SN74GTLP22033
8-BIT LVTTL-TO-GTLP ADJUSTABLE-EDGE-RATE REGISTERED TRANSCEIVER
WITH SPLIT LVTTL PORT AND FEEDBACK PATH
SCES354C – JUNE 2001 – REVISED SEPTEMBER 2001
D
D
D
D
D
D
D
D
D
D
D
D
D
D
Member of the Texas Instruments
Widebus Family
TI-OPC Circuitry Limits Ringing on
Unevenly Loaded Backplanes
OEC Circuitry Improves Signal Integrity
and Reduces Electromagnetic Interference
Bidirectional Interface Between GTLP
Signal Levels and LVTTL Logic Levels
Split LVTTL Port Provides a Feedback Path
for Control and Diagnostics Monitoring
AO Outputs Have Equivalent 26-Ω Series
Resistors, So No External Resistors Are
Required
LVTTL Interfaces Are 5-V Tolerant
High-Drive GTLP Open-Drain Outputs
(100 mA)
Reduced LVTTL Outputs (–12 mA/12 mA)
Variable Edge-Rate Control (ERC) Input
Selects GTLP Rise and Fall Times for
Optimal Data-Transfer Rate and Signal
Integrity in Distributed Loads
Ioff, Power-Up 3-State, and BIAS VCC
Support Live Insertion
Distributed VCC and GND Pins Minimize
High-Speed Switching Noise
Latch-Up Performance Exceeds 100 mA Per
JESD 78, Class II
ESD Protection Exceeds JESD 22
– 2000-V Human-Body Model (A114-A)
– 200-V Machine Model (A115-A)
– 1000-V Charged-Device Model (C101)
DGG OR DGV PACKAGE
(TOP VIEW)
IMODE1
AI1
AO1
GND
AI2
AO2
VCC
AI3
AO3
GND
AI4
AO4
AO5
AI5
GND
AO6
AI6
VCC
AO7
AI7
GND
AO8
AI8
OMODE0
1
48
2
47
3
46
4
45
5
44
6
43
7
42
8
41
9
40
10
39
11
38
12
37
13
36
14
35
15
34
16
33
17
32
18
31
19
30
20
29
21
28
22
27
23
26
24
25
IMODE0
BIAS VCC
B1
GND
OEAB
B2
ERC
OEAB
B3
GND
CLKAB/LEAB
B4
B5
CLKBA/LEBA
GND
B6
OEBA
VCC
B7
LOOPBACK
GND
B8
VREF
OMODE1
description
The SN74GTLP22033 is a high-drive, 8-bit, three-wire registered transceiver that provides inverted
LVTTL-to-GTLP and GTLP-to-LVTTL signal-level translation. The device allows for transparent, latched, and
flip-flop modes of data transfer with separate LVTTL input and LVTTL output pins, which provides a feedback
path for control and diagnostics monitoring, the same functionality as the SN74FB2033. The device provides
a high-speed interface between cards operating at LVTTL logic levels and a backplane operating at GTLP signal
levels. High-speed (about three times faster than standard LVTTL or TTL) backplane operation is a direct result
of GTLP’s reduced output swing ( VCC.
3. The package thermal impedance is calculated in accordance with JESD 51-7.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
7
SN74GTLP22033
8-BIT LVTTL-TO-GTLP ADJUSTABLE-EDGE-RATE REGISTERED TRANSCEIVER
WITH SPLIT LVTTL PORT AND FEEDBACK PATH
SCES354C – JUNE 2001 – REVISED SEPTEMBER 2001
recommended operating conditions (see Notes 4 through 7)
VCC,
BIAS VCC
Supply voltage
VTT
Termination voltage
VREF
Reference voltage
VI
Input voltage
VIH
High level input voltage
High-level
VIL
Low level input voltage
Low-level
IIK
IOH
Input clamp current
High-level output current
IOL
Low level output current
Low-level
∆t/∆v
Input transition rise or fall rate
∆t/∆VCC
TA
Power-up ramp rate
MIN
NOM
MAX
UNIT
3.15
3.3
3.45
V
GTL
1.14
1.2
1.26
GTLP
1.35
1.5
1.65
GTL
0.74
0.8
0.87
GTLP
0.87
1
1.1
VCC
VTT
5.5
B port
Except B port and VREF
B port
Except B port
VREF+0.05
2
B port
V
V
V
VREF–0.05
0.8
Except B port
V
V
–18
mA
AO
–12
mA
AO
12
B port
100
Outputs enabled
10
–40
ns/V
µs/V
20
Operating free-air temperature
mA
85
°C
NOTES: 4. All unused control and B-port inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI
application report, Implications of Slow or Floating CMOS Inputs, literature number SCBA004.
5. Proper connection sequence for use of the B-port I/O precharge feature is GND and BIAS VCC = 3.3 V first, I/O second, and
VCC = 3.3 V last, because the BIAS VCC precharge circuitry is disabled when any VCC pin is connected. The control and VREF inputs
can be connected anytime, but normally are connected during the I/O stage. If B-port precharge is not required, any connection
sequence is acceptable but, generally, GND is connected first.
6. VTT and RTT can be adjusted to accommodate backplane impedances if the dc recommended IOL ratings are not exceeded.
7. VREF can be adjusted to optimize noise margins, but normally is two-thirds VTT. TI-OPC circuitry is enabled in the A-to-B direction
and is activated when VTT > 0.7 V above VREF. If operated in the A-to-B direction, VREF should be set to within 0.6 V of VTT to
minimize current drain.
8
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
SN74GTLP22033
8-BIT LVTTL-TO-GTLP ADJUSTABLE-EDGE-RATE REGISTERED TRANSCEIVER
WITH SPLIT LVTTL PORT AND FEEDBACK PATH
SCES354C – JUNE 2001 – REVISED SEPTEMBER 2001
electrical characteristics over recommended operating free-air temperature range for GTLP
(unless otherwise noted)
PARAMETER
VIK
VOH
AO
TEST CONDITIONS
VCC = 3.15 V,
VCC = 3.15 V to 3.45 V,
II = –18 mA
IOH = –100 µA
VCC = 3
3.15
15 V
IOH = –6 mA
IOH = –12 mA
VCC = 3
3.15
15 V
II‡
IOZ‡
ICC
VCC = 3.15 V
MAX
UNIT
–1.2
V
VCC–0.2
2.4
V
2
0.2
0.55
IOL = 12 mA
IOL = 10 mA
VOL
B port
TYP†
IOL = 100 µA
IOL = 6 mA
VCC = 3.15 V to 3.45 V,
AO
MIN
0.8
0.2
IOL = 64 mA
IOL = 100 mA
0.55
0.4
AI and
control inputs
VCC = 3.45 V,
VI = 0 or 5.5 V
±10
AO
VCC = 3.45 V,
VO = 0 to 5.5 V
±10
B port
VCC = 3.45 V, VREF within 0.6 V of VTT,
±10
AO or B port
VCC = 3.45 V, IO = 0,
VI (A-port or control input) = VCC or GND,
VI (B port) = VTT or GND
VO = 0 to 2.3 V
Outputs high
AI
µA
µA
40
Outputs low
40
Outputs disabled
40
VCC = 3.45 V, One AI or control input at VCC – 0.6 V,
Other AI or control inputs at VCC or GND
∆ICC§
V
1.5
mA
mA
3.5
4.5
3.5
5.5
5
6
pF
Cio
B port
8.5
† All typical values are at VCC = 3.3 V, TA = 25°C.
‡ For I/O ports, the parameter IOZ includes the input leakage current.
§ This is the increase in supply current for each input that is at the specified TTL voltage level rather than VCC or GND.
10
pF
Ci
Control inputs
Co
AO
VI = 3.15
3 15 V or 0
VO = 3.15 V or 0
VO = 1.5 V or 0
pF
hot-insertion specifications for A port over recommended operating free-air temperature range
PARAMETER
TEST CONDITIONS
MIN
MAX
UNIT
Ioff
IOZPU
VCC = 0,
VCC = 0 to 1.5 V,
VI or VO = 0 to 5.5 V
VO = 0.5 V to 3 V,
10
µA
OEBA = VCC
±30
µA
IOZPD
VCC = 1.5 V to 0,
VO = 0.5 V to 3 V,
OEBA = VCC
±30
µA
live-insertion specifications for B port over recommended operating free-air temperature range
PARAMETER
TEST CONDITIONS
MIN
Ioff
IOZPU
VCC = 0,
BIAS VCC = 0,
VI or VO = 0 to 1.5 V
VCC = 0 to 1.5 V, BIAS VCC = 0, VO = 0.5 V to 1.5 V, OEAB = 0 and OEAB = VCC
IOZPD
ICC
(BIAS VCC)
VCC = 1.5 V to 0, BIAS VCC = 0, VO = 0.5 V to 1.5 V, OEAB = 0 and OEAB = VCC
VCC = 0 to 3.15 V
BIAS VCC = 3
3.15
15 V to 3
3.45
45 V
V, VO (B port) = 0 to 1.5
15V
VCC = 3.15 V to 3.45 V
VO
IO
VCC = 0,
VCC = 0,
BIAS VCC = 3.3 V,
BIAS VCC = 3.15 V to 3.45 V,
POST OFFICE BOX 655303
IO = 0
VO (B port) = 0.6 V
• DALLAS, TEXAS 75265
0.95
–1
MAX
UNIT
10
µA
±30
µA
±30
µA
5
mA
10
µA
1.05
V
µA
9
SN74GTLP22033
8-BIT LVTTL-TO-GTLP ADJUSTABLE-EDGE-RATE REGISTERED TRANSCEIVER
WITH SPLIT LVTTL PORT AND FEEDBACK PATH
SCES354C – JUNE 2001 – REVISED SEPTEMBER 2001
timing requirements over recommended ranges of supply voltage and operating free-air
temperature, VTT = 1.5 V and VREF = 1 V for GTLP (unless otherwise noted)
MIN
fclock
tw
tsu
th
10
Clock frequency
Pulse duration
CLKAB/LEAB or CLKBA/LEBA
2.8
AI before CLKAB↑
1.1
AI before CLKBA↑
1.4
B before CLKBA↑
Setup time
Hold time
POST OFFICE BOX 655303
1
AI before LEAB↓
1.6
AI before LEBA↓
2.1
B before LEBA↓
2.2
AI after CLKAB↑
0.3
AI after CLKBA↑
0.2
B after CLKBA↑
0.6
AI after LEAB↓
0.3
AI after LEBA↓
0
B after LEBA↓
0
• DALLAS, TEXAS 75265
MAX
UNIT
175
MHz
ns
ns
ns
SN74GTLP22033
8-BIT LVTTL-TO-GTLP ADJUSTABLE-EDGE-RATE REGISTERED TRANSCEIVER
WITH SPLIT LVTTL PORT AND FEEDBACK PATH
SCES354C – JUNE 2001 – REVISED SEPTEMBER 2001
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature, VTT = 1.5 V and VREF = 1 V for GTLP (see Figure 1)
PARAMETER
fmax
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
tPLH
FROM
(INPUT)
TO
(OUTPUT)
EDGE RATE†
MIN
TYP‡
MAX
175
AI
(buffer)
B
Sl
Slow
AI
(buffer)
B
F t
Fast
B
(buffer)
AO
–
LEAB
(latch mode)
B
Slo
Slow
LEAB
(latch mode)
B
F t
Fast
LEAB
(latch mode)
AO
–
LEBA
(latch mode)
AO
–
OEAB
B
Sl
Slow
OEAB
B
Fast
OEAB
B
Sl
Slow
OEAB
B
F t
Fast
OEBA
AO
–
OEBA
AO
–
CLKAB
(flip-flop mode)
B
Sl
Slow
CLKAB
(flip-flop mode)
B
F t
Fast
CLKAB
(flip-flop mode)
AO
–
CLKBA
(flip-flop mode)
AO
–
OMODE
B
Sl
Slow
OMODE
B
F t
Fast
IMODE
AO
–
tPHL
† Slow (ERC = H) and Fast (ERC = L)
‡ All typical values are at VCC = 3.3 V, TA = 25°C.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
UNIT
MHz
3
7.4
3
7.1
2
5.9
2
5.8
1
6.1
1
5.4
4.2
8.6
3.2
7.7
3.2
7.6
2.8
6.7
2
7.3
1.8
6.6
1
6
1
5.2
3.8
7.5
3.1
7
2.5
6
2.5
6
3.5
7.5
3
7.2
2.5
6
2.5
6
1
5.3
1
4.2
1
5.5
1
5.2
4.4
8.8
3.6
8.1
3.2
7.2
3.1
6.9
2
7.5
1.8
7
1
6
1
5.6
3.8
8.7
3.2
8.2
2.7
7.2
2.7
7.2
1
6
1
5.1
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
11
SN74GTLP22033
8-BIT LVTTL-TO-GTLP ADJUSTABLE-EDGE-RATE REGISTERED TRANSCEIVER
WITH SPLIT LVTTL PORT AND FEEDBACK PATH
SCES354C – JUNE 2001 – REVISED SEPTEMBER 2001
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature, VTT = 1.5 V and VREF = 1 V for GTLP (see Figure 1) (continued)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
EDGE RATE†
tPLH
tPHL
LOOPBACK
AO
–
tPLH
tPHL
AI
(loopback high)
AO
–
tr
Rise time,
time B-port
B port outputs (20% to 80%)
MIN
MAX
2.5
6.8
2
5.4
1
6
1
5.5
Slow
2.8
Fast
1.5
Rise time, AO (10% to 90%)
tf
TYP‡
UNIT
ns
ns
ns
5.5
Fall time
time, B
B-port
port outputs (80% to 20%)
Slow
3
Fast
1.8
Fall time, AO (90% to 10%)
ns
4.5
† Slow (ERC = H) and Fast (ERC = L)
‡ All typical values are at VCC = 3.3 V, TA = 25°C.
skew characteristics over recommended ranges of supply voltage and operating free-air
temperature (see Figure 1)§
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
EDGE RATE†
tsk(LH)¶
tsk(HL)¶
AI
B
Slow
tsk(LH)¶
tsk(HL)¶
AI
tsk(LH)¶
tsk(HL)¶
CLKAB/LEAB
tsk(LH)¶
tsk(HL)¶
CLKAB/LEAB
B
AI
B
B
B
tsk(t)
k(t)¶
CLKAB/LEAB
B
Fast
Slow
Fast
MIN
TYP‡
MAX
0.5
1
0.5
1
0.4
0.9
0.4
0.9
0.5
1
0.5
1
0.4
0.9
0.4
0.9
Slow
1.4
2
Fast
0.6
1.4
Slow
1.8
2.5
Fast
0.9
1.8
UNIT
ns
ns
ns
ns
ns
† Slow (ERC = L) and Fast (ERC = H)
‡ All typical values are at VCC = 3.3 V, TA = 25°C.
§ Actual skew values between the GTLP outputs could vary on the backplane due to the loading and impedance seen by the device.
¶ tsk(LH)/tsk(HL) and tsk(t) – Output-to-output skew is defined as the absolute value of the difference between the actual propagation delay for all
outputs with the same packaged device. The specifications are given for specific worst-case VCC and temperature and apply to any outputs
switching in the same direction either high to low [tsk(HL)] or low to high [tsk(LH)] or in opposite directions, both low to high and high to low [tsk(t)].
12
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
SN74GTLP22033
8-BIT LVTTL-TO-GTLP ADJUSTABLE-EDGE-RATE REGISTERED TRANSCEIVER
WITH SPLIT LVTTL PORT AND FEEDBACK PATH
SCES354C – JUNE 2001 – REVISED SEPTEMBER 2001
PARAMETER MEASUREMENT INFORMATION
1.5 V
6V
S1
500 Ω
From Output
Under Test
Open
GND
CL = 50 pF
(see Note A)
500 Ω
12.5 Ω
S1
Open
6V
GND
TEST
tPLH/tPHL
tPLZ/tPZL
tPHZ/tPZH
From Output
Under Test
Test
Point
CL = 30 pF
(see Note A)
LOAD CIRCUIT FOR B OUTPUTS
LOAD CIRCUIT FOR A OUTPUTS
tw
3V
3V
1.5 V
Input
1.5 V
Timing
Input
1.5 V
0V
0V
VOLTAGE WAVEFORMS
PULSE DURATION
tsu
th
VOH
Data
Input
VM
VM
0V
3V
Input
1.5 V
1.5 V
0V
tPLH
tPHL
VOLTAGE WAVEFORMS
SETUP AND HOLD TIMES
(VM = 1.5 V for A port and 1 V for B port)
(VOH = 3 V for A port and 1.5 V for B port)
VOH
Output
1V
1V
3V
VOL
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
(AI to B port)
1V
1V
0V
tPLH
1.5 V
1.5 V
0V
Output
Waveform 1
S1 at 6 V
(see Note B)
tPLZ
3V
1.5 V
VOL + 0.3 V
VOL
tPHZ
tPZH
tPHL
VOH
Output
1.5 V
tPZL
1.5 V
Input
Output
Control
1.5 V
VOL
Output
Waveform 2
S1 at GND
(see Note B)
1.5 V
VOH
VOH – 0.3 V
≈0 V
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES
(AO)
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
(B port to AO)
NOTES: A. CL includes probe and jig capacitance.
B. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control.
Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control.
C. All input pulses are supplied by generators having the following characteristics: PRR ≈ 10 MHz, ZO = 50 Ω, tr ≈ 2 ns, tf ≈ 2 ns.
D. The outputs are measured one at a time with one transition per measurement.
Figure 1. Load Circuits and Voltage Waveforms
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
13
SN74GTLP22033
8-BIT LVTTL-TO-GTLP ADJUSTABLE-EDGE-RATE REGISTERED TRANSCEIVER
WITH SPLIT LVTTL PORT AND FEEDBACK PATH
SCES354C – JUNE 2001 – REVISED SEPTEMBER 2001
DISTRIBUTED-LOAD BACKPLANE SWITCHING CHARACTERISTICS
The preceding switching characteristics table shows the switching characteristics of the device into a lumped load
(Figure 1). However, the designer’s backplane application is probably a distributed load. The physical representation
is shown in Figure 2. This backplane, or distributed load, can be closely approximated to a resistor inductance
capacitance (RLC) circuit, as shown in Figure 3. This device has been designed for optimum performance in this RLC
circuit. The following switching characteristics table shows the switching characteristics of the device into the RLC
load, to help the designer to better understand the performance of the GTLP device in this typical backplane. See
www.ti.com/sc/gtlp for more information.
1.5 V
1.5 V
.25”
ZO = 50 Ω
1”
1”
.25”
22 Ω
22 Ω
1.5 V
11 Ω
Conn.
Conn.
Conn.
Conn.
From Output
Under Test
1”
1”
1”
1”
Rcvr
Rcvr
Rcvr
Slot 2
Slot 19
Slot 20
LL = 14 nH
Test
Point
CL = 18 pF
Drvr
Slot 1
Figure 2. High-Drive Test Backplane
14
POST OFFICE BOX 655303
Figure 3. High-Drive RLC Network
• DALLAS, TEXAS 75265
SN74GTLP22033
8-BIT LVTTL-TO-GTLP ADJUSTABLE-EDGE-RATE REGISTERED TRANSCEIVER
WITH SPLIT LVTTL PORT AND FEEDBACK PATH
SCES354C – JUNE 2001 – REVISED SEPTEMBER 2001
switching characteristics over recommended operating conditions for the bus transceiver
function (unless otherwise noted) (see Figure 3)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
EDGE RATE†
tPLH
tPHL
AI
(buffer)
B
Sl
Slow
tPLH
tPHL
AI
(buffer)
B
F t
Fast
tPLH
tPHL
LEAB
(latch mode)
B
Sl
Slow
tPLH
tPHL
LEAB
(latch mode)
B
Fast
tPLH
tPHL
CLKAB
(flip-flop mode)
B
Sl
Slow
tPLH
tPHL
CLKAB
(flip-flop mode)
B
F t
Fast
tPLH
tPHL
OMODE
B
Sl
Slow
tPLH
tPHL
OMODE
B
F t
Fast
TYP‡
4.7
5
3.7
tr
time B-port
B port outputs (20% to 80%)
Rise time,
tf
Fall time
time, B
B-port
port outputs (80% to 20%)
4
5.5
5.8
4.6
4.8
5.8
6
4.9
4.9
5.5
5.7
4.5
4.7
Slow
1.8
Fast
1.1
Slow
3.4
Fast
2.6
UNIT
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
† Slow (ERC = H) and Fast (ERC = L)
‡ All typical values are at VCC = 3.3 V, TA = 25°C. All values are derived from TI-SPICE models.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
15
PACKAGE OPTION ADDENDUM
www.ti.com
10-Dec-2020
PACKAGING INFORMATION
Orderable Device
Status
(1)
Package Type Package Pins Package
Drawing
Qty
Eco Plan
(2)
Lead finish/
Ball material
MSL Peak Temp
Op Temp (°C)
Device Marking
(3)
(4/5)
(6)
SN74GTLP22033DGGR
ACTIVE
TSSOP
DGG
48
2000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
GTLP22033
(1)
The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2)
RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance
do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may
reference these types of products as "Pb-Free".
RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption.
Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of