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MC33978AES中文资料
MC33978AES数据手册规格书PDF详情
The 33978 is designed to detect the closing and opening of up to 22 switch contacts. The switch status, either open or closed, is transferred to the microprocessor unit (MCU) through a serial peripheral interface (SPI). This SMARTMOS device also features a 24-to-1 analog multiplexer for reading the input channels as analog inputs. The analog selected input signal is buffered and provided on the AMUX output pin for the MCU to read.
Independent programmable wetting currents are available as needed for the application. A battery and temperature monitor are included in the IC and available via the AMUX pin.
The 33978 device has two modes of operation, Normal and Low-power mode (LPM). Normal mode allows programming of the device and supplies switch contacts with pull-up or pull-down current as it monitors the change of state on the switches. The LPM provides low quiescent current, which makes the 33978 ideal for automotive and industrial products requiring low sleep-state currents.
Features
•Fully functional operation 4.5 V ≤ VBATP ≤ 36 V
•Full parametric operation 6.0 V ≤ VBATP ≤ 28 V
•Operating switch input voltage range from -1.0 V to 36 V
•Eight programmable inputs (switches to battery or ground)
•14 switch-to-ground inputs
•Selectable wetting current (2, 6, 8, 10, 12, 14, 16, or 20 mA)
•Interfaces directly to an MCU using 3.3 V / 5.0 V SPI protocol
•Selectable wake-up on change of state
•Typical standby current IBATP = 30 μA and IDDQ = 10 μA
•Active interrupt (INT_B) on change-of-switch state
•Integrated battery and temperature sensing
Applications
•Automotive
•Heating ventilation and air conditioning (HVAC)
•Lighting
•Central gateway/in-vehicle networking
•Gasoline engine management
•Industrial
•Programmable logic control (PLC)
•Process control, temperature control
•Input-output control (I/O Control)
•Single board computer
•Ethernet switch
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
NXP USA Inc. |
24+ |
32-QFN-EP(5x5) |
25000 |
in stock接口IC-原装正品 |
|||
NXP |
ROHS/new original |
32-VFQFN |
10500 |
原装元器件供应现货支持。咨询更多现货库存,支持样 |
|||
NXP |
23+ |
NA |
4508 |
有挂有货原装正品现货,假一赔十 |
|||
NXP |
23+ |
QFN-32 |
6000 |
全新原装现货、诚信经营! |
|||
NXP |
21+ |
QFN32 |
25000 |
||||
NXP恩智浦 |
24+ |
N/A |
5000 |
只做原装 |
|||
NXP恩智浦 |
23+ |
N/A |
8000 |
只有原装,正品 |
|||
NXP/原装 |
QFN |
9124 |
原装现货当天可交货,长期备货支持BOM配单账期 |
||||
NXP/恩智浦 |
2024 |
QFN-32 |
13516 |
原装现货,欢迎咨询 |
|||
NXP/恩智浦 |
新批次 |
QFN-32 |
3000 |
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Datasheet数据表PDF页码索引
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NXP Semiconductors 恩智浦半导体公司
NXP恩智浦半导体 (NXP Semiconductors),简称NXP,创立于2006年,其前身为荷兰飞利浦公司于1953年成立。NXP公司总部位于荷兰埃因霍温。已拥有五十年的悠久历史。NXP在全球 30 多个国家和地区拥有约 30,000 名员工。2015年,恩智浦与另一家领先的半导体公司--飞思卡尔合并,得以在物联网和汽车领域进一步拓展业务,并着重发展安全可靠的边缘计算、连接技术和高效的电源管理解决方案。并在ADAS、下一代电动汽车以及跨物联网、移动设备和汽车生态系统的安全连接等关键领域确立了市场领导地位。NXP在2021年榜单中排名第一,MCU销售额达到37.95亿美元,从曾经前十强的