MAX7367/MAX7368/MAX7369 19-0644 Rev 2 2/09 2 4-Channel I C Switches/Multiplexer General Description Features Four-Channel, Bidirectional Bus Expansion The MAX7367/MAX7368/MAX7369 bidirectional, four- 2 2 channel I C switches/multiplexer expand the main I C Voltage-Level Translation bus up to four extended buses. The MAX7369 1:4 Low 6A (typ) Supply Current, 0.1A (typ) 2 multiplexer connects the main I C bus to one channel Standby Current at a time. The MAX7367/MAX7368 four-channel Low 16 (typ) On-Resistance 2 switches connect the main I C bus to one or more 2 Channel Selection Through I C channels at a time. 2 I C-Compatible Normal or Fast Mode 2 These devices isolate bus loading by extending the I C Device Address Selection bus onto different channels. The MAX7367/MAX7368/ Up to Four Addresses (MAX7367) MAX7369 allow more devices to be interconnected to a Up to Eight Addresses (MAX7368/MAX7369) master controller and multiple devices with the same 2 Bus-Loading Isolation I C address to communicate to a master. The channels 2 are selected through the main I C bus by writing to the Support Clock Stretch, Synchronization, and Arbitration internal control register of the device. 2 Hot Insertion Any device connected to an I C bus can transmit and receive signals. The MAX7367/MAX7368/MAX7369 are 2.3V to 5.5V Supply Voltage Range transparent to signals sent and received at each chan- 5V-Tolerant Inputs nel, allowing multiple masters. These devices are com- Interrupt from Extended Buses 2 patible with the I C protocol of clock stretch, (MAX7367/MAX7369) synchronization, and arbitration in case multiple mas- Hardware Reset (MAX7367/MAX7368) ters address the bus at the same time. All devices are set to the default state during initial Ordering Information power-up. The MAX7367/MAX7368 have a RESET input allowing external circuitry to set the MAX7367/MAX7368 PIN- to its default state anytime after the device has pow- PART TEMP RANGE PACKAGE ered up. The MAX7367/MAX7369 have interrupt inputs, allowing devices on the extended bus to send an inter- MAX7367EUP+ -40C to +85C 20 TSSOP rupt signal to the master on the main bus. MAX7368EUE+ -40C to +85C 16 TSSOP The MAX7367/MAX7369 are available in 20-pin TSSOP MAX7369EUP+ -40C to +85C 20 TSSOP packages, and the MAX7368 is available in a 16-pin +Denotes a lead(Pb)-free/RoHS-compliant package. TSSOP package. All devices operate over the -40C to +85C extended temperature range. Pin Configurations TOP VIEW Applications + A0 1 20 V DD Servers A1 2 19 SDA RAID RESET 3 18 SCL Cellular Phones Base Stations INT0 4 MAX7367 17 INT SD0 5 16 SC3 PCs Multimedia Electronics SC0 6 15 SD3 SAN/NAS INT1 7 14 INT3 SD1 8 13 SC2 SC1 9 12 SD2 GND 10 11 INT2 TSSOP Pin Configurations continued at end of data sheet. Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com.2 4-Channel I C Switches/Multiplexer ABSOLUTE MAXIMUM RATINGS V to GND...........................................................-0.3V to +6.0V Continuous Power Dissipation (T = +70C) DD A All Other Pins to GND............................................-0.3V to +6.0V 20-Pin TSSOP (derate 11.0mW/C Input Currents above T = +70C) .................................................. 879.1mW A V ...............................................................................100mA 16-Pin TSSOP (derate 9.4mW/C DD GND ..............................................................................100mA above T = +70C) .................................................. 754.7mW A All Input Pins.................................................................20mA Operating Temperature Range ...........................-40C to +85C Output Current ....................................................................25mA Junction Temperature......................................................+150C Storage Temperature Range .............................-65C to +150C Lead Temperature (soldering, 10s) ................................ +300C Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ELECTRICAL CHARACTERISTICS (3.3V SUPPLY) (V = 2.3V to 3.6V, T = -40C to +85C, unless otherwise noted. Typical values are at V = 3.3V, T = +25C.) (Note 1) DD A DD A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS POWER SUPPLY Supply Voltage V 2.3 3.6 V DD No load, all inputs = V or GND, V = 3.6V, DD DD Standby Current I 0.1 1 A STB all channels disabled No load, all inputs = V or GND, DD Supply Current I f = 100kHz, V = 3.6V, 630 A DD SCL DD all channels disabled Power-On-Reset (POR) V V rising 1.4 2.1 V POR DD Voltage Power-On-Reset Hysteresis V 0.4 V HYST INPUT SCL, INPUT/OUTPUT SDA +0.3 x Low-Level Input Voltage V (Note 2) -0.2 V IL V DD 0.7 x High-Level Input Voltage V 5.5 V IH V DD V = 0.4V 3 30 OL Low-Level Output Current I mA OL V = 0.6V 6 50 OL Input Leakage Current I -1 +1 A L Input Capacitance C All inputs = GND 15 pF I SELECT INPUTS A2, A1, A0, INT0INT3, RESET +0.3 x Low-Level Input Voltage V (Note 2) -0.2 V IL V DD 0.7 x High-Level Input Voltage V 5.5 V IH V DD Input Leakage Current I -1 +1 A L Input Capacitance C All inputs = GND 5 pF I 2 MAX7367/MAX7368/MAX7369