ST1G3234
1-bit dual supply bus buffer level translator with A-side series resistor
Features
High speed: tPD = 4.4ns (Max.) at TA = 85C VCCB = 1.65V; VCCA = 3.0V Low power dissipation: ICCA = ICCB = 5A(Max.) at TA = 85C Symmetrical output impedance: |IOHA| = IOLA = 10mA Min at VCCA = 2.75V; VCCB = 1.4V to 3.6V |IOHA| = IOLA = 6mA Min at VCCA = 2.3V; VCCB = 1.4V to 3.6V Balanced propagation delays: tPLH tPHL Power down protection on inputs and outputs 26 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: 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 (JESD 17) ESD performance: HBM > 2000V (MIL STD 883 method 3015); MM > 200V ROHS compliant for Flip-Chip package
Flip-Chip 5
Description
The ST1G3234 is a dual supply low voltage CMOS 1-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. All inputs are equipped with protection circuits against static discharge, giving them ESD immunity and transient excess voltage.
Order codes
Part number ST1G3234BJR Package Flip-Chip 5 Comments 4000 parts per reel
August 2006
Rev 6
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www.st.com 15
Contents
ST1G3234
Contents
1 Pin settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1 1.2 Pin connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 3
Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Maximum rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.1 Recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4 5 6 7 8
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
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Pin settings
1
1.1
Pin settings
Pin connection
Figure 1. Pin connection (top through view)
1.2
Pin description
Table 1. Pin description
Pin N A1 C1 B2 A3 C3 Symbol A1 B1 GND VCCA VCCB Name and function Data output (VCCA referred) Data input (VCCB referred) Ground (0V) Positive supply voltage Positive supply voltage
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Device summary
ST1G3234
2
Device summary
Figure 2. Input equivalent circuit
Figure 3.
Logic diagram
Table 2. Truth table
Inputs B1 (VCCB Referred) L H Outputs A1 (VCCA Referred) L H
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ST1G3234
Maximum rating
3
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 VCCA VCCB VOA VIB VOA VIB IIK IOK IOA ICCA ICCB Pd Tstg TL Output supply voltage Input supply voltage DC output voltage (power down mode: VCCA=VCCB=Gnd) DC input voltage (power down mode: VCCA=VCCB=Gnd) DC output voltage DC input voltage DC input diode current DC output diode current DC output current DC VCCA or ground current DC VCCB or ground current Power dissipation Storage temperature Lead temperature (10 sec) 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 VCCA + 0.5 -0.5 to + 4.6 -20 -50 50 100 100 200 -65 to +150 260 Unit V V V V V V mA mA mA mA mA mW C C
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Maximum rating
ST1G3234
3.1
Recommended operating conditions
Table 4. Recommended operating conditions
Symbol VCCA VCCB VIB VOA Top Supply voltage Supply voltage Input voltage (B1) Output voltage (A1) Operating temperature VCCB = 3.0 to 3.6V dt/dv Input Rise and Fall Time (1) VCCB = 2.3 to 2.7V VCCB = 1.4 to 1.95V
1. VI from 0.8V to 2.0V at VCC = 3.0V
Parameter
Value 1.4 to 3.6 1.4 to 3.6 0 to VCCB 0 to VCCA -40 to 85 0 to 10 0 to 20 0 to 100
Unit V V V V C ns/V ns/V ns/V
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Electrical characteristics
4
Electrical characteristics
Table 5. DC specification
Test condition Symbol Parameter VCCB VCCA (V)
(1)
Value TA = 25 C Min 0.65VCCB Max -40 to 85 C Min 0.65VCCB 0.65VCCB 1.6 2.0 0.35VCCB 0.35VCCB 0.35VCCB 0.7 0.8 1.2 2.2 V 1.8 1.4 1.1 0.20 0.40 0.55 0.40 0.25 0.20 0.5 0.5 1.0 0.5 0.5 1.8 1.4 1.1 0.20 0.40 0.55 V 0.40 0.25 0.20 5 5 10 5 5 A A A A A V V Max Unit
(V)(1)
1.4 VIHB High level input voltage 1.8 2.5 3.3 1.4 VILB Low level input voltage 1.8 2.5 3.3 1.4 2.75 VOHA High level output voltage 1.4 to 3.6V 2.3 1.65 1.4 1.4 2.75 VOLA Low level output 1.4 to voltage 3.6V 2.75 2.3 1.65 1.4 IIB Input leakage current Power OFF leakage current Quiescent supply current Quiescent supply current 2.7 1.4 0 3.6 2.7 0 IO=-100A IO=-10mA IO=-6mA IO=-2mA IO=-1mA IO=100A IO=1mA IO=10mA IO=6mA IO=2mA IO=1mA VIB =VCCB or GND VIB =3.6V or GND VIB=GND to 3.6V VOA=GND to 3.6V 1.4 to 3.6V 1.4 to 3.6V
0.65VCCB 1.6 2.0
0.35VCCB 0.7 0.8 1.2 2.2
IOFF ICCtB ICCtA
1.4 to 1.4 to VIB =VCCB or GND 3.6V 3.6V 1.4 to 1.4 to VIB =VCCB or GND 3.6V 3.6V
1. VCC range = 3.3 0.3; 2.5 0.2V; 1.8 0.15V
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Electrical characteristics
ST1G3234
Table 6. AC electrical characteristics
Test condition Symbol Parameter VCCB (V) 2.3 to 3.6 1.4 to 1.95 2.3 to 3.6 tPLH tPHL Propagation delay time B1 to A1 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 tPLH tPHL Propagation delay time B1 to A1 1.4 to 1.95 1.4 to 1.95 1.4 to 1.95 2.3 to 2.7 VCCA (V) 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 CL = 30 pF RL = 500 CL = 10 pF Value -40 to 85 C Min 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 Ma x 5.0 5.0 4.5 4.8 3.5 3.5 3.0 5.5 5.5 5.0 5.2 4.0 4.0 3.5 ns ns Unit
Table 7. Capacitance characteristics
Test condition Symbol Parameter VCCB VCCA (V) (V) open open 2.5 2.5 1.8 CPD Power dissipation capacitance 1.4 1.4 3.3 3.3 3.3 3.3 2.5 1.8 1.8 f = 10MHz Value TA = 25 C Min Typ 5 6 27 27 23 20 27 pF Max -40 to 85 C Min Max pF pF Unit
CINB CO
Input capacitance Output capacitance
Note:
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)
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ST1G3234
Test circuit
5
Test circuit
Figure 4. Test circuit
Table 8. Test circuit
Test tPLH, tPHL Switch Open
CL = 10/30pF or equivalent (includes jig and probe capacitance) RL = R1 = 500 or equivalent RT = ZOUT of pulse generator (typically 50)
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Waveforms
ST1G3234
6
Waveforms
Table 9. Waveform symbol value
Symbol 3.0 to 3.6V VIH VM VX VY VCC 1.5V VOL +0.3V VOL -0.3V VCC 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
Figure 5.
Waveform - propagation delay (f = 1MHz; 50% duty cycle)
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ST1G3234
Package mechanical data
7
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 6. Marking
Note:
X = Marking Area; Marking Code 9537
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Package mechanical data
ST1G3234
Flip-Chip 5 MECHANICAL DATA
mm. DIM. MIN. A A1 a2 b D D1 E E1 eD eE fD fE ccc 0 .383 0 .20 0 .97 0 .265 1 .31 0 .585 0 .21 TYP 0.65 0.25 0.40 0.31 5 1.36 0.86 6 1.02 0.5 0.43 3 0.25 0.24 7 0.26 0 0.08 0 0 .483 0.30 15. 1 7.9 1.07 38. 2 0 .365 1.41 10. 4 51. 6 MAX. 0 .715 0.29 MIN. 23. 0 8.3 TYP. 25.6 9.8 15.7 12.4 53.5 34.1 40.2 19.7 17.0 9.8 9.7 10.2 3.1 19. 0 11. 8 42. 1 14. 4 55. 5 MAX. 28. 1 11. 4 mils
72 24716 F
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Package mechanical data
Tape & Reel Flip-Chip 5 MECHANICAL DATA
mm. DIM. MIN. A C D N T Ao Bo Ko Po P 1.60 1.27 0.76 3.9 3.9 1.65 1.32 0.81 4 4 12.8 20.2 49 50 51 12.4 1.70 1.37 0.86 4.1 4.1 0.063 0.050 0.030 0.153 0.153 0.065 0.052 0.032 0.157 0.157 TYP M AX. 178 13.2 0.504 0.795 1.929 1.969 2.008 0.488 0.067 0.054 0.034 0.161 0.161 MIN. TYP. M AX . 6.926 0.519 inch
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Revision history
ST1G3234
8
Revision history
Table 10. Revision history
Date 14-Oct-2004 20-Dec-2004 11-Feb-2005 30-Mar-2005 09-May-2005 16-Aug-2006 Revision 1 2 3 4 5 6 First release. Revision on Table 3. Add Tape & Reel, Figures 2, 3, 5, 6, Table 3, 5, 7 and Mechanical Data has been modified. Add features ==> Max data rates. Table 7 and Table 8 have been updated. New template, updated test condition VOHA Table 5 Changes
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