PCA9554APW

Product Summary

The PCA9554APW is a 40-bit I2C-bus I/O port. The PCA9554APW provides 40-bit parallel input/output (I/O) port expansion for I2C-bus applications organized in 5 banks of 8 I/Os. At 5 V supply voltage, the outputs are capable of sourcing 10 mA and sinking 15 mA with a total package load of 600 mA to allow direct driving of 40 LEDs. Any of the 40 I/O ports can be configured as an input or output. Output ports are totem-pole and their logic state changes at the Acknowledge (bank change). The PCA9554APW is identical to the PCA9554APW except that it includes 100 kW internal pull-up resistors on all the I/Os. The PCA9554APW does not include the internal pull-ups on the I/Os to reduce power consumption when used as outputs or when the input is driven by a push-pull driver. The PCA9554APW can be configured to have each input port to be masked in order to prevent it from generating interrupts when its state changes and to have the I/O data logic state to be inverted when read by the system master.

Parametrics

PCA9554APW absolute maximum ratings: (1)VDD supply voltage: －0.5, +6 V; (2)VI input voltage: VSS － 0.5, 5.5 V; (3)II input current: ±20 mA; (4)VI/O(n)input/output voltage on any other pin: VSS － 0.5, 5.5 V; (5)VI/O(IO0n)input/output voltage on pin IO0 n: VSS － 0.5, 5.5 V; (6)IO(I/On)output current on an I/O pin: －20, +50 mA; (7)IDD supply current: 500 mA; (8)ISS ground supply current: 1100 mA; (9)Ptot total power dissipation: 500 mW; (10)Tstg storage temperature: －65, +150 °C.

Features

PCA9554APW features: (1)Standard mode (100 kHz)and Fast mode (400 kHz)compatible I2C－bus serial interface; (2)2.3 V to 5.5 V operation with 5.5 V tolerant I/Os; (4)40 configurable I/O pins that default to inputs at power－up; (5)PCA9505 includes 100 kW internal pull－up resistors on all the I/Os; (5)Low standby current; (7)－40 °C to +85 °C operation; (7)ESD protection exceeds 2000 V HBM per JESD22－A114, 200 V MM per JESD22－A115, and 1000 V CDM per JESD22－C101; (8)Latch－up testing is done to JEDEC Standard JESD78, which exceeds 100 mA; (9)Offered in TSSOP56 (PCA9505, PCA9506)and HVQFN56 (PCA9506)packages.

Diagrams