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NXP Semiconductors PCA85162T/Q900/1HL
- Part No.:
- PCA85162T/Q900/1HL
- Manufacturer:
- NXP Semiconductors
- Category:
- Display Drivers
- Package:
- 48-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
PCA85162T/Q900/1HL.pdf
- Description:
- IC DRVR 32 SEGMENT 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,987
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Product details
Overview
The PCA85162T/Q900/1HL from NXP Semiconductors is an AEC-Q100-qualified automotive LCD driver IC supporting static or multiplexed displays with up to 4 backplanes and 32 segments. It integrates display RAM, internal LCD bias generation, I²C-bus interface (400 kHz), and configurable drive modes (static, 1:2, 1:3, 1:4) for use in instrument clusters, HVAC controls, and body electronics.
For engineers reviewing the PCA85162T/Q900/1HL datasheet, PCA85162T/Q900/1HL pinout, PCA85162T/Q900/1HL application, or PCA85162T/Q900/1HL equivalent, this device delivers verified low-multiplex-rate LCD control with auto-incremented RAM addressing, hardware subaddressing, display memory bank switching, and versatile blinking-critical for automotive dashboard display design and qualification.
Technical Context
The PCA85162T/Q900/1HL implements a dedicated LCD controller core with integrated voltage-follower bias buffers and programmable frame timing derived from either internal oscillator (OSC pin tied to VSS) or external clock (OSC tied to VDD). Its display RAM is organized as 32 × 4-bit with row-to-backplane mapping (BP0–BP3) and column-to-segment mapping (S0–S31).
It supports four distinct LCD drive configurations via mode-set command: static (1 BP), 1:2 (2 BP, 1/2 or 1/3 bias), 1:3 (3 BP, 1/3 bias), and 1:4 (4 BP, 1/3 bias), each with corresponding RMS on/off voltage ratios (e.g., 0.577VLCD / 0.333VLCD in 1:4 mode). Blinking is implemented via bank-select and blink-select commands, enabling full-display or RAM-bank-alternate blinking without host overhead.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Display Capacity | Drives up to 128 LCD elements (e.g., 16×7-segment digits or 8×14-segment alphanumerics) using 4 backplanes and 32 segments |
| I²C Interface Speed | 400 kHz maximum - enables fast display updates with minimal MCU intervention and auto-incremented addressing |
| Supply Voltage Range | Logic: 1.8 V to 5.5 V; LCD: 2.5 V to 8.0 V - supports low-threshold and high-threshold twisted nematic LCDs |
| Operating Temperature | −40 °C to +95 °C - qualified per AEC-Q100 Grade 3 for under-hood and cabin automotive applications |
| Display RAM | 32 × 4-bit static RAM with bank-switching support in static/duplex modes - stores segment states independently per backplane row |
| Drive Mode Flexibility | Selectable via mode-set command: static, 1:2, 1:3, or 1:4 multiplex - allows matching to exact LCD module architecture without redesign |
| Bias Generation | Internal fractional bias (1/2 or 1/3) with voltage-follower buffers - eliminates external resistors and improves stability across temperature |
Pinout & Package
TSSOP48 package (SOT362-1), 6.1 mm body width, lead pitch 0.5 mm - suitable for automated SMT assembly and space-constrained automotive PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SDA (Pin 10) | I²C serial data line | Open-drain bidirectional interface; requires external pull-up; handles command/data transfers with continuation bit protocol |
| SCL (Pin 11) | I²C serial clock input | Master-generated clock up to 400 kHz; synchronizes all I²C transactions including mode-set and bank-select commands |
| BP0–BP3 (Pins 22–25) | LCD backplane outputs | Direct-drive outputs mapped to RAM rows 0–3; support pairing (e.g., BP0/BP2 in 1:2 mode) for enhanced current capability |
| S0–S31 (Pins 26–48, 1–9) | LCD segment outputs | 32 dedicated outputs mapped to RAM columns; open-circuit unused pins - no external drivers required |
| VLCD (Pin 21) | LCD supply voltage input | Independent supply rail (2.5–8.0 V); sets LCD contrast and RMS voltage levels; enables temperature compensation |
| OSC (Pin 15) | Oscillator enable control | Tie to VSS for internal oscillator; tie to VDD for external clock input on CLK pin - determines frame rate source |
| SYNC (Pin 12) | Cascade synchronization I/O | Enables daisy-chained operation; output of upstream device drives input of downstream device to align frame timing |
Key Features
| Feature | Design Value |
|---|---|
| Auto-incremented RAM addressing | Reduces I²C transaction count during bulk display updates - single load-data-pointer command enables sequential byte writes to 32 RAM locations |
| Hardware subaddressing (A0–A2, SA0) | Supports up to 8 independent PCA85162T/Q900/1HL devices on same I²C bus without address conflict - essential for multi-display systems |
| Display memory bank switching | Enables flicker-free page swaps in static/duplex modes by toggling active RAM banks - eliminates visible update artifacts during animation |
| Versatile blinking modes | Full-display blink (via E-bit toggle) or RAM-bank-alternate blink (via blink-select command) - configurable frequency without MCU timer resource usage |
| Independent logic/LCD supplies | Allows VDD = 3.3 V (MCU domain) while VLCD = 5.0 V (LCD contrast optimization) - decouples noise-sensitive logic from high-voltage display drive |
Applications
| Automotive Instrument Cluster | Climate Control Panel |
|---|---|
Use Scenario: Driving digital speedometer, fuel gauge, and warning indicators in OEM dashboards. IC Role / Device Role / Timing Role: Primary LCD controller driving 4-backplane segmented display; manages real-time segment updates via I²C from MCU. Use Value: AEC-Q100 qualification ensures reliability at 95 °C ambient; 1:4 multiplex mode matches common 4-BP automotive LCD modules without external bias components. |
Use Scenario: Displaying temperature setpoints, fan speed, and mode icons on HVAC control units. IC Role / Device Role / Timing Role: Standalone LCD driver handling 14-segment alphanumeric characters and custom icons; uses bank-select for smooth menu transitions. Use Value: 32 × 4-bit RAM stores full UI state; independent VLCD supply (up to 8.0 V) enables high-contrast operation with guest-host LCDs in varying cabin lighting. |
| Body Control Module (BCM) Display | Electronic Parking Brake Indicator |
Use Scenario: Small-format status display for door lock, window position, and lighting controls in central BCM. IC Role / Device Role / Timing Role: Low-pin-count LCD interface reducing MCU GPIO usage; leverages I²C subaddressing to share bus with other peripherals. Use Value: Wide 1.8–5.5 V VDD range allows direct connection to 1.8 V or 3.3 V system rails; low power consumption extends battery backup runtime. |
Use Scenario: Safety-critical red/green indicator for parking brake engagement status on center console. IC Role / Device Role / Timing Role: Dedicated blink controller - implements certified blink pattern (e.g., ISO 26262 ASIL-B compliant timing) via hardware blink-select command. Use Value: Hardware-based blinking eliminates software timing jitter; blink frequency derived directly from stable internal oscillator - meets functional safety timing integrity requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LCD driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PCF8576D/1/1 | 32 × 4 driver with identical TSSOP48 package and I²C interface, but lacks AEC-Q100 qualification and extended −40 °C to +95 °C range | Targeted at industrial/consumer displays; not approved for automotive safety-critical functions | Select only for non-automotive designs where AEC-Q100 is not mandated |
| MAX6955ATL+T | 32-segment LED/LCD driver with 16 × 8 RAM; supports LED multiplexing but has fixed 1:4 LCD bias and no bank-switching capability | Optimized for mixed LED/LCD panels; lacks PCA85162T/Q900/1HL's flexible bias selection and RAM organization for pure LCD use | Choose when dual LED/LCD output is required; avoid when precise LCD bias control or bank-switching is needed |
Compared with PCF8576D/1/1 and MAX6955ATL+T, the PCA85162T/Q900/1HL uniquely combines AEC-Q100 qualification, selectable 1/2 or 1/3 bias, hardware bank switching, and 400 kHz I²C - making it the only drop-in solution for automotive-grade 4-backplane LCDs requiring functional safety compliance and thermal robustness.
Availability
The PCA85162T/Q900/1HL is available at Aetrix Electronics and suitable for automotive instrument clusters, climate control panels, and body control module displays requiring stable component supply across extended temperature and lifecycle requirements.
Supply support for PCA85162T/Q900/1HL 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 specializing in secure connectivity solutions for automotive, industrial, and IoT applications, with leadership in automotive microcontrollers and analog interface ICs.
The PCA85162T/Q900/1HL belongs to NXP's automotive-qualified LCD driver product line, designed specifically for reliable, low-power, and pin-efficient control of segmented LCDs in harsh-temperature vehicle environments.
FAQ
What is the maximum LCD segment count supported by the PCA85162T/Q900/1HL?
The PCA85162T/Q900/1HL supports up to 32 segments and 4 backplanes, enabling control of up to 128 LCD elements - such as 16 seven-segment digits or 8 fourteen-segment alphanumeric characters. This capacity is fixed in hardware and confirmed in the PCA85162T/Q900/1HL datasheet Section 1 and Table 12.
Does the PCA85162T/Q900/1HL require external components for LCD bias generation?
No, the PCA85162T/Q900/1HL includes an internal LCD bias generator with voltage-follower buffers and supports selectable 1/2 or 1/3 bias configurations - eliminating external resistor networks. This is explicitly stated in Section 2 Features and Benefits and Section 6.3.1 of the PCA85162T/Q900/1HL datasheet.
Can the PCA85162T/Q900/1HL drive a 1:3 multiplexed LCD?
Yes, the PCA85162T/Q900/1HL fully supports 1:3 multiplex drive mode with 1/3 bias configuration, as defined in the mode-set command (Table 6) and verified in waveform diagrams (Figure 9) and biasing characteristics (Table 13) of the PCA85162T/Q900/1HL datasheet Rev. 4.2.
What is the function of the SYNC pin on the PCA85162T/Q900/1HL?
The SYNC pin (Pin 12) provides cascade synchronization for daisy-chained PCA85162T/Q900/1HL devices, ensuring aligned LCD frame timing across multiple drivers. When unused, it must be left open - as specified in Table 3 (Pin Description) and Section 5.2 of the PCA85162T/Q900/1HL datasheet.
Is the PCA85162T/Q900/1HL compatible with 1.8 V microcontrollers?
Yes, the PCA85162T/Q900/1HL operates with VDD from 1.8 V to 5.5 V and supports standard I²C voltage levels - enabling direct interface with 1.8 V, 2.5 V, 3.3 V, and 5 V MCUs without level shifters, as confirmed in Section 2 Features and Benefits and Absolute Maximum Ratings of the PCA85162T/Q900/1HL datasheet.
PCA85162T/Q900/1HL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 48-TFSOP (0.240", 6.10mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Display Type:
- LCD
- Configuration:
- 32 Segment
- Interface:
- I2C
- Digits or Characters:
- -
- Current - Supply:
- 80 µA
- Voltage - Supply:
- 1.8V ~ 5.5V
- Operating Temperature:
- -40°C ~ 95°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TSSOP
PCA85162T/Q900/1HL FAQ
1.How can I place an order for PCA85162T/Q900/1HL through Aetrix?
Please submit a Request for Quotation (RFQ) for PCA85162T/Q900/1HL 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 PCA85162T/Q900/1HL reliable?
The price and inventory of PCA85162T/Q900/1HL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PCA85162T/Q900/1HL is usually 5 days.
3.What payment methods are accepted for PCA85162T/Q900/1HL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PCA85162T/Q900/1HL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PCA85162T/Q900/1HL?
PCA85162T/Q900/1HL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PCA85162T/Q900/1HL 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 PCA85162T/Q900/1HL?
For technical support, including PCA85162T/Q900/1HL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PCA85162T/Q900/1HL requirements.
6.How does Aetrix verify that PCA85162T/Q900/1HL is sourced from the original manufacturer or authorized distributors?
All PCA85162T/Q900/1HL 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 PCA85162T/Q900/1HL meets industry standards.
7.What is the process for return or replacement of PCA85162T/Q900/1HL?
All PCA85162T/Q900/1HL units undergo pre-shipment inspection (PSI). If there is an issue with PCA85162T/Q900/1HL, 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 PCA85162T/Q900/1HL part is unused and in its original packaging.
Return procedure for PCA85162T/Q900/1HL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PCA85162T/Q900/1HL Tags
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PCA8561AHN/AY
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