ST6G3237B Dual supply level translator for SD/ MINISD / T-FLASH Features ■ High speed: – tPD = 6.2ns (Max.) at TA = 85°C – VCCB = 3.0V – VCCA = 2.3V ■ Low power dissipation: – ICCA = ICCB = 5µA (Max.) at TA = 85°C ■ Balanced propagation delays: – TPLH ≈ TPHL ■ Power down protections on inputs and outputs ■ 26Ω series resistor on A-Side ■ Operating voltage range: – VCCA (OPR) = 1.4V to VCCB – VCCB (OPR) = 1.4V to 3.6V ■ Latch-up performance exceeds 500mA (JESD17) ■ ESD performance: – HBM > 2kV (MIL STD 883 method 3015); ■ ROHS compliant for µTFBGA25 package µTFBGA25 The A port is designed to track VCCA. The B port is designed to track VCCB. This IC is intended for two-way asynchronous communication between data buses and the direction of data transmission is determined by CMD-dir/DATA0-dir/DAT123-dir inputs. The B-port interfaces with the 3V bus, the A-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. The ST6G3237B is VCCB = 0V tolerant, achieving very low current consumption when the VCCB is grounded. Description The ST6G3237B is a dual supply low voltage CMOS Level Translator for SD/MiniSD/T-Flash fabricated with sub-micron silicon gate and fivelayer 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. Figure 1. June 2007 Device summary Part number Package Packaging ST6G3237BTBR µTFBGA25 Tape and reel Rev 1 1/16 www.st.com 16 Contents ST6G3237B Contents 1 Logic diagram and truth table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Pin settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2.1 Pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2.2 Pin descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 3 Electrical ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 4 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 4.1 DC electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 4.2 AC electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 4.3 Output slew rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 4.4 Capacitance characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 5 Test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 6 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 7 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 2/16 ST6G3237B 1 Logic diagram and truth table Logic diagram and truth table Figure 1. Logic diagram VL VCC ST6G3237B CMD-dir 26Ω CMD 26Ω DAT0 DAT1.h 26Ω DAT1 DAT2.h 26Ω DAT2 DAT3.h 26Ω DAT3 CLK.h 26Ω CMD.h DATA0-dir DAT0.h DAT123-dir CLK CLK-f GND Table 2. Truth table Function CMDdir DAT0dir DAT12 3-dir CMD.h CMD Output DAT0.h DAT0 DAT1.h DAT1 DAT2.h DAT2 DAT3.h DAT3 H X X I O X X X X B=A L X X O I X X X X A=B X H X X X I O X X B=A X L X X X O I X X A=B X X H X X X X I O B=A X X L X X X X O I A=B 3/16 Pin settings ST6G3237B 2 Pin settings 2.1 Pin connections Figure 2. 4/16 Pin connections (top through view) ST6G3237B 2.2 Pin settings Pin descriptions Table 3. Pin Nº Pin descriptions µTFBGA25 Type Side Symbol Name and function A2 I A-side CMD-dir D2 I/O A-side CMD.h A-side Command D4 I/O B-Side CMD B-side Command Command direction HIGH = A to B LOW = B to A Data Direction HIGH = A to B (write) LOW = B to A (read) A3 I A-Side DAT0-dir D1 I/O A-Side DAT0.h Data Input / Output D5 I/O B-Side DAT0 Data Input / Output E3 I A-Side DAT123-dir E1 I/O A-Side DAT1.h Data Input / Output A1 I/O A-Side DAT2.h Data Input / Output B1 I/O A-Side DAT3.h Data Input / Output E5 I/O B-Side DAT1 Data Input / Output A5 I/O B-Side DAT2 Data Input / Output B5 I/O B-Side DAT3 Data Input / Output C1 I A-Side CLK.h Clock Input C5 O B-Side CLK E2 O A-Side CLK-f Clock Feedback B3 - A-Side VCCA Power supply B4 - B-Side VCCB Power supply C3, C4 - - GND Ground (0V) A4, B2, C2, D3, E4 - - NC No connect Data Direction HIGH = A to B (write) LOW = B to A (read) Clock Output ● CMD, Command is a bidirectional line. The host and card drivers are operating in push-pull. ● DAT0-3, Data lines are bi-directional lines. Host and card drivers are operating in push-pull mode. ● CLK, Clock is a host to card signal. CLK operates in push-pull mode. ● Feedback (return) Clock is feedback clock signal from level shifter to host for controlling delays. 5/16 Electrical ratings 3 ST6G3237B 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 4. Absolute maximum ratings Symbol Parameter 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 output voltage -0.5 to VCCA + 0.5 V VI/OB DC output voltage -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 Power dissipation 400 mW -65 to +150 °C 260 °C Value Unit PD TSTG TL Table 5. Storage temperature Lead temperature (10 sec) Recommended operating conditions Symbol Parameter VCCA Supply Voltage 1.4 to VCCB V VCCB Supply Voltage 1.4 to 3.6 V Input Voltage (CMD-dir/DAT0-dir/DAT123-dir) 0 to VCCA V VI/OA I/O Voltage 0 to VCCA V VI/OB I/O Voltage 0 to VCCB V -40 to +85 °C 0 to 10 ns/V VI Top dt/dv Operating Temperature Input Rise and Fall Time 1. VIN from 0.8V to 2.0V at VCC = 3.0V 6/16 Value (1) ST6G3237B Electrical characteristics 4 Electrical characteristics 4.1 DC electrical characteristics Table 6. DC specifications Test Conditions Symbol Value Parameter TA = 25°C -40 to 85°C Unit Vcc (V) Min 1.4 – 1.95 VIH High Level (A port) Input Voltage 1.95 – 2.7 VCCA to 3.6 2.7 – 3.6 1.95 – 2.7 VIL Low Level (B port) Input Voltage 1.4 to VCCB 1.4 to VCCB Min 0.65VCCA 1.7 1.7 2.0 2.0 VCCA to 3.6 2.7 – 3.6 VIH High Level (B port) Input Voltage Max 0.65VCCA 1.4 – 1.95 VIL Low Level (A port) Input Voltage Typ Max V 0.35VCCA 0.35VCCA 0.7 0.7 0.8 0.8 1.4 – 1.95 0.65VCCB 0.65VCCB 1.95 – 2.7 1.7 1.7 2.7 – 3.6 2.0 2.0 V 1.4 – 1.95 0.35VCCB 0.35VCCB 1.95 – 2.7 0.7 0.7 2.7 – 3.6 0.8 0.8 ● All A-port I/Os and control inputs are powered by VCCA ● All B-port I/Os are powered by VCCB V V 7/16 Electrical characteristics Table 7. ST6G3237B DC specifications Test conditions Symbol Parameter VOH High level (A port) output voltage VOL Low level (A port) output voltage VOH High level (B port) output voltage VOL Low level (B port) output voltage IIA, IIB Input leakage current IOFF Power OFF leakage current ICCA Quiescent supply current for A-side ICCB Quiescent supply current IOZ Leakage current when I/O are in High-Z 8/16 Value TA = 25°C -40 to 85°C VCCA (V) VCCB (V) 1.4-3.6 1.4-3.6 IOH = -100µA VCCA - 0.1 1.4 1.4 IOH = -1 mA 1.20 1.65 1.65 IOH = -2 mA 1.40 2.3 2.3 IOH = -4 mA 1.90 3 3 IOH = -8 mA 2.45 1.4-3.6 1.4-3.6 IOL = 100µA 0.10 Min Typ Max Min Unit Max V 1.4 1.4 IOL = 1 mA 0.20 1.65 1.65 IOL = 2 mA 0.25 2.3 2.3 IOL = 4 mA 0.40 3 3 IOL = 8 mA 0.55 1.4-3.6 1.4-3.6 IOH = -100µA VCCA - 0.1 1.4 1.4 IOH = -2 mA 1.25 1.65 1.65 IOH = -4 mA 1.45 2.3 2.3 IOH = -8 mA 1.90 3 3 IOH = -24 mA 2.45 1.4-3.6 1.4-3.6 IOL = 100µA 0.10 1.4 1.4 IOL = 2 mA 0.15 1.65 1.65 IOL = 4 mA 0.20 2.3 2.3 IOL = 8 mA 0.30 3 3 IOL = 24 mA 0.55 2.7 3.6 VI = VCC or GND ±0.1 ±1 µA 0 0 VIA = GND to 3.6 VIB = GND to 3.6 ±1.0 ±10 µA 1.4 1.4-3.6 1.4 - 3.6 0 0.5 5 µA 1.4 - 3.6 3.6 VIA = VCCA or GND VIB = VCCB or GND DIR = A to B 1.4 1.4-3.6 1.4 - 3.6 3.6 VIA = VCCA or GND VIB = VCCB or GND DIR = B to A 0.5 5 µA 3.6 3.6 VIOA = VCCA or GND ±0.5 ±5 µA V V V ST6G3237B Electrical characteristics 4.2 AC electrical characteristics Table 8. AC electrical characteristics f = 1MHz, 50% duty cycle, CL = 30pF, RL = 500Ω Test condition TA = -40 to 85 °C VCCA=1.8 ± 0.15V VCCA=1.8 ± 0.15V VCCA=2.5 ± 0.2V Symbol Unit Parameter VCCB=2.5 ± 0.2V tPLH tPHL tPZL tPZH tPLZ tPHZ VCCB=3.0 ± 0.3V VCCB=3.0 ± 0.3V Min. Max. Min. Max. Min. Max. Propagation delay time A to B (CMD) 1.0 3.7 1.0 3.8 1.0 3.6 Propagation delay time B to A (CMD) 1.0 3.6 1.0 3.9 1.0 3.6 Propagation delay time A to B (CLK) 1.0 3.2 1.0 3.4 1.0 3.2 Propagation delay time B to A (CLK-f) 1.0 7.6 1.0 7.7 1.0 7.5 Propagation delay time An to Bn (DATn) 1.0 6.2 1.0 6.2 1.0 6.2 Propagation delay time Bn to An (DATn) 1.0 5.3 1.0 5.3 1.0 5.3 Output enable time from An to Bn 1.0 2.9 1.0 3.0 1.0 2.9 Output enable time from Bn to An 1.0 4.3 1.0 4.5 1.0 4.2 Output disable time from An to Bn 1.0 7.8 1.0 8 1.0 7.8 ns ns ns Output disable time from Bn to An 1.0 5.4 1.0 5.5 1.0 5.3 tOSLH tOSHL Output to output skew time (note 1,2) 0.5 0.5 0.5 ns tCDLH tCDHL Clock and data skew time 0.5 0.5 0.5 ns From A to B 52 52 52 From B to A 52 52 52 From A to B 52 52 52 From B to A 52 52 52 Clock fmax MHz Data Mbps 9/16 Electrical characteristics 4.3 ST6G3237B Output slew rate Table 9. Output slew rate (f = 1MHz, 50% duty cycle, CL = 30pF, RL = 500Ω) VCCA = 1.8V ± 0.15V Symbol Parameter From VCCB = 3V ± 0.3V To Min. 4.4 Unit Max. tr Rise time 20% 80% 3 ns tf Fall time 80% 20% 3 ns Capacitance characteristics Table 10. Capacitance characteristics Test condition Symbol Value TA = 25 °C Parameter VCCB (V) Min. CINB Input capacitance CI/O Input/Output capacitance CPD (1) Power dissipation capacitance Unit VCCA (V) Typ. Max. Open Open 5 pF 3.0 1.8 6 pF 3.0 2.5 3.0 1.8 f=10MHz 29 pF 29 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) 10/16 ST6G3237B 5 Test circuit Test circuit Figure 3. Test circuit Table 11. Test values Test Switch tPLH, tPHL Open tPZL, tPLZ (VCC = 3.0 to 3.6V) 6V tPZL, tPLZ (VCC = 2.3 to 2.7V or VCC = 1.6 to 1.95V) 2VCC tPZH, tPHZ GND Table 12. Waveform symbol value VCC Symbol 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 VOL - 0.3V VOL - 0.15V VOL - 0.15V ● CL = 30pF or equivalent (includes jig and probe capacitance) ● RL = R1 = 500Ω or equivalent ● RT = ZOUT of pulse generator (typically 50Ω) 11/16 Test circuit ST6G3237B Figure 4. 12/16 Waveform - propagation delay (f = 1MHz, 50% duty cycle) ST6G3237B 6 Package mechanical data 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 13/16 Package mechanical data Table 13. ST6G3237B µTFBGA25 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 2.9 D1 E 0.86 30.7 3.0 3.1 114.2 118.1 122.0 3.0 3.1 114.2 118.1 122.0 2 2.9 3.0 33.9 78.8 3.1 114.2 118.1 E1 2 78.8 e 0.5 19.7 SE 0.25 9.8 Figure 5. 14/16 9.8 Package dimensions 122.0 ST6G3237B 7 Revision history Revision history Table 14. Revision history Date Revision 14-Jun-2007 1 Changes First release 15/16 ST6G3237B 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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