ST16C32245TBR

ST16C32245 14-bit dual supply bus transceiver level translator A side series resistor, 2-bit I2C lines Features ■ High speed: tPD = 4.4 ns (max) at TA = 85 °C VCCA = 3.0 V and VCCB = 2.3 V ■ Low power dissipation: ICCA = ICCB = 20 μA(max) at TA = 85 °C ■ Symmetrical output impedance: |IOHA| = IOLA = 8 mA min (VCCA = 3.0 V; VCCB = 1.65 V or 2.3 V) |IOHB| = IOLB = 6 mA min (VCCB = 1.65 V VCCA = 3.0 V; ) ■ Balanced propagation delays: tPLH ≅ tPHL ■ Power down protection on inputs and outputs ■ 26 Ω series resistor on A side outputs ■ Operating voltage range: VCCA (opr) = 2.3 V to 3.6 V VCCB (opr) = 1.65 V to 2.7 V μTFBGA42 Description ■ Fast I2C lines 1.8 V/2.8 V level translator: 400 KHz guaranteed data rate at CL = 15 pF ■ Bus hold provided on data input both side ■ Latch-up performance exceeds 500mA (JESD 17) ■ ESD performance: HBM > 2000 V (MIL STD 883 method 3015); MM > 200 V Table 1. The ST16C32245 is a dual supply low voltage CMOS 14-bit bus transceiver fabricated with submicron silicon gate and five-layer metal wiring C2MOS technology. Designed for use as an interface between a 3.3 V bus and a 2.5 V or 1.8 V bus in a mixed 3.3 V/1.8 V,3.3 V/2.5 V and 2.5 V/1.8 V supply systems, it achieves high speed operation while maintaining the CMOS low power dissipation and it includes 2-bit I2C level translation. This IC is intended for two-way asynchronous communication between data buses and the direction of data transmission is determined by nDIR inputs. The enable inputs nG can be used to disable the device so that the buses are effectively isolated. The A-port interfaces with the 3 V bus, the B-port with the 2.5 V and 1.8 V bus. All inputs are equipped with protection circuits against static discharge, giving them 2 KV ESD immunity and transient excess voltage. All floating bus terminals during high Z state do not need external pull-up or pull-down resistor. Device summary Order code Package Packaging ST16C32245TBR μTFBGA42 Tape and reel March 2009 Rev 3 1/23 www.st.com 23 Contents ST16C32245 Contents 1 General description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Pin settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 3 2.1 Pin connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2.2 I2C bus function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Maximum rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 3.1 Recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 4 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 5 Test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 6 Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 7 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 8 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 2/23 ST16C32245 1 General description General description Figure 1. Logic diagram 3/23 General description Figure 2. 4/23 ST16C32245 Input and output equivalent circuit ST16C32245 Pin settings 2 Pin settings 2.1 Pin connection Figure 3. Pin connection (top through view) μTFBGA42 Table 2. Pin description Pin number Symbol Name and function B3 1DIR Directional controls F3 2DIR Directional controls A4, A5, A6, B5, B6, C5, C6, D5 A1, A2, A3, A4, A5, A6, A7, A8 Data Inputs/outputs D6, E5, E6, F5, F6, G6 A9, A10, A11, A12, A13, A14 Data Inputs/outputs A3, A2, A1, B2, B1, C2, C1, D2 B1, B2, B3, B4, B5, B6, B7, B8 Data Inputs/outputs D1, E2, E1, F2, F1, G1 B9, B10, B11, B12, B13, B14 Data Inputs/outputs F4 2G Output enable inputs B4 1G Output enable inputs C3, C4, E3, E4 GND Ground (0V) - NC No connected D4 VCCA Positive supply voltage D3 VCCB Positive supply voltage G5, G4 I/OVA1, I/OVA2 I2C Line (VCCA referred) G2, G3 I/OVB1, I/OVB2 I2C Line (VCCB referred) 5/23 Pin settings ST16C32245 Table 3. Truth table Inputs Function Output G DIR A bus B bus L L Output Input A=B L H Input Output B=A H X Z Z Z Note: X = don’t care; Z = high Impedance 2.2 I2C bus function I2C Bus function table Table 4. I/O input Note: 6/23 2G 1G, 1DIR, 2DIR H Function I/OVA I/OVB X Z Z I2C disabled L X L L I2C comm. L X VCCA VCCB I2C comm. L X Open VCCB I2C comm. L X VCCA Open I2C comm. Open: If I/OVA is not driven then the I/OVB goes in high level VCCB by embedded 10 kΩ pullup resistor. If I/OVB is not driven then the I/OVA will go in high level VCCB by embedded 10 kΩ pull-up resistor. ST16C32245 3 Maximum rating Maximum rating 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 VCCA Supply voltage -0.5 to +4.6 V VCCB Supply voltage -0.5 to +4.6 V DC input voltage -0.5 to +4.6 V VI/OA DC I/O voltage (Output disabled) -0.5 to +4.6 V VI/OB DC I/O voltage (Output disabled) -0.5 to +4.6 V VI/OA DC I/O voltage -0.5 to VCCA + 0.5 V VI/OB DC I/O voltage -0.5 to VCCB + 0.5 V VI/OVA Level input voltage (I/OVA) -0.5 to VCCA + 0.5 V VI/OVB Level input voltage (I/OVB) -0.5 to VCCB + 0.5 V VI IIK DC input diode current −20 mA IOK DC output diode current −50 mA IOA DC output current ± 50 mA IOB DC output current ± 50 mA ICCA DC VCC or ground current ± 100 mA ICCB DC VCC or ground current ± 100 mA 400 mW -65 to +150 °C 260 °C Pd Power dissipation Tstg Storage temperature TL Lead temperature (10 sec) 7/23 Maximum rating 3.1 ST16C32245 Recommended operating conditions Table 6. Recommended operating conditions Symbol Value Unit VCCA Supply voltage 2.3 to 3.6 V VCCB Supply voltage 1.65 to 2.7 V Input voltage (Dir, G) 0 to VCCB V VI/OA I/O voltage 0 to VCCA V VI/OB I/O voltage 0 to VCCB V VI/OVA Level input voltage (I\OVA) 0 to VCCA V VI/OVB Level input voltage (I\OVB) 0 to VCCB V Top Operating temperature -40 to +85 °C dt/dv Input rise and fall time 0 to 10 ns/V VI 8/23 Parameter ST16C32245 Electrical characteristics 4 Electrical characteristics Table 7. DC specification for VCCA Test condition Symbol VIHA VILA VOHA VOLA IIA Parameter High level input voltage (An)(1) Low level input voltage (An)(1) High level output voltage Low level output voltage Input leakage current IIA(HOLD) Input hold current IOZA High impedance output leakage current IOFF Power off leakage current Value TA = 25 °C -40 to 85°C (V) Min Min 1.8 2.5 1.6 1.6 1.8 3.3 2.0 2.0 2.5 3.3 2.0 2.0 1.8 2.5 0.7 0.7 1.8 3.3 0.8 0.8 2.5 3.3 0.8 0.8 2.3 3.0 IO = -100 μA 2.8 2.8 2.3 3.0 IO = -8 mA 2.4 2.4 1.65 3.0 IO = -8 mA 2.4 2.4 1.65 2.3 IO = -6 mA 1.8 1.8 2.3 3.0 IO = 100 μA 0.2 0.2 2.3 3.0 IO = 8 mA 0.55 0.55 1.65 3.0 IO = 8 mA 0.55 0.55 1.65 2.3 IO = 6 mA 0.40 0.40 2.7 3.6 VI = VCC or GND ± 0.5 ±5 1.65 2.3 VI = 0.7 V 45 45 1.65 2.3 VI = 1.6 V -45 -45 1.65 3.0 VI = 0.8 V 75 75 1.65 3.0 VI = 2.0 V -75 -75 2.3 3.0 VI = 0.8 V 75 75 2.3 3.0 VI = 2.0 V -75 -75 2.7 3.6 VI = 0 to 3.6 V 3.6 VIA = GND or 3.6 V VIB = VIHB or VILB G = VCCB ± 1.0 ± 10 μA VIA = GND to 3.6 V VIB = GND to 3.6 V G, Dir = GND to 3.6 V ± 1.0 ± 10 μA VCCB (V) VCCA 2.7 0 0 Max Unit Max V V V V μA μA ± 500 9/23 Electrical characteristics Table 7. ST16C32245 DC specification for VCCA (continued) Test condition Symbol IOFFI2C ICCtA ΔICCtA Parameter VCCB (V) Power Off I2C line leakage current Quiescent supply current Maximum quiescent supply current / Input (An) Value VCCA (V) 1.65 to 2.7 0 1.95 3.6 1.95 2.7 2.7 3.6 2.7 3.6 1.95 3.6 1.95 2.7 TA = 25 °C -40 to 85°C Min Min Max Unit Max I/OVA1,2 = GND or VCCA; I/OVB1,2 = GND or VCCB; 2G = VCCB 1.0 5 μA VIA = VCCA or GND VIB = VCCB or GND I/OVA1,2 = VCCA or Open; Dir, G = GND or VCCB 2 20 μA 0.75 mA VIA =VCCA - 0.6V VIB =VCCB or GND 1. VCC range = 3.3±0.3; 2.5±0.2V and 2.8±0.1V; 1.8±0.15V Table 8. DC specification for VCCB Test condition Symbol VIHB VILB Parameter High level input voltage (Bn, Dir, G)(1) Low level input voltage (Bn, Dir, G) (1) VOHB VOLB IIB 10/23 High level output voltage Low level output voltage Input leakage current Value TA = 25 °C -40 to 85°C VCCB (V) VCCA (V) Min 1.8 2.5 0.65VCCB 0.65VCCB 1.8 3.3 0.65VCCB 0.65VCCB 2.5 3.3 1.6 1.6 1.8 2.5 0.35VCCB 0.35VCCB 1.8 3.3 0.35VCCB 0.35VCCB 2.5 3.3 0.7 0.7 2.3 3.0 IO=-100μA 2.1 2.1 2.3 3.0 IO=-18mA 1.7 1.7 1.65 3.0 IO=-6mA 1.25 1.25 1.65 2.3 IO=-6mA 1.25 1.25 2.3 3.0 IO=100μA 0.2 0.2 2.3 3.0 IO=18mA 0.60 0.60 1.65 3.0 IO=6mA 0.30 0.30 1.65 2.3 IO=6mA 0.30 0.30 2.7 3.6 VI = VCC or GND ± 0.5 ±5 Max Min Unit Max V V V V μA ST16C32245 Table 8. Electrical characteristics DC specification for VCCB (continued) Test condition Symbol Parameter Input hold IIB(HOLD) current IOZB High impedance output leakage current ICCtB Quiescent supply current ΔICCtB Maximum quiescent supply current / Input (Bn, DIR, G) Value TA = 25 °C -40 to 85°C VCCB (V) VCCA 1.65 2.3 VI = 0.57 V 25 25 1.65 2.3 VI = 1.07 V -25 -25 1.65 3.0 VI = 0.57 V 25 25 1.65 3.0 VI = 1.07 V -25 -25 2.3 3.0 VI = 0.7 V 45 45 2.3 3.0 VI = 1.6 V -45 -45 2.7 3.6 VI = 0 to 2.7 V 2.7 3.6 VIA = VIHA or VILA VIB = GND or 2.7V G = VCCB 1.95 3.6 1.95 2.7 2.7 3.6 2.7 3.6 1.95 3.6 1.95 (V) Min VIA =VCCA or GND VIB =VCCB or GND Dir or G=VCCB or GND I/OVA1,2=VCCA or Open VIB =VCCB - 0.6V VIA =VCCA or GND Max Min Unit Max μA ± 500 ± 1.0 ± 10 μA 2 20 μA 0.75 mA 2.7 1. VCC range = 3.3±0.3; 2.5±0.2V and 2.8±0.1V; 1.8±0.15V 11/23 Electrical characteristics Table 9. ST16C32245 Dynamic switching characteristics Test condition Symbol VOLPA VOLPB VOLVA VOLVB VOHVA VOHVB 12/23 Parameter Dynamic low level quiet An output Dynamic low level quiet Bn output Dynamic low level quiet An output Dynamic low level quiet Bn output Dynamic high level quiet An output Dynamic high level quiet Bn output VCCB (V) VCCA (V) 1.8 2.5 1.8 3.3 2.5 3.3 1.8 2.5 1.8 3.3 2.5 3.3 1.8 2.5 1.8 3.3 2.5 3.3 1.8 2.5 1.8 3.3 2.5 3.3 1.8 2.5 1.8 3.3 2.5 3.3 1.8 2.5 1.8 3.3 2.5 3.3 Value TA = 25 °C Min CL = 30 pF VIL = 0 V VIH = VCC CL = 30 pF VIL = 0 V VIH = VCC CL = 30 pF VIL = 0 V VIH = VCC CL = 30 pF VIL = 0 V VIH = VCC CL = 30 pF VIL = 0 V VIH = VCC CL = 30 pF VIL = 0 V VIH = VCC Typ Max -40 to 85 °C Min Unit Max. 0.25 0.35 V 0.35 0.25 0.25 V 0.6 -0.25 -0.35 V -0.35 -0.25 -0.25 V -0.6 2.1 2.6 V 2.6 1.7 1.7 2.0 V ST16C32245 Table 10. Electrical characteristics DC specification I2C lines Test condition Symbol TA = 25 °C -40 to 85 °C (1) VCCA (V) Min. Max. Min. Max. 1.8 2.65 to 3.6 0.7 VCCB VCCB 0.7 VCCB VCCB 1.8 2.65 to 3.6 0.7 VCCB VCCB 0.7 VCCB VCCB 1.8 2.65 to 3.6 0.7 VCCA VCCA 0.7 VCCA VCCA 1.8 2.65 to 3.6 0.7 VCCA VCCA 0.7 VCCA VCCA Low level input voltage (I/OVB1, I/OVB2) 1.8 2.65 to 3.6 0 0.25 0 0.25 1.8 2.65 to 3.6 0 0.25 0 0.25 Low level input voltage (I/OVA1, I/OVA2) 1.8 2.65 to 3.6 0 0.25 0 0.25 1.8 2.65 to 3.6 0 0.25 0 0.25 High level output voltage (I/OVB1, I/OVB2) 1.65 2.3 IOH = -20 µA; VCCB-0.4 VI/OVA=VCCA VCCB-0.4 High level output voltage (I/OVA1, I/OVA2) 1.65 2.3 IOH = -20 µA; VCCA-0.4 VI/OVB=VCCB VCCA-0.4 Low level output voltage (I/OVB1, I/OVB2), (I/OVA1, I/OVA2) 1.65 2.3 IOL = 1 mA; VI/OVB or VI/OVA=GND Parameter High level input voltage (I/OVB1, I/OVB2) VIH2 High level input voltage (I/OVA1, I/OVA2) VIL2 VOH2 VOL2 VCCB (V) Value Unit V V 0.35 V 0.35 V 1. VCC range = 1.8±0.15 V 13/23 Electrical characteristics Table 11. ST16C32245 AC electrical characteristics Test condition Symbol tPLH tPHL tPLH tPHL tPZL tPZH tPZL tPZH tPLZ tPHZ tPLZ tPHZ tOSLH tOSHL Parameter Propagation delay time An to Bn Propagation delay time Bn to An (1) Output enable time G to An Output enable time G to Bn Output disable time G to An Output disable time G to Bn Output to output skew time (2) (3) VCCB (V) VCCA (V) 1.8 ± 0.15 2.5 ± 0.2 1.8 ± 0.15 3.3 ± 0.3 2.5 ± 0.2 3.3 ± 0.3 1.8 ± 0.15 2.5 ± 0.2 1.8 ± 0.15 3.3 ± 0.3 2.5 ± 0.2 3.3 ± 0.3 1.8 ± 0.15 2.5 ± 0.2 1.8 ± 0.15 3.3 ± 0.3 2.5 ± 0.2 3.3 ± 0.3 1.8 ± 0.15 2.5 ± 0.2 1.8 ± 0.15 3.3 ± 0.3 2.5 ± 0.2 3.3 ± 0.3 1.8 ± 0.15 2.5 ± 0.2 1.8 ± 0.15 3.3 ± 0.3 2.5 ± 0.2 3.3 ± 0.3 1.8 ± 0.15 2.5 ± 0.2 1.8 ± 0.15 3.3 ± 0.3 2.5 ± 0.2 3.3 ± 0.3 1.8 ± 0.15 2.5 ± 0.2 1.8 ± 0.15 3.3 ± 0.3 2.5 ± 0.2 3.3 ± 0.3 Value -40 to 85 °C CL = 30 pF RL = 500 Ω CL = 30 pF RL = 500 Ω CL = 30 pF RL = 500 Ω CL = 30 pF RL = 500 Ω CL = 30 pF RL = 500 Ω CL = 30 pF RL = 500 Ω Min Max 1.0 5.8 1.0 6.2 1.0 4.4 1.0 5.5 1.0 5.1 1.0 4.0 1.0 5.3 1.0 5.1 1.0 4.0 1.0 8.3 1.0 8.2 1.0 4.6 1.0 5.2 1.0 5.6 1.0 4.8 1.0 4.6 1.0 4.5 1.0 4.4 Unit 0.5 0.75 2. Skew is defined as the absolute value of the difference between the actual propagation delay for any two outputs of the same device switching in the same direction, either HIGH or LOW (tOSLH = | tPLHm - tPLHn|, tOSHL = | tPHLm - tPHLn|. 14/23 ns ns ns ns ns 0.5 CL = 30 pF RL = 500 Ω 1. To add 2.5 ns at tPLH, tPHL max propagation delay time Bn to An at VCCB =1.8 ±0.15 V; VCCA= 2.8 ±0.1 V; RL= 500 Ω, when CL=60 pF. 3. Parameter guaranteed by design. ns ns ST16C32245 Table 12. Electrical characteristics AC I2C electrical characteristics Test condition Symbol Parameter VCCB VCCA (1) (1) (V) (V) 1.8 ± 0.15 trI/O tfI/O tPLH tPHL fI/OVA, fI/OVB 2 Rise time I C input/output voltage (20% to 80%) Fall time I2C input/output voltage (80% to 20%) Propagation delay time I2C I/O voltage (20% to 80%) (low to high) Propagation delay time I2C I/O voltage (20% to 80%) high to low) I2C lines data rate Value -40 to 85 °C Min. Max. 2.5 ± 0.2 1.8 ± 0.15 3.3 ± 0.3 2.5 ± 0.2 3.3 ± 0.3 1.8 ± 0.15 2.5 ± 0.2 1.8 ± 0.15 3.3 ± 0.3 2.5 ± 0.2 3.3 ± 0.3 1.8 ± 0.15 2.5 ± 0.2 1.8 ± 0.15 3.3 ± 0.3 2.5 ± 0.2 3.3 ± 0.3 1.8 ± 0.15 2.5 ± 0.2 1.8 ± 0.15 3.3 ± 0.3 2.5 ± 0.2 3.3 ± 0.3 1.8 ± 0.15 2.5 ± 0.2 1.8 ± 0.15 3.3 ± 0.3 2.5 ± 0.2 3.3 ± 0.3 Unit 250 CL = 15 pF trI/O = 15 ns ns 250 CL = 15 pF trI/O = 15 ns ns 100 CL = 15 pF trI/O = 15 ns ns 100 CL = 15 pF trI/O = 15 ns ns 400 CL = 15 pF trI/O = 15 ns KHz 1. VCC range = 3.3±0.3; 2.5±0.2 V and 2.8 ±0.1 V; 1.8 ±0.15 V Table 13. Capacitance characteristics Test condition Symbol Parameter Input capacitance CI/O Input/Output capacitance 2.5 3.3 Power dissipation capacitance 2.5 3.3 1.8 3.3 CPD (1) TA = 25 °C VCCB VCCA (V) (V) CINB Value Min open open f = 10MHz Typ Max -40 to 85 °C Min Unit Max 5 pF 6 pF 28 pF 28 pF 1. CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without load. (Refer to test circuit). Average current can be obtained by the following equation. ICC(opr) = CPD x VCC x fIN + ICC/14 (per circuit) 15/23 Test circuit 5 ST16C32245 Test circuit Figure 4. Test circuit Table 14. Test circuit Test tPLH, tPHL tPZL, tPLZ (VCC = 3.0 to 3.6 V) Open 6V tPZL, tPLZ (VCC = 2.3 to 2.7 V or VCC = 1.65 to 1.95 V) 2VCC tPZH, tPHZ GND CL = 10/30 pF or equivalent (includes jig and probe capacitance) RL = R1 = 500Ω or equivalent RT = ZOUT of pulse generator (typically 50Ω) 16/23 Switch ST16C32245 6 Waveforms Waveforms Table 15. Waveform symbol value VCC Symbol Figure 5. 3.0 to 3.6 V 2.3 to 2.7 V 1.65 to 1.95 V VIH VCC VCC VCC VM 1.5V VCC/2 VCC/2 VX VOL +0.3V VOL +0.15V VOL +0.15V VY VOL -0.3V VOL -0.15V VOL -0.15V Waveform - propagation delay (f = 1 MHz; 50% duty cycle) 17/23 Waveforms 18/23 ST16C32245 Figure 6. Waveform - output enable and disable time (f = 1 MHz; 50% duty cycle) Figure 7. Waveform - I2C propagation delay time (f = 400 KHz; 50% duty cycle, CL = 15 pF) ST16C32245 7 Package mechanical data 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. 19/23 Package mechanical data ST16C32245 μTFBGA42 mechanical data Figure 8. μTFBGA42 MECHANICAL DATA mm. mils DIM. A MIN. TYP MAX. MIN. TYP. MAX. 1.0 1.1 1.16 39.4 43.3 45.7 A1 0.25 A2 0.78 b 0.25 D 3.9 D1 E 9.8 0.86 30.7 0.30 0.35 9.8 11.8 13.8 4.0 4.1 153.5 157.5 161.4 3 3.4 3.5 33.9 118.1 3.6 133.9 137.8 E1 2.5 98.4 e 0.5 19.7 SE 0.25 9.8 141.7 7513237/A 20/23 ST16C32245 Package mechanical data μTFBGA42 tape and reel Figure 9. Tape & Reel TFBGA42 MECHANICAL DATA mm. inch DIM. MIN. TYP A MAX. MIN. TYP. 330 13.2 12.992 C 12.8 D 20.2 0.795 N 60 2.362 T 0.504 0.519 14.4 0.567 Ao 3.8 0.149 Bo 4.3 0.169 Ko MAX. 1.05 0.041 Po 3.9 4.1 0.153 0.161 P 7.9 8.1 0.311 0.319 21/23 Revision history 8 ST16C32245 Revision history Table 16. 22/23 Document revision history Date Revision Changes 01-Oct-2004 1 Initial release. 31-Mar-2005 2 Document status promoted from preliminary data to datasheet. 04-Mar-2009 3 Document reformatted. TSSOP and TFBGA54 packages removed. ST16C32245 Please Read Carefully: Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. 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