可訂購部件
| 型號 | 可訂購的器件編號 | 訂購代碼(12NC) | 封裝 | 從經銷商處購買 |
|---|---|---|---|---|
| PCA9555PW | PCA9555PWJ | 935691433118 | SOT355-1 | 訂單產品 |
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Click here for more informationPCA9555PW
Low-voltage 16-bit I2C-bus I/O port with interrupt and weak pull-up
The PCA9555 provides 16 bits of General Purpose Input/Output (GPIO) expansion for I2C?-?bus?/?SMBus applications. It is designed for a wide voltage range of 2.3 V to 5.5 V with interrupt and default pull-up resistors on GPIOs. Nexperia GPIO expanders provide an elegant solution when additional IOs are needed while keeping the interconnections to a minimum, for example, in ACPI power switches, sensors, push buttons, LEDs and fan control. The PCA9555 contains a set of 8 bit Input, Output, Configuration and Polarity Inversion registers. At power up all IOs default to inputs. Each IO can be configured as either input or output by changing the corresponding bit in the configuration register. The data for each input or output is stored in the corresponding Input or Output register. The polarity inversion register can be programmed to invert the polarity of the input register. The PCA9555 has an open-drain interrupt output which is activated when any one of the GPIO changes from its corresponding input port register state. The power on reset sets the registers to default values and initializes the device state machine. The PCA9555 has three address pins A0, A1 and A2 which can be used to configure the I2C bus slave address of the device. It allows up-to eight devices to share the same I2C-bus/SMBus.
Features and benefits
I2C-bus to parallel port expander
Operating power supply voltage range of 2.3 V to 5.5 V
Ultra low standby current consumption:
1 μA (maximum)
Schmitt-trigger action allows slow input transition and better switching noise immunity at the SCL and SDA inputs
Vhys = 0.10 × VCC (typical)
Noise filter on SCL and SDA inputs
5 V tolerant I/Os
16 I/O pins which power up configured in input state with weak pull-up resistor
Open-drain active LOW interrupt output (INT)
400 kHz Fast-mode I2C-bus
Internal power-on reset
No glitch on power-up
Latched outputs with 25 mA drive maximum capability for directly driving LEDs
Latch-up performance exceeds 100 mA per JESD78, Class II
ESD protection:
HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V
CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V
TSSOP24 package: plastic thin shrink small outline package; 24 leads; body width 4.4 mm
Specified from -40 °C to +85 °C
參數類型
| 型號 | VCC (V) | Logic switching levels | Power dissipation considerations | Tamb (°C) | Package name |
|---|---|---|---|---|---|
| PCA9555PW | 2.3?-?5.5 | CMOS | low | -40~85 | TSSOP24 |
封裝
| 型號 | 可訂購的器件編號，（訂購碼(12NC)） | 狀態(tài) | 標示 | 封裝 | 外形圖 | 回流焊/波峰焊 | 包裝 |
|---|---|---|---|---|---|---|---|
| PCA9555PW | PCA9555PWJ (935691433118) |
Active | PCA9555PW |
TSSOP24 (SOT355-1) |
SOT355-1 |
SSOP-TSSOP-VSO-WAVE
|
SOT355-1_118 |
文檔 (9)
| 文件名稱 | 標題 | 類型 | 日期 |
|---|---|---|---|
| PCA9555 | Low-voltage 16-bit I2C-bus I/O port with interrupt and weak pull-up | Data sheet | 2024-08-01 |
| SOT355-1 | 3D model for products with SOT355-1 package | Design support | 2020-01-22 |
| pca9555 | PCA9555 IBIS model | IBIS model | 2023-04-07 |
| Leaflet_SOT8065_Minilogic | Leaflet_SOT8065 Minilogic | Leaflet | 2024-11-15 |
| Nexperia_package_poster | Nexperia package poster | Leaflet | 2020-05-15 |
| SOT355-1 | plastic, thin shrink small outline package; 24 leads; 0.65 mm pitch; 7.8 mm x 4.4 mm x 1.2 mm body | Package information | 2024-11-15 |
| SOT355-1_118 | TSSOP24; Reel pack for SMD 13''; Q1/T1 product orientation | Packing information | 2020-04-21 |
| PCA9555PW_Nexperia_Product_Reliability | PCA9555PW Nexperia Product Reliability | Quality document | 2023-05-29 |
| SSOP-TSSOP-VSO-WAVE | Footprint for wave soldering | Wave soldering | 2009-10-08 |
支持
如果您需要設計/技術支持，請告知我們并填寫 應答表 我們會盡快回復您。
訂購、定價與供貨
| 型號 | Orderable part number | Ordering code (12NC) | 狀態(tài) | 包裝 | Packing Quantity | 在線購買 |
|---|---|---|---|---|---|---|
| PCA9555PW | PCA9555PWJ | 935691433118 | Active | SOT355-1_118 | 2,500 | 訂單產品 |
樣品
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How does it work?
The interactive datasheets are based on the Nexperia MOSFET precision electrothermal models. With our interactive datasheets you can simply specify your own conditions interactively. Start by changing the values of the conditions. You can do this by using the sliders in the condition fields. By dragging the sliders you will see how the MOSFET will perform at the new conditions set.
PCA9555PW
Low-voltage 16-bit I2C-bus I/O port with interrupt and weak pull-up
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