74AVCH1T45FZ4-7

74AVCH1T45 SINGLE BIT DUAL POWER SUPPLY TRANSLATING TRANSCEIVER WITH 3 STATE OUTPUTS Description Pin Assignments NEW PRODUCT The 74AVCH1T45 is a single bit, dual supply transceiver with 3-state outputs suitable for transmitting a single logic bit across different voltage domains. The 74AVCH1T45 is a variant of the 74AVC1T45 that includes a bus hold feature at each input. The A input/output pin is designed to track VCCA while the B input/output tracks VCCB. This (Top View ) Vcc(A) 1 GND 2 arrangement allows for universal low-voltage translation between any voltages from 1.2V to 3.6V. The Direction pin (DIR) controls the direction of the transceiver and in a logic voltage related to VCCA. (Top View ) Vcc(A) 1 GND 2 A (Bottom View) A 3 GND 2 Vcc(A) 1 4B 5 DIR 3 6 Vcc(B) 5 DIR 4 B X1-DFN1010-6 X2-DFN0910-6 X2-DFN1410-6 6 Vcc(B) X2-DFN1409-6 Chip Scale Alternative The bus hold feature maintains the previous logic level therefore a valid logic level is always present eliminating the need for additional resistors for an unused or disconnected inputs. Applications Features   Wide Supply Voltage Range:  VCC(A): from 1.2V to 3.6V  VCC(B): from 1.2V to 3.6V     ± 12mA Output Drive at 3.3V High Noise Immunity - (100mV hysteresis typical) IOFF Supports Partial-Power-Down Mode Operation IOFF controlled by either VCC being at 0V   Inputs accept up to 4.6V ESD Protection Exceeds JESD 22  200-V Machine Model (A115)  2000-V Human Body Model (A114)  1000 V Charged Device Model ( C101) Latch-Up Exceeds 100mA per JESD 78, Class I X2-DFN1409-6 package designed as a direct replacement for chip scale packaging. Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) Halogen and Antimony Free. “Green” Device (Note 3) Notes: 4 B SOT26 SOT363 The 3-state feature occurs when either of the power supply voltages are zero. This is also an Ioff feature and allows for the output to remain in a high impedance state with both power supplies at 0V preventing damaging backflow currents and providing power down electrical isolation up to 3.6 V as not to interfere with any logic activity on pin A or B.   5 DIR A 3 When a high logic level is applied to DIR the A pin becomes an input and the B pin becomes the output. Conversely the roles of A and B are reversed when DIR is asserted low.   6 Vcc(B)   Voltage Level Translation: Well suited to join logic types operating at different voltages Power Down Signal Isolation: If either voltage domain is turned off the signal is isolated and there is no loading on signal lines Wide array of products such as:  Cell Phones, Tablets, E-Readers  PCs, Notebooks, Netbooks, Ultrabooks  Networking, Routers, Gateways  Computer Peripherals, Hard Drives, CD/DVD ROMs  TVs, DVDs, DVRs, Set Top Boxes  Personal Navigation / GPS  MP3 players, Cameras, Video Recorders 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. 2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and Lead-free. 3. Halogen- and Antimony-free "Green” products are defined as those which contain