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Renesas ZSSC3230BC1B
- Part No.:
- ZSSC3230BC1B
- Manufacturer:
- Renesas
- Category:
- Sensor and Detector Interfaces
- Package:
- Die
- Datasheet:
-
ZSSC3230BC1B.pdf
- Description:
- WAFER UNSAWN, 304
- Quantity:
- Payment:
- Shipping:
Inventory:3,820
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Product details
Overview
ZSSC3230BC1B from Renesas Electronics is a capacitive sensor signal conditioner IC that performs high-accuracy capacitance-to-digital conversion with on-chip digital compensation for offset, sensitivity, and temperature drift. It supports 0–30 pF sensor capacitance range, delivers up to 18-bit resolution, and outputs corrected values via I²C (up to 3.4 MHz) in industrial humidity and pressure sensing systems.
For engineers reviewing the ZSSC3230BC1B datasheet, ZSSC3230BC1B pinout, ZSSC3230BC1B application, or ZSSC3230BC1B equivalent, this device is selected for low-power, high-precision capacitive measurement where integrated calibration, NVM-programmable coefficients, and dual-mode operation (cyclic vs. command) are required.
Technical Context
The ZSSC3230BC1B integrates a charge-voltage converter (CVC), programmable gain amplifier (PGA), and 12–18-bit ADC with auto-zeroing, enabling differential or single-ended capacitive sensor interfacing. Its DSP core executes sensor-specific correction math using coefficients stored in 1000–10,000-cycle MTP memory.
It operates across -40°C to +125°C, supports three main modes-Sleep, Command, and Cyclic Measurement-and features internal temperature sensing (55 LSB/K resolution) with full 1st/2nd-order compensation applied to capacitance readings before output.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Capacitance Range | 0–30 pF input range; enables direct interface with standard MEMS and ceramic capacitive sensors without external conditioning. |
| ADC Resolution | Programmable 12–18 bits; higher resolution increases measurement fidelity at cost of conversion time (e.g., 18-bit ≈ 2 ms at 14-bit speed). |
| I²C Speed | Up to 3.4 MHz High-Speed Mode; supports fast host polling and real-time data streaming in closed-loop control systems. |
| Current Consumption | 1.3 µA average at 1 sample/sec; enables multi-year battery life in wireless sensor nodes and portable instrumentation. |
| Temperature Compensation | Full 1st/2nd-order math applied to capacitance output using internal 14-bit temperature sensor; eliminates need for external thermal monitoring. |
| NVM Endurance | 1,000–10,000 write cycles; sufficient for factory calibration and field reprogramming during sensor lifetime. |
| Operating Voltage | 1.68–3.6 V supply range; compatible with coin-cell, Li-ion, and low-dropout regulator outputs in compact designs. |
Pinout & Package
Package: 4 × 4 mm², 24-pin PQFN (wettable flank), RoHS-compliant, thermal pad exposed on underside.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| C0 | Analog Input | Main capacitive sensor input node; used with CC/CC′ in differential or single-ended configurations. |
| CC / CC′ | Analog Input | Duplicated sensor input pins (pins 3 and 17); selection between them is configurable via memory register 19H. |
| SDA / SCL | Digital I/O | Bi-directional I²C data/clock lines with internal pull-up support; operate up to 3.4 MHz for high-throughput sensor readout. |
| EOC | Digital Output | End-of-conversion interrupt signal; asserts after each completed measurement cycle to trigger host MCU response. |
| PDM | Digital Output | Pulse-density modulated output for direct analog-like interface to microcontrollers lacking I²C hardware. |
| RESQ | Digital Input | Active-low reset input with internal pull-up; allows synchronous system-level initialization without external components. |
| VDD / VSS | Power Supply | Single 1.68–3.6 V supply rail and ground; internal voltage regulator ensures stable analog/digital domain operation. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated NVM Calibration Memory | Stores full sensor correction coefficients and user configuration; eliminates external EEPROM and reduces BOM count. |
| Programmable Measurement Sequence | Supports single-shot, auto-cycling, and interrupt-driven measurement triggers; enables adaptive power management in edge devices. |
| Oversampling & Averaging Modes | Reduces effective noise floor by internal averaging; improves ENOB to 16 bits at 18-bit resolution without external filtering. |
| Internal Temperature Sensor | On-die, stress-insensitive reference with 14-bit resolution; provides accurate thermal data for real-time compensation without PCB space penalty. |
| No External Trimming Required | Factory-calibrated front-end and digital correction eliminate need for laser trimming, potentiometers, or manual tuning steps. |
Applications
| Humidity Sensing Systems | Industrial Pressure Transducers |
|---|---|
|
Use Scenario: Compact, battery-powered HVAC humidity modules requiring long-term stability and low maintenance. IC Role / Device Role / Timing Role: Primary signal conditioner converting capacitive polymer sensor output into calibrated digital humidity values. Use Value: Delivers ±0.1%FSO accuracy over -40°C to +125°C using on-chip 2nd-order temperature compensation-no external thermal sensor needed. |
Use Scenario: High-reliability pressure transducers for compressed air and hydraulic systems in factory automation. IC Role / Device Role / Timing Role: Front-end conditioner for MEMS capacitive pressure elements, providing compensated digital output for PLC analog inputs. Use Value: Enables 18-bit resolution with 290 Hz update rate and <1.3 µA average current-ideal for always-on industrial monitoring nodes. |
| Smart Appliance Level Sensors | Medical Disposable Flow Sensors |
|
Use Scenario: Water-level detection in washing machines and dishwashers using low-cost printed capacitive electrodes. IC Role / Device Role / Timing Role: Single-chip solution for electrode capacitance measurement, offset cancellation, and I²C reporting to appliance MCU. Use Value: Supports 0–15 pF offset compensation and programmable span scaling-accommodates manufacturing variation across plastic housing variants. |
Use Scenario: Single-use respiratory flow sensors in ventilators and anesthesia machines requiring medical-grade repeatability. IC Role / Device Role / Timing Role: Signal conditioner for disposable capacitive airflow transducers, delivering calibrated digital output per IEC 60601 requirements. Use Value: Achieves 0.1%FSO total error with integrated temperature compensation and 10-year NVM data retention-meets long-term traceability needs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar capacitive sensor signal conditioning applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TDK InvenSense ICM-42688-P | IMU with integrated capacitive pressure channel; no dedicated NVM calibration storage or 2nd-order temp math. | Targeted at motion + pressure fusion; lacks standalone sensor conditioning architecture and programmable correction engine. | Choose only if combining inertial and capacitive sensing on one die; not suitable for high-accuracy standalone capacitive measurement. |
| Analog Devices AD7746 | 24-bit sigma-delta CDC with fixed 16-bit temp sensor; no on-chip correction math or NVM coefficient storage. | Requires external MCU-based compensation; supports wider 0–17 pF range but adds software development overhead. | Prefer when maximum raw resolution is critical and host firmware can implement full calibration model; ZSSC3230BC1B reduces firmware burden. |
Compared with AD7746 and ICM-42688-P, the ZSSC3230BC1B uniquely integrates sensor-specific correction math, field-programmable NVM, and autonomous cyclic operation-enabling drop-in deployment in resource-constrained embedded systems without host-side computation.
Availability
ZSSC3230BC1B is available at Aetrix Electronics and suitable for industrial pressure transducers, medical flow sensors, smart appliance level detection, and HVAC humidity modules requiring stable component supply across extended product lifecycles.
Supply support for ZSSC3230BC1B 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 sensor solutions for automotive, industrial, and IoT markets.
The ZSSC3230BC1B belongs to Renesas' Smart Sensor Signal Conditioning product line, designed specifically to replace discrete analog front-ends and MCU-based calibration routines in high-accuracy capacitive sensing applications.
FAQ
What is the operating temperature range supported by the ZSSC3230BC1B?
The ZSSC3230BC1B operates from -40°C to +125°C, validated across its full specification range. This wide range is enabled by its internal temperature sensor (55 LSB/K resolution) and on-chip 1st/2nd-order compensation algorithm, ensuring stable performance in under-hood automotive, industrial motor control, and medical equipment environments. The ZSSC3230BC1B maintains ±0.1%FSO accuracy across this entire span without external thermal components.
Does the ZSSC3230BC1B require external passive components for basic operation?
No, the ZSSC3230BC1B requires no external trimming components, reference capacitors, or oscillator crystals for standard operation. Its fully integrated design includes an internal ring oscillator (3.0 MHz), voltage regulator, bias current generator, and programmable gain amplifier. Only VDD decoupling (recommended 100 nF) and optional I²C pull-ups are needed-reducing PCB area and assembly cost. The ZSSC3230BC1B achieves this while supporting 0–30 pF sensor interfaces directly.
How is calibration performed on the ZSSC3230BC1B?
Calibration of the ZSSC3230BC1B is performed via its I²C interface using a PC-controlled procedure that writes sensor-specific correction coefficients-including offset, sensitivity, and temperature drift terms-into its nonvolatile MTP memory. These coefficients are then automatically applied by the on-chip DSP during every measurement cycle. The ZSSC3230BC1B supports up to 10,000 reprogramming cycles, enabling field recalibration if required. No host MCU involvement is needed during runtime operation.
Can the ZSSC3230BC1B interface with single-ended capacitive sensors?
Yes, the ZSSC3230BC1B supports both differential and single-ended capacitive sensor configurations. In single-ended mode, the C0 pin is internally switched to VSS, and the sensor connects between CC (or CC′) and ground. This mode accommodates common off-the-shelf capacitive humidity and proximity sensors without requiring isolated PCB layouts. The ZSSC3230BC1B also provides 0–15 pF offset compensation to handle parasitic capacitance in such configurations.
What output formats does the ZSSC3230BC1B support?
The ZSSC3230BC1B supports two primary output formats: I²C-compatible digital data (up to 3.4 MHz) containing corrected 16-bit capacitance and 14-bit temperature values, and pulse-density modulated (PDM) output on the dedicated PDM pin for direct interface with low-cost microcontrollers lacking I²C hardware. Both outputs reflect fully compensated sensor results-no post-processing is required. The ZSSC3230BC1B generates EOC interrupts to synchronize host reads with measurement completion.
ZSSC3230BC1B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- Die
- Series:
- -
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Type:
- Capacitive Sensor
- Input Type:
- Analog, Digital
- Output Type:
- I2C, Serial
- Current - Supply:
- 1.1 mA
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- Die
ZSSC3230BC1B FAQ
1.How can I place an order for ZSSC3230BC1B through Aetrix?
Please submit a Request for Quotation (RFQ) for ZSSC3230BC1B 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 ZSSC3230BC1B reliable?
The price and inventory of ZSSC3230BC1B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZSSC3230BC1B is usually 5 days.
3.What payment methods are accepted for ZSSC3230BC1B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZSSC3230BC1B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ZSSC3230BC1B?
ZSSC3230BC1B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZSSC3230BC1B 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 ZSSC3230BC1B?
For technical support, including ZSSC3230BC1B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZSSC3230BC1B requirements.
6.How does Aetrix verify that ZSSC3230BC1B is sourced from the original manufacturer or authorized distributors?
All ZSSC3230BC1B 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 ZSSC3230BC1B meets industry standards.
7.What is the process for return or replacement of ZSSC3230BC1B?
All ZSSC3230BC1B units undergo pre-shipment inspection (PSI). If there is an issue with ZSSC3230BC1B, 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 ZSSC3230BC1B part is unused and in its original packaging.
Return procedure for ZSSC3230BC1B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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