PI4ULS3V08M 1.2V to 3.6V Universal Bidirectional Level Shifter with Automatic Direction Control Features Description PI4ULS3V08M is designed for low voltage PI4ULS3V08M, is a 8-bit (octal) non-inverting operation: 1.2V to 3.6V bus transceiver with two separate supply rails: A port Universal bidirectional level shifting with (VCCA) and B port (VCCB) are set to operate at 1.2V to automatic direction control 3.6V. This arrangement permits universal bidirectional Fast bus speeds up to 90 Mbps for push-pull translation of differential signal levels over the voltage application Drive Capability 12mA ranges. Independent translation of each bit The PI4ULS3V08M is designed for asynchronous Each supply rail is configurable over supply range communication between data buses. Data is transmitted ESD Protection exceeds JESD22 from the A bus to the B bus, or vice versa, without 2000V Human Body Model (A114-B) direction control. All AX, and BX are tri-stated when 200V Machine Model (A115-A) data is coming from both directions at the same time. Latch-up performance exceeds 100mA per JESD 78 The output-enable (OE) input is used to disable outputs Industrial operation at -40C to +85C so buses are isolated. Package: 32-contact TQFN 3x6 The control pins OEx, TEST EN and OUT SEL are supplied by VCCB. To ensure the high impedance state during power- up or power- down, the output-enable (OEx) input Pin Configuration should be tied to VCC through a pull-up resistor: the minimum value of the resistor is determined by the current-sinking capability of the driver. Applications Voltage Translation Bus Relay Mobile Devices Pin Description Pin Name Description OEx 3-State Output Enable Inputs (Active Low) Ax Side A Inputs/Outputs Bx Side B Inputs/Outputs TEST EN Enable Test Mode OUT SEL Output impedance select TQFN-32L(Top View) GND Ground V ,V Power CCA CCB 2013-07-0003 PT0484 07/12/13 1 PI4ULS3V08M 1.2V to 3.6V Universal Bidirectional Level Shifter with Automatic Direction Control Block Diagram Truth Table Input OEx Outputs Loading Operation Bus B data to Bus A, or L CL 50pF Bus A data to Bus B H Z (Isolation) Note: 1. H = HIGH Signal Level, L = LOW Signal Level Z = High Impedance Test Mode / Output Impedance Select TEST EN Out SEL Conditions Normal Operation L L Low output impedance 300 Normal Operation L H High output impedance 2.2K Test MODE A B H L Test MODE B A H H Figure 1: Block Diagram Maximum Ratings Note: o o Storage Temperature ................................................................................... -65 C to +150 C 1 The input negative voltage and output voltage ratings may be exceeded if the input and output DC Supply Voltage VCCA ............................................................................ -0.5V to +4.6V current ratings are observed. DC Supply Voltage VCCB ............................................................................ -0.5V to +4.6V 2 This value is limited to 3.6V maximum. Enable Control Pin DC Input Voltage .................................................... -0.5V to+4.6V 3 Stresses greater than those listed under Voltage Range applied to any I/O pins in the high-impedance MAXIMUM RATINGS may cause permanent or Power-Off state VIOZ(A) ................................................................. -0.5V to+4.6V damage to the device. This is a stress rating only Voltage Range applied to any I/O pins in the high-impedance and functional operation of the device at these or or Power-Off state VIOZ(B) ................................................................. -0.5V to+4.6V any other condi-tions above those indicated in the Voltage Range applied to any I/O pins in the high or Low operational sec-tions of this specification is not state VIO(A)................................................................................. -0.5V to V +0.5V CCA implied. Exposure to absolute maximum rating Voltage Range applied to any I/O pins in the high or Low conditions for extended periods may affect state VIO(B) .................................................................................. -0.5V to V +0.5V CCB reliability. Input clamp Current (VI < 0) .............................................................................. -50mA Ourput clamp current (VO < 0) .......................................................................... -50mA Continuous output current ................................................................................. 20mA Continuous current through VCCA, VCCB or GND Pin .............................. 100mA 2013-07-0003 PT0484 07/12/13 2