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NCA9539PW中文资料
NCA9539PW数据手册规格书PDF详情
General description
The NCA9539 provides 16 bits of General Purpose Input/Output (GPIO) expansion with interrupt
and reset for I²C-bus/SMBus applications. It is designed for a wide voltage range of 1.65 V to
5.5 V. 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 NCA9539 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 read register. The NCA9539 has an opendrain
interrupt output which is activated when any one of the GPIO changes from its corresponding
input port register state. INT can be connected to the interrupt input of a microcontroller. By
sending an interrupt signal on this line, the remote I/O can inform the microcontroller if there is
incoming data on its ports without having to communicate via the I²C-bus. Thus, NCA9539 can
remain a simple slave. The power on reset sets the registers to default values and initializes the
device state machine. The RESET pin can be used to achieve same reset functionality without
power down/up cycling by keeping active low. The state machine and the registers are in their
default state until the RESET input is once again HIGH. This input requires pull up to VCC. The
NCA9539 has two address pins A0 and A1 which can be used to configure the I²C bus slave
address of the device. It allows up-to four 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)
• Reset input for resetting NCA9539 to default values (RESET)
• 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
• Specified from -40 °C to +85 °C
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
NOVOSENSE/纳芯微 |
23+ |
TSSOP24 |
45000 |
纳芯微全系列在售,可出样品 |
|||
NOVOSENSE/纳芯微 |
23+ |
TSSOP24 |
25000 |
专业配单,原装正品假一罚十,代理渠道价格优 |
|||
NOVOSENSE/纳芯微 |
22+ |
24000 |
原装正品现货,实单可谈,量大价优 |
||||
NOVOSENSE(纳芯微) |
2117+ |
TSSOP-20 |
315000 |
2500个/圆盘一级代理专营品牌!原装正品,优势现货, |
|||
NOVOSENSE(纳芯微) |
2021+ |
TSSOP-20 |
2866 |
||||
纳芯微电子 |
21+ |
TSSOP20 |
291 |
全新原装鄙视假货15118075546 |
|||
NOVOSENSE/纳芯微 |
21+ |
TSSOP20 |
5375 |
保证原装正品,需要直接联系张小姐,13544103396 |
|||
NOVOSENSE |
22+ |
N/A |
2500 |
进口原装,优势现货 |
|||
NOVOSENSE |
22+ |
SMD |
10000 |
||||
NOVOSENSE(纳芯微) |
22+ |
10000 |
原装现货 支持实单 |
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Datasheet数据表PDF页码索引
- P1
- P2
- P3
- P4
- P5
- P6
- P7
- P8
- P9
- P10
- P11
- P12
- P13
- P14
- P15
- P16
- P17
- P18
- P19
- P20
- P21
- P22
- P23
- P24
- P25
- P26
- P27
- P28
- P29
- P30
- P31
- P32
- P33
- P34
- P35
- P36
- P37
- P38
- P39
- P40
- P41
- P42
- P43
- P44
- P45
- P46
- P47
- P48
- P49
- P50
- P51
- P52
- P53
- P54
- P55
- P56
- P57
- P58
- P59
- P60
- P61
- P62
- P63
- P64
- P65
- P66
- P67
- P68
- P69
- P70
- P71
- P72
- P73
- P74
- P75
- P76
- P77
- P78
- P79
- P80
- P81
- P82
- P83
- P84
Nexperia B.V. All rights reserved 安世半导体(中国)有限公司
Nexperia是一家全球半导体公司,总部位于荷兰的尼姆兴,拥有员工超过14,000人,遍布欧洲、亚洲和美国。作为半导体领域的领先专家,Nexperia专注于开发和生产必要的半导体元件,为全球各个行业提供关键的电子设计解决方案。公司产品被广泛应用于汽车、工业与电力、计算、消费类电子、移动设备和可穿戴行业。 Nexperia的产品组合包括二极管、双极晶体管、ESD保护器件、MOSFET、GaN FET以及模拟和逻辑IC,其产品被认为在工艺、尺寸、功耗和性能等方面具有高效率和行业标杆。公司致力于创新、高质量的产品开发,帮助客户开发节能和可持续的解决方案。 Nexperia建立了高效的供应链管理流程