ST1G3236 1-bit dual supply bus transceiver level translator with A-side series resistor Features ■ High speed: tPD = 4.0ns (Max.) at TA = 85°C ■ Low power dissipation: ICCA = ICCB = 5μA(Max.) at TA = 85°C ■ Balanced propagation delays: tPLH ≅ tPHL ■ Power-down protection on inputs and outputs ■ 26Ω series resistor on A-side outputs ■ Operating voltage range: – VCCA(Opr) = 1.2V to 3.6V – VCCB(Opr) = 1.2V to VCCA DFN6L Description ■ Latch-up performance exceeds 100mA per JESD 78, Class II ■ ESD performance exceeds JESD22 – 2000-V Human-body model (A114-A) The ST1G3236 is a dual supply low voltage CMOS 1-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 1.2V bus in mixed supply systems of 3.3V/1.2V, 3.3V/2.5V and 2.5V/1.8V, the ST1G3236 achieves high speed operation while maintaining low power dissipation. VCCA and VCCB can be powered from 1.2V to 3.6V respectively. The DIR pin is designed to track VCCB. The device is intended for two-way asynchronous communication between data buses and the direction of data transmission is determined by DIR inputs. All inputs are equipped with protection circuits against static discharge, giving them 2kV ESD immunity and transient excess voltage. Table 1. July 2007 Device summary Order code Package Packaging ST1G3236DTR DFN6L (1.2x1mm) Tape and Reel Rev 1 1/19 www.st.com 19 Contents ST1G3236 Contents 1 Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.1 Pin settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Pin connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 Maximum rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 3.1 Recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 4 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 5 Test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 6 Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 7 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 8 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 2/19 ST1G3236 Device summary 1 Device summary 1.1 Pin settings Figure 1. Logic diagram GND DIR A1 B1 VCCB VCCA CS000101 Figure 2. Pin connection (top through view) V CCA 1 6 V GND 2 5 DIR A1 3 4 B1 CCB DFN6L 1.2 Pin description Table 1. Pin description Pin N° Symbol Name and function 1 VCCA Positive supply voltage 2 GND Ground (0V) 3 A1 Data Inputs/Outputs 4 B1 Data Inputs/Outputs 5 DIR Directional controls 6 VCCB Positive supply voltage 3/19 Pin connection 2 ST1G3236 Pin connection Figure 3. Input and output equivalent circuit VCCB / VCCA Overvolt. control Bn/An An/Bn Control Inputs R S = (0Ω / 26Ω) ESD protection ESD protection GND GND GND GND GND GND CS157401 Table 2. Truth table Function Dir input 4/19 Bus A Bus B L Output Input H Input Output ST1G3236 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. Refer also to the STMicroelectronics SURE Program and other relevant quality documents. Table 3. Absolute maximum ratings Symbol Value Unit -0.5 to 4.6 V VCCA Output supply voltage VCCB Input supply voltage -0.5 to + 4.6 V DC input voltage -0.5 to +4.6 V VI VI/OA DC output voltage -0.5 to VCCA + 0.5 V VI/OB DC output voltage -0.5 to VCCB + 0.5 V 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 VCCA or ground current ± 100 mA ICCB DC VCCB or ground current ± 100 mA 200 mW -65 to +150 °C 260 °C Pd Power dissipation Tstg Storage temperature TL 3.1 Parameter Lead temperature (10 sec) Recommended operating conditions Table 4. Recommended operating conditions Symbol Parameter Value Unit VCCA Supply voltage 1.2 to 3.6 V VCCB(1) Supply voltage 1.2 to VCCA V 5/19 Maximum rating Table 4. ST1G3236 Recommended operating conditions Symbol Value Unit Input voltage (DIR) 0 to VCCB V VI/OA I/O voltage 0 to VCCA V VI/OB I/O voltage 0 to VCCB V Operating temperature -40 to 85 °C VCCB = 3.0 to 3.6V 0 to 10 ns/V VCCB = 2.3 to 2.7V 0 to 20 ns/V VCCB = 1.2 to 1.95V 0 to 100 ns/V VI Top dt/dv(2) Parameter Input Rise and Fall Time 1. VCCB must be lower than VCCA 2. 6/19 VIN from 0.8V to 2.0V at VCC = 3.0V ST1G3236 4 Electrical characteristics Electrical characteristics Table 5. DC specification for VCCA Test condition Symbol VIHA VILA Parameter High level input voltage (A1) Low level input voltage (A1) VCCB (V) 1.2 to VCCA 1.2 to VCCA Value TA = 25 °C VCCA (V) Min Max VOHA 1.2 to VCCA 0.65 VCCA 0.65 VCCA 1.95 to 2.7 1.6 1.6 2.7 to 3.6 2 2 VOLA IIA Input leakage current Unit Max V 1.2 to 1.95 0.35VCCA 0.35 VCCA 1.95 to 2.7 0.7 0.8 2.7 to 3.6 0.8 0.8 V VCCA0.2 3.0 IO=-10mA 2.5 2.5 2.3 IO=-6mA 1.8 1.8 1.65 IO=-4mA 1.25 1.25 1.4 IO=-2mA 1.1 1.1 1.2 IO=-1mA 0.95 0.95 1.2 to I =-100μA 3.6V O Low level output voltage Min 1.2 to 1.95 1.2 to I =-100μA VCCA- 0.2 3.6V O High level output voltage -40 to 85 °C V 0.2 0.2 3.0 IO=-10mA 0.55 0.55 2.3 IO=-6mA 0.40 0.40 1.65 IO=-4mA 0.40 0.40 1.4 IO=-2mA 0.30 0.30 1.2 IO=-1mA 0.25 0.25 2.7 3.3 VI =VCCA or GND ± 0.5 ±5 μA 1.4 2.7 VIA =3.6V or GND ± 0.5 ±5 μA 1.2 to VCCA V 7/19 Electrical characteristics Table 5. ST1G3236 DC specification for VCCA (continued) Test condition Symbol IOFF ICCtA ΔICCtA Table 6. Parameter VCCB (V) Power OFF leakage current Quiescent supply current 0 1.2V 1.2 to 3.6V 1.2 to 3.6V 3.6 Maximum quiescent supply current/input TA = 25 °C VCCA (V) 0 Value Min Max ± 10 μA VIA=VCCA or GND VIB=VCCB or GND DIR =A to B 0.5 5 μA 0.75 μA 3.3V VIA =VCCA to 0.6V 3.3 VIB =VCCB 2.7 or GND 2.7V 1.8 1.8 DC specification for VCCB Parameter VCCB (V) VCCA (V) High level input voltage (A1) 1.8 2.5 VCCB to 3.6V 3.3 1.2 VILB Low level input voltage (B1, DIR) 1.8 2.5 3.3 8/19 Max ± 1.0 1.2 VIHB Min Unit VIA=GND to 3.6V VIB=GND to 3.6V DIR=GND to 3.6V Test condition Symbol -40 to 85 °C VCCB to 3.6V Value TA = 25 °C Min Max -40 to 85 °C Min 0.65 VCCB 0.65 VCCB 1.2 1.2 1.6 1.6 2 2 Unit Max V 0.35 VCCB 0.35 VCCB 0.6 0.6 0.7 0.7 1.0 1.0 V ST1G3236 Electrical characteristics Table 6. DC specification for VCCB (continued) Test condition Symbol Parameter VCCB (V) (V) IO=100μA IIB ICCtB ΔICCtB Low level output voltage Maximum quiescent supply current/input (B1, DIR) Min VCCB0.2 VCCB -0.2 2.5 2.5 1.65 1.25 1.25 1.4 IO=-2mA 1.1 1.1 1.2 IO=-1mA 0.95 0.95 1.2 to 3.6V IO=100μA 0.2 0.2 0.55 0.55 0.40 0.40 0.40 0.40 1.65 IO=10mA VCCB to IO=-6mA 3.6V IO=-4mA 1.4 IO=-2mA 0.30 0.30 1.2 IO=-1mA 0.25 0.25 2.3 Unit Max 1.8 V V 2.7 3.3 VIB =VCC or GND ± 0.5 ±5 μA 1.4 2.7 VIB =3.6V or GND ± 0.5 ±5 μA 0.5 5 μA 0.75 μA Input leakage current Quiescent supply current Max 1.8 2.3 3.0 VOLB Min -40 to 85 °C IO=10mA VCCB to IO=-6mA 3.6V IO=-4mA 3.0 High level output voltage TA = 25 °C VCCA 1.2 to 3.6V VOHB Value 1.2 to VCCA VIA=VCC A or GND 1.2 to VIB=VCC 3.6 B or GND DIR =B to A 2.7 3.3 1.8 3.3 1.8 2.7 VIB =VCCB to 0.6V VIA =VCCB or GND - - - - - - - - - 9/19 Electrical characteristics Table 7. ST1G3236 AC electrical characteristics Test condition Symbol tPLH tPHL tPLH tPHL Parameter Propagation delay time An to Bn Propagation delay time Bn to An Output enable time tPZL tPZH DIR to An Output enable time tPZL tPZH DIR to Bn Table 8. 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 Value Min CL = 30 pF RL = 500Ω CL = 10 pF CL = 30 pF RL = 500 Ω 10/19 1 Max 1.0 4 1.0 3.5 1.0 2.8 1.0 3.8 1.0 3.4 1.0 2.7 1.0 4.5 1.0 4 1.0 3 1.0 4.5 1.0 4 1.0 3 ns CL = 10 pF 6 CL = 30 pF RL = 500Ω 6 ns 6 6 CL = 30 pF RL = 500Ω 6 ns 6 Capacitance characteristics Parameter Value TA = 25 °C VCCB VCCA (V) (V) Min Note: Typ ns Test condition Symbol Unit -40 to 85 °C CINB Input capacitance CI/O CPD Typ Max -40 to 85 °C Min Unit Max open open 6 pF I/O capacitance 2.5 3.3 6 pF Power dissipation capacitance 2.5 3.3 29 pF 1.8 3.3 29 pF f = 10MHz 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/4 (per circuit) ST1G3236 5 Test circuit Test circuit Figure 4. Test circuit VCC 6V or 2V CC Open GND R1 Pulse generator D.U.T. RT CL RL SC116901 Table 9. Test circuit Test tPLH, tPHL Switch CL =30pF ; RL =500Ω Open RT = ZOUT of pulse generator (typically 50Ω) 11/19 Waveforms 6 ST1G3236 Waveforms Figure 5. Waveform - propagation delay (f=1 MHz, 50% duty cycle) Table 10. Waveform symbol value VCC Symbol 12/19 3.0 to 3.6V 2.3 to 2.7V 1.65 to 1.95V VIH VCC VCC VCC VM 1.5V VCC/2 VCC/2 VX VOL +0.3V VOL +0.15V VOL +0.15V VY VOH -0.3V VOH -0.15V VOH -0.15V ST1G3236 Waveforms Figure 6. Waveform - Output Enable and Disable timing (f=1 MHz, 50% duty cycle) 2.0ns 2.0ns 90% V nG VM M 10% t V IH 90% 10% GND t PZH PHZ V OH VY nAn V M nBn GND t t PZL PLZ 3.0V or VCC nAn nBn V M VX V OL SC132311 13/19 Package mechanical data 7 ST1G3236 Package mechanical data In order to meet environmental requirements, ST offers these devices in ECOPACK® 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. Figure 7. DFN6 (1.2x1mm) package outline Table 11. DFN6L (1.2x1mm) mechanical data millimeters Symbol Min Typ Max A 0.45 0.50 0.55 A1 0 0.02 0.05 A3 0.127 b 0.15 0.20 0.25 D 1.15 1.20 1.25 E 0.95 1 1.05 e 14/19 0.40 L 0.30 0.35 0.40 L1 0.40 0.45 0.50 ST1G3236 Package mechanical data Figure 8. Recommended footprint Figure 9. Tape and reel information 15/19 Package mechanical data Figure 10. Reel for carrier tape information 16/19 ST1G3236 ST1G3236 Package mechanical data Figure 11. Reel for carrier tape information 17/19 Revision history 8 ST1G3236 Revision history Table 12. 18/19 Revision history Date Revision 25-July-2007 1 Changes First release. ST1G3236 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. 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