UM3308UK

UM3308 8-Bit Bidirectional Voltage-Level Translator with Auto Direction Sensing and ±15kV ESD Protection UM3308/UM3308H CSP20 2.4×1.9 UM3308UK TSSOP20 UM3308QA QFN20 4.5×3.5 UM3308QB QFN20 3.0×3.0 General Description UM3308/UM3308H/UM3308UK/UM3308QA/UM3308QB is an 8-channel bidirectional voltage level translator with auto direction sensing and ±15kV ESD protection. This 8-channel non-inverting translator uses two separate configurable power-supply rails. The A port is designed to track VCCA. VCCA accepts any supply voltage from 1.2V to 3.6V. The B port is designed to track VCCB. VCCB accepts any supply voltage from 1.65V to 5.5V. This allows for universal low-voltage bidirectional translation between any of the 1.2V, 1.5V, 1.8V, 2.5V, 3.3V, and 5V voltage nodes. Both I/O ports are auto-sensing; thus, no direction pin is required, making it ideal for data transfer between low-voltage ASICs/PLDs and higher voltage systems. The UM3308/UM3308H/UM3308UK/UM3308QA/UM3308QB operates at a guaranteed data rate of 20Mbps over the entire specified operating voltage range. Within specific voltage domains, higher data rates are up to 100Mbps. When the output-enable (OE) input is low, all outputs are placed in the high-impedance state. The UM3308/UM3308H/UM3308UK/UM3308QA/UM3308QB is designed so that the OE input circuit is supplied by VCCA. To ensure the high-impedance state during power up or power down, OE should be tied to GND through a pull down resistor; the minimum value of the resistor is determined by the current-sourcing capability of the driver. The UM3308 and UM3308H are both available in CSP20 2.4×1.9 BGA package while the UM3308H specially features in wafer backside coating process, minimize chip breakage risk. The UM3308UK is available in TSSOP20 package, the UM3308QA is available in QFN20 4.5×3.5 package and the UM3308QB is available in QFN20 3.0×3.0 package. Applications Features ⚫ ⚫ ⚫ ⚫ ⚫ ⚫ ⚫ ⚫ ⚫ Low-Voltage ASIC Level Translation Cell-Phone Cradles Portable POS Systems Portable Communication Devices Low-Cost Serial Interfaces Cell-Phones GPS Telecommunications Equipment ⚫ ⚫ ⚫ ⚫ ⚫ 1.2V to 3.6V on A Port and 1.65V to 5.5V on B Port (VCCA≤VCCB) VCC Isolation Feature – If Either VCC Input is at GND, All Outputs are in the High-Impedance State OE Input Circuit Referenced to VCCA Low Power Consumption Latch-Up Performance Exceeds 100mA ±15kV ESD Protection on B Ports ________________________________________________________________________ http://www.union-ic.com Rev.15 Aug.2021 1/18 UM3308 Pin Configurations Top View (Bottom View) XX: Date Code UM3308/UM3308H CSP20 2.4×1.9 (Top View) A1 1 20 B1 VCCA 2 19 VCCB A2 3 18 B2 A3 4 17 B3 A4 5 16 B4 A5 6 15 B5 A6 7 14 B6 A7 8 13 B7 A8 9 12 OE 10 UM3308UK XX Pin #1 ID B8 11 GND XX: Week Code UM3308UK TSSOP20 (Top View) 2 3 4 5 6 7 8 9 VCCA A2 A3 A4 A5 A6 A7 A8 A1 B1 1 20 10 11 OE GND 19 VCCB 18 B2 17 B3 16 B4 15 B5 14 B6 13 B7 12 B8 UM 3308QA XX XX: Week Code UM3308QA QFN20 4.5×3.5 (Top View) VCCA A1 B1 VCCB B2 20 19 18 17 16 A2 1 15 B3 A3 2 14 B4 A4 3 13 B5 A5 4 12 B6 A6 5 11 B7 GND 6 7 A7 A8 8 9 10 UM 3308 XX XX: Week Code UM3308QB QFN20 3.0×3.0 OE GND B8 ________________________________________________________________________ http://www.union-ic.com Rev.15 Aug.2021 2/18 UM3308 Ball Mapping for UM3308/UM3308H 5 4 3 2 1 B8 B6 B4 B2 VCCB C GND B7 B5 B3 B1 D B OE A7 A5 A3 A1 A A8 A6 A4 A2 VCCA Transparent Top View Pin Description Pin Name A1 VCCA A2 A3 A4 A5 A6 A7 A8 OE GND B8 B7 B6 B5 B4 B3 B2 VCCB B1 Function Input/Output 1. Referenced to VCCA A-Port Supply Voltage. 1.1V≤VCCA≤3.6V and VCCA≤VCCB Input/Output 2. Referenced to VCCA Input/Output 3. Referenced to VCCA Input/Output 4. Referenced to VCCA Input/Output 5. Referenced to VCCA Input/Output 6. Referenced to VCCA Input/Output 7. Referenced to VCCA Input/Output 8. Referenced to VCCA 3-State Output Enable. Pull OE low to place all outputs in 3-state mode. Referenced to VCCA Ground Input/Output 8. Referenced to VCCB Input/Output 7. Referenced to VCCB Input/Output 6. Referenced to VCCB Input/Output 5. Referenced to VCCB Input/Output 4. Referenced to VCCB Input/Output 3. Referenced to VCCB Input/Output 2. Referenced to VCCB B-Port Supply Voltage. 1.65V≤VCCB≤5.5V Input/Output 1. Referenced to VCCB ________________________________________________________________________ http://www.union-ic.com Rev.15 Aug.2021 3/18 UM3308 Ordering Information Part Number UM3308 UM3308H Packaging Type Marking Code CSP20 2.4×1.9 YE08 UM3308UK TSSOP20 UM3308UK UM3308QA QFN20 4.5×3.5 UM3308QA UM3308QB QFN20 3.0×3.0 UM3308QB Shipping Qty 3000pcs/7Inch Tape & Reel 3000pcs/13Inch Tape & Reel 3000pcs/13Inch Tape & Reel 3000pcs/13Inch Tape & Reel ________________________________________________________________________ http://www.union-ic.com Rev.15 Aug.2021 4/18 UM3308 Absolute Maximum Ratings (Note 1) Over operating free-air temperature range (unless otherwise noted) Symbol Parameter Value Unit VCCA Supply Voltage Range -0.5 to +4.5 V VCCB Supply Voltage Range V A ports B ports -0.5 to +6.5 -0.5 to +4.5 -0.5 to +6.5 A ports -0.5 to +4.5 B ports -0.5 to +6.5 A ports -0.5 to (VCCA+0.5) B ports -0.5 to (VCCB+0.5) IIK Voltage Range Applied to Any Output in the High-Impedance or Power-Off State (Note 2) Voltage Range Applied to Any Output in the High or Low State (Note 2, 3) Input Clamp Current VI