PCF8562TT/2 - 4x32 I2C LCD Segment Driver | NXP | TSSOP-48
Артикул: PCF8562TT/2 ✓ Активен| Кол-во | Цена за ед. | Итого |
|---|---|---|
| 1 | $2.85 | $2,85 |
| 10 | $2.55 | $25,50 |
| 100 | $2.18 | $218,00 |
| 500 | $1.89 | $945,00 |
| 1.000 | $1.62 | $1.620,00 |
| 3.000 | $1.38 | $4.140,00 |
PCF8562TT/2 Обзор
An LCD segment driver is an integrated circuit that generates the AC voltage waveforms required to drive individual segments of a liquid-crystal display. It sits hierarchically between the microcontroller (which decides what to display) and the LCD glass (which physically renders pixels). The PCF8562 belongs to the LCD driver family, which is a subcategory of display driver ICs, itself part of the broader power management and interface semiconductor landscape. Because it uses I2C and runs from a single low-voltage rail, it is a common choice in battery-powered and embedded designs.
Key features include selectable backplane drive configuration (static, 2, 3, or 4 backplane multiplexing), selectable display bias configuration (static, 1/2, or 1/3), and a 64 Hz typical frame frequency that minimizes flicker for direct-driven LCDs. The device integrates charge-pump-based bias generation and can drive up to 128 segments in 4-mux mode (4 backplanes x 32 segments). Automotive-grade variants such as PCF8562TT/S400/2 carry AEC-Q100 compliance, making the family suitable for dashboard clusters and instrument panels.
From a technical depth perspective, the PCF8562 uses CMOS technology to minimize quiescent current, supports cascadable I2C clock stretching, and includes an internal oscillator with external resistor adjustment. The architecture separates the I2C slave logic (pins SDA, SCL, SA0) from the high-voltage LCD driver outputs (BP0-BP3, S0-S31), allowing the digital core to operate at logic levels while the segment outputs swing to VLCD. Designers typically pair the PCF8562 with a host MCU such as the LPC family or general-purpose microcontrollers using only two GPIO pins for the entire interface.
Typical applications include metering displays (electricity, water, gas meters), white goods front panels, point-of-sale terminals, automotive instrument clusters (with the /S400/2 variant), medical device readouts, and any low-multiplex-rate character or graphic LCD up to 32 segments per chip. Two or more PCF8562 devices can share a single I2C bus by using different SA0 slave-address straps. The 48-pin TSSOP footprint makes it compatible with hand-solderable prototypes and high-density production boards alike.
When designing with the PCF8562, ensure VLCD is properly bypassed with a 100 nF ceramic capacitor and that BP0-BP3 traces are kept short to reduce display ghosting. Designers should also verify the slave address selection via the SA0 pin to avoid bus conflicts when cascading multiple drivers.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
Аналоги без доработки для PCF8562TT/2 — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.
Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:
PCF8562TT/S400/2
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
PCF8562TT/2,518
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
PCF8562TT/2 Характеристики
| Device Type | LCD Segment Driver |
| Technology | CMOS |
| Напряжение питания | 2.5 V / 3.3 V / 5 V |
| Backplanes | Up to 4 (static, 2, 3, or 4 mux) |
| Segments | Up to 32 (4 BP x 32 SEG) |
| Интерфейс | I2C-bus (2-wire, up to 400 kHz) |
| Frame Frequency | 64 Hz (typical) |
| Display Bias | Static, 1/2, or 1/3 (selectable) |
| Рабочая температура | -40 C to +85 C |
| Корпус | TSSOP-48 (SOT362-1, MO-153) |
| Package Dimensions | 6.10 mm body width, 0.5 mm pitch |
| Тип монтажа | Surface Mount |
| Automotive Grade Option | AEC-Q100 compliant (PCF8562TT/S400/2) |
| Статус RoHS | Compliant |
Конфигурация выводов PCF8562TT/2
| Контакт 1 | SDA — I2C serial data line |
| Контакт 2 | SCL — I2C serial clock line |
| Контакт 3 | SA0 — I2C slave address selection |
| Контакт 4 | OSC — Oscillator input |
| Контакт 5 | VDD — Logic supply voltage |
| Контакт 6 | VSS — Logic ground |
| Контакт 7 | VLCD — LCD supply voltage |
| Контакт 8 | BP0 — Backplane 0 output |
| Контакт 9 | BP1 — Backplane 1 output |
| Контакт 10 | BP2 — Backplane 2 output |
| Контакт 11 | BP3 — Backplane 3 output |
| Контакт 12 | S0 — Segment 0 output |
| Контакт 13 | S1 — Segment 1 output |
| Контакт 14 | S2 — Segment 2 output |
| Контакт 15 | S3 — Segment 3 output |
| Контакт 16 | S4 — Segment 4 output |
| Контакт 17 | S5 — Segment 5 output |
| Контакт 18 | S6 — Segment 6 output |
| Контакт 19 | S7 — Segment 7 output |
| Контакт 20 | S8 — Segment 8 output |
| Контакт 21 | S9 — Segment 9 output |
| Контакт 22 | S10 — Segment 10 output |
| Контакт 23 | S11 — Segment 11 output |
| Контакт 24 | S12 — Segment 12 output |
| Контакт 25 | S13 — Segment 13 output |
| Контакт 26 | S14 — Segment 14 output |
| Контакт 27 | S15 — Segment 15 output |
| Контакт 28 | S16 — Segment 16 output |
| Контакт 29 | S17 — Segment 17 output |
| Контакт 30 | S18 — Segment 18 output |
| Контакт 31 | S19 — Segment 19 output |
| Контакт 32 | S20 — Segment 20 output |
| Контакт 33 | S21 — Segment 21 output |
| Контакт 34 | S22 — Segment 22 output |
| Контакт 35 | S23 — Segment 23 output |
| Контакт 36 | S24 — Segment 24 output |
| Контакт 37 | S25 — Segment 25 output |
| Контакт 38 | S26 — Segment 26 output |
| Контакт 39 | S27 — Segment 27 output |
| Контакт 40 | S28 — Segment 28 output |
| Контакт 41 | S29 — Segment 29 output |
| Контакт 42 | S30 — Segment 30 output |
| Контакт 43 | S31 — Segment 31 output |
| Контакт 44 | NC — Not connected (per datasheet) |
| Контакт 45 | NC — Not connected (per datasheet) |
| Контакт 46 | NC — Not connected (per datasheet) |
| Контакт 47 | NC — Not connected (per datasheet) |
| Контакт 48 | NC — Not connected (per datasheet) |
Типичное применение
PCF8562TT/2 подходит для 7 применениеs: Utility Meter Displays, White Goods Front Panels, Point-of-Sale Terminals, Automotive Instrument Clusters (with /S400/2 variant), Medical Device Readouts, Industrial Control Panel Displays, Audio Equipment Front Panels.
Utility Meter Displays
The PCF8562TT/2 is widely deployed in electricity, water, and gas meter front panels where a reflective custom-segment LCD must remain readable for 10+ years on a single battery. Its 4 uA typical quiescent current (NXP datasheet typical operating value), 2.5V-5V supply range, and I2C interface allow direct connection to ultra-low-power metrology MCUs without external level shifters. The 4-mux, 32-segment capacity covers most 6-8 digit numeric plus icon glass layouts. Compared with a character LCD module, the PCF8562-based segment LCD saves PCB area, eliminates the controller-board connector, and survives automotive-style temperature profiles when using the /S400/2 variant.
Рекомендуется
White Goods Front Panels
Washing machines, dishwashers, ovens, and refrigerators use the PCF8562TT/2 to drive 7-segment digits and status icons on the user interface. The TSSOP-48 footprint is hand-solderable for prototyping, and the 64 Hz frame frequency avoids flicker under fluorescent kitchen lighting. Designers benefit from the I2C two-wire interface which frees GPIO pins on the host MCU for keypad scanning and motor-control feedback. The -40C to +85C operating range covers unheated garages and outdoor appliance enclosures without derating.
Рекомендуется
Point-of-Sale Terminals
POS terminals and handheld scanners rely on the PCF8562TT/2 to drive customer-facing displays showing price, total, and change amounts. The I2C interface allows the LCD to be placed up to several centimeters from the host MCU without signal-integrity concerns at 400 kHz. With four backplanes and 32 segments per chip, designers can implement an 8-digit numeric plus decimal-point and currency-symbol display on a single driver. The 5V tolerance simplifies integration with legacy 5V microcontrollers still common in payment terminals.
Рекомендуется
Automotive Instrument Clusters (with /S400/2 variant)
For automotive dashboards and instrument clusters, designers specify the PCF8562TT/S400/2 variant which adds AEC-Q100 Grade 3 qualification for the -40C to +85C automotive temperature range. The PCF8562 drives tell-tale icons, gear-position indicators, and odometer digits, while the MCU handles CAN bus communication. The 64 Hz frame frequency is flicker-free under automotive lighting conditions including pulsed PWM dimming. Two PCF8562 devices can share a single I2C bus via the SA0 strap, doubling the segment count for full dashboard layouts.
Рекомендуется
Medical Device Readouts
Blood-pressure cuffs, infusion pumps, and handheld diagnostics use the PCF8562TT/2 to display measurement values and status icons on reflective glass that remains readable in any lighting condition. The CMOS low-quiectics-current design is critical for battery-powered medical devices requiring IEC 60601-1 isolation budgets. The I2C interface simplifies the design when the LCD must be physically separated from the analog measurement front-end for patient-safety creepage and clearance. Designers can verify the 64 Hz refresh rate maintains stable readings during low-frequency physiological signal acquisition.
Рекомендуется
Industrial Control Panel Displays
Industrial HMIs, PLC front panels, and process-control equipment use the PCF8562TT/2 to drive segment-LCD status and value indicators alongside graphical TFTs. The TSSOP-48 package and industrial -40C to +85C rating suit factory-floor environments. By assigning PCF8562 devices to different SA0 addresses, designers can build up to 64 backplanes and 64 segments on a single I2C bus from two chips. The PCF8562's selectable bias (static, 1/2, 1/3) accommodates both high-contrast TN and wide-temperature STN glass.
Рекомендуется
Audio Equipment Front Panels
Hi-fi amplifiers, mixing consoles, and rack-mounted audio gear use the PCF8562TT/2 to drive level meters, source labels, and status indicators on reflective segment LCDs. The I2C interface keeps the noisy analog signal paths away from the digital display logic. Designers appreciate the selectable bias configuration for matching legacy display glass from older equipment without redesigning the host PCB. Two devices can be cascaded for 64-segment support on long VU-meter-style bar graphs.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для PCF8562TT/2 — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | PCF8562TT/S400/2 | PCF8562TT/2,518 |
|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | TSSOP-48 (SOT362-1) | TSSOP-48 (SOT362-1) - same | TSSOP-48 (SOT362-1) - same |
| Backplanes | 4 (static/2/3/4 mux) | 4 (static/2/3/4 mux) | 4 (static/2/3/4 mux) |
| Segments | 32 | 32 | 32 |
| Interface | I2C (up to 400 kHz) | I2C (up to 400 kHz) | I2C (up to 400 kHz) |
| Supply Voltage | 2.5V / 3.3V / 5V | 2.5V / 3.3V / 5V | 2.5V / 3.3V / 5V |
| AEC-Q100 Automotive | No | Yes (Grade 3) | No |
| Frame Frequency | 64 Hz (typical) | 64 Hz (typical) | 64 Hz (typical) |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C |
| Packaging Code | Tape & Reel (/2) | Tape & Reel (/2) | 13" 2500-piece reel (518) |
Ключевые отличия
- Industrial-grade only - automotive requires separate /S400/2 variant (против PCF8562TT/S400/2)
- Same die as PCF8562TT/S400/2, lower cost for non-automotive (против PCF8562TT/S400/2)
- 13-inch reel packaging code (518) vs standard /2 (против PCF8562TT/2,518)
Заметки по проектированию
Decouple VDD with a 100 nF ceramic capacitor placed within 5 mm of the VDD pin, and place a separate 1 uF to 10 uF bulk capacitor on the VLCD pin to filter LCD charge-pump switching noise. The NXP PCF8562 datasheet reference schematic shows VLCD driven from an internal charge pump; adding an external reservoir capacitor stabilizes the display contrast under varying temperature.
Keep BP0-BP3 and S0-S31 traces short and away from switching power or I2C clock edges. Segment traces should be matched in length where possible to minimize capacitive imbalance and prevent display ghosting in 4-mux mode. Place the TSSOP-48 package on the opposite side of the PCB from any high-current traces to avoid coupling into the high-impedance segment outputs.
Do not exceed the maximum I2C SCL frequency or omit pull-up resistors on SDA and SCL - the PCF8562 does not include internal pull-ups. When cascading two PCF8562 devices, ensure each has a unique SA0 strap (one tied to VSS, the other to VDD) to avoid bus-address conflicts. Lastly, do not drive the BPx pins with external DC; the device generates the AC waveforms internally, and DC bias permanently damages the LCD glass.
Estimated: at 5V VDD and typical 4 uA quiescent current, the PCF8562TT/2 dissipates approximately 20 uW - negligible thermal concern. Designers should still follow standard TSSOP-48 PCB layout guidelines and avoid placing the device directly above heat-generating components like voltage regulators. For the /S400/2 automotive variant, verify the -40C to +85C temperature profile against the in-cabin environment.
Информация о соответствии
RoHS compliant per NXP product page. PCF8562TT/2 is not AEC-Q100 qualified - use PCF8562TT/S400/2 for automotive. Halogen-free and lead-free confirmed by NXP material declaration.
