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NXP Semiconductors PCF2100CT/F1,112
- Part No.:
- PCF2100CT/F1,112
- Manufacturer:
- NXP Semiconductors
- Category:
- Display Drivers
- Package:
- 28-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
PCF2100CT/F1,112.pdf
- Description:
- IC DRVR 40 SEGMENT 28SO
- Quantity:
- Payment:
- Shipping:
Inventory:2,911
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Product details
Overview
PCF2100CT/F1,112 from NXP Semiconductors is a single-chip, silicon gate CMOS LCD driver IC designed for 40-segment, 1:2 multiplexed LCD displays. It operates from 2.25 V to 6.0 V, consumes as low as 20 µA typical supply current at 25 °C, and features a built-in oscillator with C-bus serial interface for microcontroller connectivity - used in portable instrumentation and industrial panel meters.
For engineers reviewing the PCF2100CT/F1,112 datasheet, PCF2100CT/F1,112 pinout, PCF2100CT/F1,112 application, or PCF2100CT/F1,112 equivalent, this page delivers verified technical context, exact SO28 package mapping, confirmed 22-bit word length and 40-segment drive capability, and two validated alternative parts for direct design evaluation.
Technical Context
The PCF2100CT/F1,112 implements a 22-bit serial shift register with dual A/B latches (BP1/BP2) controlled by CLB and DLEN signals. Its internal oscillator generates timing for LCD bias generation, supporting 60–100 Hz display frequency at VDD = 5 V with CO = 680 pF.
Bus control logic validates leading-zero detection, bit count integrity, and signal disturbance on DLEN/DATA lines - rejecting invalid frames without latch action. Power-on reset activates below 1.0–1.6 V VPOR threshold, ensuring deterministic initialization.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply voltage | 2.25 V to 6.0 V - supports battery-powered and wide-input industrial rails without external regulation |
| LCD segments | 40 segments - drives standard alphanumeric or custom 40-segment LCD glass in 1:2 multiplex configuration |
| Multiplex rate | 1:2 - reduces segment pin count and simplifies glass interconnect vs. static drive |
| Word length | 22 bits - includes 20 segment bits + 2 backplane select bits (DATA[21], DATA[20]) for BP1/BP2 latching |
| Display frequency | 60–100 Hz at VDD = 5 V - ensures flicker-free visibility while maintaining low power consumption |
| Supply current | 20 µA typical at 25 °C - enables multi-year operation from coin-cell batteries in portable meters |
| Input leakage | ±1 µA max - minimizes parasitic loading on microcontroller GPIOs driving C-bus lines |
Pinout & Package
PCF2100CT/F1,112 is housed in a plastic small outline package (SO28) per SOT136-1, with 28 leads and 7.5 mm body width - compatible with standard SOIC-28 PCB footprints and reflow soldering processes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CLB (Pin 1) | C-bus clock burst input | Edge-triggered load pulse synchronizing shift register output to BP1/BP2 latches |
| VDD (Pin 2) | Positive supply rail | Primary power source for logic and LCD driver stages; must be stable within 2.25–6.0 V |
| OSC (Pin 3) | Oscillator input | Connects to internal RC oscillator; tied to VSS to enable master/slave expansion mode |
| VSS (Pin 4) | Ground reference | Common return for logic, analog, and LCD bias circuits; requires low-impedance PCB plane |
| S20–S1 (Pins 5–24) | Segment driver outputs | 20 dedicated segment outputs (S1–S20); S21–S32 are not bonded in PCF2100C variant |
| BP2 (Pin 25) | Backplane driver output 2 | Second backplane output enabling 1:2 multiplexed LCD drive with alternating BP polarity |
| BP1 (Pin 26) | Backplane driver output 1 | First backplane output; paired with BP2 to generate AC bias across LCD segments |
| DATA (Pin 27) | C-bus data input | Serial data line accepting 22-bit frame; bit 21 selects BP1 (HIGH) or BP2 (LOW) latching |
| DLEN (Pin 28) | C-bus data enable | Active-low strobe initiating data capture and shift register load sequence |
Key Features
| Feature | Design Value |
|---|---|
| Single-chip LCD driver | Integrates oscillator, shift register, latches, and segment/backplane drivers - eliminates discrete timing and logic components |
| C-bus serial interface | 3-wire bus (DLEN, DATA, CLB) reduces MCU GPIO usage and PCB routing complexity vs. parallel interfaces |
| Power-on reset (POR) | Guarantees known initial state at power-up; triggers below 1.0–1.6 V VPOR to prevent undefined display artifacts |
| Stand-alone or expanded system | OSC-to-VSS configuration allows one PCF2100CT/F1,112 to synchronize multiple slaves - scalable for larger displays |
| Low-current operation | 20 µA typical IDD at 25 °C enables >5-year battery life in coin-cell–powered handheld instruments |
Applications
| Portable Instrumentation | Industrial Panel Meters |
|---|---|
|
Use Scenario: Battery-powered digital multimeter displaying voltage, current, and resistance values on a 40-segment LCD. IC Role / Device Role / Timing Role: PCF2100CT/F1,112 acts as the sole LCD segment/backplane driver, receiving serial commands from an MSP430 MCU and generating synchronized AC bias waveforms. Use Value: Enables ultra-low-power operation (20 µA typical) and eliminates external oscillator components via integrated RC oscillator. |
Use Scenario: DIN-rail mounted temperature controller with 4-digit numeric LCD and status indicators. IC Role / Device Role / Timing Role: PCF2100CT/F1,112 drives 40-segment display using 1:2 multiplexing, interfacing via C-bus to an ARM Cortex-M0+ host processor. Use Value: Reduces BOM count by integrating oscillator and driver logic, while supporting wide 2.25–6.0 V input for unregulated industrial supplies. |
| Home Appliance Displays | Medical Diagnostic Devices |
|
Use Scenario: Microwave oven control panel showing time, power level, and cooking mode on segmented LCD. IC Role / Device Role / Timing Role: PCF2100CT/F1,112 receives serial updates from appliance MCU and drives 40-segment display with flicker-free 75 Hz refresh. Use Value: Ensures consistent contrast and readability across temperature range (−40 °C to +85 °C ambient). |
Use Scenario: Portable blood glucose meter requiring reliable, low-power display under clinical lighting conditions. IC Role / Device Role / Timing Role: PCF2100CT/F1,112 provides ESD-hardened (±2000 V HBM) LCD drive with deterministic POR behavior for safety-critical startup. Use Value: Meets IEC 61340-5 ESD handling requirements and avoids display corruption during power cycling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LCD driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PCF2111CT/1,112 | 64-segment drive, 34-bit word length, VSO40 package (40-pin), 1:2 multiplex | Supports larger displays; requires PCB redesign for 40-pin footprint and additional segment traces | Select when >40 segments are needed; not drop-in due to pin count and package mismatch |
| PCF2112CT/1,112 | 32-segment drive, 34-bit word length, VSO40 package, 1:1 static multiplex | Enables higher-contrast static LCDs but lacks BP2 output and uses different latch control logic | Choose for static-drive LCDs where segment count ≤32 and no 1:2 multiplexing is required |
Compared with PCF2100CT/F1,112, PCF2111CT/1,112 offers higher segment density but demands layout changes, while PCF2112CT/1,112 trades multiplexing for static drive simplicity - neither is pin-compatible, making PCF2100CT/F1,112 optimal for cost-sensitive 40-segment 1:2 designs.
Availability
PCF2100CT/F1,112 is available at Aetrix Electronics and suitable for portable instrumentation, industrial panel meters, and home appliance displays requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for PCF2100CT/F1,112 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
NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT applications.
The PCF21xxC family was engineered specifically for low-power, microcontroller-connected LCD display systems - prioritizing integration, supply flexibility, and robustness in battery-operated and industrial environments.
FAQ
What is the maximum display frequency supported by the PCF2100CT/F1,112?
The PCF2100CT/F1,112 supports a display frequency of 60–100 Hz at VDD = 5 V with CO = 680 pF. This range ensures flicker-free visibility while maintaining low power consumption. Frequency scales with supply voltage and capacitive load - lower VDD or higher CO reduces achievable fLCD, as shown in Figures 14 and 15 of the datasheet.
Does the PCF2100CT/F1,112 require an external crystal or oscillator?
No, the PCF2100CT/F1,112 includes a built-in RC oscillator connected to the OSC pin. When left unconnected or tied to VSS, it operates autonomously. An external clock may be applied to OSC only if precise frequency control is required beyond the ±20 % tolerance of the internal oscillator.
How many LCD segments can the PCF2100CT/F1,112 drive, and what is its multiplex configuration?
The PCF2100CT/F1,112 drives exactly 40 LCD segments in a 1:2 multiplex configuration. It provides 20 segment outputs (S1–S20) and two backplane outputs (BP1, BP2) to generate the required AC bias waveform across all segments.
What package type is used for the PCF2100CT/F1,112, and is it RoHS-compliant?
The PCF2100CT/F1,112 uses the SO28 plastic small outline package (SOT136-1) with 28 leads and 7.5 mm body width. It is RoHS-compliant and qualified for lead-free reflow soldering per J-STD-020D, with peak temperature limits defined by package thickness and volume.
Can the PCF2100CT/F1,112 be used in a multi-driver expansion setup?
Yes - by connecting the OSC pin to VSS, the PCF2100CT/F1,112 enters master mode and can synchronize up to four slave PCF2100CT/F1,112 devices via shared CLB and DATA lines, enabling larger displays without increasing MCU pin count.
PCF2100CT/F1,112 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 28-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tube
- Product Status:
- Discontinued at Digi-Key
- Display Type:
- LCD
- Configuration:
- 40 Segment
- Interface:
- Serial
- Digits or Characters:
- -
- Current - Supply:
- 20 µA
- Voltage - Supply:
- 2.25V ~ 6V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 28-SO
PCF2100CT/F1,112 FAQ
1.How can I place an order for PCF2100CT/F1,112 through Aetrix?
Please submit a Request for Quotation (RFQ) for PCF2100CT/F1,112 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 PCF2100CT/F1,112 reliable?
The price and inventory of PCF2100CT/F1,112 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PCF2100CT/F1,112 is usually 5 days.
3.What payment methods are accepted for PCF2100CT/F1,112?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PCF2100CT/F1,112 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PCF2100CT/F1,112?
PCF2100CT/F1,112 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PCF2100CT/F1,112 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 PCF2100CT/F1,112?
For technical support, including PCF2100CT/F1,112 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PCF2100CT/F1,112 requirements.
6.How does Aetrix verify that PCF2100CT/F1,112 is sourced from the original manufacturer or authorized distributors?
All PCF2100CT/F1,112 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 PCF2100CT/F1,112 meets industry standards.
7.What is the process for return or replacement of PCF2100CT/F1,112?
All PCF2100CT/F1,112 units undergo pre-shipment inspection (PSI). If there is an issue with PCF2100CT/F1,112, 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 PCF2100CT/F1,112 part is unused and in its original packaging.
Return procedure for PCF2100CT/F1,112:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PCF2100CT/F1,112 Tags
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PCA8561AHN/AY
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