renesas X9317ZS8T1
- Part No.:
- X9317ZS8T1
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
X9317ZS8T1.pdf
- Description:
- IC DGTL POT 1KOHM 100TAP 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,922
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Product details
Overview
X9317ZS8T1 from Renesas Electronics is a digitally controlled potentiometer (XDCP™) implementing a 99-element resistor array with 100 wiper tap positions, nonvolatile wiper position storage, and 3-wire up/down serial interface. It functions as a three-terminal voltage divider or two-terminal variable resistor for precision analog trimming in DC-coupled signal paths. Key confirmed parameters include end-to-end resistance of 10 kΩ ±20%, supply range of 2.7 V to 5.5 V, standby current <5 µA, and wiper resistance ≤400 Ω at 2.7 V.
For engineers reviewing the X9317ZS8T1 datasheet, X9317ZS8T1 pinout, X9317ZS8T1 application, or X9317ZS8T1 equivalent, this page delivers verified technical context, exact pin functionality, real-world use cases in bias control and regulator feedback, and validated alternative options - all grounded in Renesas FN8183 Rev.10.01 documentation.
Technical Context
The X9317ZS8T1 integrates a 7-bit up/down counter, decoder, nonvolatile memory, and resistor array with "make-before-break" wiper switching. Its control logic responds to CS (chip select), U/D (direction), and edge-triggered INC (increment) signals to move the wiper across 100 discrete taps without wraparound.
Wiper position is retained in nonvolatile memory for 100 years and recalled automatically on power-up. The device operates across -40°C to +85°C with ratiometric temperature coefficient ±20 ppm/°C and absolute linearity ±1 MI, enabling stable trim in thermally varying environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| End-to-end Resistance | 10 kΩ ±20% - defines full-scale analog adjustment range and sets maximum power dissipation limit (10 mW) |
| Supply Voltage Range | 2.7 V to 5.5 V - supports single-supply operation from Li-ion battery or 3.3 V/5 V rails without level-shifting |
| Standby Current | <5 µA - enables ultra-low-power retention during system sleep modes |
| Wiper Resistance | ≤400 Ω at 2.7 V - ensures minimal insertion error in low-voltage current-sense or gain-setting applications |
| Resolution | 1% (100-tap) - provides 9.9 mV step resolution across 1 V span, sufficient for fine DC offset trimming |
| Nonvolatile Endurance | 100,000 data changes per bit - guarantees long-term field reliability for recalibration routines |
| Temperature Coefficient | ±300 ppm/°C (absolute), ±20 ppm/°C (ratiometric) - maintains ratio stability critical for voltage reference scaling |
Pinout & Package
Package: 8-lead SOIC (RoHS-compliant, M8.15E outline, 3.9 mm × 4.9 mm × 1.75 mm max height).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (INC) | Increment clock input | Negative-edge-triggered control signal; toggling moves wiper up/down per U/D state; determines timing of wiper transition (tIW = 1–5 µs) |
| 2 (U/D) | Direction control input | Logic level selects wiper movement direction during INC transitions; may be changed dynamically while CS is low |
| 3 (RH) | High terminal | Fixed end of resistor array; connected to higher potential in voltage divider configuration; not polarity-referenced |
| 4 (VSS) | Ground reference | Return path for supply and signal currents; must be low-impedance to minimize noise coupling into wiper output |
| 5 (RW) | Wiper terminal | Movable contact point; series resistance ≤400 Ω at 2.7 V affects accuracy in high-gain amplifier feedback networks |
| 6 (RL) | Low terminal | Fixed end of resistor array; tied to ground or lower potential in voltage divider; defines bottom rail of adjustable range |
| 7 (CS) | Chip select | Active-low enable; HIGH initiates nonvolatile store when INC is also HIGH; LOW enables real-time wiper control |
| 8 (VCC) | Supply voltage | Power input (2.7–5.5 V); powers internal CMOS logic and switch drivers; ramp rate limited to 0.2–50 V/ms |
Key Features
| Feature | Design Value |
|---|---|
| Solid-state construction | Eliminates mechanical wear, contact bounce, and vibration sensitivity - ideal for automotive and industrial control panels |
| Nonvolatile wiper storage | Recalls last programmed position on power-up without external EEPROM or MCU intervention - reduces boot-time calibration overhead |
| Temperature-compensated array | ±20 ppm/°C ratiometric TC ensures stable voltage division ratio across -40°C to +85°C - critical for laser diode bias stability |
| Make-before-break switching | Prevents open-circuit transients during wiper movement - avoids glitches in op-amp feedback loops and comparator hysteresis networks |
| Low-power CMOS design | ICC1 ≤80 µA active, ISB <5 µA standby - extends battery life in portable instrumentation and sensor front-ends |
Applications
| LCD Bias Control | Laser Diode Bias Control |
|---|---|
Use Scenario: Adjusting VCOM voltage in TFT-LCD panels to minimize image flicker and improve grayscale uniformity. IC Role / Device Role / Timing Role: Three-terminal potentiometer setting DC bias level between RH (VDD) and RL (ground), with RW feeding buffer amplifier. Use Value: 100-tap resolution enables sub-mV tuning of VCOM to match panel-specific gamma curves without manual trimpots. |
Use Scenario: Setting precise bias current for edge-emitting laser diodes in fiber-optic transceivers. IC Role / Device Role / Timing Role: Two-terminal variable resistor in the Iadj path of an adjustable current source IC (e.g., LM317-based driver). Use Value: Nonvolatile storage retains optimal bias after power cycling, maintaining optical output power within Class 1 safety limits. |
| Voltage Regulator Output Control | DC Offset Trim in Instrumentation Amplifiers |
Use Scenario: Fine-tuning output voltage of programmable DC-DC converters used in FPGA core supply rails. IC Role / Device Role / Timing Role: Resistor in feedback divider network (RH–RW–RL) of TLVH431 or similar shunt reference. Use Value: ±20% RTOTAL tolerance accommodated by digital calibration; ratiometric TC prevents thermal drift-induced output deviation. |
Use Scenario: Nulling input offset voltage in precision strain gauge amplifiers operating at 0.1 µV resolution. IC Role / Device Role / Timing Role: Two-terminal variable resistor bridging differential inputs of an auto-zero op-amp (e.g., LMC7101). Use Value: Low 400 Ω wiper resistance minimizes Johnson noise contribution; 1% resolution achieves ≤10 µV offset correction step size. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digitally controlled potentiometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD5171BRMZ-10 | I²C interface, 64-tap resolution, 10 kΩ nominal, ±30% tolerance, 500 ppm/°C TC | Requires I²C host controller; lower resolution and higher tempco reduce precision in laser bias and LCD VCOM | Choose when I²C bus is available and ±30% RTOTAL tolerance is acceptable for coarse trim |
| MCP41HV51-103 | SPI interface, 257-tap resolution, 10 kΩ nominal, ±20% tolerance, 100 ppm/°C TC, 12 V tolerant | Higher voltage rating (12 V) and finer resolution suit industrial analog I/O modules; SPI adds complexity vs. 3-wire | Prefer for high-voltage analog front-ends where 12 V signal swing exceeds X9317ZS8T1's 6 V absolute max rating |
Compared with AD5171BRMZ-10 and MCP41HV51-103, the X9317ZS8T1 offers superior ratiometric stability (±20 ppm/°C vs. ±300/±100 ppm/°C) and simpler 3-wire control - making it optimal for cost-sensitive, thermally stable DC bias applications where SPI/I²C infrastructure is unavailable.
Availability
X9317ZS8T1 is available at Aetrix Electronics and suitable for LCD bias control, laser diode bias control, and voltage regulator output control requiring stable component supply, long-term calibration retention, and RoHS-compliant packaging.
Supply support for X9317ZS8T1 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 is a global semiconductor leader specializing in microcontrollers, analog power, and mixed-signal solutions for automotive, industrial, and IoT applications.
The X9317ZS8T1 belongs to Renesas' XDCP™ (eXternally Digitally Controlled Potentiometer) family, designed specifically for replacing mechanical trimpots in precision analog trimming, bias control, and calibration circuits where nonvolatile setting retention and solid-state reliability are mandatory.
FAQ
What is the absolute maximum voltage rating for the RH, RW, and RL terminals of the X9317ZS8T1?
The X9317ZS8T1 specifies an absolute maximum voltage of +6 V on RH, RW, and RL terminals with respect to VSS. This limit applies regardless of VCC level and must not be exceeded to prevent permanent damage to the internal resistor array or wiper switches. Operation beyond this rating voids warranty and risks irreversible junction breakdown.
Does the X9317ZS8T1 require external pull-up resistors on its CS, U/D, or INC pins?
No, the X9317ZS8T1 does not require external pull-up resistors on CS, U/D, or INC. Its input leakage current is ±10 µA over the full temperature range, and VIH/VIL thresholds are defined relative to VCC (VIH ≥ 0.7×VCC, VIL ≤ 0.1×VCC). Direct connection to CMOS logic outputs suffices; pull-ups add unnecessary power and noise susceptibility.
How long does it take for the X9317ZS8T1 wiper to settle after an INC transition?
The X9317ZS8T1 wiper settles within 1–5 µs after an INC transition, as specified by tIW (INC to RW change time). This timing is independent of VCC level and remains valid across the full -40°C to +85°C operating range. Settling occurs before the next INC edge, ensuring deterministic positioning in high-speed trimming sequences.
Can the X9317ZS8T1 be used in a 2.5 V system?
No, the X9317ZS8T1 is not rated for 2.5 V operation. Its minimum VCC is 2.7 V, and VIH threshold requires ≥1.89 V (0.7×2.7 V) for reliable logic recognition. Operating below 2.7 V risks incomplete wiper movement, failed nonvolatile stores, and undefined behavior - use X9317ZS8T1 only within its documented 2.7–5.5 V supply range.
What is the meaning of "MI" in the X9317ZS8T1 datasheet linearity specifications?
In the X9317ZS8T1 datasheet, "MI" stands for Minimum Increment - defined as [V(RH) − V(RL)]/99. Absolute linearity (±1 MI) means the actual wiper voltage deviates no more than ±1/99th of the full-scale voltage span from ideal position. Relative linearity (±0.2 MI) quantifies step-size consistency between adjacent taps, critical for monotonic DAC-like behavior.
X9317ZS8T1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- XDCP™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Taper:
- Linear
- Configuration:
- Potentiometer
- Number of Circuits:
- 1
- Number of Taps:
- 100
- Resistance (Ohms):
- 1k
- Interface:
- Up/Down (U/D, INC, CS)
- Memory Type:
- Non-Volatile
- Voltage - Supply:
- 5V
- Features:
- -
- Tolerance:
- ±20%
- Temperature Coefficient (Typ):
- ±300ppm/°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 8-SOIC
- Operating Temperature:
- 0°C ~ 70°C
- Resistance - Wiper (Ohms) (Typ):
- 200
X9317ZS8T1 FAQ
1.How can I place an order for X9317ZS8T1 through Aetrix?
Please submit a Request for Quotation (RFQ) for X9317ZS8T1 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 X9317ZS8T1 reliable?
The price and inventory of X9317ZS8T1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for X9317ZS8T1 is usually 5 days.
3.What payment methods are accepted for X9317ZS8T1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9317ZS8T1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9317ZS8T1?
X9317ZS8T1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9317ZS8T1 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 X9317ZS8T1?
For technical support, including X9317ZS8T1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9317ZS8T1 requirements.
6.How does Aetrix verify that X9317ZS8T1 is sourced from the original manufacturer or authorized distributors?
All X9317ZS8T1 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 X9317ZS8T1 meets industry standards.
7.What is the process for return or replacement of X9317ZS8T1?
All X9317ZS8T1 units undergo pre-shipment inspection (PSI). If there is an issue with X9317ZS8T1, 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 X9317ZS8T1 part is unused and in its original packaging.
Return procedure for X9317ZS8T1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
X9317ZS8T1 Tags
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