PCF8574A数据手册集成电路（IC）的I/O扩展器规格书PDF
| 厂商型号 |
PCF8574A |
| 参数属性 | PCF8574A 封装/外壳为16-SOIC（0.295"，7.50mm 宽）；包装为卷带（TR）剪切带（CT）Digi-Reel® 得捷定制卷带；类别为集成电路（IC）的I/O扩展器；产品描述：IC I/O EXPANDER I2C 8B 16SOIC |
| 功能描述 | 具有中断的 8 位 2.5V 至 5.5V I2C/SMBus I/O 扩展器 |
| 封装外壳 | 16-SOIC（0.295"，7.50mm 宽） |
| 制造商 | TI Texas Instruments |
| 中文名称 | 德州仪器 美国德州仪器公司 |
| 原厂标识 | TI |
| 数据手册 | |
| 更新时间 | 2025-8-5 23:01:00 |
| 人工找货 | PCF8574A价格和库存，欢迎联系客服免费人工找货 |
PCF8574A规格书详情
描述 Description
This 8-bit input/output (I/O) expander for the two-line bidirectional bus (I2C) is designed for 2.5-V to 6-V VCC operation.
The PCF8574A device provides general-purpose remote I/O expansion for most microcontroller families via the I2C interface [serial clock (SCL), serial data (SDA)].
The device features an 8-bit quasi-bidirectional I/O port (P0–P7), including latched outputs with high-current drive capability for directly driving LEDs. Each quasi-bidirectional I/O can be used as an input or output without the use of a data-direction control signal. At power on, the I/Os are high. In this mode, only a current source to VCC is active.
特性 Features
• Low standby-current consumption of 10 µA max
• I2C to parallel-port expander
• Open-drain interrupt output
• Compatible with most microcontrollers
• Latched outputs with high-current drive capability for directly driving LEDs
• Latch-up performance exceeds 100 mA Per JESD 78, Class II
技术参数
- 制造商编号
：PCF8574A
- 生产厂家
：TI
- Features
：Interrupt pin
- Supply voltage (Min) (V)
：2.5
- Supply voltage (Max) (V)
：6
- Addresses
：8
- Rating
：Catalog
- Frequency (Max) (kHz)
：100
- Operating temperature range (C)
：-40 to 85
| 供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
|---|---|---|---|---|---|---|---|
TI/德州仪器 |
24+ |
NA/ |
10 |
优势代理渠道,原装正品,可全系列订货开增值税票 |
询价 | ||
TI |
2016+ |
TSOP |
6000 |
只做原装,假一罚十,公司可开17%增值税发票! |
询价 | ||
PHI |
20+ |
SOP |
67500 |
原装优势主营型号-可开原型号增税票 |
询价 | ||
恩XP |
24+ |
SOP16 |
20000 |
全新原厂原装，进口正品现货，正规渠道可含税！！ |
询价 | ||
PHI |
1738+ |
SOP-16 |
8529 |
科恒伟业!只做原装正品,假一赔十! |
询价 | ||
PHI |
23+ |
DIP |
7000 |
绝对全新原装!100%保质量特价!请放心订购! |
询价 | ||
TI/德州仪器 |
24+ |
VQFN20 |
1313 |
大批量供应优势库存热卖 |
询价 | ||
恩XP |
23+ |
BGAQFP |
8659 |
原装公司现货!原装正品价格优势. |
询价 | ||
PCF8574A |
983 |
983 |
询价 | ||||
TI |
1536+5 |
SOIC16 |
10000 |
原装正品 |
询价 |
