Data Sheet

GTL2008
12-bit GTL to LVTTL translator with power good control and
high-impedance LVTTL and GTL outputs
Rev. 04 — 19 February 2010
Product data sheet
1. General description
The GTL2008 is a customized translator between dual Xeon processors, Platform Health
Management, South Bridge and Power Supply LVTTL and GTL signals.
Functionally and footprint identical to the GTL2007, the GTL2008 LVTTL and GTL outputs
were changed to put them into a high-impedance state when EN1 and EN2 are LOW, with
the exception of 11BO because its normal state is LOW, so it is forced LOW. EN1 and
EN2 will remain LOW until VCC is at normal voltage, the other inputs are in valid states
and VREF is at its proper voltage to assure that the outputs will remain high-impedance
through power-up.
The GTL2008 has the enable function that disables the error output to the monitoring
agent for platforms that monitor the individual error conditions from each processor. This
enable function can be used so that false error conditions are not passed to the
monitoring agent when the system is unexpectedly powered down. This unexpected
power-down could be from a power supply overload, a CPU thermal trip, or some other
event of which the monitoring agent is unaware.
A typical implementation would be to connect each enable line to the system power good
signal or the individual enables to the VRD power good for each processor.
Typically Xeon processors specify a VTT of 1.1 V to 1.2 V, as well as a nominal Vref of
0.73 V to 0.76 V. To allow for future voltage level changes that may extend Vref to 0.63 of
VTT (minimum of 0.693 V with VTT of 1.1 V) the GTL2008 allows a minimum Vref of 0.66 V.
Characterization results show that there is little DC or AC performance variation between
these Vref levels.
2. Features and benefits
„
„
„
„
„
„
„
„
Operates as a GTL to LVTTL sampling receiver or LVTTL to GTL driver
Operates at GTL−/GTL/GTL+ signal levels
EN1 and EN2 disable error output
All LVTTL and GTL outputs are put in a high-impedance state when EN1 and EN2 are
LOW
3.0 V to 3.6 V operation
LVTTL I/O not 5 V tolerant
Series termination on the LVTTL outputs of 30 Ω
ESD protection exceeds 2000 V HBM per JESD22-A114, 150 V MM per
JESD22-A115, and 1000 V CDM per JESD22-C101
GTL2008
NXP Semiconductors
GTL translator with power good control and high-impedance outputs
„ Latch-up testing is done to JEDEC Standard JESD78 Class II, Level A which exceeds
500 mA
„ Package offered: TSSOP28
3. Quick reference data
Table 1.
Quick reference data
Tamb = 25 °C
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
Cio
input/output capacitance
A port; VO = 3.0 V or 0 V
-
2.5
3.5
pF
B port; VO = VTT or 0 V
-
1.5
2.5
pF
LOW to HIGH
propagation delay
nA to nBI; see Figure 4
1
4
8
ns
nBI to nA or nAO (open-drain outputs);
see Figure 14
2
13
18
ns
HIGH to LOW
propagation delay
nA to nBI; see Figure 4
2
5.5
10
ns
nBI to nA or nAO (open-drain outputs);
see Figure 14
2
4
10
ns
LOW to HIGH
propagation delay
nA to nBI; see Figure 4
1
4
8
ns
nBI to nA or nAO (open-drain outputs);
see Figure 14
2
13
18
ns
HIGH to LOW
propagation delay
nA to nBI; see Figure 4
2
5.5
10
ns
nBI to nA or nAO (open-drain outputs);
see Figure 14
2
4
10
ns
Vref = 0.73 V; VTT = 1.1 V
tPLH
tPHL
Vref = 0.76 V; VTT = 1.2 V
tPLH
tPHL
4. Ordering information
Table 2.
Ordering information
Tamb = −40 °C to +85 °C
Type
number
Topside
mark
GTL2008PW GTL2008
GTL2008_4
Product data sheet
Package
Name
Description
Version
TSSOP28
plastic thin shrink small outline package; 28 leads; body width 4.4 mm
SOT361-1
All information provided in this document is subject to legal disclaimers.
Rev. 04 — 19 February 2010
© NXP B.V. 2010. All rights reserved.
2 of 22
GTL2008
NXP Semiconductors
GTL translator with power good control and high-impedance outputs
5. Functional diagram
GTL2008
GTL VREF
1AO
2AO
5A
LVTTL inputs/outputs
(open-drain)
6A
GTL input
27
2
1BI
GTL inputs
LVTTL outputs
(open-drain)
LVTTL input
1
EN1
11BI
LVTTL input/output
(open-drain)
11A
GTL input
9BI
26
3
4
&
5
25
2BI
7BO1
GTL outputs
&
24
7BO2
6
23
7
1
LVTTL input
22
11BO
GTL output
DELAY(1)
8
21
9
EN2
(2)
5BI
DELAY(1)
20
6BI
GTL inputs
3AO
LVTTL outputs
(open-drain)
4AO
19
10
18
11
1
10AI1
12
1
LVTTL inputs
10AI2
13
17
3BI
4BI
10BO1
GTL outputs
16
15
10BO2
9AO
LVTTL output
002aab968
(1) The enable on 7BO1/7BO2 include a delay that prevents the transient condition where 5BI/6BI go from LOW to HIGH, and the
LOW to HIGH on 5A/6A lags up to 100 ns from causing a LOW glitch on the 7BO1/7BO2 outputs.
(2) The 11BO output is driven LOW after VCC is powered up with EN2 LOW to prevent reporting of a fault condition before EN2
goes HIGH.
Fig 1.
Logic diagram of GTL2008
GTL2008_4
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 04 — 19 February 2010
© NXP B.V. 2010. All rights reserved.
3 of 22
GTL2008
NXP Semiconductors
GTL translator with power good control and high-impedance outputs
6. Pinning information
6.1 Pinning
VREF
1
28 VCC
1AO
2
27 1BI
2AO
3
26 2BI
5A
4
25 7BO1
6A
5
24 7BO2
EN1
6
23 EN2
11BI
7
11A
8
9BI
9
20 6BI
3AO 10
19 3BI
4AO 11
18 4BI
GTL2008PW
22 11BO
21 5BI
10AI1 12
17 10BO1
10AI2 13
16 10BO2
GND 14
15 9AO
002aab969
Fig 2.
Pin configuration for TSSOP28
6.2 Pin description
Table 3.
GTL2008_4
Product data sheet
Pin description
Symbol
Pin
Description
VREF
1
GTL reference voltage
1AO
2
data output (LVTTL), open-drain
2AO
3
data output (LVTTL), open-drain
5A
4
data input/output (LVTTL), open-drain
6A
5
data input/output (LVTTL), open-drain
EN1
6
enable input (LVTTL)
11BI
7
data input (GTL)
11A
8
data input/output (LVTTL), open-drain
9BI
9
data input (GTL)
3AO
10
data output (LVTTL), open-drain
4AO
11
data output (LVTTL), open-drain
10AI1
12
data input (LVTTL)
10AI2
13
data input (LVTTL)
GND
14
ground (0 V)
9AO
15
data output (LVTTL), 3-state
10BO2
16
data output (GTL)
10BO1
17
data output (GTL)
4BI
18
data input (GTL)
3BI
19
data input (GTL)
All information provided in this document is subject to legal disclaimers.
Rev. 04 — 19 February 2010
© NXP B.V. 2010. All rights reserved.
4 of 22
GTL2008
NXP Semiconductors
GTL translator with power good control and high-impedance outputs
Table 3.
Pin description …continued
Symbol
Pin
Description
6BI
20
data input (GTL)
5BI
21
data input (GTL)
11BO
22
data output (GTL)
EN2
23
enable input (LVTTL)
7BO2
24
data output (GTL)
7BO1
25
data output (GTL)
2BI
26
data input (GTL)
1BI
27
data input (GTL)
VCC
28
positive supply voltage
7. Functional description
Refer to Figure 1 “Logic diagram of GTL2008”.
7.1 Function tables
Table 4.
GTL input signals
H = HIGH voltage level; L = LOW voltage level.
Output[1]
Input
1BI/2BI/3BI/4BI/9BI
1AO/2AO/3AO/4AO/9AO
L
L
H
H
[1]
1AO, 2AO, 3AO, 4AO and 5A/6A condition changed by ENn power good signal as described in Table 5 and
Table 6.
Table 5.
EN1 power good signal
H = HIGH voltage level; L = LOW voltage level.
EN1
1AO and 2AO
5A
L
1BI and 2BI disconnected (high-Z)
5BI disconnected
H
follows BI
5BI connected
Table 6.
EN2 power good signal
H = HIGH voltage level; L = LOW voltage level.
GTL2008_4
Product data sheet
EN2
3AO and 4AO
6A
L
3BI and 4BI disconnected (high-Z)
6BI disconnected
H
follows BI
6BI connected
All information provided in this document is subject to legal disclaimers.
Rev. 04 — 19 February 2010
© NXP B.V. 2010. All rights reserved.
5 of 22
GTL2008
NXP Semiconductors
GTL translator with power good control and high-impedance outputs
Table 7.
SMI signals
H = HIGH voltage level; L = LOW voltage level; X = Don’t care.
Inputs
Output
10AI1/10AI2
EN2
9BI
10BO1/10BO2
L
H
L
L
L
H
H
L
H
H
L
L
H
H
H
H
L
L
X
L
H
L
X
H
Table 8.
PROCHOT signals
H = HIGH voltage level; L = LOW voltage level.
Input
Input/output
Output
5BI/6BI
5A/6A (open-drain)
7BO1/7BO2
L
L
H[1]
H
L[2]
L
H
H
H
[1]
The enable on 7BO1/7BO2 includes a delay that prevents the transient condition where 5BI/6BI go from
LOW to HIGH, and the LOW to HIGH on 5A/6A lags up to 100 ns from causing a low glitch on the
7BO1/7BO2 outputs.
[2]
Open-drain input/output terminal is driven to logic LOW state by other driver.
Table 9.
NMI signals
H = HIGH voltage level; L = LOW voltage level; X = Don’t care.
Inputs
EN2
11A (open-drain)
11BO
L
H
H
L
L
H
L[1]
H
H
H
L
H
X
L
H
L
L
L[1]
H
[1]
Product data sheet
Output
11BI
X
GTL2008_4
Input/output
Open-drain input/output terminal is driven to logic LOW state by other driver.
All information provided in this document is subject to legal disclaimers.
Rev. 04 — 19 February 2010
© NXP B.V. 2010. All rights reserved.
6 of 22
GTL2008
NXP Semiconductors
GTL translator with power good control and high-impedance outputs
8. Application design-in information
VTT
VTT
56 Ω
1.5 kΩ to 1.2 kΩ
56 Ω
R
VCC
2R
1.5 kΩ
PLATFORM
HEALTH
MANAGEMENT
VCC
VREF
VCC
CPU1
CPU1 1ERR_L
1AO
1BI
IERR_L
CPU1 THRMTRIP L
2AO
2BI
THRMTRIP L
CPU1 PROCHOT L
5A
7BO1
FORCEPR_L
CPU2 PROCHOT L
6A
7BO2
EN1
EN2
11B1
11B0
PROCHOT L
NMI
CPU1 DISABLE_L
GTL2008
11A
5BI
9BI
6BI
PROCHOT L
CPU2 1ERR_L
3AO
3BI
IERR_L
CPU2 THRMTRIP L
4AO
4BI
THRMTRIP L
NMI_L
FORCEPR_L
CPU1 SMI L
10AI1
10BO1
NMI
CPU2 SMI L
10AI2
10BO2
CPU2 DISABLE_L
SMI_BUFF_L
GND
9AO
CPU2
(1)
SOUTHBRIDGE NMI
SOUTHBRIDGE SMI_L
power supply
POWER GOOD
002aab970
(1) If 9AO needs to be HIGH before EN2 goes HIGH, a pull-up resistor is required because it is high-impedance until EN2 goes
HIGH. All other outputs, both GTL and LVTTL, require pull-up resistors because they are open-drain.
Fig 3.
Typical application
GTL2008_4
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 04 — 19 February 2010
© NXP B.V. 2010. All rights reserved.
7 of 22
GTL2008
NXP Semiconductors
GTL translator with power good control and high-impedance outputs
9. Limiting values
Table 10. Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).
Voltages are referenced to GND (ground = 0 V).
Symbol
Parameter
VCC
supply voltage
IIK
input clamping current
input voltage
VI
Conditions
Min
Max
Unit
−0.5
+4.6
V
VI < 0 V
-
−50
mA
A port (LVTTL)
−0.5[1]
+4.6
V
B port (GTL)
−0.5[1]
+4.6
V
IOK
output clamping current
VO < 0 V
-
−50
mA
VO
output voltage
output in OFF or HIGH state; A port
−0.5[1]
+4.6
V
output in OFF or HIGH state; B port
−0.5[1]
+4.6
V
A port
-
32
mA
B port
-
30
mA
A port
-
−32
mA
−60
+150
°C
-
+125
°C
current[2]
IOL
LOW-level output
IOH
HIGH-level output current[3]
Tstg
storage temperature
Tj(max)
[4]
maximum junction temperature
[1]
The input and output negative voltage ratings may be exceeded if the input and output clamp current ratings are observed.
[2]
Current into any output in the LOW state.
[3]
Current into any output in the HIGH state.
[4]
The performance capability of a high-performance integrated circuit in conjunction with its thermal environment can create junction
temperatures which are detrimental to reliability. The maximum junction temperature of this integrated circuit should not exceed 150 °C.
10. Recommended operating conditions
Table 11.
Operating conditions
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
VCC
supply voltage
3.0
3.3
3.6
V
VTT
termination voltage
GTL
-
1.2
-
V
Vref
reference voltage
GTL
0.64
0.8
1.1
V
VI
input voltage
A port
0
3.3
3.6
V
VIH
HIGH-level input voltage
B port
0
VTT
3.6
V
A port and ENn
2
-
-
V
B port
Vref + 0.050
-
-
V
-
-
0.8
V
VIL
LOW-level input voltage
A port and ENn
B port
-
-
Vref − 0.050
V
IOH
HIGH-level output current
A port
-
-
−16
mA
IOL
LOW-level output current
A port
-
-
16
mA
B port
-
-
15
mA
operating in free-air
−40
-
+85
°C
Tamb
ambient temperature
GTL2008_4
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 04 — 19 February 2010
© NXP B.V. 2010. All rights reserved.
8 of 22
GTL2008
NXP Semiconductors
GTL translator with power good control and high-impedance outputs
11. Static characteristics
Table 12. Static characteristics
Recommended operating conditions; voltages are referenced to GND (ground = 0 V). Tamb = −40 °C to +85 °C
Symbol
VOH
VOL
Min
Typ[1]
Max
Unit
9AO; VCC = 3.0 V to 3.6 V; IOH = −100 μA
[2]
VCC − 0.2
3.0
-
V
9AO; VCC = 3.0 V; IOH = −16 mA
[2]
2.1
2.3
-
V
A port; VCC = 3.0 V; IOL = 4 mA
[2]
-
0.15
0.4
V
A port; VCC = 3.0 V; IOL = 8 mA
[2]
-
0.3
0.55
V
A port; VCC = 3.0 V; IOL = 16 mA
[2]
-
0.6
0.8
V
B port; VCC = 3.0 V; IOL = 15 mA
[2]
Parameter
Conditions
HIGH-level output
voltage
LOW-level output
voltage
-
0.13
0.4
V
IOH
HIGH-level output
current
open-drain outputs; A port other than 9AO;
VO = VCC; VCC = 3.6 V
-
-
±1
μA
II
input current
A port; VCC = 3.6 V; VI = VCC
-
-
±1
μA
A port; VCC = 3.6 V; VI = 0 V
-
-
±1
μA
B port; VCC = 3.6 V; VI = VTT or GND
-
-
±1
μA
ICC
supply current
A or B port; VCC = 3.6 V; VI = VCC or GND;
IO = 0 mA
-
8
12
mA
ΔICC[3]
additional supply
current
per input; A port or control inputs;
VCC = 3.6 V; VI = VCC − 0.6 V
-
-
500
μA
Cio
input/output
capacitance
A port; VO = 3.0 V or 0 V
-
2.5
3.5
pF
B port; VO = VTT or 0 V
-
1.5
2.5
pF
[1]
All typical values are measured at VCC = 3.3 V and Tamb = 25 °C.
[2]
The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
[3]
This is the increase in supply current for each input that is at the specified LVTTL voltage level rather than VCC or GND.
GTL2008_4
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 04 — 19 February 2010
© NXP B.V. 2010. All rights reserved.
9 of 22
GTL2008
NXP Semiconductors
GTL translator with power good control and high-impedance outputs
12. Dynamic characteristics
Table 13. Dynamic characteristics
VCC = 3.3 V ± 0.3 V
Symbol Parameter
Conditions
Min
Typ[1]
Max
Unit
Vref = 0.73 V; VTT = 1.1 V
tPLH
tPHL
LOW to HIGH propagation delay
HIGH to LOW propagation delay
nA to nBI; see Figure 4
1
4
8
ns
9BI to 9AO; see Figure 5
2
5.5
10
ns
nBI to nA or nAO (open-drain outputs);
see Figure 14
2
13
18
ns
9BI to 10BOn
2
6
11
ns
11A to 11BO; see Figure 10
1
4
8
ns
11BI to 11A; see Figure 9
2
7.5
11
ns
11BI to 11BO
2
8
13
ns
5BI to 7BO1 or 6BI to 7BO2;
see Figure 7
4
7
12
ns
nA to nBI; see Figure 4
2
5.5
10
ns
9BI to 9AO; see Figure 5
2
5.5
10
ns
nBI to nA or nAO (open-drain outputs);
see Figure 14
2
4
10
ns
9BI to 10BOn
2
6
11
ns
11A to 11BO; see Figure 10
1
5.5
10
ns
2
8.5
13
ns
2
14
21
ns
5BI to 7BO1 or 6BI to 7BO2;
see Figure 7
100
205
350
ns
EN1 to nAO or EN2 to nAO;
see Figure 8
1
3
10
ns
EN1 to 5A (I/O) or EN2 to 6A (I/O);
see Figure 8
1
3
7
ns
EN1 to nAO or EN2 to nAO;
see Figure 8
2
7
10
ns
EN1 to 5A (I/O) or EN2 to 6A (I/O);
see Figure 8
2
7
10
ns
11BI to 11A; see Figure 9
11BI to 11BO
tPLZ
tPZL
LOW to OFF-state
propagation delay
OFF-state to LOW
propagation delay
[2]
tPHZ
HIGH to OFF-state
propagation delay
EN2 to 9AO; see Figure 11
2
5
10
ns
tPZH
OFF-state to HIGH
propagation delay
EN2 to 9AO; see Figure 11
1
4
10
ns
GTL2008_4
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 04 — 19 February 2010
© NXP B.V. 2010. All rights reserved.
10 of 22
GTL2008
NXP Semiconductors
GTL translator with power good control and high-impedance outputs
Table 13. Dynamic characteristics …continued
VCC = 3.3 V ± 0.3 V
Symbol Parameter
Conditions
Min
Typ[1]
Max
Unit
nA to nBI; see Figure 4
1
4
8
ns
9BI to 9AO; see Figure 5
2
5.5
10
ns
nBI to nA or nAO (open-drain outputs);
see Figure 14
2
13
18
ns
9BI to 10BOn
2
6
11
ns
11A to 11BO; see Figure 10
1
4
8
ns
11BI to 11A; see Figure 9
2
7.5
11
ns
11BI to 11BO
2
8
13
ns
5BI to 7BO1 or 6BI to 7BO2;
see Figure 7
4
7
12
ns
nA to nBI; see Figure 4
2
5.5
10
ns
9BI to 9AO; see Figure 5
2
5.5
10
ns
nBI to nA or nAO (open-drain outputs);
see Figure 14
2
4
10
ns
9BI to 10BOn
2
6
11
ns
11A to 11BO; see Figure 10
1
5.5
10
ns
2
8.5
13
ns
Vref = 0.76 V; VTT = 1.2 V
LOW to HIGH propagation delay
tPLH
HIGH to LOW propagation delay
tPHL
11BI to 11A; see Figure 9
2
14
21
ns
5BI to 7BO1 or 6BI to 7BO2;
see Figure 7
100
205
350
ns
EN1 to nAO or EN2 to nAO;
see Figure 8
1
3
10
ns
EN1 to 5A (I/O) or EN2 to 6A (I/O);
see Figure 8
1
3
7
ns
EN1 to nAO or EN2 to nAO;
see Figure 8
2
7
10
ns
EN1 to 5A (I/O) or EN2 to 6A (I/O);
see Figure 8
2
7
10
ns
11BI to 11BO
LOW to OFF-state propagation
delay
tPLZ
OFF-state to LOW
propagation delay
tPZL
[2]
tPHZ
HIGH to OFF-state
propagation delay
EN2 to 9AO; see Figure 11
2
5
10
ns
tPZH
OFF-state to HIGH
propagation delay
EN2 to 9AO; see Figure 11
2
4
10
ns
[1]
All typical values are at VCC = 3.3 V and Tamb = 25 °C.
[2]
Includes ~7.6 ns RC rise time of test load pull-up on 11A, 1.5 kΩ pull-up and 21 pF load on 11A has about 23 ns RC rise time.
GTL2008_4
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 04 — 19 February 2010
© NXP B.V. 2010. All rights reserved.
11 of 22
GTL2008
NXP Semiconductors
GTL translator with power good control and high-impedance outputs
12.1 Waveforms
VM = 1.5 V at VCC ≥ 3.0 V for A ports; VM = Vref for B ports.
3.0 V
input
1.5 V
1.5 V
0V
tPLH
tp
tPHL
VTT
VOH
Vref
Vref
output
VM
VM
VOL
0V
002aab000
002aaa999
VM = 1.5 V for A port and Vref for B port
A port to B port
a. Pulse duration
Fig 4.
b. Propagation delay times
Voltage waveforms
VTT
input
Vref
VTT
Vref
input
1/ V
3 TT
tPLH
tPHL
Vref
Vref
tPZL
tPLZ
1/ V
3 TT
VOH
1.5 V
output
VCC
1.5 V
output
1.5 V
VOL + 0.3 V
VOL
002aab001
002aab002
PRR ≤ 10 MHz; Zo = 50 Ω; tr ≤ 2.5 ns; tf ≤ 2.5 ns
Fig 5.
Propagation delay, 9BI to 9AO
Fig 6.
nBI to nA (I/O) or nBI to nAO open-drain
outputs
VTT
input
Vref
Vref
tPLH
tPHL
3.0 V
input
1.5 V
1.5 V
tPLZ
tPZL
1/ V
3 TT
0V
VTT
output
Vref
VOH
output
Vref
VOL
002aac195
Fig 7.
5BI to 7BO1 or 6BI to 7BO2
GTL2008_4
Product data sheet
VOL + 0.3 V
1.5 V
VOL
002aab005
Fig 8.
EN1 to 5A (I/O) or EN2 to 6A (I/O) or EN1 to
nAO or EN2 to nAO
All information provided in this document is subject to legal disclaimers.
Rev. 04 — 19 February 2010
© NXP B.V. 2010. All rights reserved.
12 of 22
GTL2008
NXP Semiconductors
GTL translator with power good control and high-impedance outputs
VTT
input
Vref
Vref
tPLZ
tPZL
3.0 V
input
1.5 V
1.5 V
0V
0V
tPLH
tPHL
VOH
output
VOL + 0.3 V
VTT
output
1.5 V
Vref
VOL
VOL
002aac196
Fig 9.
Vref
002aac197
11BI to 11A
Fig 10. 11A to 11BO
3.0 V
input
1.5 V
1.5 V
tPHZ
tPZH
0V
VOH
output
VOL + 0.3 V
1.5 V
VOL
002aab980
Fig 11. EN2 to 9AO
GTL2008_4
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 04 — 19 February 2010
© NXP B.V. 2010. All rights reserved.
13 of 22
GTL2008
NXP Semiconductors
GTL translator with power good control and high-impedance outputs
13. Test information
VCC
PULSE
GENERATOR
VI
VO
DUT
RL
500 Ω
CL
50 pF
RT
002aab981
Fig 12. Load circuit for A outputs (9AO)
VTT
VCC
50 Ω
VI
PULSE
GENERATOR
VO
DUT
CL
30 pF
RT
002aab264
Fig 13. Load circuit for B outputs
VCC
VCC
PULSE
GENERATOR
VI
RL
1.5 kΩ
VO
DUT
CL
21 pF
RT
002aab265
Fig 14. Load circuit for open-drain LVTTL I/O and open-drain outputs
6V
VCC
PULSE
GENERATOR
VI
RL
500 Ω
VO
DUT
RT
CL
50 pF
RL
500 Ω
002aab982
Fig 15. Load circuit for 9AO OFF-state to LOW and LOW to OFF-state
RL — Load resistor
CL — Load capacitance; includes jig and probe capacitance
RT — Termination resistance; should be equal to Zo of pulse generators.
GTL2008_4
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 04 — 19 February 2010
© NXP B.V. 2010. All rights reserved.
14 of 22
GTL2008
NXP Semiconductors
GTL translator with power good control and high-impedance outputs
14. Package outline
TSSOP28: plastic thin shrink small outline package; 28 leads; body width 4.4 mm
D
SOT361-1
E
A
X
c
HE
y
v M A
Z
15
28
Q
A2
(A 3)
A1
pin 1 index
A
θ
Lp
1
L
14
detail X
w M
bp
e
0
2.5
5 mm
scale
DIMENSIONS (mm are the original dimensions)
UNIT
A
max.
A1
A2
A3
bp
c
D (1)
E (2)
e
HE
L
Lp
Q
v
w
y
Z (1)
θ
mm
1.1
0.15
0.05
0.95
0.80
0.25
0.30
0.19
0.2
0.1
9.8
9.6
4.5
4.3
0.65
6.6
6.2
1
0.75
0.50
0.4
0.3
0.2
0.13
0.1
0.8
0.5
8
o
0
o
Notes
1. Plastic or metal protrusions of 0.15 mm maximum per side are not included.
2. Plastic interlead protrusions of 0.25 mm maximum per side are not included.
OUTLINE
VERSION
SOT361-1
REFERENCES
IEC
JEDEC
JEITA
EUROPEAN
PROJECTION
ISSUE DATE
99-12-27
03-02-19
MO-153
Fig 16. Package outline SOT361-1 (TSSOP28)
GTL2008_4
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 04 — 19 February 2010
© NXP B.V. 2010. All rights reserved.
15 of 22
GTL2008
NXP Semiconductors
GTL translator with power good control and high-impedance outputs
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
GTL2008_4
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 04 — 19 February 2010
© NXP B.V. 2010. All rights reserved.
16 of 22
GTL2008
NXP Semiconductors
GTL translator with power good control and high-impedance outputs
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 14 and 15
Table 14.
SnPb eutectic process (from J-STD-020C)
Package thickness (mm)
Package reflow temperature (°C)
Volume (mm3)
< 350
≥ 350
< 2.5
235
220
≥ 2.5
220
220
Table 15.
Lead-free process (from J-STD-020C)
Package thickness (mm)
Package reflow temperature (°C)
Volume (mm3)
< 350
350 to 2000
> 2000
< 1.6
260
260
260
1.6 to 2.5
260
250
245
> 2.5
250
245
245
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.
GTL2008_4
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 04 — 19 February 2010
© NXP B.V. 2010. All rights reserved.
17 of 22
GTL2008
NXP Semiconductors
GTL translator with power good control and high-impedance outputs
maximum peak temperature
= MSL limit, damage level
temperature
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 16.
GTL2008_4
Product data sheet
Abbreviations
Acronym
Description
CDM
Charged Device Model
CMOS
Complementary Metal Oxide Semiconductor
CPU
Central Processing Unit
DUT
Device Under Test
ESD
ElectroStatic Discharge
GTL
Gunning Transceiver Logic
HBM
Human Body Model
LVTTL
Low Voltage Transistor-Transistor Logic
MM
Machine Model
PRR
Pulse Rate Repetition
TTL
Transistor-Transistor Logic
VRD
Voltage Regulator Down
All information provided in this document is subject to legal disclaimers.
Rev. 04 — 19 February 2010
© NXP B.V. 2010. All rights reserved.
18 of 22
GTL2008
NXP Semiconductors
GTL translator with power good control and high-impedance outputs
17. Revision history
Table 17.
Revision history
Document ID
Release date
Data sheet status
GTL2008_4
20100219
Product data sheet
Modifications:
•
Change notice
Supersedes
-
GTL2008_3
8th
Section 2 “Features and benefits”,
bullet item: corrected from “200 V MM per
JESD22-A115” to “150 V MM per JESD22-A115”
GTL2008_3
20070201
Product data sheet
-
GTL2008_GTL2107_2
GTL2008_GTL2107_2
20060926
Product data sheet
-
GTL2008_1
GTL2008_1
20060502
Product data sheet
-
-
GTL2008_4
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 04 — 19 February 2010
© NXP B.V. 2010. All rights reserved.
19 of 22
GTL2008
NXP Semiconductors
GTL translator with power good control and high-impedance outputs
18. Legal information
18.1 Data sheet status
Document status[1][2]
Product status[3]
Definition
Objective [short] data sheet
Development
This document contains data from the objective specification for product development.
Preliminary [short] data sheet
Qualification
This document contains data from the preliminary specification.
Product [short] data sheet
Production
This document contains the product specification.
[1]
Please consult the most recently issued document before initiating or completing a design.
[2]
The term ‘short data sheet’ is explained in section “Definitions”.
[3]
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.
Product specification — The information and data provided in a Product
data sheet shall define the specification of the product as agreed between
NXP Semiconductors and its customer, unless NXP Semiconductors and
customer have explicitly agreed otherwise in writing. In no event however,
shall an agreement be valid in which the NXP Semiconductors product is
deemed to offer functions and qualities beyond those described in the
Product data sheet.
18.3 Disclaimers
Limited warranty and liability — 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.
In no event shall NXP Semiconductors be liable for any indirect, incidental,
punitive, special or consequential damages (including - without limitation - lost
profits, lost savings, business interruption, costs related to the removal or
replacement of any products or rework charges) whether or not such
damages are based on tort (including negligence), warranty, breach of
contract or any other legal theory.
Notwithstanding any damages that customer might incur for any reason
whatsoever, NXP Semiconductors’ aggregate and cumulative liability towards
customer for the products described herein shall be limited in accordance
with the Terms and conditions of commercial sale of NXP Semiconductors.
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
GTL2008_4
Product data sheet
malfunction of an NXP Semiconductors product can reasonably be expected
to result in personal injury, death or severe property or environmental
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.
NXP Semiconductors does not accept any liability related to any default,
damage, costs or problem which is based on a weakness or default in the
customer application/use or the application/use of customer’s third party
customer(s) (hereinafter both referred to as “Application”). It is customer’s
sole responsibility to check whether the NXP Semiconductors product is
suitable and fit for the Application planned. Customer has to do all necessary
testing for the Application in order to avoid a default of the Application and the
product. NXP Semiconductors does not accept any liability in this respect.
Limiting values — Stress above one or more limiting values (as defined in
the Absolute Maximum Ratings System of IEC 60134) will cause permanent
damage to the device. Limiting values are stress ratings only and (proper)
operation of the device at these or any other conditions above those given in
the Recommended operating conditions section (if present) or the
Characteristics sections of this document is not warranted. Constant or
repeated exposure to limiting values will permanently and irreversibly affect
the quality and reliability of the device.
Terms and conditions of commercial 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, unless otherwise
agreed in a valid written individual agreement. In case an individual
agreement is concluded only the terms and conditions of the respective
agreement shall apply. NXP Semiconductors hereby expressly objects to
applying the customer’s general terms and conditions with regard to the
purchase of NXP Semiconductors products by customer.
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.
Quick reference data — The Quick reference data is an extract of the
product data given in the Limiting values and Characteristics sections of this
document, and as such is not complete, exhaustive or legally binding.
Non-automotive qualified products — Unless the data sheet of an NXP
Semiconductors product expressly states that the product is automotive
qualified, the product is not suitable for automotive use. It is neither qualified
nor tested in accordance with automotive testing or application requirements.
NXP Semiconductors accepts no liability for inclusion and/or use of
non-automotive qualified products in automotive equipment or applications.
All information provided in this document is subject to legal disclaimers.
Rev. 04 — 19 February 2010
© NXP B.V. 2010. All rights reserved.
20 of 22
GTL2008
NXP Semiconductors
GTL translator with power good control and high-impedance outputs
In the event that customer uses the product for design-in and use in
automotive applications to automotive specifications and standards, customer
(a) shall use the product without NXP Semiconductors’ warranty of the
product for such automotive applications, use and specifications, and (b)
whenever customer uses the product for automotive applications beyond
NXP Semiconductors’ specifications such use shall be solely at customer’s
own risk, and (c) customer fully indemnifies NXP Semiconductors for any
liability, damages or failed product claims resulting from customer design and
use of the product for automotive applications beyond NXP Semiconductors’
standard warranty and NXP Semiconductors’ product specifications.
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: [email protected]
GTL2008_4
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 04 — 19 February 2010
© NXP B.V. 2010. All rights reserved.
21 of 22
GTL2008
NXP Semiconductors
GTL translator with power good control and high-impedance outputs
20. Contents
1
2
3
4
5
6
6.1
6.2
7
7.1
8
9
10
11
12
12.1
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 and benefits . . . . . . . . . . . . . . . . . . . . 1
Quick reference data . . . . . . . . . . . . . . . . . . . . . 2
Ordering information . . . . . . . . . . . . . . . . . . . . . 2
Functional diagram . . . . . . . . . . . . . . . . . . . . . . 3
Pinning information . . . . . . . . . . . . . . . . . . . . . . 4
Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 4
Functional description . . . . . . . . . . . . . . . . . . . 5
Function tables . . . . . . . . . . . . . . . . . . . . . . . . . 5
Application design-in information . . . . . . . . . . 7
Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . . 8
Recommended operating conditions. . . . . . . . 8
Static characteristics. . . . . . . . . . . . . . . . . . . . . 9
Dynamic characteristics . . . . . . . . . . . . . . . . . 10
Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Test information . . . . . . . . . . . . . . . . . . . . . . . . 14
Package outline . . . . . . . . . . . . . . . . . . . . . . . . 15
Soldering of SMD packages . . . . . . . . . . . . . . 16
Introduction to soldering . . . . . . . . . . . . . . . . . 16
Wave and reflow soldering . . . . . . . . . . . . . . . 16
Wave soldering . . . . . . . . . . . . . . . . . . . . . . . . 16
Reflow soldering . . . . . . . . . . . . . . . . . . . . . . . 17
Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Revision history . . . . . . . . . . . . . . . . . . . . . . . . 19
Legal information. . . . . . . . . . . . . . . . . . . . . . . 20
Data sheet status . . . . . . . . . . . . . . . . . . . . . . 20
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
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’.
© NXP B.V. 2010.
All rights reserved.
For more information, please visit: http://www.nxp.com
For sales office addresses, please send an email to: [email protected]
Date of release: 19 February 2010
Document identifier: GTL2008_4
Similar pages