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PCA9553DP/01

更新时间： 2024-01-07 08:35:05

品牌	Logo	应用领域
恩智浦 - NXP		驱动器光电二极管
页数	文件大小	规格书
26页	147K
描述
4-bit I2C-bus LED driver with programmable blink rates

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技术参数
数据手册

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PCA9553DP/01 技术参数

是否Rohs认证：	符合	生命周期：	Obsolete
包装说明：	TSSOP, TSSOP8,.19	Reach Compliance Code：	unknown
风险等级：	5.83	Is Samacsys：	N
JESD-30 代码：	R-PDSO-G8	端子数量：	8
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：	TSSOP
封装等效代码：	TSSOP8,.19	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	电源：	2.5/5 V
认证状态：	Not Qualified	子类别：	Display Drivers
表面贴装：	YES	温度等级：	INDUSTRIAL
端子形式：	GULL WING	端子节距：	0.635 mm
端子位置：	DUAL	Base Number Matches：	1

PCA9553DP/01 数据手册

PCA9553

NXP Semiconductors

4-bit I²C-bus LED driver with programmable blink rates

7. Functional description

Refer to Figure 1 “Block diagram”.

7.1 Device address

Following a START condition the bus master must output the address of the slave it is

accessing. The address of the PCA9553/01 is shown in Figure 5 and PCA9553/02 in

Figure 6.

PCA9553TK uses the version /01 address.

slave address

R/W

002aad742

002aad743

Fig 5. PCA9553/01 slave address

Fig 6. PCA9553/02 slave address

The last bit of the address byte deﬁnes the operation to be performed. When set to logic 1

a read is selected, while a logic 0 selects a write operation.

7.2 Control register

Following the successful acknowledgement of the slave address, the bus master will send

a byte to the PCA9553 which will be stored in the Control register.

B2 B1 B0

002aad744

Auto-Increment

flag

Reset state: 00h

Fig 7. Control register

The lowest 3 bits are used as a pointer to determine which register will be accessed.

If the Auto-Increment ﬂag is set, the three low order bits of the Control register are

automatically incremented after a read or write. This allows the user to program the

registers sequentially. The contents of these bits will rollover to ‘000’ after the last register

is accessed.

When the Auto-Increment ﬂag is set (AI = 1) and a read sequence is initiated, the

sequence must start by reading a register different from ‘0’ (B2 B1 B0 ≠ 0 0 0).

Only the 3 least signiﬁcant bits are affected by the AI ﬂag.

Unused bits must be programmed with zeroes.

PCA9553_6

Product data sheet

Rev. 06 — 29 December 2008

5 of 26

1 2 3 456 7 8...26

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与PCA9553DP/01相关器件

型号	品牌	描述	获取价格	数据表
PCA9553DP/01-T	NXP	IC,LASER DIODE/LED DRIVER,TSSOP,8PIN,PLASTIC	获取价格
PCA9553DP/02	NXP	4-bit I2C-bus LED driver with programmable blink rates	获取价格
PCA9553DP/02-T	NXP	4-bit I2C-bus LED driver with programmable blink rates	获取价格
PCA9553DP01	NXP	4-bit I2C LED driver with programmable blink rates	获取价格
PCA9553DP02	NXP	4-bit I2C LED driver with programmable blink rates	获取价格
PCA9553TK	NXP	4-bit I2C-bus LED driver with programmable blink rates	获取价格