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GTL2002
2-bit bidirectional low voltage translator
Rev. 07 -- 2 July 2009 Product data sheet
1. General description
The Gunning Transceiver Logic - Transceiver Voltage Clamps (GTL-TVC) provide high-speed voltage translation with low ON-state resistance and minimal propagation delay. The GTL2002 provides 2 NMOS pass transistors (Sn and Dn) with a common gate (GREF) and a reference transistor (SREF and DREF). The device allows bidirectional voltage translations between 1.0 V and 5.0 V without use of a direction pin. When the Sn or Dn port is LOW the clamp is in the ON-state and a low resistance connection exists between the Sn and Dn ports. Assuming the higher voltage is on the Dn port, when the Dn port is HIGH, the voltage on the Sn port is limited to the voltage set by the reference transistor (SREF). When the Sn port is HIGH, the Dn port is pulled to VCC by the pull-up resistors. This functionality allows a seamless translation between higher and lower voltages selected by the user, without the need for directional control. All transistors have the same electrical characteristics and there is minimal deviation from one output to another in voltage or propagation delay. This is a benefit over discrete transistor voltage translation solutions, since the fabrication of the transistors is symmetrical. Because all transistors in the device are identical, SREF and DREF can be located on any of the other two matched Sn/Dn transistors, allowing for easier board layout. The translator's transistors provide excellent ESD protection to lower voltage devices and at the same time protect less ESD-resistant devices.
2. Features
I 2-bit bidirectional low voltage translator I Allows voltage level translation between 1.0 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.3 V and 5 V buses, which allows direct interface with GTL, GTL+, LVTTL/TTL and 5 V CMOS levels I Provides bidirectional voltage translation with no direction pin I Low 6.5 ON-state resistance (Ron) between input and output pins (Sn/Dn) I Supports hot insertion I No power supply required; will not latch up I 5 V tolerant inputs I Low standby current I Flow-through pinout for ease of printed-circuit board trace routing I ESD protection exceeds 2000 V HBM per JESD22-A114, 150 V MM per JESD22-A115, and 1000 V CDM per JESD22-C101 I Packages offered: SO8, TSSOP8 (MSOP8), VSSOP8, XQFN8U
NXP Semiconductors
GTL2002
2-bit bidirectional low voltage translator
3. Applications
I Any application that requires bidirectional or unidirectional voltage level translation from any voltage between 1.0 V and 5.0 V to any voltage between 1.0 V and 5.0 V I The open-drain construction with no direction pin is ideal for bidirectional low voltage (e.g., 1.0 V, 1.2 V, 1.5 V, or 1.8 V) processor I2C-bus port translation to the normal 3.3 V or 5.0 V I2C-bus signal levels or GTL/GTL+ translation to LVTTL/TTL signal levels.
4. Ordering information
Table 1. Ordering information Package Name GTL2002D GTL2002DP GTL2002DP/Q900[2] GTL2002DC GTL2002GM SO8 TSSOP8[1] TSSOP8[1] VSSOP8 XQFN8U Description plastic small outline package; 8 leads; body width 3.9 mm plastic thin shrink small outline package; 8 leads; body width 3 mm plastic thin shrink small outline package; 8 leads; body width 3 mm plastic very thin shrink small outline package; 8 leads; body width 2.3 mm plastic extremely thin quad flat package; no leads; 8 terminals; UTLP based; body 1.6 x 1.6 x 0.5 mm Version SOT96-1 SOT505-1 SOT505-1 SOT765-1 SOT902-1 Type number
[1] [2]
Also known as MSOP8. GTL2002DP/Q900 is AEC-Q100 compliant. Contact i2c.support@nxp.com for PPAP.
4.1 Ordering options
Table 2. GTL2002D GTL2002DP GTL2002DP/Q900 GTL2002DC GTL2002GM
[1]
Ordering options Topside mark GTL2002 2002 2002 2002 G2X[1] Temperature range Tamb = -40 C to +85 C Tamb = -40 C to +85 C Tamb = -40 C to +85 C Tamb = -40 C to +85 C Tamb = -40 C to +85 C
Type number
`X' will change based on date code.
GTL2002_7
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Product data sheet
Rev. 07 -- 2 July 2009
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GTL2002
2-bit bidirectional low voltage translator
5. Functional diagram
DREF GREF D1 D2
SREF
S1
S2
002aac784
Fig 1.
Functional diagram
6. Pinning information
6.1 Pinning
GTL2002DP GTL2002DP/Q900
GND SREF S1 S2 1 2 8 7 GREF GND DREF D1 D2 1 2 3 4
002aac778
8 7 6 5
GREF DREF D1 D2
GTL2002D
3 4
002aac777
SREF S1 S2
6 5
Fig 2.
Pin configuration for SO8
Fig 3.
Pin configuration for TSSOP8 (MSOP8)
GREF 1 8
terminal 1 index area GND
7
DREF
GTL2002GM
SREF SREF S1 S2 GND 1 2 3 4
002aac779
2
6
D1
8
GREF 4 DREF D1 D2 S2
002aac780
GTL2002DC
7 6 5
S1
3
5
D2
Transparent top view
Fig 4.
Pin configuration for VSSOP8
Fig 5.
Pin configuration for XQFN8U
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Product data sheet
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GTL2002
2-bit bidirectional low voltage translator
6.2 Pin description
Table 3. Symbol Pin description Pin SO8, TSSOP8, VSSOP8 XQFN8U GND SREF S1 S2 D2 D1 DREF GREF 1 2 3 4 5 6 7 8 4 1 2 3 5 6 7 8 ground (0 V) source of reference transistor port S1 port S2 port D2 port D1 drain of reference transistor gate of reference transistor Description
7. Functional description
Refer to Figure 1 "Functional diagram".
7.1 Function selection
Table 4. Function selection, HIGH to LOW translation Assuming Dn is at the higher voltage level. H = HIGH voltage level; L = LOW voltage level; X = Don't care. GREF[1] H H H L
[1] [2] [3] [4]
DREF H H H L
SREF 0V VTT VTT
[4] [4]
Input Dn X H L X
Output Sn X VTT L[3] X
[2][4]
Transistor off on on off
0 V - VTT[4]
GREF should be at least 1.5 V higher than SREF for best translator operation. Sn is not pulled up or pulled down. Sn follows the Dn input LOW. VTT is equal to the SREF voltage.
Table 5. Function selection, LOW to HIGH translation Assuming Dn is at the higher voltage level. H = HIGH voltage level; L = LOW voltage level; X = Don't care. GREF[1] H H H L
[1] [2] [3] [4]
GTL2002_7
DREF H H H L
SREF 0V VTT[4] VTT
[4] [4]
Input Sn X VTT[4] L X
Output Dn X H[2] L[3] X
Transistor off nearly off on off
0 V - VTT
GREF should be at least 1.5 V higher than SREF for best translator operation. Dn is pulled up to VCC through an external resistor. Dn follows the Sn input LOW. VTT is equal to the SREF voltage.
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Product data sheet
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GTL2002
2-bit bidirectional low voltage translator
8. Application design-in information
8.1 Bidirectional translation
For the bidirectional clamping configuration, higher voltage to lower voltage or lower voltage to higher voltage, the GREF input must be connected to DREF and both pins pulled to HIGH side VCC through a pull-up resistor (typically 200 k). A filter capacitor on DREF is recommended. The processor output can be totem pole or open-drain (pull-up resistors may be required) and the chip set output can be totem pole or open-drain (pull-up resistors are required to pull the Dn outputs to VCC). However, if either output is totem pole, data must be unidirectional or the outputs must be 3-stateable and the outputs must be controlled by some direction control mechanism to prevent HIGH-to-LOW contentions in either direction. If both outputs are open-drain, no direction control is needed. The opposite side of the reference transistor (SREF) is connected to the processor core power supply voltage. When DREF is connected through a 200 k resistor to a 3.3 V to 5.5 V VCC supply and SREF is set between 1.0 V to (VCC - 1.5 V), the output of each Sn has a maximum output voltage equal to SREF and the output of each Dn has a maximum output voltage equal to VCC.
1.8 V 1.5 V 1.2 V 1.0 V GND VCORE CPU I/O S2 SREF S1
5V
200 k
totem pole or open-drain I/O GREF DREF D1 CHIPSET I/O D2 VCC
increase bit size by using 10-bit GTL2010 or 22-bit GTL2000 VCC S3 S4 S5 Sn D3
3.3 V
CHIPSET I/O D4 D5 Dn
002aac060
Typical bidirectional voltage translation.
Fig 6.
Bidirectional translation to multiple higher voltage levels such as an I2C-bus application
GTL2002_7
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Product data sheet
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GTL2002
2-bit bidirectional low voltage translator
8.2 Unidirectional down translation
For unidirectional clamping, higher voltage to lower voltage, the GREF input must be connected to DREF and both pins pulled to the higher side VCC through a pull-up resistor (typically 200 k). A filter capacitor on DREF is recommended. Pull-up resistors are required if the chip set I/O are open-drain. The opposite side of the reference transistor (SREF) is connected to the processor core supply voltage. When DREF is connected through a 200 k resistor to a 3.3 V to 5.5 V VCC supply and SREF is set between 1.0 V to (VCC - 1.5 V), the output of each Sn has a maximum output voltage equal to SREF.
1.8 V 1.5 V 1.2 V 1.0 V easy migration to lower voltage as processor geometry shrinks VCORE CPU I/O S2 GND SREF S1
5V
200 k
GREF DREF D1 CHIPSET I/O D2 totem pole I/O
002aac061
VCC
Typical unidirectional HIGH-to-LOW voltage translation.
Fig 7.
Unidirectional down translation to protect low voltage processor pins
8.3 Unidirectional up translation
For unidirectional up translation, lower voltage to higher voltage, the reference transistor is connected the same as for a down translation. A pull-up resistor is required on the higher voltage side (Dn or Sn) to get the full HIGH level, since the GTL-TVC device will only pass the reference source (SREF) voltage as a HIGH when doing an up translation. The driver on the lower voltage side only needs pull-up resistors if it is open-drain.
1.8 V 1.5 V 1.2 V 1.0 V easy migration to lower voltage as processor geometry shrinks VCORE CPU I/O S2 totem pole I/O or open-drain GND SREF S1
5V
200 k
GREF DREF D1 CHIPSET I/O D2 VCC
002aac062
Typical unidirectional LOW-to-HIGH voltage translation.
Fig 8.
Unidirectional up translation to higher voltage chip sets
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Product data sheet
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GTL2002
2-bit bidirectional low voltage translator
8.4 Sizing pull-up resistor
The pull-up resistor value needs to limit the current through the pass transistor when it is in the ON state to about 15 mA. This will guarantee a pass voltage of 260 mV to 350 mV. If the current through the pass transistor is higher than 15 mA, the pass voltage will also be higher in the ON state. To set the current through each pass transistor at 15 mA, the pull-up resistor value is calculated as shown in Equation 1: pull-up voltage ( V ) - 0.35 V resistor value ( ) = --------------------------------------------------------------------------0.015 A (1)
Table 6 summarizes resistor values for various reference voltages and currents at 15 mA and also at 10 mA and 3 mA. The resistor value shown in the +10 % column or a larger value should be used to ensure that the pass voltage of the transistor would be 350 mV or less. The external driver must be able to sink the total current from the resistors on both sides of the GTL-TVC device at 0.175 V, although the 15 mA only applies to current flowing through the GTL-TVC device. See application note AN10145, "Bidirectional low voltage translators" for more information.
Table 6. Voltage 5.0 V 3.3 V 2.5 V 1.8 V 1.5 V 1.2 V
[1] [2] [3]
Pull-up resistor values Pull-up resistor value ()[1] 15 mA[2] Nominal 310 197 143 97 77 57 + 10 341 217 158 106 85 63 %[3] 465 295 215 145 115 85 10 mA[2] Nominal + 10 512 325 237 160 127 94 %[3] 1550 983 717 483 383 283 3 mA[2] Nominal + 10 %[3] 1705 1082 788 532 422 312
Calculated for VOL = 0.35 V. Assumes output driver VOL = 0.175 V at stated current. + 10 % to compensate for VDD range and resistor tolerance.
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Product data sheet
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GTL2002
2-bit bidirectional low voltage translator
9. Limiting values
Table 7. Limiting values[1] In accordance with the Absolute Maximum Rating System (IEC 60134). Symbol VSREF VDREF VGREF VSn VDn IREFK ISK IDK Imax Tstg
[1]
Parameter voltage on pin SREF voltage on pin DREF voltage on pin GREF voltage on port Sn voltage on port Dn
Conditions
[2] [2] [2] [2] [2]
Min -0.5 -0.5 -0.5 -0.5 -0.5 -65
Max +7.0 +7.0 +7.0 +7.0 +7.0 -50 -50 -50 128 +150
Unit V V V V V mA mA mA mA C
diode current on reference pins VI < 0 V diode current port Sn diode current port Dn clamp current per channel storage temperature VI < 0 V VI < 0 V channel in ON state
The performance capability of a high-performance integrated circuit in conjunction with its thermal environment can create junction temperature which are detrimental to reliability. The maximum junction temperature of this integrated circuit should not exceed 150 C. The input and output negative voltage ratings may be exceeded if the input and output clamp current ratings are observed.
[2]
10. Recommended operating conditions
Table 8. Symbol VI/O VSREF VDREF VGREF IPASS Tamb
[1]
Recommended operating conditions Parameter voltage on an input/output pin voltage on pin SREF voltage on pin DREF voltage on pin GREF pass transistor current ambient temperature operating in free air Conditions Sn, Dn
[1]
Min 0 0 0 0 -40
Max 5.5 5.5 5.5 5.5 64 +85
Unit V V V V mA C
VSREF VDREF - 1.5 V for best results in level shifting applications.
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Product data sheet
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GTL2002
2-bit bidirectional low voltage translator
11. Static characteristics
Table 9. Static characteristics Tamb = -40 C to +85 C, unless otherwise specified. Symbol VOL Parameter LOW-level output voltage Conditions VDD = 3.0 V; VSREF = 1.365 V; VSn or VDn = 0.175 V; Iclamp = 15.2 mA II = -18 mA; VGREF = 0 V VI = 5 V; VGREF = 0 V pin GREF; VI = 3 V or 0 V VO = 3 V or 0 V; VGREF = 0 V VO = 3 V or 0 V; VGREF = 3 V VI = 0 V; IO = 64 mA VGREF = 4.5 V VGREF = 3 V VGREF = 2.3 V VGREF = 1.5 V VI = 0 V; IO = 30 mA; VGREF = 1.5 V VI = 2.4 V; IO = 15 mA; VGREF = 4.5 V VI = 2.4 V; IO = 15 mA; VGREF = 3 V VI = 1.7 V; IO = 15 mA; VGREF = 2.3 V
[1] [2] [3] All typical values are measured at Tamb = 25 C. Cio(on) maximum of 30 pF and Cio(off) maximum of 15 pF is guaranteed by design. Measured by the voltage drop between the Sn and the Dn terminals at the indicated current through the switch. ON-state resistance is determined by the lowest voltage of the two (Sn or Dn) terminals.
[3] [2] [2] [3]
Min -
Typ[1] 260
Max 350
Unit mV
VIK ILI(gate) Cig Cio(off) Cio(on) Ron
input clamping voltage gate input leakage current input capacitance at gate off-state input/output capacitance on-state input/output capacitance ON-state resistance
-
19.4 7.4 18.6 3.5 4.4 5.5 67 9 7 58 50
-1.2 5 5 7 9 105 15 10 80 70
V A pF pF pF
[3]
[3]
[3]
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Product data sheet
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GTL2002
2-bit bidirectional low voltage translator
12. Dynamic characteristics
12.1 Dynamic characteristics for translator-type application
Table 10. Dynamic characteristics for translator-type application Tamb = -40 C to +85 C; Vref = 1.365 V to 1.635 V; VDD1 = 3.0 V to 3.6 V; VDD2 = 2.36 V to 2.64 V; GND = 0 V; tr = tf 3.0 ns. Refer to Figure 11. Symbol tPLH tPHL
[1] [2]
Parameter LOW to HIGH propagation delay HIGH to LOW propagation delay
Conditions Sn to Dn; Dn to Sn Sn to Dn; Dn to Sn
[2]
Min 0.5 0.5
Typ[1] 1.5 1.5
Max 5.5 5.5
Unit ns ns
[2]
All typical values are measured at VDD1 = 3.3 V, VDD2 = 2.5 V; Vref = 1.5 V and Tamb = 25 C. Propagation delay guaranteed by characterization.
VI input VM VM GND tPHL0 test jig output HIGH-to-LOW, LOW-to-HIGH VM tPHL tPHL1 DUT output HIGH-to-LOW, LOW-to-HIGH VM tPLH1 VM VOL
002aac789
tPLH0 VDD2 VM tPLH VOL VDD2
VM = 1.5 V; VI = GND to 3.0 V.
Fig 9.
The input (Sn) to output (Dn) propagation delays
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2-bit bidirectional low voltage translator
12.2 Dynamic characteristics for CBT-type application
Table 11. Dynamic characteristics for CBT-type application Tamb = -40 C to +85 C; VGREF = 5 V 0.5 V; GND = 0 V; tr = tf 3.0 ns; CL = 50 pF. Symbol tPD
[1]
Parameter propagation delay
Conditions
[1]
Min -
Typ -
Max 250
Unit ps
This parameter is warranted by the ON-state resistance at GREF = 4.5 V, but is not directly production tested. The propagation delay is based on the RC time constant of the typical ON-state resistance of the switch and a load capacitance of 50 pF, when driven by an ideal voltage source (zero output impedance).
3.0 V input 1.5 V tPLH 1.5 V 0V tPHL VOH output 1.5 V 1.5 V VOL
002aab664
tPD = the maximum of tPLH or tPHL. VM = 1.5 V; VI = GND to 3.0 V.
Fig 10. Input (Sn) to output (Dn) propagation delays
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2-bit bidirectional low voltage translator
13. Test information
VDD1
200 k
VDD2
150 k
VDD2
150 k
VDD2
150 k
DREF
GREF
D1
D2 DUT
SREF
S1
S2 test jig
Vref pulse generator
002aac790
Fig 11. Load circuit for translator-type applications
RL
S1
from output under test
CL 50 pF
500 RL 500
7V open GND
002aab667
Test data are given in Table 12. CL = load capacitance; includes jig and probe capacitance. RL = load resistance.
Fig 12. Load circuit for CBT-type application Table 12. Test tPD Test data Load CL 50 pF RL 500 open Switch
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GTL2002
2-bit bidirectional low voltage translator
14. Package outline
SO8: plastic small outline package; 8 leads; body width 3.9 mm SOT96-1
D
E
A X
c y HE vMA
Z 8 5
Q A2 A1 pin 1 index Lp 1 e bp 4 wM L detail X (A 3) A
0
2.5 scale
5 mm
DIMENSIONS (inch dimensions are derived from the original mm dimensions) UNIT mm inches Notes 1. Plastic or metal protrusions of 0.15 mm (0.006 inch) maximum per side are not included. 2. Plastic or metal protrusions of 0.25 mm (0.01 inch) maximum per side are not included. OUTLINE VERSION SOT96-1 REFERENCES IEC 076E03 JEDEC MS-012 JEITA EUROPEAN PROJECTION A max. 1.75 0.069 A1 0.25 0.10 A2 1.45 1.25 A3 0.25 0.01 bp 0.49 0.36 c 0.25 0.19 D (1) 5.0 4.8 0.20 0.19 E (2) 4.0 3.8 0.16 0.15 e 1.27 0.05 HE 6.2 5.8 L 1.05 Lp 1.0 0.4 Q 0.7 0.6 v 0.25 0.01 w 0.25 0.01 y 0.1 0.004 Z (1) 0.7 0.3 0.028 0.012
0.010 0.057 0.004 0.049
0.019 0.0100 0.014 0.0075
0.244 0.039 0.028 0.041 0.228 0.016 0.024
8o o 0
ISSUE DATE 99-12-27 03-02-18
Fig 13. Package outline SOT96-1 (SO8)
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GTL2002
2-bit bidirectional low voltage translator
TSSOP8: plastic thin shrink small outline package; 8 leads; body width 3 mm
SOT505-1
D
E
A
X
c y HE vMA
Z
8
5
A2 pin 1 index
A1
(A3)
A
Lp L
1
e bp
4
detail X wM
0
2.5 scale
5 mm
DIMENSIONS (mm are the original dimensions) UNIT mm A max. 1.1 A1 0.15 0.05 A2 0.95 0.80 A3 0.25 bp 0.45 0.25 c 0.28 0.15 D(1) 3.1 2.9 E(2) 3.1 2.9 e 0.65 HE 5.1 4.7 L 0.94 Lp 0.7 0.4 v 0.1 w 0.1 y 0.1 Z(1) 0.70 0.35 6 0
Notes 1. Plastic or metal protrusions of 0.15 mm maximum per side are not included. 2. Plastic or metal protrusions of 0.25 mm maximum per side are not included. OUTLINE VERSION SOT505-1 REFERENCES IEC JEDEC JEITA EUROPEAN PROJECTION ISSUE DATE 99-04-09 03-02-18
Fig 14. Package outline SOT505-1 (TSSOP8)
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GTL2002
2-bit bidirectional low voltage translator
VSSOP8: plastic very thin shrink small outline package; 8 leads; body width 2.3 mm
SOT765-1
D
E
A X
c y HE vMA
Z
8
5
Q A pin 1 index A2 A1 (A3) Lp L
1
e bp
4
wM
detail X
0
2.5 scale
5 mm
DIMENSIONS (mm are the original dimensions) UNIT mm A max. 1 A1 0.15 0.00 A2 0.85 0.60 A3 0.12 bp 0.27 0.17 c 0.23 0.08 D(1) 2.1 1.9 E(2) 2.4 2.2 e 0.5 HE 3.2 3.0 L 0.4 Lp 0.40 0.15 Q 0.21 0.19 v 0.2 w 0.13 y 0.1 Z(1) 0.4 0.1 8 0
Notes 1. Plastic or metal protrusions of 0.15 mm maximum per side are not included. 2. Plastic or metal protrusions of 0.25 mm maximum per side are not included. OUTLINE VERSION SOT765-1 REFERENCES IEC JEDEC MO-187 JEITA EUROPEAN PROJECTION
ISSUE DATE 02-06-07
Fig 15. Package outline SOT765-1 (VSSOP8)
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2-bit bidirectional low voltage translator
XQFN8U: plastic extremely thin quad flat package; no leads; 8 terminals; UTLP based; body 1.6 x 1.6 x 0.5 mm
SOT902-1
D terminal 1 index area
B
A
E
A A1
detail X
L1 L
e
4
e v M C A B w M C
5
C y1 C y
3
metal area not for soldering
2 6
b
e1
e1
7 1
terminal 1 index area
8
X
0
1 scale
2 mm
DIMENSIONS (mm are the original dimensions) UNIT mm A max 0.5 A1 0.05 0.00 b 0.25 0.15 D 1.65 1.55 E 1.65 1.55 e 0.55 e1 0.5 L 0.35 0.25 L1 0.15 0.05 v 0.1 w 0.05 y 0.05 y1 0.05
OUTLINE VERSION SOT902-1
REFERENCES IEC --JEDEC MO-255 JEITA ---
EUROPEAN PROJECTION
ISSUE DATE 05-11-25 07-11-14
Fig 16. Package outline SOT902-1 (XQFN8U)
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2-bit bidirectional low voltage translator
15. Soldering of SMD packages
This text provides a very brief insight into a complex technology. A more in-depth account of soldering ICs can be found in Application Note AN10365 "Surface mount reflow soldering description".
15.1 Introduction to soldering
Soldering is one of the most common methods through which packages are attached to Printed Circuit Boards (PCBs), to form electrical circuits. The soldered joint provides both the mechanical and the electrical connection. There is no single soldering method that is ideal for all IC packages. Wave soldering is often preferred when through-hole and Surface Mount Devices (SMDs) are mixed on one printed wiring board; however, it is not suitable for fine pitch SMDs. Reflow soldering is ideal for the small pitches and high densities that come with increased miniaturization.
15.2 Wave and reflow soldering
Wave soldering is a joining technology in which the joints are made by solder coming from a standing wave of liquid solder. The wave soldering process is suitable for the following:
* Through-hole components * Leaded or leadless SMDs, which are glued to the surface of the printed circuit board
Not all SMDs can be wave soldered. Packages with solder balls, and some leadless packages which have solder lands underneath the body, cannot be wave soldered. Also, leaded SMDs with leads having a pitch smaller than ~0.6 mm cannot be wave soldered, due to an increased probability of bridging. The reflow soldering process involves applying solder paste to a board, followed by component placement and exposure to a temperature profile. Leaded packages, packages with solder balls, and leadless packages are all reflow solderable. Key characteristics in both wave and reflow soldering are:
* * * * * *
Board specifications, including the board finish, solder masks and vias Package footprints, including solder thieves and orientation The moisture sensitivity level of the packages Package placement Inspection and repair Lead-free soldering versus SnPb soldering
15.3 Wave soldering
Key characteristics in wave soldering are:
* Process issues, such as application of adhesive and flux, clinching of leads, board
transport, the solder wave parameters, and the time during which components are exposed to the wave
* Solder bath specifications, including temperature and impurities
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15.4 Reflow soldering
Key characteristics in reflow soldering are:
* Lead-free versus SnPb soldering; note that a lead-free reflow process usually leads to
higher minimum peak temperatures (see Figure 17) than a SnPb process, thus reducing the process window
* Solder paste printing issues including smearing, release, and adjusting the process
window for a mix of large and small components on one board
* Reflow temperature profile; this profile includes preheat, reflow (in which the board is
heated to the peak temperature) and cooling down. It is imperative that the peak temperature is high enough for the solder to make reliable solder joints (a solder paste characteristic). In addition, the peak temperature must be low enough that the packages and/or boards are not damaged. The peak temperature of the package depends on package thickness and volume and is classified in accordance with Table 13 and 14
Table 13. SnPb eutectic process (from J-STD-020C) Package reflow temperature (C) Volume (mm3) < 350 < 2.5 2.5 Table 14. 235 220 Lead-free process (from J-STD-020C) Package reflow temperature (C) Volume (mm3) < 350 < 1.6 1.6 to 2.5 > 2.5 260 260 250 350 to 2000 260 250 245 > 2000 260 245 245 350 220 220
Package thickness (mm)
Package thickness (mm)
Moisture sensitivity precautions, as indicated on the packing, must be respected at all times. Studies have shown that small packages reach higher temperatures during reflow soldering, see Figure 17.
GTL2002_7
(c) NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 07 -- 2 July 2009
18 of 22
NXP Semiconductors
GTL2002
2-bit bidirectional low voltage translator
temperature
maximum peak temperature = MSL limit, damage level
minimum peak temperature = minimum soldering temperature
peak temperature
time
001aac844
MSL: Moisture Sensitivity Level
Fig 17. Temperature profiles for large and small components
For further information on temperature profiles, refer to Application Note AN10365 "Surface mount reflow soldering description".
16. Abbreviations
Table 15. Acronym CBT CDM CMOS CPU ESD GTL HBM I/O I2C-bus LVTTL MM NMOS RC TTL TVC Abbreviations Description Cross Bar Technology Charged-Device Model Complementary Metal-Oxide Semiconductor Central Processing Unit ElectroStatic Discharge Gunning Transceiver Logic Human Body Model Input/Output Inter-Integrated Circuit bus Low Voltage Transistor-Transistor Logic Machine Model Negative-channel Metal-Oxide Semiconductor Resistor Capacitor network Transistor-Transistor Logic Transceiver Voltage Clamps
GTL2002_7
(c) NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 07 -- 2 July 2009
19 of 22
NXP Semiconductors
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2-bit bidirectional low voltage translator
17. Revision history
Table 16. Revision history Release date 20090702 Data sheet status Product data sheet Change notice Supersedes GTL2002_6 Document ID GTL2002_7 Modifications:
* * * * *
Table 1 "Ordering information": added type number GTL2002DP/Q900 Table 2 "Ordering options": added type number GTL2002DP/Q900 Figure 3 "Pin configuration for TSSOP8 (MSOP8)": added type number GTL2002DP/Q900 Table 8 "Recommended operating conditions": deleted (empty) Typ column updated soldering information Product data sheet Product data sheet Product data sheet Product data sheet Product data Product specification ECN 853-2214 29603 dated 2003 Feb 28 ECN 853-2214 24367 dated 2000 Aug 16 GTL2002_5 GTL2002_4 GTL2002_3 GTL2002_2 GTL2002_1 -
GTL2002_6 GTL2002_5 GTL2002_4 GTL2002_3 (9397 750 13058) GTL2002_2 (9397 750 11349) GTL2002_1 (9397 750 07417)
20071221 20070813 20060829 20040929 20030401 20000216
GTL2002_7
(c) NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 07 -- 2 July 2009
20 of 22
NXP Semiconductors
GTL2002
2-bit bidirectional low voltage translator
18. Legal information
18.1 Data sheet status
Document status[1][2] Objective [short] data sheet Preliminary [short] data sheet Product [short] data sheet
[1] [2] [3]
Product status[3] Development Qualification Production
Definition This document contains data from the objective specification for product development. This document contains data from the preliminary specification. This document contains the product specification.
Please consult the most recently issued document before initiating or completing a design. The term `short data sheet' is explained in section "Definitions". The product status of device(s) described in this document may have changed since this document was published and may differ in case of multiple devices. The latest product status information is available on the Internet at URL http://www.nxp.com.
18.2 Definitions
Draft -- The document is a draft version only. The content is still under internal review and subject to formal approval, which may result in modifications or additions. NXP Semiconductors does not give any representations or warranties as to the accuracy or completeness of information included herein and shall have no liability for the consequences of use of such information. Short data sheet -- A short data sheet is an extract from a full data sheet with the same product type number(s) and title. A short data sheet is intended for quick reference only and should not be relied upon to contain detailed and full information. For detailed and full information see the relevant full data sheet, which is available on request via the local NXP Semiconductors sales office. In case of any inconsistency or conflict with the short data sheet, the full data sheet shall prevail.
damage. NXP Semiconductors accepts no liability for inclusion and/or use of NXP Semiconductors products in such equipment or applications and therefore such inclusion and/or use is at the customer's own risk. Applications -- Applications that are described herein for any of these products are for illustrative purposes only. NXP Semiconductors makes no representation or warranty that such applications will be suitable for the specified use without further testing or modification. Limiting values -- Stress above one or more limiting values (as defined in the Absolute Maximum Ratings System of IEC 60134) may cause permanent damage to the device. Limiting values are stress ratings only and operation of the device at these or any other conditions above those given in the Characteristics sections of this document is not implied. Exposure to limiting values for extended periods may affect device reliability. Terms and conditions of sale -- NXP Semiconductors products are sold subject to the general terms and conditions of commercial sale, as published at http://www.nxp.com/profile/terms, including those pertaining to warranty, intellectual property rights infringement and limitation of liability, unless explicitly otherwise agreed to in writing by NXP Semiconductors. In case of any inconsistency or conflict between information in this document and such terms and conditions, the latter will prevail. No offer to sell or license -- Nothing in this document may be interpreted or construed as an offer to sell products that is open for acceptance or the grant, conveyance or implication of any license under any copyrights, patents or other industrial or intellectual property rights. Export control -- This document as well as the item(s) described herein may be subject to export control regulations. Export might require a prior authorization from national authorities.
18.3 Disclaimers
General -- Information in this document is believed to be accurate and reliable. However, NXP Semiconductors does not give any representations or warranties, expressed or implied, as to the accuracy or completeness of such information and shall have no liability for the consequences of use of such information. Right to make changes -- NXP Semiconductors reserves the right to make changes to information published in this document, including without limitation specifications and product descriptions, at any time and without notice. This document supersedes and replaces all information supplied prior to the publication hereof. Suitability for use -- NXP Semiconductors products are not designed, authorized or warranted to be suitable for use in medical, military, aircraft, space or life support equipment, nor in applications where failure or malfunction of an NXP Semiconductors product can reasonably be expected to result in personal injury, death or severe property or environmental
18.4 Trademarks
Notice: All referenced brands, product names, service names and trademarks are the property of their respective owners.
19. Contact information
For more information, please visit: http://www.nxp.com For sales office addresses, please send an email to: salesaddresses@nxp.com
GTL2002_7
(c) NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 07 -- 2 July 2009
21 of 22
NXP Semiconductors
GTL2002
2-bit bidirectional low voltage translator
20. Contents
1 2 3 4 4.1 5 6 6.1 6.2 7 7.1 8 8.1 8.2 8.3 8.4 9 10 11 12 12.1 12.2 13 14 15 15.1 15.2 15.3 15.4 16 17 18 18.1 18.2 18.3 18.4 19 20 General description . . . . . . . . . . . . . . . . . . . . . . 1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Ordering information . . . . . . . . . . . . . . . . . . . . . 2 Ordering options . . . . . . . . . . . . . . . . . . . . . . . . 2 Functional diagram . . . . . . . . . . . . . . . . . . . . . . 3 Pinning information . . . . . . . . . . . . . . . . . . . . . . 3 Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 4 Functional description . . . . . . . . . . . . . . . . . . . 4 Function selection. . . . . . . . . . . . . . . . . . . . . . . 4 Application design-in information . . . . . . . . . . 5 Bidirectional translation. . . . . . . . . . . . . . . . . . . 5 Unidirectional down translation. . . . . . . . . . . . . 6 Unidirectional up translation . . . . . . . . . . . . . . . 6 Sizing pull-up resistor . . . . . . . . . . . . . . . . . . . . 7 Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . . 8 Recommended operating conditions. . . . . . . . 8 Static characteristics. . . . . . . . . . . . . . . . . . . . . 9 Dynamic characteristics . . . . . . . . . . . . . . . . . 10 Dynamic characteristics for translator-type application. . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Dynamic characteristics for CBT-type application. . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Test information . . . . . . . . . . . . . . . . . . . . . . . . 12 Package outline . . . . . . . . . . . . . . . . . . . . . . . . 13 Soldering of SMD packages . . . . . . . . . . . . . . 17 Introduction to soldering . . . . . . . . . . . . . . . . . 17 Wave and reflow soldering . . . . . . . . . . . . . . . 17 Wave soldering . . . . . . . . . . . . . . . . . . . . . . . . 17 Reflow soldering . . . . . . . . . . . . . . . . . . . . . . . 18 Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Revision history . . . . . . . . . . . . . . . . . . . . . . . . 20 Legal information. . . . . . . . . . . . . . . . . . . . . . . 21 Data sheet status . . . . . . . . . . . . . . . . . . . . . . 21 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Contact information. . . . . . . . . . . . . . . . . . . . . 21 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Please be aware that important notices concerning this document and the product(s) described herein, have been included in section `Legal information'.
(c) NXP B.V. 2009.
All rights reserved.
For more information, please visit: http://www.nxp.com For sales office addresses, please send an email to: salesaddresses@nxp.com Date of release: 2 July 2009 Document identifier: GTL2002_7

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