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| ST2G3236 2-bit dual supply bus transceiver level translator with a side series resistor Features High speed: - tPD = 6.2ns (Max.) at TA = 85C - VCCB = 1.8V - VCCA = 3.3V Low power dissipation: - ICCA = ICCB = 5A (Max.) at TA = 85C Symmetrical output impedance: - |IOHA| = IOLA = 7mA Min at VCCA = 2.75V; VCCB = 1.65V or 2.3V - |IOHB| = IOLB = 2mA Min at VCCA = 2.3V or 3.0V; VCCB = 1.65V Balanced propagation delays: - TPLH TPHL Power down protections on inputs and outputs 26 series resistor on A side Operating voltage range: - VCCA (OPR) = 1.4V to 3.6V - VCCB (OPR) = 1.4V to 3.6V Max data rates: - 380Mbps (1.8V to 3.3V translation) - 260Mbps (<1.8V to 3.3V translation) - 260Mbps (Translate to 2.5V) - 210Mbps (Translate to 1.5V) Latch-up performance exceeds 500mA (JESD17) ESD performance: - HBM > 2kV (MIL STD 883 method 3015); - MM > 200V QFN10 (1.8mm x 1.4mm) Description The ST2G3236 is a dual supply low voltage CMOS 2-bit Bus Transceiver fabricated with submicron silicon gate and five-layer metal wiring C2MOS technology. Designed for use as an interface between a 3.3V bus and a 2.5V or 1.8V bus in a mixed 3.3V/1.8V, 3.3V/2.5V and 2.5V/1.8V supply systems, it achieves high speed operation while maintaining the CMOS low power dissipation. This IC is intended for two-way asynchronous communication between data buses and the direction of data transmission is determined by DIR inputs. The A-port interfaces with the 3V bus, the B-port with the 2.5V and 1.8V bus. All inputs are equipped with protection circuits against static discharge, giving them 2kV ESD immunity and transient excess voltage. Order codes Part number ST2G3236 Package QFN10 (1.8mm x 1.4mm) Packaging Tape and Reel December 2006 Rev 1 1/20 www.st.com 20 Contents ST2G3236 Contents 1 Logic diagram and I/O equivalent circuit . . . . . . . . . . . . . . . . . . . . . . . . 3 1.1 1.2 1.3 Truth table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Recommended power-up sequence is as follows: . . . . . . . . . . . . . . . . . . . 4 The recommended power-down sequence is as follows: . . . . . . . . . . . . . . 4 2 Pin settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2.1 2.2 Pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Pin descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 3 4 Electrical ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 4.1 4.2 4.3 4.4 DC electrical characteristics for VCCA . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 DC electrical characteristics for VCCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 AC electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Capacitance characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 5 6 7 8 Test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 2/20 ST2G3236 Logic diagram and I/O equivalent circuit 1 Logic diagram and I/O equivalent circuit Figure 1. Logic diagram A1 B1 DIR1 OE OE DIR A2 B2 Figure 2. I/O equivalent circuit 3/20 Logic diagram and I/O equivalent circuit ST2G3236 1.1 Truth table Table 1. Truth table Inputs OE L L H DIRn L H X A BUS Output Input High-Z Function Output B BUS Input Output High-Z B => A B <= A HIGH-Z 1.2 Recommended power-up sequence is as follows: 1. 2. 3. 4. Apply power to either VCC Apply power to the OE input and to the respective data inputs. This may occur at the same time as Step 1. Apply power to other VCC Drive the OE input LOW to enable the device. 1.3 The recommended power-down sequence is as follows: 1. 2. 3. Drive OE input HIGH to disable the device Remove power from either VCC Remove power from other VCC 4/20 ST2G3236 Pin settings 2 2.1 Pin settings Pin connections Figure 3. Pin connections (top through view) A2 9 A1 10 DIR1 VCCB DIR2 1 2 3 8 7 6 VCCA GND OE OE 4 B1 5 B2 2.2 Pin descriptions Table 2. Pin N 1, 3 10 4 9 5 7 8 2 6 Pin descriptions Symbol DIR1, DIR2 A1 B1 A2 B2 GND VCCA VCCB OE Directional controls Data inputs/outputs Data outputs/inputs Data inputs/outputs Data outputs/inputs Ground (0V) Positive supply voltage Positive supply voltage Output enable (active low) Name and function 5/20 Electrical ratings ST2G3236 3 Electrical 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. Refer also to the STMicroelectronics SURE Program and other relevant quality documents. Table 3. Symbol VCCA VCCB VI VI/OA VI/OB VI/OA VI/OB IIK IOK IOA IOB ICCA ICCB PD Tstg TL Supply voltage Supply voltage DC input voltage DC I/O voltage (output disabled) DC I/O voltage (output disabled) DC output voltage DC output voltage DC input diode current DC output diode current DC output current DC output current DC VCC or ground current DC VCC or ground current Power dissipation Storage temperature Lead temperature (10 sec) Absolute maximum ratings Parameter Value -0.5 to 4.6 -0.5 to 4.6 -0.5 to 4.6 -0.5 to 4.6 -0.5 to 4.6 -0.5 to VCCA + 0.5 -0.5 to VCCB + 0.5 -20 -50 50 50 100 100 200 -65 to +150 260 Unit V V V V V V V mA mA mA mA mA mA mW C C Table 4. Symbol VCCA VCCB VI VI/OA VI/OB Top Recommended operating conditions Parameter Supply voltage Supply voltage Input voltage (DIRn, OE) I/O voltage I/O voltage Operating temperature VCCB = 3.0 to 3.6V Value 1.4 to 3.6 1.4 to 3.6 0 to VCCA 0 to VCCA 0 to VCCB -40 to +85 0 to 10 0 to 20 0 to 100 Unit V V V V V C ns/V ns/V ns/V dt/dv Input rise and fall time (1) VCCB = 2.3 to 2.7V VCCB = 1.4 to 1.95V 1. VIN from 0.8V to 2.0V at VCC = 3.0V 6/20 ST2G3236 Electrical characteristics 4 4.1 Table 5. Electrical characteristics DC electrical characteristics for VCCA DC specification for VCCA Test conditions Value TA = 25C Min 0.65VCCA 0.65VCCA 1.6 2.0 0.35VCCA 0.35VCCA 0.7 0.8 IO = -100A IO = -0.4mA IO = -7mA IO = -5mA IO = -2mA IO = -1mA IO = 100A IO = 1mA IO = 7mA IO = 5mA IO = 2mA IO = 1mA VI = VCC or GND VI = 3.6V or GND VIA= GND or 3.6V VIB = VIHB or VILB OE = VCCB 1.2 2.5 2.2 1.8 1.4 1.1 0.20 0.40 0.55 0.40 0.25 0.20 0.5 0.5 1.2 2.5 2.2 V 1.8 1.4 1.1 0.20 0.40 0.55 V 0.40 0.25 0.20 5 5 A Max -40 to 85C Min 0.65VCCA 0.65VCCA 1.6 2.0 0.35VCCA 0.35VCCA 0.7 0.8 V V Max Unit Symbol Parameter VCCB(1) (V) VCCA(1) (V) 1.4 VIHA High level input voltage (An) 1.8 1.4 to 3.3V 2.5 3.3 1.4 VILA Low level input voltage (An) 1.8 1.4 to 3.3V 2.5 3.3 1.4 2.75 VOHA High level output voltage 2.75 1.4 to 3.3V 2.3 1.65 1.4 1.4 2.75 VOLA Low level output voltage 2.75 1.4 to 3.3V 2.3 1.65 1.4 IIA Input leakage current High impedance output leakage current 2.7 1.4 3.3 2.7 IOZA 2.7 3.3 1.0 10 A 7/20 Electrical characteristics Table 5. DC specification for VCCA Test conditions Symbol Parameter VCCB (1) (V) VCCA(1) (V) VIA=GND to 3.6V VIB=GND to 3.6V OE, DIR=GND to 3.6V VIA=VCCA or GND VIB=VCCB or GND TA = 25C Min Max Value ST2G3236 -40 to 85C Min Max Unit IOFF Power OFF leakage current Quiescent supply current Maximum quiescent supply current / input (An) 0 0 1.0 10 A 1.95 1.95 2.7 1.95 1.95 2.7 2.7 3.3 3.3 2.7 3.3 3.3 VIA=VCCA-0.6V VIB=VCCB or GND 0.75 mA 0.5 5 A ICCtA ICCtA 1. VCC range = 3.3 0.3; 2.5 0.2V; 1.8 0.15V 4.2 Table 6. DC electrical characteristics for VCCB DC specification for VCCB Test conditions Value TA = 25C Min 0.65VCCB 1.4 to 3.3V 0.65VCCB 1.6 2.0 0.35VCCB 1.4 to 3.3V 0.35VCCB 0.7 0.8 Max -40 to 85C Min 0.65VCCB 0.65VCCB 1.6 2.0 0.35VCCB 0.35VCCB 0.7 0.8 V V Max Unit Symbol Parameter VCCB (1) (V) 1.4 1.8 2.5 3.3 1.4 1.8 2.5 3.3 VCCA(1) (V) VIHB High level input voltage (Bn, DIRn, OE) Low level input voltage (Bn, DIRn, OE) VILB 8/20 ST2G3236 Table 6. DC specification for VCCB Test conditions Symbol Parameter VCCB(1) (V) 1.4 1.8 High level output voltage 2.75 2.75 2.3 1.65 1.4 1.4 1.8 Low level output voltage 2.75 2.75 2.3 1.65 1.4 IIB Input leakage current High impedance output leakage current Quiescent supply current Maximum quiescent supply current / input (Bn, DIRn, OE) 2.7 1.4 3.3 2.7 1.4 to 3.3V 1.4 to 3.3V VCCA(1) (V) IO = -100A IO = -100A IO = -20mA IO = -15mA IO = -4mA IO = -2mA IO = -2mA IO= 100A IO= 100A IO= 20mA IO= 15mA IO= 4mA IO= 2mA IO= 2mA VI = VCC or GND VI = 3.6V or GND VIA = VIHA or VILA VIB = GND or 3.6V OE=VCCB VIA=VCCA or GND VIB=VCCB or GND TA = 25C Min 1.3 1.6 2.2 1.7 1.44 1.5 1.25 0.1 0.2 0.55 0.35 0.39 0.20 0.15 0.5 0.5 Max Electrical characteristics Value -40 to 85C Min 1.3 1.6 2.2 1.7 1.44 1.5 1.25 0.1 0.2 0.55 0.35 0.39 0.20 0.15 5 5 A V V Max Unit VOHB VOLB IOZB 2.7 3.3 1.0 10 A 1.95 1.95 2.7 1.95 1.95 2.7 2.7 3.3 3.3 2.7 3.3 3.3 VIB=VCCB - 0.6V VIA=VCCA or GND 0.75 mA 0.5 5 A ICCtB ICCtB 1. VCC range = 3.3 0.3; 2.5 0.2V; 1.8 0.15V 9/20 Electrical characteristics ST2G3236 4.3 Table 7. AC electrical characteristics AC electrical characteristics Test condition Value -40 to 85 C VCCB (V) 1.8 0.15 VCCA (V) Min 2.5 0.2 3.3 0.3 3.3 0.3 2.5 0.2 3.3 0.3 3.3 0.3 2.5 0.2 3.3 0.3 3.3 0.3 2.5 0.2 3.3 0.3 3.3 0.3 2.5 0.2 3.3 0.3 3.3 0.3 2.5 0.2 3.3 0.3 3.3 0.3 2.5 0.2 3.3 0.3 3.3 0.3 CL = 30pF RL = 500 CL = 30pF RL = 500 CL = 30pF RL = 500 CL = 30pF RL = 500 CL = 30pF RL = 500 CL = 30pF RL = 500 CL = 30pF RL = 500 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 Propagation delay time An to Bn Max 5.8 6.2 4.4 5.5 5.1 4.0 5.4 5.1 4.0 5.3 5.2 4.6 5.2 5.6 4.8 4.6 4.5 4.4 0.5 0.5 0.75 ns ns ns ns ns ns ns Unit Symbol Parameter tPLH tPHL 1.8 0.15 2.5 0.2 1.8 0.15 tPLH tPHL Propagation delay time Bn to An 1.8 0.15 2.5 0.2 1.8 0.15 tPZL tPZH Output enable time OE to An 1.8 0.15 2.5 0.2 1.8 0.15 tPZL tPZH Output enable time OE to Bn 1.8 0.15 2.5 0.2 1.8 0.15 tPLZ tPHZ Output disable time OE to An 1.8 0.15 2.5 0.2 1.8 0.15 tPLZ tPHZ Output disable time OE to Bn 1.8 0.15 2.5 0.2 1.8 0.15 tOSLH tOSHL Output to output skew time (1) (2) 1.8 0.15 2.5 0.2 1. 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 | 2. Parameter guaranteed by design 10/20 ST2G3236 Electrical characteristics 4.4 Capacitance characteristics Table 8. Capacitance characteristics Test Condition Symbol Parameter VCCB (V) Open 2.5 2.5 1.8 VCCA (V) Open 3.3 3.3 3.3 f=10MHz Value TA = 25 C Min. Typ. Max. 5 6 29 pF 29 -40 to 85 C Min. Max. pF pF Unit CINB CI/O CPD (1) Input capacitance Input/output capacitance Power dissipation capacitance 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/16 (per circuit) 11/20 Test circuit ST2G3236 5 Test circuit Figure 4. Test circuit Table 9. Test values Test Switch Open 6V 2VCC GND tPLH, tPHL tPZL, tPLZ (VCC = 3.0 to 3.6V) tPZL, tPLZ (VCC = 2.3 to 2.7V or VCC = 1.6 to 1.95V) tPZH, tPHZ 12/20 ST2G3236 Waveforms 6 Waveforms Table 10. Waveform symbol value VCC 3.0 to 3.6V VIH VM VX VY Symbol VCC 1.5V VOL + 0.3V VOL - 0.3V 2.3 to 2.7V VCC VCC/2 VOL + 0.15V VOL - 0.15V 1.65 to 1.95V VCC VCC/2 VOL + 0.15V VOL - 0.15V CL = 30pF or equivalent (includes jig and probe capacitance) RL = R1 = 500 or equivalent RT = ZOUT of pulse generator (typically 50) Waveform - propagation delay (f = 1MHz, 50% duty cycle) Figure 5. Figure 6. Waveform - output enable and disable time (f = 1MHz, 50% duty cycle) 13/20 Package mechanical data ST2G3236 7 Package mechanical data In order to meet environmental requirements, ST offers these devices in ECOPACK(R) packages. These packages have a Lead-free second level interconnect. The category of second level interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an ST trademark. ECOPACK specifications are available at: www.st.com 14/20 ST2G3236 Table 1. QFN10L(1.8x1.4) Mechical data ref. A A1 A3 b D E e L mm Nom 0.50 0.02 0.127 0.20 1.80 1.40 0.40 0.40 0.30 0.50 0.15 1.70 1.30 0.25 1.90 1.50 Min 0.45 0 Max 0.55 0.05 Nom 0.020 0.001 0.005 0.007 0.070 0.055 0.015 0.015 Package mechanical data inch Min 0.017 0 0 0.006 0.066 0.051 0.011 Max 0.021 0.002 0 0.010 0.074 0.059 0.020 Figure 7. Package dimension 15/20 Package mechanical data ST2G3236 Figure 8. QFN10L(1.8x1.4) Foot print recommendation Figure 9. QFN10L(1.8x1.4) carrier type 16/20 ST2G3236 Figure 10. QFN10L(1.8x1.4) Reel information Package mechanical data 17/20 Package mechanical data Figure 11. QFN10L(1.8x1.4) Reel information ST2G3236 18/20 ST2G3236 Revision history 8 Revision history Table 11. Date 06-Dec-2006 Revision history Revision 1 First release Changes 19/20 ST2G3236 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. Purchasers are solely responsible for the choice, selection and use of the ST products and services described herein, and ST assumes no liability whatsoever relating to the choice, selection or use of the ST products and services described herein. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. 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