PCA9538

現行

具中斷、重設和配置暫存器的 8 位元 2.3 至 5.5-V I2C/SMBus I/O 擴展器

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產品規格表

document-pdfAcrobat PCA9538 Remote 8-Bit I2C AND SMBus Low-power I/O Expander with Interrupt Output, Reset, and Configuration Registers datasheet (Rev. G) (英文) PDF | HTML

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TCA9538

現行

具中斷、重設和配置暫存器的 8 位元 1.65 至 5.5-V I2C/SMBus I/O 擴展器 Performance enhancements for power-on reset, interrupt, and lower voltage operation.

PCA9538

現行

立即訂購

產品詳細資料

Number of I/Os

Features

Configuration registers, Interrupt pin, Reset pin

Addresses

Rating

Catalog

Frequency (max) (MHz)

0.4

Operating temperature range (°C)

-40 to 85

Number of I/Os

Features

Configuration registers, Interrupt pin, Reset pin

Addresses

Rating

Catalog

Frequency (max) (MHz)

0.4

Operating temperature range (°C)

-40 to 85

SSOP (DB)

48.36 mm² (6.2 mm × 7.8 mm)

SOIC (DW)

106.09 mm² (10.3 mm × 10.3 mm)

TVSOP (DGV)

23.04 mm² (3.6 mm × 6.4 mm)

TSSOP (PW)

32 mm² (5 mm × 6.4 mm)

Low standby current consumption of 1 µA max
I²C to parallel port expander
Open-drain active-low interrupt output
Active-low reset input
Operating power-supply voltage range of 2.3 V to 5.5 V
5-V Tolerant I/O ports
400-kHz Fast I²C bus
Two hardware address pins allow up to four devices on the I²C/SMBus
Input and output configuration register
Polarity inversion register
Power-up with all channels configured as inputs
No glitch on power up
Noise filter on SCL/SDA inputs
Latched outputs with high-current drive maximum capability for directly driving LEDs
Latch-up performance exceeds 100 mA Per JESD 78, class II
ESD protection exceeds JESD 22
- 2000-V Human-body model (A114-A)
- 200-V Machine model (A115-A)
- 1000-V Charged-device model (C101)

Low standby current consumption of 1 µA max
I²C to parallel port expander
Open-drain active-low interrupt output
Active-low reset input
Operating power-supply voltage range of 2.3 V to 5.5 V
5-V Tolerant I/O ports
400-kHz Fast I²C bus
Two hardware address pins allow up to four devices on the I²C/SMBus
Input and output configuration register
Polarity inversion register
Power-up with all channels configured as inputs
No glitch on power up
Noise filter on SCL/SDA inputs
Latched outputs with high-current drive maximum capability for directly driving LEDs
Latch-up performance exceeds 100 mA Per JESD 78, class II
ESD protection exceeds JESD 22
- 2000-V Human-body model (A114-A)
- 200-V Machine model (A115-A)
- 1000-V Charged-device model (C101)

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TCAL9538

現行

具有中斷、重設和快捷 I/O 配置的 8 位轉換 I²C-bus/SMBus I/O 擴展器 Enhanced version with agile I/O configuration

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重要文件	類型	標題	格式選項
*	資料表	PCA9538 Remote 8-Bit I2C AND SMBus Low-power I/O Expander with Interrupt Output, Reset, and Configuration Registers datasheet (Rev. G)	PDF \| HTML	2021/3/11
	應用說明	Understanding Transient Drive Strength vs. DC Drive Strength in Level-Shifters (Rev. A)	PDF \| HTML	2024/7/3
	應用說明	I2C Dynamic Addressing		2019/4/25
	應用說明	Choosing the Correct I2C Device for New Designs	PDF \| HTML	2016/9/7
	應用說明	Understanding the I2C Bus	PDF \| HTML	2015/6/30
	應用說明	Maximum Clock Frequency of I2C Bus Using Repeaters		2015/5/15
	應用說明	I2C Bus Pull-Up Resistor Calculation	PDF \| HTML	2015/2/13