PCA9701D,118 NXP

PCA9701 PCA9702 18 V tolerant SPI 16-bit/8-bit GPI with INT Rev. 7 26 September 2014 Product data sheet 1. General description The PCA9701/PCA9702 are low power 18 V tolerant SPI General Purpose Input (GPI) shift register designed to monitor the status of switch inputs. It generates an interrupt when one or more of the switch inputs change state. The input level is recognized as a HIGH when it is greater than 0.7 V and as a LOW when it is less than 0.4 V DD DD (minimum threshold of 2 V at 5 V node). The PCA9701 can monitor up to 16 switch inputs and the PCA9702 can monitor up to 8 switch inputs. The falling edge of the CS pin samples the input port status and clears the interrupt. When CS is LOW, the rising edge of the SCLK loads the shift register and shifts the value out of the shift register. The serial input is sampled on the falling edge of SCLK. Each of the input ports has a 18 V breakdown ESD protection circuit. When used with a series resistor (minimum 100 k ), the input can connect to a 12 V battery and support double battery, reverse battery, 27 V jump start and 40 V load dump conditions in automotive applications. Higher voltages can be tolerated on the inputs depending on the series resistor used to limit the input current. With both the high breakdown voltage and high ESD, these devices are useful for both automotive and mobile applications. The PCA9703/PCA9704 are new pin compatible devices for the PCA9701/PCA9702 which have an interrupt masking feature allowing selected inputs to not generate interrupts and provides higher ground offset of 0.55 V (minimum of 2.5 V at 5 V node) DD with minimum hysteresis of 0.05 V (minimum of 225 mV at 5 V node). DD 2. Features and benefits 16 general purpose input ports (PCA9701) or 8 general purpose input ports (PCA9702) 18 V tolerant input ports with 100 k external series resistor Input LOW threshold 0.4 V with minimum of 2 V at V =4.5 V DD DD Open-drain interrupt output Interrupt enable pin (INT EN) disables interrupt output V range: 2.5 V to 5.5 V DD I is very low 2.5 A maximum DD SPI serial interface with speeds up to 5 MHz ESD protection exceeds 8 kV HBM per JESD22-A114, 350 V MM, and 1000 V CDM per JESD22-C101 Latch-up testing is done to JEDEC Standard JESD78 which exceeds 100 mA Operating temperature range: 40 C to +125 CPCA9701 PCA9702 NXP Semiconductors 18 V tolerant SPI 16-bit/8-bit GPI with INT PCA9701 offered in SO24, TSSOP24 and HWQFN24 packages PCA9702 offered in TSSOP16 package 3. Applications Body control modules Switch monitoring Industrial equipment Cellular telephones Emergency lighting SBC wake pin extension 4. Ordering information Table 1. Ordering information Type number Topside Package marking Name Description Version PCA9701D PCA9701D SO24 plastic small outline package 24 leads SOT137-1 body width 7.5 mm PCA9701HF 9701 HWQFN24 plastic thermal enhanced very very thin quad flat package SOT994-1 no leads 24 terminals body 4 4 0.75 mm PCA9701PW PCA9701PW TSSOP24 plastic thin shrink small outline package 24 leads SOT355-1 body width 4.4 mm PCA9702PW PCA9702 TSSOP16 plastic thin shrink small outline package 16 leads SOT403-1 body width 4.4 mm 4.1 Ordering options Table 2. Ordering options Type number Orderable part Package Packing method Minimum Temperature range number order quantity PCA9701D PCA9701D,118 SO24 Reel 13 Q1/T1 1000 T = 40 C to +125 C amb *standard mark SMD PCA9701HF PCA9701HF,118 HWQFN24 Reel 13 Q1/T1 6000 T = 40 C to +125 C amb *standard mark SMD PCA9701PW PCA9701PW,118 TSSOP24 Reel 13 Q1/T1 2500 T = 40 C to +125 C amb *standard mark SMD PCA9702PW PCA9702PW,118 TSSOP16 Reel 13 Q1/T1 2500 T = 40 C to +125 C amb *standard mark SMD PCA9701 PCA9702 All information provided in this document is subject to legal disclaimers. NXP Semiconductors N.V. 2014. All rights reserved. Product data sheet Rev. 7 26 September 2014 2 of 29