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NXP Semiconductors PCA85133U/2DA/Q1,0
- Part No.:
- PCA85133U/2DA/Q1,0
- Manufacturer:
- NXP Semiconductors
- Category:
- Display Drivers
- Package:
- -
- Datasheet:
-
PCA85133U/2DA/Q1,0.pdf
- Description:
- IC LCD DRIVER UNIV UNCASED
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Product details
Overview
PCA85133U/2DA/Q1 from NXP Semiconductors is an AEC-Q100 qualified automotive LCD controller and driver IC that interfaces microcontrollers to static or multiplexed LCDs with up to 4 backplanes and 80 segments. It supports 1:1 to 1:4 multiplexing, 1⁄2 or 1⁄3 bias configuration, and 82 Hz / 110 Hz frame frequencies. It operates from 1.8 V to 5.5 V logic supply and drives VLCD up to 8.0 V for high-threshold twisted nematic displays - used in instrument clusters and center console displays.
For engineers reviewing the PCA85133U/2DA/Q1 datasheet, PCA85133U/2DA/Q1 pinout, PCA85133U/2DA/Q1 application, or PCA85133U/2DA/Q1 equivalent, key selection criteria include I²C-bus interface timing (400 kHz), display RAM organization (80 × 4 bit), backplane output flexibility (BP0–BP3), and cascade synchronization capability via SYNC pin for multi-chip LCD systems.
Technical Context
The PCA85133U/2DA/Q1 implements a fully integrated LCD drive architecture with internal voltage-follower bias generation, programmable frame frequency selection (via FF pin), and hardware subaddressing across cascaded devices. Its oscillator supports both internal (OSC tied to VSS) and external clock modes, with CLK serving as output (internal) or input (external).
Display data flow is managed by a dual-addressing system: a data pointer auto-increments per drive mode (by 8 in static, 4 in 1:2, 3 in 1:3, 2 in 1:4), while a subaddress counter enables seamless RAM boundary crossing across daisy-chained devices - critical for large segmented displays requiring >320 elements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Display Capacity | Up to 4 backplanes × 80 segments = 320 LCD elements; supports 40×7-seg or 20×14-seg alphanumeric layouts. |
| I²C Interface Speed | 400 kHz - enables fast display updates without MCU resource overhead; compatible with standard I²C controllers. |
| Frame Frequency | Selectable 82 Hz or 110 Hz (typical) - ensures flicker-free visibility in automotive cabin lighting conditions. |
| Supply Ranges | VDD: 1.8 V–5.5 V; VLCD: 2.5 V–8.0 V - allows direct drive of low- and high-threshold LCD modules without external bias circuitry. |
| Operating Temperature | −40 °C to +95 °C - meets extended automotive ambient requirements for dashboard and cluster applications. |
| Display RAM | 80 × 4 bit static RAM - stores full segment state per backplane; supports auto-incremental loading and bank switching. |
| AEC-Q100 Grade | Qualified to Grade 2 (−40 °C to +105 °C junction) - validated for automotive powertrain and body electronics use. |
Pinout & Package
Bare die package: 110 bumps, 4.16 mm × 1.07 mm × 0.40 mm; substrate (rear side) electrically isolated and referenced to VSS potential.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SDAACK (1–3) | I²C acknowledge output | Signals successful byte receipt on I²C bus; required for multi-master arbitration and error detection. |
| SDA (4–6) | I²C serial data bidirectional | Carries command/data packets and ACK/NACK responses; requires pull-up to VDD. |
| SCL (7–9) | I²C serial clock input | Master-generated clock synchronizes all I²C transfers; no internal pull-up. |
| CLK (10) | Clock I/O | Outputs internal oscillator signal when OSC = VSS; becomes external clock input when OSC = VDD. |
| VDD (11–13) | Logic supply | Power source for digital core and I²C interface; decoupling capacitor mandatory near die. |
| SYNC (14) | Cascade sync I/O | Propagates timing alignment signal between daisy-chained PCA85133 devices to prevent display tearing. |
| OSC (15) | Oscillator mode select | Tied to VSS enables internal RC oscillator; tied to VDD disables internal oscillator and enables external clock. |
| FF (16) | Frame frequency select | Configures 82 Hz (FF = VDD) or 110 Hz (FF = VSS); must not float - requires defined logic level. |
| A0–A2 (17–19) | Hardware subaddress inputs | Set device address offset for cascaded configurations; enable automatic RAM wrap-around across chips. |
| SA0 (20) | Slave address bit | Extends I²C slave address to support up to 8 devices on same bus (combined with A0–A2). |
| VSS (21–23) | Ground reference | Common return for logic and LCD bias circuits; substrate connection point - must be isolated from PCB ground plane. |
| VLCD (24–26) | LCD supply voltage | Provides high-voltage bias for LCD segments/backplanes; independent of VDD - enables mixed-supply designs. |
| BP0–BP3 (27,28,109,110) | LCD backplane outputs | Drive complementary waveforms per selected multiplex mode; BP0–BP3 can be paralleled in static mode for higher current. |
| S0–S79 (29–108) | LCD segment outputs | Direct-drive outputs for up to 80 LCD segments; open-circuit unused pins - no external resistors needed. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated LCD bias generator | Internal voltage divider with switchable impedance delivers precise 1⁄2 or 1⁄3 bias - eliminates external resistor networks and reduces BOM count. |
| Cascadable architecture | SYNC pin and hardware subaddressing (A0–A2) enable daisy-chaining up to 64 devices for 5120-segment displays - scalable for large instrument panels. |
| Flexible drive mode selection | Configurable 1:1 (static), 1:2, 1:3, or 1:4 multiplexing via command register - matches diverse LCD module architectures without hardware change. |
| Versatile blinking control | Independent blink enable per segment group - supports warning indicators (e.g., turn signal, seatbelt) with synchronized on/off timing. |
| Auto-incremental RAM loading | Data pointer increments by mode-specific step (2–8) - minimizes I²C transaction count during full-screen updates and simplifies firmware buffer management. |
| Chip-On-Glass (COG) compatibility | Bare-die form factor and bump bonding design - enables direct integration onto LCD glass substrates for compact, high-reliability automotive displays. |
Applications
| Automotive Instrument Cluster | Center Console Display |
|---|---|
Use Scenario: Driving environment with variable ambient light, vibration, and temperature extremes. IC Role / Device Role / Timing Role: Primary LCD controller driving analog gauge needles, digital speed readouts, and warning icons via 1:4 multiplexed glass. Use Value: AEC-Q100 qualification and −40 °C to +95 °C operation ensure reliability; 110 Hz frame rate prevents perceptible flicker under LED cabin lighting. |
Use Scenario: Infotainment subsystem requiring multi-function status indication (HVAC, media, phone). IC Role / Device Role / Timing Role: Secondary display driver handling alphanumeric menus and icon-based feedback using 14-segment characters. Use Value: 80-segment capacity supports 20×14-seg layout; independent VLCD supply enables optimal contrast on guest-host LCD modules. |
| Driver Information Display (DID) | Electronic Rearview Mirror |
Use Scenario: Compact HUD-style display mounted near steering column showing speed, navigation cues, ADAS alerts. IC Role / Device Role / Timing Role: Low-power static-mode driver for monochrome segment-based readouts with persistent visibility. Use Value: Static drive mode delivers full VLCD RMS voltage per segment; 1.8 V minimum VDD supports energy-efficient MCU co-location. |
Use Scenario: Wide-temperature rearview camera overlay requiring anti-glare, high-contrast segment graphics. IC Role / Device Role / Timing Role: Cascaded PCA85133 pair driving 128-segment mirror bezel display with synchronized blink for blind-spot warnings. Use Value: SYNC pin coordination eliminates inter-device timing skew; 8.0 V VLCD capability ensures readability on high-threshold TN LCDs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LCD controller and driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PCF8576DT/1,118 | 64-segment capacity; no 1:4 multiplex support; lower max VLCD (6.5 V); lacks SYNC pin for cascading. | Suitable for smaller displays (e.g., basic HVAC panels) but cannot scale to 320+ elements or match PCA85133U/2DA/Q1's automotive thermal range. | Select only for cost-sensitive non-critical interior applications where segment count ≤64 and cascade is unnecessary. |
| RA8835HN | Parallel interface only (no I²C); 132 × 64 dot-matrix support; higher power consumption; no AEC-Q100 qualification. | Targets graphical LCDs rather than segment-based automotive instrumentation; requires dedicated MCU GPIO resources and external bias. | Choose only when migrating from character-based to pixel-based displays and I²C connectivity is not required. |
Compared with PCF8576DT/1,118 and RA8835HN, the PCA85133U/2DA/Q1 uniquely combines AEC-Q100 compliance, 80-segment scalability, I²C efficiency, and cascade-ready architecture - making it the only option qualified for safety-critical automotive segment displays requiring >64 elements and multi-chip synchronization.
Availability
PCA85133U/2DA/Q1 is available at Aetrix Electronics and suitable for automotive instrument clusters, center console displays, and driver information systems requiring stable component supply across long production lifecycles.
Supply support for PCA85133U/2DA/Q1 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 leader focused on secure connectivity solutions for automotive, industrial, and IoT markets, with deep expertise in automotive-grade mixed-signal ICs.
The PCA85133U/2DA/Q1 belongs to NXP's automotive LCD driver product line, engineered specifically for reliable, low-power, high-contrast segment display control in harsh vehicle environments - targeting instrument clusters, infotainment bezels, and ADAS status indicators.
FAQ
What is the maximum number of LCD segments the PCA85133U/2DA/Q1 can drive?
The PCA85133U/2DA/Q1 drives up to 80 segment outputs (S0–S79) and supports up to 4 backplanes (BP0–BP3), enabling configurations of up to 320 distinct LCD elements (e.g., 40×7-segment digits or 20×14-segment characters). Unused segment or backplane pins may be left open-circuit without affecting operation.
Does the PCA85133U/2DA/Q1 require external components for LCD bias generation?
No. The PCA85133U/2DA/Q1 includes an internal LCD bias generator with voltage-follower buffers and switchable impedance for 1⁄2 or 1⁄3 bias - eliminating external resistors or capacitors. Only VDD, VSS, and VLCD supplies and direct connections to the LCD panel are required.
How does the PCA85133U/2DA/Q1 support cascading for larger displays?
The PCA85133U/2DA/Q1 uses the SYNC pin for timing alignment and hardware subaddressing (A0–A2 pins) to enable seamless RAM boundary crossing. When display data exceeds one device's 80×4-bit RAM, it automatically wraps to the next PCA85133U/2DA/Q1 in the chain - supporting up to 5120 segments.
What are the valid frame frequency options for the PCA85133U/2DA/Q1?
The PCA85133U/2DA/Q1 offers two factory-trimmed frame frequencies: 82 Hz (when FF pin is tied to VDD) and 110 Hz (when FF pin is tied to VSS). These values are typical and optimized for flicker-free visibility in automotive cabin lighting; external clock mode bypasses FF pin selection.
Is the PCA85133U/2DA/Q1 compatible with Chip-On-Glass (COG) LCD modules?
Yes. The PCA85133U/2DA/Q1 is explicitly designed for COG compatibility: its bare-die package (PCA85133U/2DA/Q1) features 110 bumps and mechanical dimensions (4.16 mm × 1.07 mm × 0.40 mm) optimized for direct bonding to LCD glass substrates - common in automotive cluster modules.
PCA85133U/2DA/Q1,0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- *
- Package/Case:
- -
- Packaging:
- Tray
- Product Status:
- Active
- Display Type:
- -
- Configuration:
- -
- Interface:
- -
- Digits or Characters:
- -
- Current - Supply:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -
- Grade:
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- Qualification:
- -
- Mounting Type:
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- Supplier Device Package:
- -
PCA85133U/2DA/Q1,0 FAQ
1.How can I place an order for PCA85133U/2DA/Q1,0 through Aetrix?
Please submit a Request for Quotation (RFQ) for PCA85133U/2DA/Q1,0 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 PCA85133U/2DA/Q1,0 reliable?
The price and inventory of PCA85133U/2DA/Q1,0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PCA85133U/2DA/Q1,0 is usually 5 days.
3.What payment methods are accepted for PCA85133U/2DA/Q1,0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PCA85133U/2DA/Q1,0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PCA85133U/2DA/Q1,0?
PCA85133U/2DA/Q1,0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PCA85133U/2DA/Q1,0 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 PCA85133U/2DA/Q1,0?
For technical support, including PCA85133U/2DA/Q1,0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PCA85133U/2DA/Q1,0 requirements.
6.How does Aetrix verify that PCA85133U/2DA/Q1,0 is sourced from the original manufacturer or authorized distributors?
All PCA85133U/2DA/Q1,0 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 PCA85133U/2DA/Q1,0 meets industry standards.
7.What is the process for return or replacement of PCA85133U/2DA/Q1,0?
All PCA85133U/2DA/Q1,0 units undergo pre-shipment inspection (PSI). If there is an issue with PCA85133U/2DA/Q1,0, 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 PCA85133U/2DA/Q1,0 part is unused and in its original packaging.
Return procedure for PCA85133U/2DA/Q1,0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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