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Renesas ZSSC3230BC6B
- Part No.:
- ZSSC3230BC6B
- Manufacturer:
- Renesas
- Category:
- Sensor and Detector Interfaces
- Package:
- Die
- Datasheet:
-
ZSSC3230BC6B.pdf
- Description:
- WAFER UNSAWN, 725U, WITH INKING
- Quantity:
- Payment:
- Shipping:
Inventory:3,085
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Product details
Overview
ZSSC3230BC6B from Renesas Electronics is a capacitive sensor signal conditioner IC performing high-accuracy capacitance-to-digital conversion with on-chip digital compensation for offset, sensitivity, and temperature drift. It supports 0–30 pF sensor capacitance, delivers up to 18-bit resolution, operates from 1.68–3.6 V, and outputs corrected values via I²C (up to 3.4 MHz) in humidity, pressure, and level sensing systems.
For engineers reviewing the ZSSC3230BC6B datasheet, ZSSC3230BC6B pinout, ZSSC3230BC6B application, or ZSSC3230BC6B equivalent, this page provides verified technical context, calibrated performance parameters, validated package mapping, confirmed I²C timing behavior, and real-world use cases in energy-efficient smart sensors requiring stable 14–18-bit compensated output at ≤290 Hz update rate.
Technical Context
The ZSSC3230BC6B integrates a charge-voltage converter (CVC), programmable gain amplifier (PGA), and 12–18-bit ADC optimized for capacitive sensor front-end operation. Its DSP core executes sensor-specific correction math using coefficients stored in 1000-cycle NVM, supporting full temperature-compensated measurement cycles at up to 555 Hz (14-bit temp + 12–18-bit capacitance).
It supports three operating modes: Sleep Mode (0.07–1 µA idle current), Command Mode (full command access, low-latency calibration), and Cyclic Measurement Mode (autonomous updates with PDM or I²C output). Sensor interface options include differential (CC/C0) and single-ended (CC/VSS) configurations, with programmable noise mode and shield driver capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ADC Resolution | Programmable 12–18 bits; enables trade-off between speed (1250 Hz @12-bit) and precision (290 Hz @16-bit corrected output). |
| Capacitance Range | 0–30 pF input range with 0–15 pF offset compensation; supports standard MEMS and polymer-based capacitive sensors. |
| I²C Speed | Up to 3.4 MHz High-Speed Mode; allows rapid readout of 16-bit corrected values without bottlenecking real-time control loops. |
| Supply Voltage | 1.68–3.6 V; compatible with single-cell Li-ion, coin-cell, and industrial 3.3 V rails without external regulation. |
| Operating Temp | −40°C to +125°C; qualified for automotive cabin, HVAC, and industrial pressure transducer environments. |
| Avg. Current @1Hz | 1.7–3.3 µA at 14-bit digital-only output; enables >10-year battery life in wireless sensor nodes. |
| ENOB | 14.4–16 bits (±3σ noise); confirms usable dynamic range exceeds 14-bit specification under real operating conditions. |
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 terminal; used with CC/CC′ in differential or single-ended mode per configuration register. |
| CC / CC′ | Analog Input | Duplicated sensor input pins (pins 3 & 17); selection controlled by CC_pin_selection bits in memory register 19HEX. |
| SDA / SCL | Digital I/O | Open-drain I²C bus interface; requires external pull-ups to VDD; supports Standard (100 kHz), Fast (400 kHz), and High-Speed (3.4 MHz) modes. |
| EOC | Digital Output | Active-low end-of-conversion interrupt; signals completion of full SSC cycle (capacitance + temperature + math). |
| PDM | Digital Output | Pulse-density modulated output for analog-like continuous streaming in Cyclic Measurement Mode; no external DAC required. |
| RESQ | Digital Input | Low-active reset pin with internal pull-up; initiates hardware reset independent of I²C command sequence. |
| VDD / VSS | Power Supply | Single 1.68–3.6 V supply rail; VSS serves as analog/digital ground reference for all internal circuitry and sensor interface. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated NVM | Multiple-time programmable memory stores calibration coefficients and user configuration; retains data ≥10 years. |
| Auto-compensated Temp Sensor | On-die temperature reference with 55 LSB/K resolution; not stress-sensitive, enabling accurate drift correction without external components. |
| Programmable Measurement Sequence | Configurable single-shot or autonomous cycling with end-of-sequence interrupt (EOC), enabling deterministic timing in closed-loop systems. |
| Oversampling & Averaging | Internal digital averaging reduces noise without firmware overhead; improves ENOB by ≥1.5 bits at 16-bit resolution. |
| No External Trimming | Full factory and field calibration supported via I²C; eliminates laser trimming, external resistors, or capacitors in production. |
Applications
| Humidity Sensing | Pressure Transduction |
|---|---|
|
Use Scenario: Polymer-based capacitive humidity sensor in HVAC ducts or portable air quality monitors. IC Role / Device Role / Timing Role: Primary signal conditioner converting capacitance shift (0.1–30 pF) into temperature-compensated digital output. Use Value: Delivers ±0.1%FSO accuracy over −40°C to +85°C without external temperature sensor or lookup tables. |
Use Scenario: MEMS capacitive pressure sensor in automotive brake fluid or industrial process monitoring. IC Role / Device Role / Timing Role: Front-end conditioner providing 16-bit compensated pressure readings at 290 Hz update rate. Use Value: Enables real-time pressure feedback in safety-critical systems with <2.5 ms wake-up latency from sleep state. |
| Level Detection | White Goods Control |
|
Use Scenario: Capacitive liquid level sensing in washing machine drums or tank-level monitoring systems. IC Role / Device Role / Timing Role: Single-ended sensor interface (CC-to-VSS) with programmable offset compensation for electrode fouling. Use Value: Maintains linearity across 0–30 pF range while rejecting parasitic capacitance shifts from condensation or coating. |
Use Scenario: Touchless proximity sensing in refrigerator door seals or dishwasher detergent dispensers. IC Role / Device Role / Timing Role: Low-power cyclic measurement node with PDM output driving microcontroller ADC inputs. Use Value: Achieves <1.7 µA average current at 1 Hz sampling, extending battery life beyond 10 years in sealed appliances. |
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 interface; lacks dedicated NVM-based sensor math and 18-bit resolution. | Targeted at motion sensing; requires external MCU for full capacitance compensation logic. | Choose only if combined inertial + capacitive sensing is needed; not a drop-in replacement for standalone signal conditioning. |
| Analog Devices AD7746 | 24-bit ΣΔ ADC with 0–17 pF range; no built-in temperature compensation math or programmable measurement sequencing. | Requires external microcontroller and calibration firmware; higher power (350 µA active) and larger PCB footprint. | Select when ultra-high resolution (24-bit) is mandatory and system-level compensation can be implemented externally. |
Compared with the ZSSC3230BC6B, the AD7746 offers higher raw resolution but demands external processing for temperature compensation and consumes >200× more current in active mode, while the ICM-42688-P embeds capacitive sensing only as a secondary function within an IMU architecture-neither matches the ZSSC3230BC6B's integrated, NVM-programmed, low-power, fully compensated signal chain.
Availability
ZSSC3230BC6B is available at Aetrix Electronics and suitable for humidity sensing, pressure transduction, and level detection applications requiring stable component supply, long-term calibration retention, and automotive-grade temperature operation.
Supply support for ZSSC3230BC6B 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 delivering microcontrollers, analog power, and SoC solutions for automotive, industrial, and IoT markets with emphasis on functional safety and energy efficiency.
The ZSSC3230BC6B belongs to Renesas' Smart Sensor Signal Conditioning product line, designed specifically to replace discrete op-amp + MCU + ADC signal chains in capacitive sensing applications with a single, calibrated, low-power IC.
FAQ
What is the maximum sensor capacitance supported by the ZSSC3230BC6B?
The ZSSC3230BC6B supports a maximum sensor capacitance of 30 pF with 0–15 pF offset compensation. This range accommodates common MEMS, ceramic, and polymer capacitive elements used in pressure, humidity, and proximity sensors. The device uses a charge-voltage converter architecture that maintains linearity and SNR across the full 0–30 pF span without external tuning components.
Does the ZSSC3230BC6B require external calibration components?
No, the ZSSC3230BC6B does not require external calibration components. All sensor-specific correction-including offset, sensitivity, and first- and second-order temperature drift-is performed digitally using coefficients stored in its internal multiple-time programmable NVM. Calibration is executed via I²C during production or field setup, eliminating laser trimming, external resistors, or capacitors in the signal path.
What I²C speeds does the ZSSC3230BC6B support?
The ZSSC3230BC6B supports I²C Standard Mode (100 kHz), Fast Mode (400 kHz), and High-Speed Mode (3.4 MHz). The 3.4 MHz capability enables sub-100 µs readout of 16-bit corrected sensor values, making it suitable for real-time control loops where latency must remain below 1 ms. Pull-up resistors to VDD are required on both SDA and SCL lines.
How does the ZSSC3230BC6B handle temperature compensation?
The ZSSC3230BC6B integrates an internal auto-compensated temperature sensor (55 LSB/K resolution) that is not stress-sensitive. Its DSP core applies stored calibration coefficients to perform simultaneous first- and second-order temperature compensation on the capacitance measurement. This occurs within a single full SSC cycle, delivering temperature-corrected output without requiring external temperature sensing or host MCU intervention.
What are the power consumption characteristics of the ZSSC3230BC6B in sleep mode?
In Sleep Mode, the ZSSC3230BC6B draws 0.07–1 µA typical idle current while maintaining I²C interface responsiveness. Upon receiving a valid command, it wakes up in ≤0.5 ms (communication) and ≤2 ms (analog operation), then returns to sleep after execution. At 1 measurement per second with 14-bit output, average current is 1.7–3.3 µA-enabling multi-year operation on coin-cell batteries.
ZSSC3230BC6B 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
ZSSC3230BC6B FAQ
1.How can I place an order for ZSSC3230BC6B through Aetrix?
Please submit a Request for Quotation (RFQ) for ZSSC3230BC6B 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 ZSSC3230BC6B reliable?
The price and inventory of ZSSC3230BC6B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZSSC3230BC6B is usually 5 days.
3.What payment methods are accepted for ZSSC3230BC6B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZSSC3230BC6B transactions.
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4.How is shipping managed for ZSSC3230BC6B?
ZSSC3230BC6B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZSSC3230BC6B 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 ZSSC3230BC6B?
For technical support, including ZSSC3230BC6B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZSSC3230BC6B requirements.
6.How does Aetrix verify that ZSSC3230BC6B is sourced from the original manufacturer or authorized distributors?
All ZSSC3230BC6B 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 ZSSC3230BC6B meets industry standards.
7.What is the process for return or replacement of ZSSC3230BC6B?
All ZSSC3230BC6B units undergo pre-shipment inspection (PSI). If there is an issue with ZSSC3230BC6B, 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 ZSSC3230BC6B part is unused and in its original packaging.
Return procedure for ZSSC3230BC6B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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