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NXP Semiconductors PCA85132U/2DA/Q1,0
- Part No.:
- PCA85132U/2DA/Q1,0
- Manufacturer:
- NXP Semiconductors
- Category:
- Display Drivers
- Package:
- Die
- Datasheet:
-
PCA85132U/2DA/Q1,0.pdf
- Description:
- IC DRVR MULTIPLE DIE
- Quantity:
- Payment:
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Inventory:3,669
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Product details
Overview
PCA85132U/2DA/Q1 from NXP Semiconductors is an AEC-Q100 qualified LCD controller and driver IC for automotive-grade static or multiplexed LCDs with up to 4 backplanes and 160 segments (640 total elements). It features I²C-bus interface (400 kHz), 160 × 4-bit display RAM, software-programmable frame frequency (60–90 Hz in 5 Hz steps), and internal LCD bias generation. It drives instrument cluster displays in automotive body control modules.
For engineers reviewing the PCA85132U/2DA/Q1 datasheet, PCA85132U/2DA/Q1 pinout, PCA85132U/2DA/Q1 application, or PCA85132U/2DA/Q1 equivalent, key selection criteria include its 1.8–5.5 V logic supply range, 1.8–8.0 V independent VLCD supply, selectable 1:1/1:2/1:3/1:4 multiplex drive modes, and compatibility with Chip-On-Glass (COG) LCD modules requiring minimal external components.
Technical Context
The PCA85132U/2DA/Q1 implements a dedicated LCD timing engine with internal oscillator (±3.9% accuracy at 5.0 V, 30 °C) or external clock input via OSC pin. Frame frequency is derived deterministically from clock source using fixed division ratios: fframe = fclk/64 × (80/74/68/60/56/53) depending on F[2:0] setting.
Its display control architecture includes hardware subaddressing across four 40-byte banks, auto-incremental data loading across bank boundaries, dual-bank display memory switching for blinking, and mode-set command-based configuration of drive mode (M[1:0]), bias (B), and enable (E) states - all executed without host CPU intervention during active display update.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| I²C-bus speed | 400 kHz - supports standard-mode Fast-mode I²C communication with microcontrollers without timing overhead. |
| Display capacity | Up to 640 elements (4 BP × 160 S) - enables 80×7-segment digits or 40×14-segment alphanumeric characters in automotive dashboards. |
| Frame frequency range | 60–90 Hz in 5 Hz steps - factory-calibrated internal oscillator ensures flicker-free viewing under varying temperature conditions. |
| Logic supply range | 1.8 V to 5.5 V - interoperable with 1.8 V, 3.3 V, and 5 V microcontroller I/O domains without level shifters. |
| LCD supply range | 1.8 V to 8.0 V - supports low-threshold polymer LCDs and high-threshold twisted nematic (TN) automotive displays. |
| Power consumption | IDD = 4 µA (logic), IDD(LCD) = 30 µA - ultra-low standby current extends battery life in always-on instrument clusters. |
| Drive modes | Static, 1:2, 1:3, or 1:4 multiplex - configurable via mode-set command to match exact LCD panel architecture. |
Pinout & Package
Bare die package: 197 bumps, 6.5 mm × 1.16 mm × 0.40 mm; intended for Chip-On-Glass (COG) assembly with hard bumps per ordering option /2DA/Q1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SDAACK (pins 1–3) | I²C acknowledge output | Open-drain signal confirming successful byte reception; tied to SDA in most applications per datasheet Section 14.3. |
| SDA (pins 4–6) | I²C serial data bidirectional | Shared data line for command/data transfer; requires external pull-up to VDD. |
| SCL (pins 7–9) | I²C serial clock input | Master-generated clock synchronizing all I²C transactions; no internal pull-up. |
| VDD (pins 11–13) | Logic supply voltage | Provides power for digital core and I²C interface; decoupling capacitor required near die edge. |
| VLCD (pins 27–29) | LCD panel supply | Independent high-voltage rail for segment/backplane drive; may exceed VDD up to 8.0 V. |
| BP0–BP3 (pins 30, 31, 112–115, 196, 197) | LCD backplane outputs | Dual-pin-bar layout allows parallel connection of matching BP pins (e.g., top+bottom BP0) to increase drive strength. |
| S0–S159 (pins 32–111, 116–195) | LCD segment outputs | 160 fully buffered outputs; each drives one LCD electrode; no external drivers needed. |
Key Features
| Feature | Design Value |
|---|---|
| Automotive qualification | AEC-Q100 Grade 2 (−40 °C to +105 °C) - certified for under-hood and instrument panel deployment. |
| Cascadable architecture | SYNC pin enables daisy-chaining up to 8 devices for 5120-element displays - eliminates need for multiple I²C addresses. |
| Configurable bias generation | Internal 3-resistor divider with switchable center tap - delivers precise 1/2 or 1/3 bias for 1:2/1:3/1:4 multiplex without external resistors. |
| Versatile blinking control | Hardware-based blink-select command supports normal or alternate-RAM-bank blinking at 3 frequencies - reduces MCU polling overhead. |
| COG-optimized layout | Backplane and segment pins distributed across both top and bottom bump rows - simplifies fan-out routing on narrow glass substrates. |
Applications
| Automotive Instrument Clusters | Industrial Control Panels |
|---|---|
|
Use Scenario: Digital speedometer, fuel gauge, and warning indicator display in vehicle dashboards. IC Role / Device Role / Timing Role: Primary LCD controller/driver managing 1:4 multiplexed TN display with 4 backplanes and 160 segments. Use Value: AEC-Q100 qualification ensures reliability over 15-year automotive lifecycle; 60–90 Hz frame rate eliminates perceptible flicker at all ambient temperatures. |
Use Scenario: Status and parameter readout on factory HMIs with segmented alphanumeric LCDs. IC Role / Device Role / Timing Role: Standalone segment driver interfacing to ARM Cortex-M microcontroller via I²C bus. Use Value: 1.8–5.5 V logic supply range matches industrial MCU I/O voltages; no external bias components reduce BOM count and PCB area. |
| Medical Device Displays | Smart Appliance UIs |
|
Use Scenario: Battery-powered patient monitor showing vital signs using low-power static LCD. IC Role / Device Role / Timing Role: Static-drive mode controller delivering 160-segment output with zero DC bias on LCD electrodes. Use Value: 4 µA logic supply current extends battery runtime; internal oscillator eliminates need for external crystal in space-constrained designs. |
Use Scenario: Oven timer and function display using 14-segment alphanumeric characters. IC Role / Device Role / Timing Role: Cascaded LCD driver (via SYNC pin) enabling 40-character display from single I²C address. Use Value: Hardware subaddressing and auto-incremental RAM access minimize I²C transaction count per display update - improves UI responsiveness. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LCD driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PCF8576D/1,118 | Lower segment count (144 vs. 160); no cascading SYNC pin; 1.8–6.0 V VLCD range. | Best suited for smaller 32–48 character displays where full 640-element capability is unnecessary. | Select PCF8576D/1,118 when cost sensitivity outweighs need for automotive qualification and extended VLCD range. |
| MAX6955ATL+ | LED/LCD dual-mode driver; 28-segment max per device; requires external bias resistors; no AEC-Q100 rating. | Targeted at mixed LED+LCD consumer appliances, not automotive or high-reliability industrial use. | Choose MAX6955ATL+ only for non-automotive designs requiring shared LED/LCD driver functionality. |
Compared with PCF8576D/1,118 and MAX6955ATL+, the PCA85132U/2DA/Q1 uniquely combines AEC-Q100 compliance, 160-segment drive, cascading capability, and integrated bias generation - making it the sole choice for scalable, high-reliability automotive LCD systems.
Availability
PCA85132U/2DA/Q1 is available at Aetrix Electronics and suitable for automotive instrument clusters, industrial HMI panels, medical device displays, and smart appliance user interfaces requiring stable component supply across multi-year production cycles.
Supply support for PCA85132U/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 applications.
The PCA85132U/2DA/Q1 belongs to NXP's automotive-qualified LCD peripheral family, designed specifically to replace discrete bias networks and microcontroller GPIO expansion in cost-sensitive, space-constrained dashboard display subsystems.
FAQ
What is the maximum number of LCD elements the PCA85132U/2DA/Q1 can drive?
The PCA85132U/2DA/Q1 drives up to 640 LCD elements - calculated as 4 backplanes × 160 segments. This supports configurations including 80 seven-segment digits, 40 fourteen-segment alphanumeric characters, or arbitrary graphics layouts within that element limit. The PCA85132U/2DA/Q1 achieves this using internal multiplex timing and dedicated segment/backplane drivers without external components.
Does the PCA85132U/2DA/Q1 require external bias resistors for LCD operation?
No, the PCA85132U/2DA/Q1 integrates a three-resistor LCD bias network with switchable center tap, enabling 1/2 or 1/3 bias generation directly from VLCD and VSS. This eliminates external resistors for all supported drive modes (static, 1:2, 1:3, 1:4), reducing BOM count and PCB footprint. The PCA85132U/2DA/Q1 bias circuitry is optimized for automotive-grade stability across temperature and voltage variations.
How does the PCA85132U/2DA/Q1 support cascading for larger displays?
The PCA85132U/2DA/Q1 uses the SYNC pin to synchronize frame timing between multiple devices. When cascaded, the CLK output of the first PCA85132U/2DA/Q1 drives the CLK input of the next, enabling coordinated display updates across up to eight devices for 5120-element LCDs. This architecture avoids I²C address conflicts and maintains deterministic timing - a capability not present in non-cascadable alternatives like the PCF8576D/1,118.
What is the frame frequency adjustment resolution of the PCA85132U/2DA/Q1?
The PCA85132U/2DA/Q1 provides frame frequency adjustment in precise 5 Hz steps from 60 Hz to 90 Hz, controlled by the frequency-ctrl command (F[2:0]). Each setting corresponds to a calibrated internal oscillator division ratio (e.g., F[2:0]=011 yields 75 Hz nominal frame rate). This granularity ensures optimal flicker suppression across diverse LCD panel characteristics and ambient lighting conditions - a key requirement validated in automotive EMC testing.
Is the PCA85132U/2DA/Q1 compatible with Chip-On-Glass (COG) LCD modules?
Yes, the PCA85132U/2DA/Q1 is explicitly designed for COG integration: its bare-die form factor (6.5 mm × 1.16 mm), dual-row bump layout for BP/segment pins, and elimination of external bias components simplify direct bonding to glass substrates. The PCA85132U/2DA/Q1 datasheet confirms COG compatibility in Section 2 and Figure 37 mechanical drawings - making it ideal for space-constrained automotive cluster modules.
PCA85132U/2DA/Q1,0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- Die
- Packaging:
- Bulk
- Product Status:
- Active
- Display Type:
- LCD
- Configuration:
- Multiple
- Interface:
- I2C
- Digits or Characters:
- Any Digit Type
- Current - Supply:
- 60 µA
- Voltage - Supply:
- 1.8V ~ 5.5V
- Operating Temperature:
- -40°C ~ 95°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- Die
PCA85132U/2DA/Q1,0 FAQ
1.How can I place an order for PCA85132U/2DA/Q1,0 through Aetrix?
Please submit a Request for Quotation (RFQ) for PCA85132U/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 PCA85132U/2DA/Q1,0 reliable?
The price and inventory of PCA85132U/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 PCA85132U/2DA/Q1,0 is usually 5 days.
3.What payment methods are accepted for PCA85132U/2DA/Q1,0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PCA85132U/2DA/Q1,0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PCA85132U/2DA/Q1,0?
PCA85132U/2DA/Q1,0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PCA85132U/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 PCA85132U/2DA/Q1,0?
For technical support, including PCA85132U/2DA/Q1,0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PCA85132U/2DA/Q1,0 requirements.
6.How does Aetrix verify that PCA85132U/2DA/Q1,0 is sourced from the original manufacturer or authorized distributors?
All PCA85132U/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 PCA85132U/2DA/Q1,0 meets industry standards.
7.What is the process for return or replacement of PCA85132U/2DA/Q1,0?
All PCA85132U/2DA/Q1,0 units undergo pre-shipment inspection (PSI). If there is an issue with PCA85132U/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 PCA85132U/2DA/Q1,0 part is unused and in its original packaging.
Return procedure for PCA85132U/2DA/Q1,0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PCA85132U/2DA/Q1,0 Tags
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