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NXP Semiconductors PCA8553DTT/AJ
- Part No.:
- PCA8553DTT/AJ
- Manufacturer:
- NXP Semiconductors
- Category:
- Display Drivers
- Package:
- 56-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
PCA8553DTT/AJ.pdf
- Description:
- IC DRVR 160 SEGMENT 56TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,270
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Product details
Overview
PCA8553DTT/AJ from NXP Semiconductors is an AEC-Q100 Grade 2 automotive LCD segment driver with 4 backplane and 40 segment outputs, selectable 1:2/1:3/1:4 multiplexing or static drive, internal bias generation, and dual I²C (400 kHz) or SPI (5 MHz) interface - used in battery-powered instrument clusters and portable metering displays.
For engineers reviewing the PCA8553DTT/AJ datasheet, PCA8553DTT/AJ pinout, PCA8553DTT/AJ application, or PCA8553DTT/AJ equivalent, this page delivers verified technical context, exact TSSOP56 pin mapping, real-world display configuration trade-offs, and validated drop-in alternatives per NXP PCN202102010F01.
Technical Context
The PCA8553DTT/AJ integrates a programmable oscillator, on-chip LCD bias generator (1/2 or 1/3), and display controller supporting auto-incrementing RAM access across four COM lines. Its dual-bus architecture allows host MCU selection between I²C and SPI via the IFS pin without firmware change.
It implements frame inversion (INV bit) or line inversion for DC voltage cancellation, supports software/hardware reset (RST/PORE), and enables power-down mode via DE bit in Display_ctrl_1 register - maintaining register state while disabling oscillator and outputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Display Drive | 40 segment × 4 backplane (160-element max); supports static, 1:2, 1:3, or 1:4 multiplexing |
| Interface | I²C at 400 kHz or SPI at 5 MHz; bus selection via IFS pin |
| Bias Configuration | Selectable 1/2 or 1/3 bias; internal buffers eliminate external resistive divider |
| Supply Range | VDD and VLCD both 1.8 V to 5.5 V - enables single-supply operation or independent contrast control |
| Operating Temp | −40 °C to +85 °C; AEC-Q100 Grade 2 qualified for automotive cabin applications |
| Power Consumption | Ultra low-power design; oscillator disable and power-down mode reduce quiescent current significantly |
| Blink Modes | Configurable blink frequency: 0.5 Hz, 1 Hz, or 2 Hz via BL[1:0] bits |
Pinout & Package
TSSOP56 package (SOT364-1), 6.1 mm body width, 0.5 mm pitch - optimized for compact automotive dashboards and portable medical devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| COM0–COM3 (Pins 7–10) | LCD backplane outputs | Drive common electrodes in 1:4 multiplex mode; all four active when MUX[1:0]=00 |
| SEG0–SEG39 (Pins 23–56, 1–6) | LCD segment outputs | Drive individual display elements; mapped to 5×32-bit display RAM blocks per COM line |
| VDD (Pin 12), VSS (Pin 14), VLCD (Pin 11) | Power supplies | Independent VDD (logic) and VLCD (LCD bias) rails allow contrast tuning without affecting MCU interface |
| RST (Pin 15), PORE (Pin 21) | Reset control | Hardware reset (active-low RST ≥10 μs) or POR enable (PORE tied to VDD); both initialize registers to default state |
| IFS (Pin 13), SCL/SDA/CE/SDIO (Pins 19,20,16) | Bus interface select & signals | IFS = VSS → I²C mode; IFS = VDD → SPI mode; SDA/CE serves dual role as data I/O or chip enable |
Key Features
| Feature | Design Value |
|---|---|
| Integrated LCD bias generator | On-chip 1/2 or 1/3 voltage divider with buffered outputs eliminates external resistor network and reduces layout sensitivity |
| Auto-incrementing display RAM | Sequential write to 04h–17h fills 160-segment buffer without address retransmission - cuts I²C/SPI transaction overhead by >60% |
| Dual-bus interface with pin-select | Single hardware configuration (IFS level) selects between I²C and SPI - simplifies BOM and enables reuse across MCU platforms |
| Configurable blink timing | Three fixed blink frequencies (0.5/1/2 Hz) generated internally - no external timer or MCU intervention required |
| Power-down mode retention | Registers retain values during power-down; display disabled but bus remains responsive - enables rapid wake-up without full reinitialization |
Applications
| Metering Equipment | Small Appliances |
|---|---|
Use Scenario: Digital multimeter with 4-digit LCD and status icons. IC Role / Device Role / Timing Role: Primary LCD segment driver managing 160 elements across 4 backplanes using 1:4 multiplexing and internal 1/3 bias. Use Value: Eliminates need for external bias circuitry and reduces MCU GPIO count by handling all segment/backplane timing autonomously. | Use Scenario: Programmable coffee maker with alphanumeric LCD showing brew time, temperature, and menu options. IC Role / Device Role / Timing Role: Standalone display controller driving 10×14-segment characters via SPI interface with auto-incremented RAM writes. Use Value: Enables low-cost 8-bit MCU to drive complex display with minimal firmware overhead and no external clock source. |
| Consumer Healthcare Devices | Battery Operated Devices |
Use Scenario: Portable blood glucose monitor with segmented icon indicators and numeric readout. IC Role / Device Role / Timing Role: Ultra-low-power LCD driver operating from coin cell (VLCD = VDD = 3.0 V), using power-down mode between readings. Use Value: Extends battery life beyond 12 months by reducing active current draw and enabling instant display wake-up. | Use Scenario: Handheld thermal imager with monochrome LCD overlay showing temperature scale and measurement mode. IC Role / Device Role / Timing Role: Automotive-grade segment driver (AEC-Q100 Grade 2) operating at −20 °C to +70 °C ambient with robust ESD protection. Use Value: Guarantees display functionality across extreme environmental conditions without derating or external heaters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LCD segment driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PCA8553DTT/AY | Identical electrical specs and pinout; dry-pack packaging vs. non-dry pack for PCA8553DTT/AJ | No functional difference; selected for moisture-sensitive assembly environments requiring MSL1 handling | Direct replacement per NXP PCN202102010F01; same PCB layout and firmware |
| PCF8576CT | 40×4 segment driver with I²C only; no SPI interface; 1/3 bias only; no BOOST mode | Lacks enhanced drive capability and dual-bus flexibility; limited to simpler, lower-capacitance displays | Lower-cost option where SPI is unused and display load is light; requires separate bias circuit if VLCD > VDD |
Compared with PCA8553DTT/AY, the PCA8553DTT/AJ offers identical functionality but requires non-dry-pack handling; versus PCF8576CT, it adds SPI support, BOOST mode for high-CLC panels, and independent VLCD/VDD rails - making it suitable for demanding automotive and portable applications.
Availability
PCA8553DTT/AJ is available at Aetrix Electronics and suitable for metering equipment, small appliances, and consumer healthcare devices requiring stable component supply and automotive-grade reliability.
Supply support for PCA8553DTT/AJ 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.
The PCA8553DTT/AJ belongs to NXP's automotive LCD driver product line, designed specifically for AEC-Q100-compliant instrumentation and human-machine interface applications with ultra-low power and flexible display configuration.
FAQ
What is the primary function of the PCA8553DTT/AJ in an LCD system?
The PCA8553DTT/AJ serves as a fully integrated LCD segment driver that manages up to 160 display elements across 4 backplanes using programmable multiplexing (static, 1:2, 1:3, or 1:4), internal bias generation, and autonomous display timing - eliminating the need for external drivers or bias networks in systems like digital meters and appliance displays. The PCA8553DTT/AJ handles all segment/backplane waveform generation, blink control, and RAM addressing internally.
Does the PCA8553DTT/AJ support both I²C and SPI interfaces simultaneously?
No, the PCA8553DTT/AJ supports either I²C or SPI - not both simultaneously. Interface selection is controlled by the logic level on the IFS pin: IFS = VSS configures I²C mode (SCL/SDA active), while IFS = VDD configures SPI mode (SCL/SDIO/CE active). This pin-select mechanism ensures deterministic bus behavior and avoids signal contention. The PCA8553DTT/AJ does not require firmware changes when switching modes.
How does the BOOST feature in the PCA8553DTT/AJ improve display performance?
The BOOST bit in the Display_ctrl_1 register increases the driving strength of segment and backplane outputs to support LCDs with higher effective capacitance - such as large-area or high-resolution panels. When enabled, BOOST raises VLCD current consumption but maintains waveform fidelity and contrast stability. It is essential for reliable operation with displays exceeding 100 nF total capacitance. The PCA8553DTT/AJ's BOOST mode is configured solely via register write and requires no external components.
What are the reset options available for the PCA8553DTT/AJ?
The PCA8553DTT/AJ provides three reset methods: (1) Hardware reset via active-low RST pin (≥10 μs pulse), (2) Power-On Reset (POR) enabled by tying PORE to VDD, and (3) Software reset via command 00101100 to register 00h. All three restore default register states including 1:4 multiplex, 1/3 bias, blinking off, and display disabled. The PCA8553DTT/AJ retains display RAM contents during reset unless explicitly cleared.
Can the PCA8553DTT/AJ operate with different voltages on VDD and VLCD?
Yes, the PCA8553DTT/AJ supports independent VDD (1.8 V to 5.5 V) and VLCD (1.8 V to 5.5 V) supplies, enabling precise contrast control without affecting logic interface levels. This separation allows optimization of display visibility across temperature ranges and battery discharge curves - for example, maintaining VLCD at 4.2 V while VDD runs at 3.3 V from a regulated rail. The PCA8553DTT/AJ's internal bias generator derives fractional voltages directly from VLCD, ensuring ratio accuracy regardless of VDD value.
PCA8553DTT/AJ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 56-TFSOP (0.240", 6.10mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Display Type:
- LCD
- Configuration:
- 160 Segment
- Interface:
- I2C, SPI
- Digits or Characters:
- 10 Characters, 20 Characters, 160 Elements
- Current - Supply:
- 1.8 µA
- Voltage - Supply:
- 1.8V ~ 5.5V
- Operating Temperature:
- -40°C ~ 105°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 56-TSSOP
PCA8553DTT/AJ FAQ
1.How can I place an order for PCA8553DTT/AJ through Aetrix?
Please submit a Request for Quotation (RFQ) for PCA8553DTT/AJ 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 PCA8553DTT/AJ reliable?
The price and inventory of PCA8553DTT/AJ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PCA8553DTT/AJ is usually 5 days.
3.What payment methods are accepted for PCA8553DTT/AJ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PCA8553DTT/AJ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PCA8553DTT/AJ?
PCA8553DTT/AJ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PCA8553DTT/AJ 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 PCA8553DTT/AJ?
For technical support, including PCA8553DTT/AJ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PCA8553DTT/AJ requirements.
6.How does Aetrix verify that PCA8553DTT/AJ is sourced from the original manufacturer or authorized distributors?
All PCA8553DTT/AJ 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 PCA8553DTT/AJ meets industry standards.
7.What is the process for return or replacement of PCA8553DTT/AJ?
All PCA8553DTT/AJ units undergo pre-shipment inspection (PSI). If there is an issue with PCA8553DTT/AJ, 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 PCA8553DTT/AJ part is unused and in its original packaging.
Return procedure for PCA8553DTT/AJ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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