My Inquiry
My Account
Renesas X9C102SZ
- Part No.:
- X9C102SZ
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
X9C102SZ.pdf
- Description:
- IC DGTL POT 1KOHM 100TAP 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,999
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
X9C102SZ from Renesas Electronics is a digitally controlled potentiometer (XDCP™) with 1 kΩ end-to-end resistance, 100 wiper tap points, and non-volatile memory for power-up recall. It implements a 99-element resistor array with make-before-break switching, operates from a single 5 V supply, and supports ±5 V terminal voltage range. It serves as a solid-state replacement for mechanical potentiometers in precision analog trimming circuits.
For engineers reviewing the X9C102SZ datasheet, X9C102SZ pinout, X9C102SZ application, or X9C102SZ equivalent, key selection criteria include its 1 kΩ resistance tolerance (±20%), 40 Ω typical wiper resistance, -40°C to +85°C industrial-grade variants, RoHS-compliant 8-lead SOIC package (M8.15E), and three-wire serial interface timing compliance (tCYC = 2 µs).
Technical Context
The X9C102SZ integrates a 7-bit up/down counter, non-volatile EEPROM storage, and a 99-resistor ladder with decoded wiper selection. Its control logic responds to negative-edge-triggered INC pulses while U/D sets direction and CS enables selection and store operations.
It uses an internal charge pump to support ±5 V analog terminal voltages with only a 5 V VCC supply, generating 20 mVRMS noise at 850 kHz. Wiper position is retained for 100 years and withstands 100,000 data changes per bit.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| End-to-End Resistance | 1 kΩ ±20% - defines full-scale analog adjustment range and load interaction in voltage divider configurations |
| Wiper Tap Points | 100 positions - provides 1% resolution steps across resistance range for fine-grained calibration |
| VCC Supply | 5 V ±10% - single-supply operation compatible with standard digital logic rails |
| Terminal Voltage Range | ±5 V referenced to VSS - enables bipolar signal handling without dual supplies |
| Wiper Resistance | 40 Ω typical - contributes directly to output impedance and insertion loss in variable resistor mode |
| Non-Volatile Retention | 100 years - ensures factory-set or user-trimmed values persist over product lifetime without backup power |
| Active Current | 3 mA max - determines system-level power budget during wiper adjustment sequences |
Pinout & Package
Package: 8-lead narrow-body SOIC (RoHS-compliant, M8.15E footprint, 1.27 mm pitch, 5.00 mm × 4.00 mm body).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 INC | Increment clock input | Negative-edge-triggered control line; toggling moves wiper one step in direction set by U/D |
| 2 U/D | Up/Down direction control | Logic level selects wiper movement direction (HIGH = increment, LOW = decrement) |
| 3 VH/RH | High-side fixed terminal | Analog terminal with ±5 V rating; functions as top rail of potentiometer or one end of variable resistor |
| 4 VSS | Ground reference | Primary return path for VCC and analog terminals; must be low-impedance for noise control |
| 5 VW/RW | Wiper output terminal | Movable contact point; series resistance ~40 Ω affects signal fidelity and loading in feedback paths |
| 6 VL/RL | Low-side fixed terminal | Analog terminal with ±5 V rating; functions as bottom rail or second end of variable resistor |
| 7 CS | Chip select / store enable | LOW enables device; HIGH with INC HIGH initiates non-volatile store; controls standby entry |
| 8 VCC | Positive supply | 5 V ±10% digital/analog supply; powers internal logic, charge pump, and memory circuitry |
Key Features
| Feature | Design Value |
|---|---|
| Solid-state construction | Eliminates mechanical wear, contact bounce, and vibration sensitivity inherent in rotary potentiometers |
| Three-wire serial interface | Requires only CS, U/D, and INC signals-no clock or data lines-reducing MCU GPIO count and PCB routing complexity |
| Non-volatile wiper storage | Automatically recalls last stored position at power-up, enabling consistent startup behavior without host initialization |
| Temperature-compensated array | ±600 ppm/°C RTOTAL drift ensures stable resistance ratio across 0°C to +70°C commercial operating range |
| Make-before-break switching | Prevents open-circuit transients during wiper movement, critical for stability in closed-loop analog circuits |
Applications
| Audio Signal Level Control | Laser Diode Bias Adjustment |
|---|---|
Use Scenario: Volume control in professional audio mixing consoles requiring repeatable, drift-free gain settings across temperature cycles. IC Role / Device Role / Timing Role: Two-terminal variable resistor configured between op-amp feedback path and ground to set closed-loop gain. Use Value: 100-tap resolution and ±20% resistance tolerance enable precise, reproducible channel matching without manual recalibration. |
Use Scenario: Fine-tuning bias current for telecom-grade laser diodes in fiber-optic transceivers operating over extended temperature ranges. IC Role / Device Role / Timing Role: Three-terminal potentiometer used as adjustable current-limiting element in constant-current source topology. Use Value: Non-volatile storage retains factory-calibrated bias point after power cycling, eliminating need for re-trimming during field deployment. |
| Power Supply Output Voltage Trim | Sensor Signal Conditioning Offset Null |
Use Scenario: Programmable output voltage adjustment in isolated DC-DC converters for industrial programmable logic controllers (PLCs). IC Role / Device Role / Timing Role: Voltage divider between feedback node and error amplifier reference to adjust regulation setpoint. Use Value: ±5 V terminal rating allows direct connection to error amp inputs without level-shifting, and 1 kΩ value minimizes divider loading on high-impedance references. |
Use Scenario: Nulling thermocouple or strain gauge bridge offset in precision measurement front-ends for medical instrumentation. IC Role / Device Role / Timing Role: Two-terminal variable resistor in op-amp summing junction to inject compensating offset voltage. Use Value: 40 Ω wiper resistance ensures minimal contribution to total offset error budget, and 100-year data retention guarantees calibration integrity over device lifetime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digitally controlled potentiometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD5201BRMZ10 | 10 kΩ end-to-end resistance, I²C interface, 64-tap resolution, no non-volatile memory | Requires external microcontroller I²C bus and periodic refresh of wiper setting; unsuitable for unattended power-cycle recovery | Select when higher resistance range and I²C compatibility outweigh need for automatic power-up recall |
| MCP41010-I/P | 10 kΩ end-to-end resistance, SPI interface, volatile wiper register, 257-tap resolution | Needs host MCU initialization at every power-on; lacks EEPROM storage; supports faster update rates (2 MHz SPI) | Prefer for high-speed dynamic adjustment where host control is guaranteed and persistent settings are managed externally |
Compared with AD5201BRMZ10 and MCP41010-I/P, the X9C102SZ delivers deterministic power-up behavior without firmware dependency, lower wiper resistance for reduced signal degradation, and simpler three-wire control-making it optimal for maintenance-free analog calibration in embedded systems.
Availability
X9C102SZ is available at Aetrix Electronics and suitable for audio equipment manufacturing, industrial power supply design, sensor calibration systems, and medical instrumentation requiring stable component supply and long-term parameter retention.
Supply support for X9C102SZ 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 manufacturer specializing in microcontrollers, analog mixed-signal devices, and power management ICs for industrial, automotive, and communications markets.
The X9C102SZ belongs to Renesas' XDCP™ family of digitally controlled potentiometers, designed specifically for replacing mechanical trimmers in high-reliability analog signal conditioning and calibration applications where long-term stability and power-cycle repeatability are essential.
FAQ
What is the maximum allowable voltage across VH/RH and VL/RL terminals for X9C102SZ?
The absolute maximum differential voltage ΔV = |VH/RH − VL/RL| for X9C102SZ is 4 V, as specified in the Absolute Maximum Ratings table. Exceeding this limit risks permanent damage to the internal resistor array or switching network. This constraint applies regardless of VCC level and must be respected in both powered and unpowered states.
Does X9C102SZ require external pull-up or pull-down resistors on its control pins?
No, X9C102SZ does not require external biasing on CS, U/D, or INC pins. Its input leakage current is ±10 µA max, and VIH/VIL thresholds (2.0 V / 0.8 V) are compatible with standard 5 V CMOS logic. Pull-ups or pull-downs are unnecessary unless specific system-level noise immunity or default-state requirements dictate otherwise.
How is non-volatile storage triggered on X9C102SZ?
Non-volatile storage on X9C102SZ is triggered by transitioning CS from LOW to HIGH while INC is held HIGH. The store operation completes in 20 ms (tCPH), after which the device enters standby mode. No additional commands or timing windows are required-the action is edge- and level-sensitive per the datasheet timing diagram.
Can X9C102SZ operate with analog signals exceeding the VCC supply voltage?
Yes-X9C102SZ supports analog terminal voltages from −5 V to +5 V relative to VSS, independent of the 5 V VCC supply, thanks to its internal charge pump. However, the differential voltage across VH/RH and VL/RL must remain ≤4 V, and all analog pins must stay within −8 V to +8 V absolute limits referenced to VSS.
What is the wiper resistance specification for X9C102SZ and how does it affect circuit performance?
X9C102SZ has a typical wiper resistance of 40 Ω, with a maximum of 100 Ω. This series resistance directly adds to output impedance in variable-resistor mode and introduces gain error in voltage-divider configurations. For precision applications, it must be factored into transfer function calculations-especially when driving low-impedance loads or high-frequency signals.
X9C102SZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- XDCP™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- 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):
- ±600ppm/°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 8-SOIC
- Operating Temperature:
- 0°C ~ 70°C
- Resistance - Wiper (Ohms) (Typ):
- 40
X9C102SZ FAQ
1.How can I place an order for X9C102SZ through Aetrix?
Please submit a Request for Quotation (RFQ) for X9C102SZ 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 X9C102SZ reliable?
The price and inventory of X9C102SZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for X9C102SZ is usually 5 days.
3.What payment methods are accepted for X9C102SZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9C102SZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9C102SZ?
X9C102SZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9C102SZ 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 X9C102SZ?
For technical support, including X9C102SZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9C102SZ requirements.
6.How does Aetrix verify that X9C102SZ is sourced from the original manufacturer or authorized distributors?
All X9C102SZ 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 X9C102SZ meets industry standards.
7.What is the process for return or replacement of X9C102SZ?
All X9C102SZ units undergo pre-shipment inspection (PSI). If there is an issue with X9C102SZ, 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 X9C102SZ part is unused and in its original packaging.
Return procedure for X9C102SZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
X9C102SZ Tags
-
MCP4018T-103E/LT
Microchip Technology
-
MCP4018T-503E/LT
Microchip Technology
-
MCP4011T-103E/SN
Microchip Technology
-
MCP4018T-104E/LT
Microchip Technology
-
MCP4017T-503E/LT
Microchip Technology
-
MCP4018T-502E/LT
Microchip Technology
-
MCP4017T-103E/LT
Microchip Technology
-
MCP4531T-103E/MF
Microchip Technology
-
MCP4021T-202E/SN
Microchip Technology
-
MCP4023T-103E/CH
Microchip Technology
-
MCP4022T-503E/CH
Microchip Technology
-
MCP4551T-502E/MS
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…
