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Product Detailed Parameters
- Description：IC XPNDR 400KHZ I2C 56TSSOP
- Series：-
- Mfr：NXP USA Inc.
- Package：Tape & Reel (TR)
- Number of I/O：40
- Interface：I2C
- Interrupt Output：Yes
- Features：POR
- Output Type：Push-Pull
- Current - Output Source/Sink：10mA, 25mA
- Clock Frequency：400 kHz
- Voltage - Supply：2.3V ~ 5.5V
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：56-TFSOP (0.240", 6.10mm Width)
- Supplier Device Package：56-TSSOP
- Grade：-
- Qualification：-
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Overview
The PCA9505DGG,118 is a 40-bit I2C-bus I/O port expander organized in five banks of eight I/Os. It operates within a supply voltage range of 2.3 V to 5.5 V and supports standard mode (100 kHz) and fast mode (400 kHz). At 5 V, outputs source 10 mA and sink 15 mA with a total package load of 600 mA. The device includes 100 kΩ internal pull-up resistors on all I/Os. It features an active LOW interrupt output, an active LOW output enable pin, and three address select pins for up to eight devices on the bus. All I/Os default to inputs at power-up.
Feature Summary
- Includes 100 kΩ internal pull-up resistors on all I/O ports
- Active LOW output enable pin allows global 3-state control
- Open-drain interrupt output monitors input logic level changes
- Supports live insertion with IOFF and power-up 3-state protection
Applications
- Servers
- RAID systems
- Industrial control
- Medical equipment
- PLCs
Procurement Notes
Verify the ordering suffix '118' indicates reel packing in 13-inch q1 non-dry pack format. Confirm the TSSOP56 package type matches the SOT364-1 specification. Ensure the temperature range covers -40 °C to +85 °C. Check for discontinuation notices regarding drop-in replacements like PCA9505DGGY.
Selection Notes
Select this part when internal pull-ups are required for input pins. Compare against PCA9506 if lower standby current is needed without internal pull-ups. Verify I2C bus speed compatibility with standard or fast mode requirements. Ensure the 5.5 V tolerant I/Os match the system voltage levels.
Part Context
The PCA9505DGG,118 belongs to the PCA9505/PCA9506 family of 40-bit I/O expanders. It shares identical functionality with the PCA9506 except for the inclusion of internal pull-up resistors. Both devices utilize the same register map and interface protocols, differing primarily in static power consumption characteristics due to the pull-up configuration.
Replacement Considerations
The PCA9505DGGY is documented as a drop-in replacement for the PCA9505DGG. Verify packaging differences between dry pack and non-dry pack options before substitution.
