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NXP Semiconductors PCA8537BH/Q900/1,5
- Part No.:
- PCA8537BH/Q900/1,5
- Manufacturer:
- NXP Semiconductors
- Category:
- Display Drivers
- Package:
- 64-TQFP
- Datasheet:
-
PCA8537BH/Q900/1,5.pdf
- Description:
- IC DRVR 7 SEGMENT 64TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,455
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Product details
Overview
PCA8537BH/Q900/1,5 from NXP Semiconductors is an AEC-Q100 qualified automotive LCD driver IC supporting up to 1:8 multiplexing, 46 segments, 8 backplanes, and 352 total display elements. It integrates a programmable internal charge pump (up to 9 V), four-region temperature-compensated VLCD control, and a 5 MHz SPI interface for microcontroller connectivity in instrument clusters and climate control units.
For engineers reviewing the PCA8537BH/Q900/1,5 datasheet, PCA8537BH/Q900/1,5 pinout, PCA8537BH/Q900/1,5 application, or PCA8537BH/Q900/1,5 equivalent, this page delivers verified technical context, SPI-bus timing constraints, TQFP64 package layout, temperature-sensor–enabled contrast stabilization, and automotive-grade bias configuration options.
Technical Context
The PCA8537BH/Q900/1,5 implements a dedicated SPI-bus controller (5 MHz max) with CE/SCL/SDIO signaling, distinct from the I²C variant PCA8537AH. Its internal oscillator supports factory-calibrated frame frequencies from 60 Hz to 300 Hz in 10 Hz steps, and its integrated temperature sensor feeds real-time data into four-region programmable VLCD compensation logic.
It supports static, 1:2, 1:4, 1:6, and 1:8 multiplex drive modes via software-configurable M[2:0] bits, with selectable 1/2-, 1/3-, or 1/4-bias configurations. Display RAM consists of 352-bit storage organized across two banks for concurrent write/display operations in non-1:8 modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Interface | SPI-bus (CE, SCL, SDIO); 5 MHz maximum clock rate |
| LCD Drive Capability | Up to 8 backplanes, 46 segments, 352 elements; supports 1:8 multiplex VA LCDs |
| Voltage Ranges | Digital supply: 1.8 V to 5.5 V; LCD supply (VLCD): 2.5 V to 9.0 V |
| Frame Frequency | Programmable 60–300 Hz in 10 Hz steps; factory calibrated ±15% |
| Temperature Compensation | Four-region programmable VLCD adjustment using integrated on-die sensor |
| Display Memory | 352-bit RAM with bank-switching support for static/duplex/quadruplex modes |
| Charge Pump | Internal, software-enabled; generates VLCD = 2× or 3× VDD2 using on-chip capacitors |
Pinout & Package
PCA8537BH/Q900/1,5 is housed in a TQFP64 (SOT357-1) package: plastic thin quad flat package, 64 leads, body size 10 × 10 × 1.0 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1–32, 53–64 (S0–S31, S32–S43) | LCD segment outputs | Drive up to 46 active segments; pins S44/S45 serve dual role as BP6/BP7 in 1:8 mode |
| 45–50 (BP0–BP5), 51–52 (BP6/BP7) | LCD backplane outputs | Configurable for 1:2 to 1:8 multiplex; BP6/BP7 active only in 1:8 mode |
| 34 (CE) | SPI chip enable | Active-low input enabling SPI communication; must be held high when idle |
| 35 (SCL) | SPI serial clock | Input synchronizing data transfer; supports up to 5 MHz operation |
| 36 (SDIO) | SPI serial data I/O | Bidirectional line for command/data exchange; requires pull-up for open-drain compatibility |
| 33 (RESET) | Hardware reset | Active-low asynchronous reset; preserves RAM content but restores all registers to default state |
| 44 (VLCD) | LCD supply terminal | Output when internal charge pump enabled; input when external VLCD supplied (charge pump disabled) |
| 41 (VSS), 42 (VDD1), 43 (VDD2) | Power supply rails | VSS = ground; VDD1 powers digital core; VDD2 powers charge pump and analog blocks |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 2 qualification | Validated for automotive ambient temperatures (−40 °C to +105 °C) and reliability stress testing |
| Integrated temperature sensor | On-die sensor enables closed-loop VLCD compensation without external components |
| Programmable inversion mode | Selectable line or frame inversion to optimize power vs. flicker trade-off in static/multiplex displays |
| Two-bank display RAM | Enables background RAM update while displaying from alternate bank-critical for glitch-free UI transitions |
| Factory-calibrated oscillator | Reduces need for external crystal; frame frequency accuracy ±15% over full temperature range |
Applications
| Instrument Cluster | Car Radio Display |
|---|---|
Use Scenario: Driving information presentation including speed, RPM, fuel level, and warning indicators on analog/digital hybrid dashboards. IC Role / Device Role / Timing Role: Primary LCD segment driver managing up to 352 elements with real-time temperature-adjusted contrast stability. Use Value: Eliminates external voltage regulators and temperature sensors, reducing BOM count and PCB area in space-constrained instrument panels. |
Use Scenario: Multi-function audio interface with alphanumeric station names, track titles, and status icons under varying cabin temperatures. IC Role / Device Role / Timing Role: SPI-controlled display controller handling dynamic content updates and bias reconfiguration during mode changes. Use Value: Maintains consistent legibility across −40 °C to +85 °C via four-region VLCD compensation-no manual contrast adjustment required. |
| Climate Control Unit | Heads-Up Display (HUD) Subsystem |
Use Scenario: HVAC panel with segmented numeric readouts, icon-based mode indicators, and touch-responsive feedback overlays. IC Role / Device Role / Timing Role: Low-power LCD driver supporting static and 1:4 multiplex modes with bank-switched RAM for rapid UI refresh. Use Value: Enables simultaneous display update and memory loading-prevents visual tearing during fan-speed or temperature setting changes. |
Use Scenario: Compact auxiliary display projecting vehicle data onto windshield via reflective optics requiring high-contrast VA-LCD. IC Role / Device Role / Timing Role: High-stability driver for vertical-alignment LCDs demanding precise 1:8 multiplex waveform timing and DC balance. Use Value: Internal charge pump delivers stable 9 V VLCD without external boost circuitry-critical for optical clarity in variable ambient light. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LCD driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PCA8537AH/Q900/1,5 | I²C interface (400 kHz), identical pinout and feature set except bus protocol and clock pin function (SCL/SDA vs. SCL/SDIO/CE) | Preferred where microcontroller lacks SPI hardware or uses shared I²C bus with other peripherals | Select PCA8537AH/Q900/1,5 only if system architecture mandates I²C; otherwise PCA8537BH/Q900/1,5 offers higher throughput |
| PCF8576DT/1,118 | Lower element count (160), no integrated temperature sensor, no programmable frame frequency, fixed 1:4/1:8 multiplex only | Suitable for cost-sensitive non-automotive displays lacking thermal drift requirements | Use PCF8576DT/1,118 only for industrial or consumer panels without AEC-Q100 or temperature compensation needs |
Compared with PCA8537AH/Q900/1,5 and PCF8576DT/1,118, the PCA8537BH/Q900/1,5 uniquely combines SPI speed, automotive qualification, and closed-loop thermal contrast control-making it the sole option for safety-critical, thermally variable dashboard displays requiring zero external compensation components.
Availability
PCA8537BH/Q900/1,5 is available at Aetrix Electronics and suitable for instrument cluster development, car radio manufacturing, and climate control unit production requiring stable component supply across automotive lifecycle durations.
Supply support for PCA8537BH/Q900/1,5 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 specializing in secure connectivity solutions for automotive, industrial, and IoT applications, with deep expertise in mixed-signal display interfaces.
The PCA8537 product line targets automotive-grade LCD driving with integrated power management and thermal adaptation-designed specifically for instrument clusters and infotainment subsystems operating under wide temperature and EMI stress.
FAQ
What interface protocol does the PCA8537BH/Q900/1,5 support?
The PCA8537BH/Q900/1,5 supports a 5 MHz SPI-bus interface with CE (chip enable), SCL (serial clock), and SDIO (bidirectional serial data) signals. Unlike the I²C variant PCA8537AH, it does not implement SDA/SCL I²C signaling. The SPI interface enables faster command and display data transfer, critical for dynamic automotive UI updates.
Does the PCA8537BH/Q900/1,5 include an integrated temperature sensor?
Yes, the PCA8537BH/Q900/1,5 integrates an on-die temperature sensor that provides digital readout via the Temp-read command. This sensor directly feeds temperature data into the four-region programmable VLCD compensation engine, enabling automatic contrast stabilization across −40 °C to +105 °C without external components.
What is the maximum LCD element count supported by the PCA8537BH/Q900/1,5?
The PCA8537BH/Q900/1,5 supports up to 352 display elements-configurable as 46 segments × 8 backplanes (1:8 multiplex), 44 segments × 6 backplanes (1:6), or static 44-segment operation. This capacity enables driving up to 44 seven-segment alphanumeric characters or 22 fourteen-segment displays in automotive HMI applications.
Can the PCA8537BH/Q900/1,5 generate its own LCD supply voltage?
Yes, the PCA8537BH/Q900/1,5 features a software-programmable internal charge pump that generates VLCD up to 9.0 V using on-chip capacitors. VLCD output is selectable as 2× or 3× VDD2 via the Charge-pump-ctrl command. When disabled, VLCD becomes an input accepting external supply between 2.5 V and 9.0 V.
Is the PCA8537BH/Q900/1,5 qualified for automotive use?
Yes, the PCA8537BH/Q900/1,5 is AEC-Q100 qualified (Grade 2), certified for operation from −40 °C to +105 °C ambient temperature. It meets automotive reliability standards including HTOL, TC, and ESD testing-making it suitable for instrument clusters, radio head units, and climate control modules in passenger vehicles.
PCA8537BH/Q900/1,5 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 64-TQFP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Display Type:
- LCD
- Configuration:
- 7 Segment + DP, 14 Segment + DP + AP, Dot Matrix
- Interface:
- SPI
- Digits or Characters:
- 22 Characters, 44 Characters, 352 Elements
- Current - Supply:
- 200 µA
- Voltage - Supply:
- 1.8V ~ 5.5V
- Operating Temperature:
- -40°C ~ 95°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 64-TQFP (10x10)
PCA8537BH/Q900/1,5 FAQ
1.How can I place an order for PCA8537BH/Q900/1,5 through Aetrix?
Please submit a Request for Quotation (RFQ) for PCA8537BH/Q900/1,5 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 PCA8537BH/Q900/1,5 reliable?
The price and inventory of PCA8537BH/Q900/1,5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PCA8537BH/Q900/1,5 is usually 5 days.
3.What payment methods are accepted for PCA8537BH/Q900/1,5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PCA8537BH/Q900/1,5 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PCA8537BH/Q900/1,5?
PCA8537BH/Q900/1,5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PCA8537BH/Q900/1,5 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 PCA8537BH/Q900/1,5?
For technical support, including PCA8537BH/Q900/1,5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PCA8537BH/Q900/1,5 requirements.
6.How does Aetrix verify that PCA8537BH/Q900/1,5 is sourced from the original manufacturer or authorized distributors?
All PCA8537BH/Q900/1,5 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 PCA8537BH/Q900/1,5 meets industry standards.
7.What is the process for return or replacement of PCA8537BH/Q900/1,5?
All PCA8537BH/Q900/1,5 units undergo pre-shipment inspection (PSI). If there is an issue with PCA8537BH/Q900/1,5, 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 PCA8537BH/Q900/1,5 part is unused and in its original packaging.
Return procedure for PCA8537BH/Q900/1,5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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