Datasheet > PCA9554ABS,115

PCA9554ABS,115

更新时间： 2024-02-07 17:11:38

品牌	Logo	应用领域
恩智浦 - NXP		PC 外围集成电路
页数	文件大小	规格书
35页	592K
描述
PCA9554/PCA9554A - 8-bit I²C-bus and SMBus I/O port with interrupt QFN 16-Pin

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技术参数
数据手册

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PCA9554ABS,115 技术参数

Source Url Status Check Date：	2013-06-14 00:00:00	生命周期：	Obsolete
零件包装代码：	QFN	包装说明：	HVQCCN,
针数：	16	Reach Compliance Code：	unknown
风险等级：	5.78	JESD-30 代码：	S-PQCC-N16
JESD-609代码：	e4	长度：	4 mm
I/O 线路数量：	8	端口数量：	1
端子数量：	16	最高工作温度：	85 °C
最低工作温度：	-40 °C	封装主体材料：	PLASTIC/EPOXY
封装代码：	HVQCCN	封装形状：	SQUARE
封装形式：	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	座面最大高度：	1 mm
最大供电电压：	5.5 V	最小供电电压：	2.3 V
标称供电电压：	3 V	表面贴装：	YES
技术：	CMOS	温度等级：	INDUSTRIAL
端子面层：	NICKEL PALLADIUM GOLD	端子形式：	NO LEAD
端子节距：	0.65 mm	端子位置：	QUAD
宽度：	4 mm	uPs/uCs/外围集成电路类型：	PARALLEL IO PORT, GENERAL PURPOSE
Base Number Matches：	1

PCA9554ABS,115 数据手册

PCA9554; PCA9554A

NXP Semiconductors

8-bit I²C-bus and SMBus I/O port with interrupt

6.1.2 Register 0 - Input Port register

This register is a read-only port. It reflects the incoming logic levels of the pins, regardless

of whether the pin is defined as an input or an output by Register 3. Writes to this register

have no effect.

The default ‘X’ is determined by the externally applied logic level, normally ‘1’ when no

external signal externally applied because of the internal pull-up resistors.

Table 5.

Bit

Symbol

Access

Value

Description

read only

determined by externally applied logic level

6.1.3 Register 1 - Output Port register

This register reflects the outgoing logic levels of the pins defined as outputs by Register 3.

Bit values in this register have no effect on pins defined as inputs. Reads from this register

return the value that is in the flip-flop controlling the output selection, not the actual pin

value.

Table 6.

Legend: * default value.

Bit

Symbol

Access

Value

Description

reflects outgoing logic levels of pins defined as

outputs by Register 3

PCA9554_9554A

All information provided in this document is subject to legal disclaimers.

Product data sheet

Rev. 9 — 19 March 2013

7 of 35

1...4 5 678 9 10...35

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