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PCAL6524HEAZ Datasheet(PDF) 6 Page - NXP Semiconductors |
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PCAL6524HEAZ Datasheet(HTML) 6 Page - NXP Semiconductors |
6 / 69 page PCAL6524 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2016. All rights reserved. Product data sheet Rev. 1.1 — 21 September 2016 6 of 69 NXP Semiconductors PCAL6524 Ultra low-voltage translating 24-bit Fm+ I2C-bus/SMBus I/O expander 5.2 Pin description Table 3. Pin description Symbol Pin Description TSSOP32 HUQFN32 Type SCL 1 29 I Serial clock line. Connect to VDD(I2C-bus) through a pull-up resistor. SDA 2 30 I/O Serial data line. Connect to VDD(I2C-bus) through a pull-up resistor. VDD(I2C-bus) 3 31 power supply Supply voltage of I2C-bus. Connect directly to the VDD of the external I2C-bus master. Provides voltage-level translation. INT 4 32 O Interrupt output. Connect to VDD(I2C-bus) or VDD(P) through a pull-up resistor. P0_0[1] 5 1 I/O Port 0 input/output 0. P0_1[1] 6 2 I/O Port 0 input/output 1. P0_2[1] 7 3 I/O Port 0 input/output 2. P0_3[1] 8 4 I/O Port 0 input/output 3. P0_4[1] 9 5 I/O Port 0 input/output 4. P0_5[1] 10 6 I/O Port 0 input/output 5. P0_6[1] 11 7 I/O Port 0 input/output 6. P0_7[1] 12 8 I/O Port 0 input/output 7. P1_0[2] 13 9 I/O Port 1 input/output 0. P1_1[2] 14 10 I/O Port 1 input/output 1. P1_2[2] 15 11 I/O Port 1 input/output 2. P1_3[2] 16 12 I/O Port 1 input/output 3. P1_4[2] 17 13 I/O Port 1 input/output 4. P1_5[2] 18 14 I/O Port 1 input/output 5. P1_6[2] 19 15 I/O Port 1 input/output 6. P1_7[2] 20 16 I/O Port 1 input/output 7. P2_0[3] 21 17 I/O Port 2 input/output 0. P2_1[3] 22 18 I/O Port 2 input/output 1. P2_2[3] 23 19 I/O Port 2 input/output 2. P2_3[3] 24 20 I/O Port 2 input/output 3. P2_4[3] 25 21 I/O Port 2 input/output 4. P2_5[3] 26 22 I/O Port 2 input/output 5. P2_6[3] 27 23 I/O Port 2 input/output 6. P2_7[3] 28 24 I/O Port 2 input/output 7. VSS 29 25 ground Supply ground. ADDR 30 26 I Address input. Connect directly to VDD(I2C-bus), ground, SCL or SDA. VDD(P) 31 27 power supply Supply voltage of PCAL6524 for Port P. |
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