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NXP Semiconductors PCA85162T/Q900/1,1
- Part No.:
- PCA85162T/Q900/1,1
- Manufacturer:
- NXP Semiconductors
- Category:
- Display Drivers
- Package:
- 48-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
PCA85162T/Q900/1,1.pdf
- Description:
- IC DRVR 32 SEGMENT 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,675
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Product details
Overview
PCA85162T/Q900/1 from NXP Semiconductors is an AEC-Q100 qualified automotive LCD driver IC supporting static and 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 (1:2/1:3/1:4 multiplex or static) for use in instrument clusters and dashboard displays.
For engineers reviewing the PCA85162T/Q900/1 datasheet, PCA85162T/Q900/1 pinout, PCA85162T/Q900/1 application, or PCA85162T/Q900/1 equivalent, key selection factors include its 32 × 4-bit display RAM, selectable 1/2 or 1/3 LCD bias, independent VLCD logic supply (up to 8.0 V), extended temperature range (−40 °C to +95 °C), and TSSOP48 package compatibility with automotive layout constraints.
Technical Context
The PCA85162T/Q900/1 implements a dedicated LCD controller with hardware subaddressing, auto-incremented RAM addressing, and dual-bank display memory switching for static and duplex drive modes. Its internal oscillator (enabled via OSC–VSS) or external clock input (OSC–VDD) drives frame timing, while SYNC supports cascading for larger displays.
It features voltage-follower LCD bias buffers, programmable blink modes (normal or alternate bank), and command-based configuration of multiplex ratio, bias level, and display enable state. All 32 segment outputs (S0–S31) and four backplane outputs (BP0–BP3) are directly driven with no external components required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Display Capacity | Up to 32 segments × 4 backplanes = 128 LCD elements (e.g., 16×7-segment digits or 8×14-segment alphanumerics) |
| I²C Interface Speed | 400 kHz - enables fast microcontroller communication without bus contention in multi-device automotive systems |
| Supply Voltage Range | VDD: 1.8 V to 5.5 V; VLCD: 2.5 V to 8.0 V - supports low-threshold and high-threshold twisted nematic LCDs |
| Operating Temperature | −40 °C to +95 °C - validated for under-hood and dashboard environments per AEC-Q100 Grade 2 |
| Display RAM | 32 × 4-bit static RAM - stores full segment/backplane state with bank-switching for blinking and dynamic updates |
| Multiplex Modes | Static, 1:2, 1:3, or 1:4 - selected via mode-set command; 1:4 mode uses all BP0–BP3 outputs with 1/3 bias default |
| Logic Compatibility | CMOS input thresholds - interfaces directly with 1.8 V, 3.3 V, and 5 V microcontrollers without level shifters |
Pinout & Package
TSSOP48 package (SOT362-1), 6.1 mm body width, lead pitch 0.5 mm - suitable for automated SMT assembly and compact automotive PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SDA (Pin 10) | I²C serial data line | Open-drain bidirectional interface; requires external pull-up; handles command and display data transfers |
| SCL (Pin 11) | I²C serial clock input | Master-generated clock up to 400 kHz; synchronizes all I²C transactions including auto-increment writes |
| SYNC (Pin 12) | Cascade synchronization I/O | Enables daisy-chaining multiple PCA85162T/Q900/1 devices; output when master, input when slave |
| CLK (Pin 13) | Internal/external clock I/O | Outputs internal oscillator signal (OSC = VSS) or accepts external clock (OSC = VDD); sets LCD frame rate |
| VLCD (Pin 21) | LCD supply voltage | Independent analog rail (2.5–8.0 V); powers internal bias generator and segment/backplane drivers |
| BP0–BP3 (Pins 22–25) | LCD backplane outputs | Four complementary outputs; configured per multiplex mode; BP0–BP3 used fully in 1:4 mode |
| S0–S31 (Pins 26–48, 1–9) | LCD segment outputs | 32 CMOS outputs; each maps to one RAM column; open-circuit unused pins per display size |
Key Features
| Feature | Design Value |
|---|---|
| Integrated LCD bias generator | Internal voltage divider with switchable 1/2 or 1/3 bias - eliminates external resistors and reduces BOM count |
| Hardware subaddressing (A0–A2, SA0) | Supports up to 8 device-select addresses on same I²C bus - enables multi-display systems without address conflicts |
| Versatile blink control | Two modes: full-display blink (via mode-set E-bit toggling) or RAM-bank alternate blink - no MCU intervention needed |
| Auto-incremented RAM addressing | Reduces I²C transaction overhead - single load-data-pointer command enables sequential 32-byte display updates |
| Power supply separation | VDD (1.8–5.5 V) and VLCD (2.5–8.0 V) independently powered - allows optimal logic noise immunity and LCD contrast tuning |
Applications
| Automotive Instrument Cluster | Vehicle Infotainment Display |
|---|---|
|
Use Scenario: Driving condition monitoring with analog speedometer, fuel gauge, and warning icons. 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: Enables high-contrast, flicker-free static and multiplexed segments at −40 °C to +95 °C with no external bias components. |
Use Scenario: Secondary status panel showing Bluetooth connection, audio source, and climate settings. IC Role / Device Role / Timing Role: Dedicated segment driver offloading main SoC; uses bank-select command for smooth icon transitions. Use Value: Reduces firmware complexity via hardware blink modes and auto-increment RAM writes - cuts I²C traffic by ~40% vs. byte-by-byte writes. |
| Automotive HVAC Control Panel | Commercial Vehicle Telematics Display |
|
Use Scenario: Touchless climate interface with temperature digits, fan speed bars, and mode indicators. IC Role / Device Role / Timing Role: Static-mode driver for numeric digits and 1:2 multiplex for bar-graph elements; VLCD set to 5.0 V for guest-host LCD. Use Value: Independent VLCD rail allows precise contrast tuning across wide ambient temperatures without affecting logic supply. |
Use Scenario: Ruggedized fleet management display showing GPS location, engine diagnostics, and maintenance alerts. IC Role / Device Role / Timing Role: Cascaded PCA85162T/Q900/1 pair driving 64-segment display; synchronized via SYNC pin for frame coherence. Use Value: AEC-Q100 qualification ensures reliability in vibration-prone cab environments; TSSOP48 withstands thermal cycling per JESD22-A104. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LCD driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PCF8576CT/1/1 | Same 32×4 architecture but lacks AEC-Q100 qualification; max operating temp +85 °C; no VLCD > 6.5 V support | Not approved for automotive safety-critical clusters; limited to industrial panels or consumer dashboards | Select only if AEC-Q100 is not required and VLCD ≤ 6.5 V suffices for the LCD module. |
| MAX6955ATL+T | 40-segment, 4-backplane driver with integrated charge pump; supports 1/2, 1/3, 1/4 bias; I²C up to 400 kHz | Higher segment count and built-in boost converter simplify high-VLCD designs but lacks SYNC cascade capability | Prefer when driving high-threshold LCDs (>6.5 V) without external VLCD supply; avoid when multi-device synchronization is essential. |
Compared with PCF8576CT/1/1 and MAX6955ATL+T, the PCA85162T/Q900/1 uniquely combines AEC-Q100 compliance, 8.0 V VLCD tolerance, and hardware SYNC cascading - making it the only drop-in solution for scalable, temperature-hardened automotive LCD subsystems.
Availability
PCA85162T/Q900/1 is available at Aetrix Electronics and suitable for automotive instrument clusters, HVAC control panels, infotainment status displays, and telematics dashboards requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for PCA85162T/Q900/1 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, with deep expertise in mixed-signal and power-efficient interface ICs.
The PCA85162T/Q900/1 belongs to NXP's automotive-qualified LCD driver product line, designed specifically for reliable, low-component-count segment driving in harsh-temperature vehicle environments.
FAQ
What is the maximum LCD voltage supported by PCA85162T/Q900/1?
The PCA85162T/Q900/1 supports VLCD up to 8.0 V, enabling direct drive of high-threshold twisted nematic and guest-host LCD modules without external voltage boosters. This specification is confirmed in Section 2 Features and benefits and Table 13 of the Rev. 4.2 datasheet. The 8.0 V rating applies specifically to the PCA85162T/Q900/1 and is maintained across its full operating temperature range.
Does PCA85162T/Q900/1 require external components for LCD bias generation?
No, the PCA85162T/Q900/1 includes an internal LCD bias generator with voltage-follower buffers and switchable 1/2 or 1/3 bias configuration - eliminating the need for external resistor networks or capacitors. This is explicitly stated in Section 2 Features and benefits and verified in Figure 1 (block diagram) and Section 6.3.1 of the datasheet.
Can PCA85162T/Q900/1 drive a 1:3 multiplexed LCD display?
Yes, the PCA85162T/Q900/1 supports 1:3 multiplex drive mode using BP0–BP2 outputs with 1/3 bias configuration, as defined in Table 6 (mode-set command) and illustrated in Figure 9 of the datasheet. In this mode, BP3 carries the same signal as BP1 and may be tied to increase drive strength.
What is the function of the SYNC pin on PCA85162T/Q900/1?
The SYNC pin (Pin 12) provides hardware-level cascade synchronization between multiple PCA85162T/Q900/1 devices. When configured as output (master), it drives the frame timing signal; when configured as input (slave), it aligns display updates across daisy-chained drivers - ensuring coherent flicker-free operation in large-panel applications.
Is PCA85162T/Q900/1 qualified for automotive use?
Yes, the PCA85162T/Q900/1 is AEC-Q100 qualified for automotive applications (Grade 2, −40 °C to +105 °C ambient), with extended operational range validated to +95 °C. This qualification is explicitly cited in Section 2 Features and benefits and reinforced by its ordering information specifying Tamb = −40 °C to +95 °C.
PCA85162T/Q900/1,1 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/Q900/1,1 FAQ
1.How can I place an order for PCA85162T/Q900/1,1 through Aetrix?
Please submit a Request for Quotation (RFQ) for PCA85162T/Q900/1,1 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/Q900/1,1 reliable?
The price and inventory of PCA85162T/Q900/1,1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PCA85162T/Q900/1,1 is usually 5 days.
3.What payment methods are accepted for PCA85162T/Q900/1,1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PCA85162T/Q900/1,1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PCA85162T/Q900/1,1?
PCA85162T/Q900/1,1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PCA85162T/Q900/1,1 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/Q900/1,1?
For technical support, including PCA85162T/Q900/1,1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PCA85162T/Q900/1,1 requirements.
6.How does Aetrix verify that PCA85162T/Q900/1,1 is sourced from the original manufacturer or authorized distributors?
All PCA85162T/Q900/1,1 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/Q900/1,1 meets industry standards.
7.What is the process for return or replacement of PCA85162T/Q900/1,1?
All PCA85162T/Q900/1,1 units undergo pre-shipment inspection (PSI). If there is an issue with PCA85162T/Q900/1,1, 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/Q900/1,1 part is unused and in its original packaging.
Return procedure for PCA85162T/Q900/1,1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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