ChongMing Group (HK) Int'l Co., Ltd
| Payment Terms | Paypal, Western Union, TT |
| Supply Ability | 50000 Pieces per Day |
| Delivery Time | The goods will be shipped within 3 days once received fund |
| Packaging Details | TSSOP20 |
| Description | Translating Switch Interface 20-TSSOP |
| Supply Voltage - Min | 2.3 V |
| Supply Voltage - Max | 5.5 V |
| Minimum Operating Temperature | - 40 C |
| Maximum Operating Temperature | + 85 C |
| Pd - Power Dissipation | 400 mW |
| Product Type | Switch ICs - Various |
| Brand Name | TI |
| Model Number | PCA9545APWR |
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Product Specification
| Payment Terms | Paypal, Western Union, TT | Supply Ability | 50000 Pieces per Day |
| Delivery Time | The goods will be shipped within 3 days once received fund | Packaging Details | TSSOP20 |
| Description | Translating Switch Interface 20-TSSOP | Supply Voltage - Min | 2.3 V |
| Supply Voltage - Max | 5.5 V | Minimum Operating Temperature | - 40 C |
| Maximum Operating Temperature | + 85 C | Pd - Power Dissipation | 400 mW |
| Product Type | Switch ICs - Various | Brand Name | TI |
| Model Number | PCA9545APWR | ||
| High Light | ethernet controller ic ，ethernet transceiver ic | ||
PCA9545APWR Ethernet Switch IC Various 4-Ch I2C & SMBus Multiplexer
1 Features
I2C Bus and SMBus Compatible
Four Active-Low Interrupt Inputs
Active-Low Interrupt Output
Active-Low Reset Input
Two Address Terminals, Allowing up to Four Devices on the I2C Bus
Channel Selection via I2C Bus, in Any Combination
Power-Up With All Switch Channels Deselected
Low RON Switches
Allows Voltage-Level Translation Between 1.8-V, 2.5-V, 3.3-V, and 5-V Buses
No Glitch on Power-Up
Supports Hot Insertion
Low Standby Current
Operating Power-Supply Voltage Range of 2.3 V to 5.5 V
5.5 V Tolerant Inputs
0 to 400-kHz Clock Frequency
Latch-Up Performance Exceeds 100 mA per JESD 78
ESD Protection Exceeds JESD 22
– 2000-V Human-Body Model (A114-A)
– 1000-V Charged-Device Model (C101)
2 Applications
• Servers
• Routers (Telecom Switching Equipment)
• Factory Automation
• Products With I2C Slave Address Conflicts (e.g. Multiple, Identical Temp Sensors)
3 Description
The PCA9545A is a quad bidirectional translating switch controlled via the I2C bus. The SCL/SDA upstream pair fans out to four downstream pairs, or channels. Any individual SCn/SDn channel or combination of channels can be selected, determined by the contents of the programmable control register. Four interrupt inputs (INT3–INT0), one for each of the downstream pairs, are provided. One interrupt (INT) output acts as an AND of the four interrupt inputs.
An active-low reset (RESET) input allows the PCA9545A to recover from a situation in which one of the downstream I2C buses is stuck in a low state. Pulling RESET low resets the I2C state machine and causes all the channels to be deselected, as does the internal power-on reset function.
The pass gates of the switches are constructed such that the VCC terminal can be used to limit the maximum high voltage, which will be passed by the PCA9545A. This allows the use of different bus voltages on each pair, so that 1.8-V, 2.5-V, or 3.3-V parts can communicate with 5-V parts, without any additional protection. External pull-up resistors pull the bus up to the desired voltage level for each channel. All I/O terminals are 5.5 V tolerant.
Device Information
|
PART NUMBER |
PACKAGE |
BODY SIZE (NOM) |
|
PCA9545A |
TSSOP (20) |
6.50 mm x 4.40 mm |
Company Details
Business Type:
Distributor/Wholesaler
Year Established:
2008
Total Annual:
5000000-7000000
Employee Number:
80~100
Ecer Certification：
Active Member
CHONGMING GROUP (HK) INT'L CO., LTD. located in Hong Kong and Shenzhen. We are an independent Distributor of Electronic Components,established in 2008. AS a growing fast company, CM GROUP is renowned for its world-class efficiency, excellent services, and extraordinary ability to supply electron... CHONGMING GROUP (HK) INT'L CO., LTD. located in Hong Kong and Shenzhen. We are an independent Distributor of Electronic Components,established in 2008. AS a growing fast company, CM GROUP is renowned for its world-class efficiency, excellent services, and extraordinary ability to supply electron...
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