ST4G3234 4-BIT DUAL SUPPLY BUS BUFFER LEVEL TRANSLATOR WITH A SIDE SERIES RESISTOR ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ HIGH SPEED: tPD = 4.4ns (MAX.) at TA=85°C VCCB = 1.65V; VCCA = 3.0V LOW POWER DISSIPATION: ICCA = ICCB = 5µA(MAX.) at TA=85°C SYMMETRICAL OUTPUT IMPEDANCE: |IOHA| = IOLA = 10mA MIN at VCCA = 3.0V; VCCB = 1.4V to 3.6V |IOHA| = IOLA = 8mA MIN at VCCA = 2.3V; VCCB = 1.4 to 3.6V) BALANCED PROPAGATION DELAYS: tPLH ≅ tPHL POWER DOWN PROTECTION ON INPUTS AND OUTPUTS 26Ω SERIES RESISTOR ON A SIDE OUTPUTS OPERATING VOLTAGE RANGE: VCCA(OPR) = 1.4V to 3.6V (1.2V Data Retent) VCCB(OPR) = 1.4V to 3.6V (1.2V Data Retent) MAX DATA RATES: 380 Mbps (1.8V to 3.3V translation) 260 Mbps (<1.8V to 3.3V translation) 260 Mbps (Translate to 2.5V) 210 Mbps (Translate to 1.5V) 100 Mbps (Translate to 1.2V) LATCH-UP PERFORMANCE EXCEEDS 500mA (JESD 17) ESD PERFORMANCE: HBM > 2000V (MIL STD 883 method 3015); MM > 200V ROHS Compliant for FLIPCHIP Package FLIPCHIP Table 1: Order Codes PACKAGE T&R Comments FLIPCHIP11 ST4G3234BJR 5000 parts per reel All inputs are equipped with protection circuits against static discharge, giving them ESD immunity and transient excess voltage. Figure 1: Logic Diagram DESCRIPTION The ST4G3234 is a dual supply low voltage CMOS 4-BIT BUS BUFFER level translator fabricated with sub-micron 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, 1.8V/1.4V and 2.5V/1.8V supply systems, it achieves high speed operation while maintaining the CMOS low power dissipation. This IC is intended for one-way asynchronous communication between data buses. The input and output power down protections disable the device when both power supply are down, so that the buses are effectively isolated. The input tolerant buffers allow to translate VCCB compatible signals and greater signals than VCCB up/down to VCCA. May 2005 Rev. 7 1/11 ST4G3234 Figure 2: Input And Output Equivalent Circuit Table 2: Pin Description PIN° SYMBOL A1 A3 A5 A7 C1 C3 C5 C7 B2 B6 A4 A3 A2 A1 B4 B3 B2 B1 GND VCCA Data Output Data Output Data Output Data Output Data Input Data Input Data Input Data Input Ground (0V) Positive Supply Voltage B4 VCCB Positive Supply Voltage Figure 3: Pin Connection (top through view) 2/11 NAME AND FUNCTION ST4G3234 Table 3: Truth Table INPUTS Bn (VCCB Referred) OUTPUTS Bn (VCCA Referred) L H L H Table 4: Absolute Maximum Ratings Symbol Parameter Value Unit VCCA Output Supply Voltage -0.5 to +4.6 V VCCB Input Supply Voltage -0.5 to +4.6 V VOA DC Output Voltage (Power Down Mode: VCCA=VCCB=Gnd) -0.5 to +4.6 V VIB DC Input Voltage (Power Down Mode: VCCA=VCCB=Gnd) -0.5 to +4.6 V VOA DC Output Voltage -0.5 to VCCA + 0.5 V VIB DC Input Voltage -0.5 to +4.6 V IIK DC Input Diode Current − 20 mA IOK DC Output Diode Current − 50 mA IOA DC Output Current ± 50 mA ICCA DC VCCA or Ground Current ± 100 mA ICCB DC VCCB or Ground Current ± 100 mA Pd Power Dissipation Tstg Storage Temperature TL Lead Temperature (10 sec) 400 mW -65 to +150 °C 260 °C Absolute Maximum Ratings are those value beyond which damage to the device may occur. Functional operation under these conditions is not implied Table 5: Recommended Operating Conditions Symbol Parameter Value Unit 1.4 to 3.6 V VCCA Supply Voltage VCCB Supply Voltage 1.4 to 3.6 V VIB Input Voltage (Bn) 0 to VCCB V VOA Output Voltage (An) Top Operating Temperature 0 to VCCA -40 to 85 °C Input Rise and Fall Time (note 1) dt/dv V VCCB = 3.0 to 3.6V 0 to 10 ns/V VCCB = 2.3 to 2.7V 0 to 20 ns/V VCCB = 1.4 to 1.95V 0 to 100 ns/V 1) VI from 0.8V to 2.0V at VCC = 3.0V 3/11 ST4G3234 Table 6: DC Specification Test Condition Symbol VIHB VILB Parameter High Level Input Voltage (Bn) Low Level Input Voltage (Bn) 2.5 3.3 1.4 1.8 High Level Output Voltage 1.4 to 3.6V VOLA Low Level Output Voltage 1.4 to 3.6V IIB Input Leakage Current Min. 1.4 2.5 3.3 VOHA TA = 25 °C VCCB VCCA (V)(*) (V)(*) 1.8 Value 1.4 to 3.6V Typ. -40 to 85 °C Max. Min. 0.65VCCB 0.65VCCB 0.65VCCB 0.65VCCB 1.6 2.0 1.6 2.0 1.4 to 3.6V Unit Max. V 0.35VCCB 0.35VCCB 0.35VCCB 0.35VCCB 0.7 0.8 0.7 0.8 1.4 IO=-100µA 1.2 1.2 2.75 IO=-10mA 2.2 2.2 2.3 IO=-8mA 2.0 2.0 1.65 IO=-6mA 1.4 1.4 1.4 IO=-2mA 1.1 1.1 1.4 IO=100µA 0.2 0.2 2.75 IO=10mA 0.55 0.55 2.3 IO=8mA 0.30 0.30 1.65 IO=6mA 0.25 0.25 V V V 1.4 IO=2mA 0.20 0.20 2.7 3.6 VIB =VCCB or GND ± 0.5 ±5 1.4 2.7 VIB =3.6V or GND ± 0.5 ±5 µA 0 0 VIB=GND to 3.6V VOA=GND to 3.6V ± 1.0 ± 10 µA µA IOFF Power Off Leakage Current ICCtB Quiescent Supply Current 1.4 1.4 V =V IB CCB or GND to to 3.6V 3.6V 0.5 5 µA ICCtA Quiescent Supply Current 1.4 1.4 V =V IB CCB or GND to to 3.6V 3.6V 0.5 5 µA ∆ICCtB Maximum Quiescent Supply Current / Input (Bn) 2.7 1.95 1.95 0.75 mA 3.6 3.6 2.7 (*) VCC range = 3.3±0.3; 2.5±0.2V; 1.8±0.15V 4/11 VIB =VCCB - 0.6V VIB =VCCB or GND ST4G3234 Table 7: Dynamic Switching Characteristics Test Condition Symbol VOLPA VOLVA VOHVA Parameter Dynamic Low Level Quiet An Output Dynamic Low Level Quiet An Output Dynamic High Level Quiet An Output VCCB (V) VCCA (V) 1.4 1.4-1.8 1.8-2.5 1.4 1.4-1.8 1.8-2.5 1.4 1.4-1.8 1.8-2.5 1.8 2.5 3.3 1.8 2.5 3.3 1.8 2.5 3.3 Value TA = 25 °C Min. CL =30pF VIL =0V VIH =VCC CL =30pF VIL =0V VIH =VCC CL =30pF VIL =0V VIH =VCC Typ. Max. -40 to 85 °C Min. Unit Max. 0.2 0.25 0.35 -0.2 -0.25 -0.35 1.6 2.1 2.7 V V V Table 8: AC Electrical Characteristics Test Condition Symbol tPLH tPHL tPLH tPHL tOSLH tOSHL Parameter Propagation Delay Time Bn to An Propagation Delay Time Bn to An Output To Output Skew Time (note1, 2) VCCB (V) VCCA (V) 2.3 to 3.6 1.4 to 1.95 2.3 to 3.6 1.4 to 1.95 1.4 to 1.95 1.4 to 1.95 2.3 to 2.7 2.3 to 3.6 1.4 to 1.95 2.3 to 3.6 1.4 to 1.95 1.4 to 1.95 1.4 to 1.95 2.3 to 2.7 1.8 ± 0.15 1.8 ± 0.15 2.5 ± 0.2 1.4 1.4 1.65 to 1.95 1.65 to 1.95 2.3 to 2.7 3.0 to 3.6 3.0 to 3.6 1.4 1.4 1.65 to 1.95 1.65 to 1.95 2.3 to 2.7 3.0 to 3.6 3.0 to 3.6 2.5 ± 0.2 3.3 ± 0.3 3.3 ± 0.3 Value -40 to 85 °C CL = 10 pF CL = 30 pF RL = 500 Ω CL = 30 pF RL = 500 Ω Min. Max. 2.0 2.0 2.0 2.0 2.0 2.0 1.0 2.0 2.0 2.0 2.0 2.0 2.0 1.0 5.5 5.5 5.0 5.2 4.6 4.3 3.5 7.5 7.9 6.0 6.5 5.7 5.2 4.6 0.5 0.5 0.75 Unit ns ns ns 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 5/11 ST4G3234 Table 9: Capacitance Characteristics Test Condition Symbol CINB Parameter Input Capacitance Value TA = 25 °C VCCB VCCA (V) (V) open open CO Output Capacitance 2.5 3.3 CPD Power Dissipation Capacitance 2.5 1.8 1.4 1.4 3.3 3.3 3.3 2.5 1.8 1.8 Min. f=10MHz Typ. Max. -40 to 85 °C Min. Unit Max. 7 pF 9 pF 28 28 25 21 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/4 (per circuit) Figure 4: Test Circuit TEST SWITCH tPLH, tPHL Open CL = 30pF or equivalent (includes jig and probe capacitance) RL = R1 = 500Ω or equivalent RT = ZOUT of pulse generator (typically 50Ω) Table 10: Waveform Symbol Value VCC Symbol 3.0 to 3.6V 6/11 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 ST4G3234 Figure 5: Waveform - Propagation Delay (f=1MHz; 50% duty cycle) Figure 6: Marking NOTE: E = Eco Level; Y = Assy Year; WW = Assy Week; X = Marking Area; Marking Code 9521 7/11 ST4G3234 Flip-Chip11 MECHANICAL DATA mm. mils DIM. MIN. TYP MAX. MIN. TYP. MAX. A 0.585 0.65 0.715 23.0 25.6 28.1 A1 0.21 0.25 0.29 8.3 9.8 11.4 A2 0.40 15.7 b 0.265 0.315 0.365 10.4 12.4 14.4 D 1.99 2.04 2.09 78.3 80.3 82.3 D1 E 1.5 1.36 E1 1.41 59.1 1.46 53.5 0.866 55.5 57.5 34.1 eD 0.2 0.25 0.30 7.9 9.8 11.8 eE 0.383 0.433 0.483 15.1 17.0 19.0 fD 0.270 10.6 fE 0.272 10.7 ccc 0.080 3.1 7224724E 8/11 ST4G3234 Tape & Reel Flip-Chip 11 MECHANICAL DATA mm. inch DIM. MIN. TYP A MAX. MIN. TYP. 178 C 12.8 D 20.2 N 49 13.2 MAX. 6.926 0.504 0.519 0.795 50 T 51 1.929 1.969 12.4 2.008 0.488 Ao 2.29 2.34 2.39 0.090 0.092 0.094 Bo 1.65 1.70 1.75 0.065 0.067 0.069 Ko 0.76 0.81 0.86 0.030 0.032 0.034 Po 3.9 4 4.1 0.153 0.157 0.161 P 3.9 4 4.1 0.153 0.157 0.161 9/11 ST4G3234 Table 11: Revision History Date Revision 14-Oct-2004 26-Oct-2004 1 2 18-Nov-2004 3 First Release. Mechanical Data has been updated. Mistake VOHA on table 6. 11-Feb-2005 18-Feb-2005 18-Mar-2005 09-May-2005 4 5 6 7 Add Tape & Reel and Figure 6. Table 1 has been updated from 4000 to 5000 parts per Reel. Add Features ==> Max Data Rates. Table 8 and Table 9 have been updated. 10/11 Description of Changes ST4G3234 Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. 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