NCA9535
Low-voltage 16-bit I2C and SMBus low-power I/O expander with interrupt output and configuration registers
The NCA9535 provides 16 bits of General Purpose Input/Output (GPIO) expansion for I2C?-?bus?/?SMBus applications. It is designed for a wide voltage range of 1.65 V to 5.5 V with interrupt. 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 NCA9535 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 NCA9535 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 NCA9535 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 1.65 V to 5.5 V
Low standby current consumption:
2.5 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
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
Package offered: TSSOP24 and HWQFN24
Specified from -40 °C to +85 °C
參數(shù)類型
| 型號 | VCC (V) | VCC(B) (V) | Logic switching levels | Power dissipation considerations | Tamb (°C) | Package name |
|---|---|---|---|---|---|---|
| NCA9535BY | 1.65?-?5.5 | - | CMOS | low | -40~85 | HWQFN24 |
| NCA9535BY-Q100 | 1.65?-?5.5 | - | CMOS | low | -40~125 | HWQFN24 |
| NCA9535PW | TSSOP24 | |||||
| NCA9535PW-Q100 | TSSOP24 |
封裝
| 型號 | 可訂購的器件編號，（訂購碼(12NC)） | 狀態(tài) | 標(biāo)示 | 封裝 | 外形圖 | 回流焊/波峰焊 | 包裝 |
|---|---|---|---|---|---|---|---|
| NCA9535BY | NCA9535BYHP (935691546128) |
Active | NCA9535 |
HWQFN24 (SOT8041-1) |
SOT8041-1 | SOT8041-1_128 | |
| NCA9535BY-Q100 | NCA9535BY‑Q100HP (935691547128) |
Active | NCA9535 |
HWQFN24 (SOT8041-1) |
SOT8041-1 | SOT8041-1_128 | |
| NCA9535PW | NCA9535PWJ (935691436118) |
Active | NCA9535PW |
TSSOP24 (SOT355-1) |
SOT355-1 |
SSOP-TSSOP-VSO-WAVE
|
SOT355-1_118 |
| NCA9535PW-Q100 | NCA9535PW‑Q100J (935691457118) |
Active | NCA9535PW |
TSSOP24 (SOT355-1) |
SOT355-1 |
SSOP-TSSOP-VSO-WAVE
|
SOT355-1_118 |
環(huán)境信息
| 型號 | 可訂購的器件編號 | 化學(xué)成分 | RoHS | RHF指示符 |
|---|---|---|---|---|
| NCA9535BY | NCA9535BYHP | NCA9535BY |
|
|
| NCA9535BY-Q100 | NCA9535BY‑Q100HP | NCA9535BY-Q100 |
|
|
| NCA9535PW | NCA9535PWJ | NCA9535PW |
|
|
| NCA9535PW-Q100 | NCA9535PW‑Q100J | NCA9535PW-Q100 |
|
|
文檔 (12)
| 文件名稱 | 標(biāo)題 | 類型 | 日期 |
|---|---|---|---|
| NCA9535 | Low-voltage 16-bit I2C and SMBus low-power I/O expander with interrupt output and configuration registers | Data sheet | 2024-08-05 |
| AN90063 | Questions about package outline drawings | Application note | 2025-10-22 |
| SOT355-1 | 3D model for products with SOT355-1 package | Design support | 2020-01-22 |
| nca9535 | NCA9535 IBIS Model | IBIS model | 2023-04-07 |
| Nexperia_package_poster | Nexperia package poster | Leaflet | 2020-05-15 |
| SOT8041-1 | plastic thermal enhanced very very thin Quad Flat packages, no leads;24 terminals; 0.5 mm pitch; 4 x 4 x 0.75 mm body | Package information | 2024-04-23 |
| 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 |
| NCA95XX_Arduino_Sketches | NCA95XX Arduino? Sketch Examples | Software | 2023-03-12 |
| NCA95XX_EVB_Software | NCA95XX EVB GUI | Software | 2023-03-12 |
| UM90016 | NCA95xx GPIO expander EVB (Arduino? shield compatible) | User manual | 2024-02-23 |
| UM90017 | NCA95XX Evaluation Board: Quick-Start Guide | User manual | 2023-01-18 |
| SSOP-TSSOP-VSO-WAVE | Footprint for wave soldering | Wave soldering | 2009-10-08 |
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