UM3304

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Technical content

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 V CC 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  ±4kV ESD Protection on B ports

http://www.union-ic.com Rev.11 Sep.2013 2 / 1 5 UM3304/UM3304Q/UM3304QT P i n C o n f i g u r a t i o n s T o p V i e w (Top View) AB C D UM3304 CSP12 1.9×1.4 (Top View) XX: Week Code UM3304Q QFN14 3.5×3.5 (Top View) XX: Week Code UM3304QT QFN16 2.60×1.80

http://www.union-ic.com Rev.11 Sep.2013 3 / 1 5 UM3304/UM3304Q/UM3304QT Terminal Assignments for UM3304 Pin Description Pin Name Function UM3304 UM3304Q UM3304QT B2 1 16 VCCA A-Port supply voltage. 1.2V ≤VCCA≤3.6V and VCCA≤VCCB A3 2 1 A1 Input/Output 1. Referenced to V CCA B3 3 2 A2 Input/Output 2. Referenced to V CCA C3 4 3 A3 Input/Output 3. Referenced to V CCA D3 5 4 A4 Input/Output 4. Referenced to V CCA - 6 5 NC Not connected. (Except for UM3304) D2 7 6 GND Ground C2 8 8 OE 3-state output enable. Pull OE low to place all outputs in 3-state mode. Referenced to V CCA - 9 14 NC Not connected. (Except for UM3304) D1 10 9 B4 Input/Output 4. Referenced to V CCB C1 11 10 B3 Input/Output 3. Referenced to V CCB B1 12 11 B2 Input/Output 2. Referenced to V CCB A1 13 12 B1 Input/Output 1. Referenced to V CCB A2 14 13 VCCB B-Port supply voltage. 1.65V ≤VCCB≤5.5V - - 15 NC Not connected. (Only for UM3304QT) - - 7 GND Ground. (Only for UM3304QT)

Ordering Information

Part Number Packaging Type Marking Code Shipping Qty UM3304 CSP12 1.9×1.4 YAAB 3000pcs/7Inch Tape & Reel UM3304Q QFN14 3.5 ×3.5 UM3304Q 3000pcs/13Inch Tape & Reel UM3304QT QFN16 2.6×1.8 3304 3000pcs/13Inch Tape & Reel 3 2 1 D A4 GND B4 C A3 OE B3 B A2 V CCA B2 A A1 V CCB B1

http://www.union-ic.com Rev.11 Sep.2013 4 / 1 5 UM3304/UM3304Q/UM3304QT 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 -0.5 to +6.5 V VI Input Voltage Range A ports -0.5 to +4.5 V B ports -0.5 to +6.5 VO Voltage Range applied to any output in the high-impedance or power-off state A ports -0.5 to +4.5 V B ports -0.5 to +6.5 VO Voltage Range applied to any output in the high or low state (Note 2) A ports -0.5 to ( V CCA+0.5) V B ports -0.5 to ( V CCB+0.5) IIK Input Clamp Current VI＜0 -50 mA IOK Output Clamp Current VO＜0 -50 mA IO Continuous Output Current ±50 mA Continuous Current through V CCA, VCCB, or GND ±100 mA TOP Operating Temperature Range -40 to +85 °C TSTG Storage Temperature Range -65 to +150 °C Note1. Stresses beyond those listed under "a bsolute 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 under "recommended operating conditions" is not implied. Exposure to ab solute-maximum-rated conditions for extended periods may affect device reliability. Note2. The value of VCCA and VCCB are provided in the recommended operating conditions table. Recommended Operating Conditions (Note 1, 2) Symbol Parameter V CCA V CCB M i n M a x U n i t VCCA Supply Voltage 1 . 2 3 . 6 V VCCB 1.65 5.5 V VO Voltage range applied to any output in the high-impedance or power-off state A-Port 1.2V to 3.6V 1.65V to 5.5V 0 3 . 6 V B - P o r t 0 5 . 5 Δt/Δv Input Transition Rise or Fall Time A-Port Inputs 1.2V to 3.6V 1.65V to 5.5V 40 ns/V B-Port Inputs 1.2V to 3.6V 1.65V to 3.6V 40 4.5V to 5.5V 30 Note1. The A and B sides of an unused data I/O pair must be held in the same state, i.e., both at VCCI or both at GND. Note2. VCCA must be less than or equal to VCCB and must not exceed 3.6 V. Note3. VCCI is the supply voltage associated with the input port.

http://www.union-ic.com Rev.11 Sep.2013 5 / 1 5 UM3304/UM3304Q/UM3304QT Electrical Characteristics (Note 1, 2) Over recommended operating free-air temperature range (unless otherwise noted) Parameter Test Conditions V CCA V CCB TA=25℃ -40 ℃ to 85℃ UnitT y p M a x M i n M a x VOHB I OH=-20μA 1.65V to 5.5V V CCB-0.4 V VOLB I OL=20μA 1.65V to 5.5V 0.4 V II OE V I=VCCI or GND 1.2V to 3.6V 1.65V to 5.5V ±1 ±2 μA Ioff A Port V I or VO=0 to 3.6V 0V 0V to 5.5V ±1 ±2 μAB Port V I or VO=0 to 5.5V 0V to 3.6V 0V ±1 ±2 IOZ A or B Port OE=GND 1.2V to 3.6V 1.65V to 5.5V ±1 ±2 μA ICCA VI=VCCI or GND IO=0 1.2V 1.65V to 5.5V 0.06 μA1.4V to 3.6V 1.65V to 5.5V 5 3.6V 0V 2 0V 5.5V -2 ICCB VI=VCCI or GND IO=0 1.2V 1.65V to 5.5V 3.4 μA1.4V to 3.6V 1.65V to 5.5V 5 3.6V 0V -2 0V 5.5V 2 ICCA +ICCB VI=VCCI or GND IO=0 ICCZA VI=VCCI or GND IO=0, OE=GND ICCZB VI=VCCI or GND IO=0, OE=GND Ci OE 1.2V to 3.6V 1.65V to 5.5V 3 4 pF CiO A Port 1.2V to 3.6V 1.65V to 5.5V 5 6 pF B Port 11 14 Note1. VCCI is the supply voltage associated with the input port. Note2. VCCO is the supply voltage associated with the output port.

http://www.union-ic.com Rev.11 Sep.2013 6 / 1 5 UM3304/UM3304Q/UM3304QT Switching Characteristics TA=+25°C, VCCA= 1.2V Parameter From (Input) To (Output) VCCB=1.8V VCCB=2.5V VCCB=3.3V VCCB=5V Unit Typ Typ Typ Typ tpd A B 7 6 5.3 5.5 ns B A 7.5 6.5 6 6 ten OE A 1 1 1 1 μs B 1 1 1 1 tdis OE A 18 16 14 14 ns B 19 17 15 15 trA, tfA A port rise and fall time 5 5 5 5 ns trB, tfB B port rise and fall time 2.5 1.5 1.2 1 ns tSK(O) Channel-to-channel 0.5 0.5 0.5 1.5 ns Max data rate 20 20 20 20 Mbps Switching Characteristics Over recommended operating free-air temperature range, V CCA=1.5V±0.1V (unless otherwise noted) Parameter From (Input) To (Output) VCCB=1.8V ±0.15V VCCB=2.5V ±0.2V VCCB=3.3V ±0.3V VCCB=5V ±0.5V Unit Min Max Min Max Min Max Min Max ten OE A 1 1 1 1 μs B 1 1 1 1 tdis OE A 6 30 5.5 28 5.5 25 5.5 23 ns B 5.5 30 5 25 5 20 5 20 trA, tfA A port rise and fall trB, tfB B port rise and fall tSK(O) Channel-to-channel 0.5 0.5 0.5 0.5 ns Max data rate 40 40 40 40 Mbps

http://www.union-ic.com Rev.11 Sep.2013 7 / 1 5 UM3304/UM3304Q/UM3304QT Switching Characteristics Over recommended operating free-air temperature range, V CCA=1.8V±0.15V (unless otherwise noted) Parameter From (Input) To (Output) VCCB=1.8V ±0.15V VCCB=2.5V ±0.2V VCCB=3.3V ±0.3V VCCB=5V ±0.5V Unit Min Max Min Max Min Max Min Max ten OE A 1 1 1 1 μs B 1 1 1 1 trA, tfA A port rise and fall trB, tfB B port rise and fall tSK(O) Channel-to-channel 0.5 0.5 0.5 0.5 ns Max data rate 60 60 60 60 Mbps Switching Characteristics Over recommended operating free-air temperature range, VCCA=2.5V±0.2V (unless otherwise noted) Parameter From (Input) To (Output) VCCB=2.5V ±0.2V VCCB=3.3V ±0.3V VCCB=5V ±0.5V Unit Min Max Min Max Min Max ten OE A 1 1 1 μs B 1 1 1 trA, tfA A port rise and fall time 0.8 3 0.8 3 0.8 3 ns tSK(O) Channel-to-channel 0.5 0.5 0.5 ns Max data rate 100 100 100 Mbps

http://www.union-ic.com Rev.11 Sep.2013 8 / 1 5 UM3304/UM3304Q/UM3304QT Switching Characteristics Over recommended operating free-air temperature range, VCCA=3.3V±0.3V (unless otherwise noted) Parameter From (Input) To (Output) VCCB=3.3V ±0.3V VCCB=5V ±0.5V Unit M i n M a x M i n M a x tpd A B 0.9 5 0.8 4 ns B A 1 5.1 0.9 4 ten OE A 1 1 μs B 1 1 tdis OE A 5 1 5 4 1 3 ns B 4 1 6 3 . 4 1 3 . 8 trA, tfA A port rise and fall time 0.7 2.5 0.7 2.5 ns trB, tfB B port rise and fall time 0.5 2.1 0.4 2.8 ns tSK(O) C h a n n e l - t o - c h a n n e l 0 . 5 0 . 5 n s Max data rate 100 100 Mbps Operating Characteristics TA=+25°C Pamameter Test Conditions VCCB Unit to 5V VCCA Typ Typ Typ Typ Typ Typ Typ CpdA A-port input B-port output CL=0, f=10MHz, tr=tf=1ns, OE= VCCA 9 10 10 10 10 10 10 pF B-port input A-port output 12 11 11 11 11 11 11 CpdB A-port input B-port output 35 28 28 29 3.0 30 30 B-port input A-port output 27 19 19 19 20 21 23 CpdA A-port input B-port output CL=0, f=10MHz, tr=tf=1ns, OE= GND pF B-port input CpdB A-port input B-port input

http://www.union-ic.com Rev.11 Sep.2013 9 / 1 5 UM3304/UM3304Q/UM3304QT Applications Information UM3304/UM3304Q/UM3304QT ESD protect ed level translator provides level shifting necessary to allow data transfer in a multi-voltage system. Externally applied voltages, V CCA and V CCB set the logic levels on either side of device. A low voltage signal present on V CCA side of the device appears as a high voltage logic signal on the VCCB side of the device, and vice-versa. Block Diagram The UM3304/UM3304Q/UM3304QT (block diagram see Figure 1) does not require a direction-control signal to control the direction of data flow from A to B or from B to A. In a dc state, the output drivers of the UM3304/UM3304Q/UM3304QT can maintain a high or low, but are designed to be weak, so that they can be overdriven by an external driver when data on the bus starts flowing the opposite direction. The output one shot detects rising or falling edges on the A or B ports. During a rising edge, the one shot turns on the PMOS transistors (T1, T3) for a short duration, which speeds up the low-to-high transition. Similarly, during a falling edge, the one shot turns on the NMOS transistors (T2, T4) for a short duration, which speeds up the high-to-low transition. Figure 1 Block Diagram of UM3304/UM3304Q/UM3304QT I/O Cell

http://www.union-ic.com Rev.11 Sep.2013 1 0 / 1 5 UM3304/UM3304Q/UM3304QT Input Driver Requirements Typical IIN vs V IN characteristics of the UM3304/UM3304Q/UM3304QT are shown in Figure 2. For proper operation, the device driving th e data I/Os of the UM3304/UM3304Q/UM3304QT must have drive strength of at least ±2 mA. A: VT is the input threshold voltage of the UM3304/UM3304Q/UM3304QT (typical VCCI/2) B: VD is the supply voltage of the external driver. Figure 2 Typical IIN vs VIN Curve Power Up During operation, ensure that V CCA≤VCCB at all times. During power-up sequencing, V CCA≥ VCCB does not damage the device, so any power supply can be ramped up first. The UM3304/UM3304Q/UM3304QT has circuitry that disables all output ports when either V CC is switched off (VCCA/B = 0 V). Enable and Disable The UM3304/UM3304Q/UM3304QT has an OE input that is used to disable the device by setting OE = low, which places all I/Os in the high-impe dance (Hi-Z) state. The disable time (tdis) indicates the delay between when OE goes low a nd when the outputs acutally get disabled (Hi-Z). The enable time (ten) indicates the amount of tim e the user must allow for the one-shot circuitry to become operational after OE is taken high. Pullup or Pulldown Resistors on I/O Lines The UM3304/UM3304Q/UM3304QT is designed to drive capacitive loads of up to 50pF. The output drivers of the UM3304/UM3304Q/UM3304QT have low dc drive strength. External pullup or pulldown resistors need higher than 50 kΩ. For the same reason, the UM3304/UM3304Q/UM3304Q T should not be used in open-drain system, such as I 2C or 1-wire system.

http://www.union-ic.com Rev.11 Sep.2013 1 2 / 1 5 UM3304/UM3304Q/UM3304QT

Package Information

UM3304 CSP12 1.90×1.40 Outline Drawing D be A DIMENSIONS Symbol Millimeters Inch Min Max Min Max A 0.65 0.026 A1 0.21 0.24 0.008 0.010 A2 0.40 0.42 0.016 0.017 D 1.82 1.90 0.073 0.076 E 1.32 1.40 0.053 0.056 D1 1.50TYP 0.060TYP E1 1.00 TYP 0.040 TYP e 0.50 TYP 0.020 TYP b 0.27 0.32 0.011 0.013 C 0.50 TYP 0.020 TYP L 0.15 0.17 0.006 0.007 Land Pattern NOTES: 1. Bump is Lead Free Sn/Ag/Cu. 2. Non-solder mask defined copper landing pad. 3. Laser Mark on silicon die back; back-lapped Tape and Reel Orientation

http://www.union-ic.com Rev.11 Sep.2013 1 3 / 1 5 UM3304/UM3304Q/UM3304QT UM3304Q QFN14 3.50×3.50 Outline Drawing DIMENSIONS Symbol Millimeters Inch Min Max Min Max A 0.80 1.00 0.032 0.040 A1 0.00 0.05 0.000 0.002 D 3.35 3.65 0.134 0.146 E 3.35 3.65 0.134 0.146 D1 1.90 2.15 0.076 0.086 E1 1.90 2.15 0.076 0.086 b 0.18 0.30 0.007 0.012 e 0.50BSC 0.020BSC e1 1.50BSC 0.060BSC L 0.30 0.50 0.012 0.020 Land Pattern NOTES: 1. Compound dimension: 3.50×3.50; 2. Unit: mm; 3.General tolerance ±0.05mm unless otherwise specified; 4. The layout is just for reference. Tape and Reel Orientation

http://www.union-ic.com Rev.11 Sep.2013 1 4 / 1 5 UM3304/UM3304Q/UM3304QT UM3304QT QFN16 2.60×1.80 Outline Drawing D E L 0.3 b 0.7 0.5 Top View Bottom View A e Side View DIMENSIONS Symbol Millimeters Inches Min Max Min Max A 0.5 0.6 0.02 0.024 A1 0 0.05 0 0.002 A3 0.15REF 0.006REF D 1.75 1.85 0.069 0.073 E 2.55 2.65 0.1 0.104 L 0.3 0.5 0.012 0.02 b 0.15 0.25 0.006 0.01 e 0.400TYP 0.016REF Land Pattern NOTES: 1. Compound dimension: 2.60×1.80 ; 2. Unit: mm; 3. General tolerance ±0.05mm unless otherwise specified; 4. The layout is just for reference. Tape and Reel Orientation

http://www.union-ic.com Rev.11 Sep.2013 1 5 / 1 5 UM3304/UM3304Q/UM3304QT IMPORTANT NOTICE The information in this document has been ca refully reviewed and is believed to be accurate. Nonetheless, this document is subjec t to change without notice. Union assumes no responsibility for any inaccuracies that may be contained in this document, and makes no commitment to update or to keep current the contained information, or to notify a person or organization of any update. Union rese rves the right to make changes, at any time, in order to improve reliability, function or design and to attempt to supply the best product possible. Union Semiconductor, Inc Add: 2F, No. 3, Lane647 Songtao Road, Shanghai 201203 Tel: 021-51093966 Fax: 021-51026018 Website: www.union-ic.com