STMUX1800LQTR

STMUX1800L 16- to 8-bit MUX/DEMUX for gigabit Ethernet LAN switch with LED switch and enhanced ESD protection Features ■ Low RON: 4.0 Ω typical ■ VCC operating range: 3.0 to 3.6 V ■ Enhanced ESD protection: > 8 kV (contact) and 15 kV (HBM) ■ Channel on capacitance: 9.5 pF typical ■ Switching time speed: 9 ns ■ Near to zero propagation delay: 250 ps ■ Very low crosstalk: -45 dB at 250 MHz ■ Bit-to-bit skew: 200 ps ■ > 600 MHz -3 dB typical bandwidth (or data frequency) ■ Three SPDT switches for LED support ■ Rail-to-rail switching on data I/O ports (0 V to 5 V) ■ Package: QFN56 ■ Pb-free QFN56 Description Applications ■ 10/100/1000 Mbit Ethernet switching ■ Audio/video switching The STMUX1800L is a 16- to 8-bit multiplexer/demultiplexer low RON bidirectional LAN switch designed for various standards, such as 10/100/1000 Ethernet. It is designed for very low crosstalk, low bit-to-bit skew and low I/O capacitance. The differential signal from the Gigabit Ethernet transceiver is multiplexed into one of two selected outputs while the unselected switch goes to Hi-Z status. The device integrates three SPDT (single pole dual throw) switches, for LED support. Table 1. Device summary Order code Package Packing STMUX1800LQTR QFN56 Tape and reel June 2009 Doc ID 14869 Rev 4 1/21 www.st.com 21 Contents STMUX1800L Contents 1 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.1 Recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 4 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 5 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 2/21 Doc ID 14869 Rev 4 STMUX1800L Pin description GND A B VDD N/C GND C D GND VDD E F GND G H GND SEL VDD LED1 Pin connection (top through view) LED2 Figure 1. GND VDD LED1_0 GND LED2_0 LED3 GND GND LED1_1 LED3_0 LED2_1 LED3_1 A0 B0 A1 B1 C0 GND D0 C1 D1 GND VDD E0 F0 E1 F1 GND G0 GND H0 VDD GND G1 VDD H1 1 Pin description CS000103 Table 2. Pin description Pin Symbol 2, 3, 7, 8, 11, 12, 14, 15 A, B, C, D, E, F, G, H Name and function 8-bit bus 48, 47, 43, 42, 37, 36, 32, 31 A0, B0, C0, D0, E0, F0, G0, H0 8-bit multiplexed to bus 0 46, 45, 41, 40, 35, 34, 30, 29 A1, B1, C1, D1, E1, F1, G1, H1 8-bit multiplexed to bus 1 5 N/C Not connected 17 SEL Bus and LED switch selection 19, 20, 54 LED1, LED2, LED3 22, 23, 25, 26, 51, 52 LED1_0, LED2_0, LED1_1, LED2_1, LED3_1, LED3_0 4, 10, 18, 27, 38, 50, 56 VDD Supply voltage 1, 6, 9, 13, 16, 21, 24, 28, 33, 39, 44, 49, 53, 55 GND Ground Doc ID 14869 Rev 4 LED switch input LED switch output 3/21 Pin description STMUX1800L Figure 2. Input equivalent circuit CS000104 Table 3. LAN switch function table SEL 4/21 Function L 8-bit bus to 8-bit multiplexed bus 0 H 8-bit bus to 8-bit multiplexed bus 1 Doc ID 14869 Rev 4 STMUX1800L Pin description Table 4. LED switch function table SEL Function L LED switch input connected to LED switch output X_0 H LED switch input connected to LED switch output X_1 Doc ID 14869 Rev 4 5/21 Maximum ratings 2 STMUX1800L Maximum ratings Stressing the device above the rating listed in the “absolute maximum ratings” table may cause permanent damage to the device. These are stress ratings only and operation of the device at these or any other conditions above those indicated in the operating sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Table 5. Absolute maximum ratings Symbol Parameter Value Unit VCC Supply voltage to ground -0.5 to 4.6 V VIO DC input output voltage -0.5 to 4.6 V VIC DC control input voltage -0.5 to 4.6 V 120 mA 0.5 W -65 to 150 °C 300 °C current(1) IO DC output PD Power dissipation Tstg Storage temperature TL Lead temperature (10 sec) 1. If VIO x IO does not exceed the maximum limit of PD. 2.1 Recommended operating conditions Table 6. Recommended operating conditions Value Symbol 6/21 Parameter Unit Min Typ Max VCC Supply voltage to ground 3 – 3.6 V VIC DC control input voltage (SEL) 0 – 5 V VIO DC input/output voltage 0 – VCC V TA Operating temperature -40 – 85 °C Doc ID 14869 Rev 4 STMUX1800L Electrical characteristics 3 Electrical characteristics Table 7. DC electrical characteristics for Gigabit Ethernet LAN8/16MUX/DEMUX (VCC = 3.3 V ±10%) Value Symbol Parameter Test condition -40 to 85 °C Unit Min Typ Max VIH Voltage input high (SEL) High level guaranteed 2 – – V VIL Voltage input low (SEL) Low level guaranteed -0.5 – 0.8 V VIK Clamp diode voltage (SEL) VCC = 3.6 V IIN = -18 mA – -0.8 -1.2 V IIH Input high current (SEL) VCC = 3.6 V VIN = VCC – – ±5 µA IIL Input low current (SEL) VCC = 3.6 V VIN = GND – – ±5 µA Leakage current through the switch common terminals (A to H) (LED1 to LED3) VCC = 3.6 V A to H = VCC LED1 to LED3 = VCC A0 to H0 = 0 V A1 to H1 = floating LEDx_0 = 0 V LEDx1 = floating SEL = VCC – – ±1 µA IOFF(SEL) SEL pin leakage current VCC = 0 V SEL = 0 to 3.6 V – – ±1 µA RON Switch ON resistance(2) VCC = 3.0 V VIN = 1.5 to VCC IIN = -40 mA – 4.0 6.5 Ω VCC = 3.0 V VIN at 1.5 and VCC IIN = -40 mA – 0.5 – Ω – 0.4 1 Ω IOFF(SW) RFLAT ΔRON (1) ON resistance flatness (2) (3) ON resistance match VCC = 3.0 V between channel V = 1.5 to VCC ΔRON = RONMAX-RONMIN IN IIN = -40 mA (2)(4) 1. Refer to Figure 4: Test circuit for leakage current (IOFF) on page 11 2. Measured by voltage drop between channels at indicated current through the switch. ON resistance is determined by the lower of the voltages. 3. Flatness is defined as the difference between the RONMAX and RONMIN of ON resistance over the specified range. 4. ΔRON measured at same VCC, temperature and voltage level. Doc ID 14869 Rev 4 7/21 Electrical characteristics Table 8. STMUX1800L DC electrical characteristics for 10/100 Ethernet LAN8/16MUX/DEMUX (VCC = 3.3 V ±10) Value Symbol Parameter Test condition -40 to 85 °C Unit Min Typ Max VIH Voltage input high (SEL) High level guaranteed 2 – – V VIL Voltage input low (SEL) Low level guaranteed -0.5 – 0.8 V VIK Clamp diode voltage (SEL) VCC = 3.6 V IIN = -18 mA – -0.7 -1.2 V IIH Input high current (SEL) VCC = 3.6 V VIN = VCC – – ±5 µA IIL Input low current (SEL) VCC = 3.6 V VIN = GND – – ±5 µA – – ±1 µA VCC = 0 V SEL = 0 to 3.6 V – – ±1 µA VCC = 3.0 V VIN = 1.5 to VCC IIN = -10 to -30 mA – 4.0 6.5 Ω (2) (3) VCC = 3.0 V VIN at 1.5 and VCC IIN = -10 to -30 mA – 0.5 – Ω ON resistance match between channel ΔRON = RONMAXRONMIN(2)(4) VCC = 3.0 V VIN = 1.5 to VCC IIN = -10 to -30 mA – 0.4 1 Ω VCC = 3.6 V A to H = VCC Leakage current LED1 to LED3 = VCC through the switch A0 to H0 = 0 V IOFF(SW)(1) common terminals (A to A1 to H1 = floating H) LEDx_0 = 0 V (LED1 to LED3) LEDx1 = floating SEL = VCC IOFF(SEL) RON RFLAT ΔRON SEL pin leakage current Switch ON resistance(2) ON resistance flatness 1. Refer to Figure 4: Test circuit for leakage current (IOFF) on page 11 2. Measured by voltage drop between channels at indicated current through the switch. ON resistance is determinate by the lower of the two voltages. 3. Flatness is defined as the difference between the RONMAX and RONMIN of ON resistance over the specified range. 4. ΔRON measured at same VCC, temperature and voltage level. 8/21 Doc ID 14869 Rev 4 STMUX1800L Electrical characteristics Table 9. Capacitance (TA = 25 °C, f = 1 MHz) Value Symbol Parameter Test condition Unit Min Typ Max CIN SEL pin input capacitance(1) DC = 0.25 V AC = 0.5 VPP f = 1 MHz – 2 3 pF COFF Switch off capacitance(2) DC = 0.25 V AC = 0.5 VPP f = 1 MHz – 4 5 pF CON Switch on capacitance(3) DC = 0.25 V AC = 0.5 VPP f = 1 MHz – 9.5 11 pF 1. Refer to Figure 5 on page 12 2. Refer to Figure 6 on page 12 3. Refer to Figure 7 on page 13 Table 10. Power supply characteristics Value Symbol ICC Table 11. Parameter Quiescent power supply Test condition VCC = 3.6 V, VIN = VCC or GND -40 to 85 °C Unit Min Typ Max – 150 500 µA Dynamic electrical characteristics (VCC = 3.3 V ±10%) Value Symbol Parameter Test condition -40 to 85 °C Unit Min Typ Max Xtalk Crosstalk(1) RL= 100 Ω f = 250 MHz – -45 – dB OIRR Off isolation(2) RL= 100 Ω f = 250 MHz – -37 – dB BW -3 dB bandwidth(3) RL= 100 Ω 0 < VIN ≤3.6 V – 600 – MHz 1. Refer to Figure 9 on page 14 2. Refer to Figure 10 on page 15 3. Refer to Figure 8 on page 13 Doc ID 14869 Rev 4 9/21 Electrical characteristics Table 12. STMUX1800L Switching characteristics (TA = 25 °C, VCC = 3.3 V ±10%) Value Symbol tPD Parameter Test condition Propagation delay VCC = 3 to 3.6 V Unit Min Typ Max – 0.25 – ns tPZH, tPZL Line enable time, SE VCC = 3 to 3.6 V to x to x0 or x to x1 0.5 6.5 15 ns tPHZ, tPLZ Line disable time, SE VCC = 3 to 3.6 V to x to x0 or x to x1 0.5 6.5 8.5 ns tSK(O) Output skew between center port to any other port VCC = 3 to 3.6 V – 0.1 0.2 ns tSK(P) Skew between opposite transition of VCC = 3 to 3.6 V the same output (tPHL, tPLH) – 0.1 0.2 ns Table 13. ESD performance Value Symbol Test condition Unit Min Typ Max Contact discharge(1) IEC61000-4-2 – ±8 – kV Human body model (MIL-STD-883) – ±15 – kV ESD 1. Refer to Figure 3: Diagram for suggested VDD decoupling on page 11. 10/21 Doc ID 14869 Rev 4 STMUX1800L Electrical characteristics GND VDD GND 1 56 55 VDD 53 GND GND VDD Diagram for suggested VDD decoupling GND Figure 3. 50 49 44 4 6 39 GND VDD GND C=2uF or 4.7uF 9 38 DUT 10 13 33 GND VDD GND 16 18 24 27 28 VDD GND 21 GND VDD GND GND GND Note: 100nF Capacitors must be used as local bypass capacitors between the adjacent VDD and GND pairs (total 7) 1. Applicable for system level ESD test Figure 4. Test circuit for leakage current (IOFF) 3.6 V VDD IOFF(SW) A0 A FLOAT A1 3.6 V 3.6 V SEL GND Doc ID 14869 Rev 4 11/21 Electrical characteristics Figure 5. STMUX1800L Test circuit for SEL pin input capacitance (CIN) 3.3 V VDD LCR meter DC = 0.25 V AC = 0.5 Vpp f = 1 MHz SEL DUT GND Figure 6. Test circuit for switch off capacitance (COFF) 3.3 V L or H H for channel 0 and L for channel 1 SEL LCR meter DC = 0.25 V AC = 0.5 Vpp f = 1 MHz VDD A0 A DUT A1 GND 12/21 Doc ID 14869 Rev 4 STMUX1800L Figure 7. Electrical characteristics Test circuit for switch on capacitance (CON) 3.3 V L or H L for channel 0 and H for channel 1 SEL LCR meter DC = 0.25 V AC = 0.5 Vpp f = 1 MHz VDD A0 A DUT A1 GND Figure 8. Test circuit for bandwidth measurement (BW) A A0 Frequency response is measured at the output of the ON channel. For example, when VSEL = 0 and A is the input, the output is measured at A0. All unused analog I/O ports are left open. HP8753ES setup: Average = 4 RBW = 3 kHz VBIAS = 0.35 V ST = 2 s P1 = 0 dBm Doc ID 14869 Rev 4 13/21 Electrical characteristics Figure 9. STMUX1800L Test circuit for crosstalk measurement (xtalk) A0 A B0 B A1 DUT B1 C C0 D D0 C1 D1 Crosstalk is measured at the output of the non-adjacent ON channel. For example, when VSEL = 0, and B is the input, the output is measured at D. All unused analog input ports are connected to GND and output ports are left open. HP8753ES setup: Average = 4 RBW = 3 kHz VBIAS = 0.35 V ST = 2 s P1 = 0 dBm 14/21 Doc ID 14869 Rev 4 STMUX1800L Electrical characteristics Figure 10. Test circuit for off isolation measurement (OIRR) A B A0 B0 A1 B1 Off isolation is measured at the output of the OFF channel. For example, when VSEL=0, and B is the input, the output is measured at B1. All unused analog input ports are connected to GND and output ports are left open. HP8753ES setup: Average = 4 RBW = 3 kHz VBIAS = 0.35 V ST = 2 s P1 = 0 dBm Doc ID 14869 Rev 4 15/21 Package mechanical data 4 STMUX1800L Package mechanical data In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK® packages, depending on their level of environmental compliance. ECOPACK® specifications, grade definitions and product status are available at: www.st.com. ECOPACK® is an ST trademark. Figure 11. Package outline for QFN56 (11 x 5 mm) pitch 0.5 mm 7576329-A 16/21 Doc ID 14869 Rev 4 STMUX1800L Package mechanical data Figure 12. Mechanical data for QFN56 (11 x 5 mm) pitch 0.5 mm Millimeters Symbol Min Typ Max A 0.70 0.75 0.80 A1 – – 0.05 0.20 – A3 b 0.20 0.25 0.30 D 10.90 11.00 11.10 D2 8.30 8.40 8.50 D3 – 9.50 – E 4.90 5.00 5.10 E2 2.30 2.40 2.50 E3 – 3.50 – e – 0.50 – L 0.30 0.40 0.50 Figure 13. Footprint recommendation for QFN56 (11 x 5 mm) pitch 0.5 mm Doc ID 14869 Rev 4 17/21 Package mechanical data STMUX1800L Figure 14. Carrier tape information for QFN56 (11 x 5 mm) pitch 0.5 mm 7875978_K 18/21 Doc ID 14869 Rev 4 STMUX1800L Package mechanical data Figure 15. Reel information for QFN56 (11 x 5 mm) pitch 0.5 mm Doc ID 14869 Rev 4 19/21 Revision history 5 STMUX1800L Revision history Table 14. 20/21 Document revision history Date Revision Changes 26-Feb-2008 1 Initial release. 24-Sep-2008 2 Modified: datasheet title, channel on capacitance value from 7.5 pF to 9.5 pF typical, Figure 1, Table 2, Section 3: Electrical characteristics. Added: fields of applications, Table 6 and QFN56 footprint recommendations in Figure 13 on page 17. 30-Mar-2009 3 Updated: Features section, Table 5 on page 6, Table 11 on page 9 and Table 13 on page 10 and Chapter 4: Package mechanical data. 22-Jun-2009 4 Document promoted from Preliminary data to datasheet. Doc ID 14869 Rev 4 STMUX1800L Please Read Carefully: Information in this document is provided solely in connection with ST products. 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