SGM4554 [SGMICRO]
1-Bit Bidirectional Voltage-Level Translator with Auto Direction Sensing;
| 型号： | SGM4554 |
| 厂家： | 
Shengbang Microelectronics Co, Ltd |
| 描述： | 1-Bit Bidirectional Voltage-Level Translator with Auto Direction Sensing |
| 文件： | 总17页 (文件大小：770K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SGM4554
1-Bit Bidirectional Voltage-Level
Translator with Auto Direction Sensing
GENERAL DESCRIPTION
FEATURES
The SGM4554 is a 1-bit, non-inverting, bidirectional
voltage-level translator which features two independent
configurable power-supply lines. The A and B ports
track the VCCA supply and VCCB supply respectively. The
supply voltage range is 1.2V to 5.0V for A port and
1.65V to 5.5V for B port. The device provides a
bidirectional translation function among the different
voltage nodes (including 1.2V, 1.5V, 1.8V, 2.5V, 3.3V
and 5V).
● Power Supply Voltage Range (VCCA ≤ VCCB
A Port: 1.2V to 5.0V
)
B Port: 1.65V to 5.5V
● Support VCCA or VCCB Isolation
When VCCA or VCCB is Low, Device Enters
Power-Down Mode
● OE Input Circuit Referenced to VCCA
● Support Partial-Power-Down Function
● Support Push-Pull Output
● Low Power Consumption
The SGM4554 has an output enable (OE) function,
which controls the outputs states. When OE goes low,
all outputs enter into the high-impedance state. The OE
should be connected to GND via a pull-down resistor,
and the minimum resistor value is depended on the
current source capability of the driver.
● -40℃ to +85℃ Operating Temperature Range
● Available in Green UTDFN-1.45×1-6L and SC70-6
Packages
APPLICATIONS
Universal Asynchronous Receiver/Transmitter
General Purpose I/O (GPIO)
The SGM4554 is available in Green UTDFN-1.45×1-6L
and SC70-6 packages. It operates over an ambient
temperature range of -40℃ to +85℃.
TYPICAL APPLICATION
3.3V
1.8V
0.1μF
0.1μF
VCCA
VCCB
1.8V
3.3V
Controller
Controller
OE
SGM4554
I/O
A
B
I/O
GND
GND
GND
Figure 1. Typical Application Circuit
SG Micro Corp
MAY 2023 – REV. A. 1
www.sg-micro.com
1-Bit Bidirectional Voltage-Level
SGM4554
Translator with Auto Direction Sensing
PACKAGE/ORDERING INFORMATION
SPECIFIED
TEMPERATURE
RANGE
PACKAGE
DESCRIPTION
ORDERING
NUMBER
PACKAGE
MARKING
PACKING
OPTION
MODEL
SC70-6
SGM4554YC6G/TR
SM1XX
N7X
Tape and Reel, 3000
Tape and Reel, 5000
-40℃ to +85℃
-40℃ to +85℃
SGM4554
UTDFN-1.45×1-6L
SGM4554YUDL6G/TR
MARKING INFORMATION
NOTE: X = Date Code. XX = Date Code.
SC70-6
UTDFN-1.45×1-6L
YYY X X
YY X
Date Code - Month
Date Code - Year
Serial Number
Date Code - Year
Serial Number
Green (RoHS & HSF): SG Micro Corp defines "Green" to mean Pb-Free (RoHS compatible) and free of halogen substances. If
you have additional comments or questions, please contact your SGMICRO representative directly.
ABSOLUTE MAXIMUM RATINGS
Supply Voltage Range
RECOMMENDED OPERATING CONDITIONS
Operating Temperature Range....................... -40℃ to +85℃
V
CCA, VCCB .......................................................... -0.3V to 6V
(1)
Input Voltage Range, VI
................................. -0.3V to 6V
OVERSTRESS CAUTION
Output Voltage Range for the High-Impedance or Power-Off
Stresses beyond those listed in Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to
absolute maximum rating conditions for extended periods
may affect reliability. Functional operation of the device at any
conditions beyond those indicated in the Recommended
Operating Conditions section is not implied.
(1)
State, VO
A Port................................................................. -0.3V to 6V
B Port................................................................. -0.3V to 6V
(1) (2)
Output Voltage Range for the High or Low State, VO
A Port...................................................-0.3V to VCCA + 0.3V
B Port...................................................-0.3V to VCCB + 0.3V
Input Clamp Current, IIK (VI < 0) .................................-50mA
Output Clamp Current, IOK (VO < 0) ............................-50mA
Continuous Output Current, IO ....................................±50mA
Continuous Current through VCCA, VCCB, or GND
ESD SENSITIVITY CAUTION
This integrated circuit can be damaged by ESD if you don’t
pay attention to ESD protection. SGMICRO recommends that
all integrated circuits be handled with appropriate precautions.
Failureto observe proper handlingand installation procedures
can cause damage. ESD damage can range from subtle
performance degradation tocomplete device failure. Precision
integrated circuits may be more susceptible to damage
because very small parametric changes could cause the
device not to meet its published specifications.
..................................................................................±100mA
Junction Temperature.................................................+150℃
Storage Temperature Range.......................-65℃ to +150℃
Lead Temperature (Soldering, 10s) ..........................+260℃
ESD Susceptibility
HBM.............................................................................4000V
MM.................................................................................400V
DISCLAIMER
SG Micro Corp reserves the right to make any change in
NOTES:
1. When the input and output current ratings are observed,
the input and I/O negative voltage ratings may be exceeded.
2. VCCA and VCCB values are shown in the recommended
operating conditions in Electrical Characteristics section.
circuit design, or specifications without prior notice.
SG Micro Corp
www.sg-micro.com
MAY 2023
2
1-Bit Bidirectional Voltage-Level
SGM4554
Translator with Auto Direction Sensing
PIN CONFIGURATIONS
(TOP VIEW)
(TOP VIEW)
VCCB
OE
B
VCCA
GND
A
1
2
3
6
5
4
VCCB
VCCA
GND
A
1
2
3
6
5
4
OE
B
SC70-6
UTDFN-1.45×1-6L
PIN DESCRIPTION
PIN
NAME
FUNCTION
SC70-6
UTDFN-1.45×1-6L
Supply Voltage on A Port. It can be operated from 1.2V to 5.0V, and VCCA is
1
6
VCCA
always ≤ VCCB
.
2
3
4
5
4
3
GND
A
Ground.
Input/Output A. It tracks the VCCA supply.
Input/Output B. It tracks the VCCB supply.
B
Output Enable Control Pin. Active high. When OE goes low, all outputs
enter into the high-impedance state. It tracks the VCCA supply.
5
6
2
1
OE
VCCB
Supply Voltage on B Port. It can be operated from 1.65V to 5.5V.
SG Micro Corp
www.sg-micro.com
MAY 2023
3
1-Bit Bidirectional Voltage-Level
SGM4554
Translator with Auto Direction Sensing
ELECTRICAL CHARACTERISTICS
(Full = -40℃ to +85℃, typical values are at TA = +25℃, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
TEMP
MIN
TYP
MAX
UNITS
Recommended Operating Conditions (1)
VCCA
1.2
5.0
5.5
Supply Voltage
VCCB
V
V
1.65
VCCI
0.85
VCCA
0.85
×
Data Inputs
VCCA = 1.2V to 5.0V, VCCB = 1.65V to 5.5V
VCCA = 1.2V to 5.0V, VCCB = 1.65V to 5.5V
VCCA = 1.2V to 5.0V, VCCB = 1.65V to 5.5V
VCCA = 1.2V to 5.0V, VCCB = 1.65V to 5.5V
VCCI
5.5
High-Level
VIH
Input Voltage
×
OE Input
VCCI
0.2
VCCA
0.2
×
Data Inputs
0
0
Low-Level
VIL
V
Input Voltage
×
OE Input
A Port Input
VCCA = 1.2V to 5.0V, VCCB = 1.65V to 5.5V
VCCA = 1.2V to 5.0V, VCCB = 1.65V to 5.5V
40
40
Input Transition
Rise or Fall Rate
Δt/ΔV
ns/V
B Port Input
Electrical Characteristics(1) (2)
VCCA = 1.2V
IOH = -20µA
1.05
0.1
+25℃
Full
A Port High-Level Output Voltage
A Port Low-Level Output Voltage
VOHA
VCCA = 1.4V to 5.0V
VCCA - 0.4
VCCA = 1.2V
IOL = 20µA
+25℃
Full
VOLA
V
VCCA = 1.4V to 5.0V
0.4
B Port High-Level Output Voltage
B Port Low-Level Output Voltage
VOHB
VOLB
IOH = -20µA
IOL = 20µA
VCCB = 1.65V to 5.5V
VCCB = 1.65V to 5.5V
Full
VCCB - 0.4
Full
0.4
±1
+25℃
Full
Input Leakage
OE
VCCA = 1.2V to 5.0V,
VCCB = 1.65V to 5.5V
II
Current
±1.5
±0.5
±1
+25℃
Full
VI or VO = 0V to 5.0V,
CCA = 0V, VCCB = 0V to 5.5V
A Port
Power-Off Leakage
Current
V
IOFF
μA
±0.5
±1
+25℃
Full
VI or VO = 0V to 5.5V,
CCA = 0V to 5.0V, VCCB = 0V
B Port
V
±0.5
±1
+25℃
Full
3-State Output
A or B Port
Leakage
OE = GND, VCCA = 1.2V to 5.0V,
IOZ
V
CCB = 1.65V to 5.5V
V
V
CCA = 1.2V,
CCB = 1.65V to 5.5V
0.1
+25℃
VCCA = 1.4V to 5.0V,
CCB = 1.65V to 5.5V
10
10
-1
V
VI = VCCI or GND,
ICCA
μA
I
O = 0A
VCCA = 5.0V,
CCB = 0V
Full
V
VCCA = 0V,
V
CCB = 5.5V
Quiescent Supply Current
V
V
CCA = 1.2V,
CCB = 1.65V to 5.5V
1
+25℃
Full
VCCA = 1.4V to 5.0V,
CCB = 1.65V to 5.5V
10
-1
V
VI = VCCI or GND,
O = 0A
ICCB
μA
I
VCCA = 5.0V,
CCB = 0V
V
VCCA = 0V,
CCB = 5.5V
10
V
NOTES:
1. VCCI is the supply voltage associated with the input port.
2. VCCO is the supply voltage associated with the output port.
SG Micro Corp
www.sg-micro.com
MAY 2023
4
1-Bit Bidirectional Voltage-Level
SGM4554
Translator with Auto Direction Sensing
ELECTRICAL CHARACTERISTICS (continued)
(Full = -40℃ to +85℃, typical values are at TA = +25℃, unless otherwise noted.)
PARAMETER
Quiescent Supply Current
OE Input Capacitance ()
SYMBOL
CONDITIONS
TEMP
MIN
TYP
MAX
UNITS
VCCA = 1.2V,
1
+25℃
V
CCB = 1.65V to 5.5V
VI = VCCI or GND,
ICCA + ICCB
μA
I
O = 0A
VCCA = 1.4V to 5.0V,
Full
+25℃
Full
15
V
CCB = 1.65V to 5.5V
V
V
CCA = 1.2V,
CCB = 1.65V to 5.5V
0.1
0.1
VI = VCCI or GND,
O = 0A,
ICCZA
I
μA
VCCA = 1.4V to 5.0V,
OE = GND
10
10
V
CCB = 1.65V to 5.5V
V
V
CCA = 1.2V,
CCB = 1.65V to 5.5V
+25℃
VI = VCCI or GND,
ICCZB
I
O = 0A,
μA
pF
pF
VCCA = 1.4V to 5.0V,
CCB = 1.65V to 5.5V
OE = GND
Full
V
CI
VCCA = 1.2V to 5.0V, VCCB = 1.65V to 5.5V
4
+25℃
A Port
B Port
4.5
Input/Output
Capacitance
CIO
VCCA = 1.2V to 5.0V, VCCB = 1.65V to 5.5V
+25℃
4.5
TIMING REQUIREMENTS
(TA = +25℃, unless otherwise noted.)
VCCB = 1.8V
VCCB = 2.5V
TYP
VCCB = 3.3V
TYP
VCCB = 5V
PARAMETER
SYMBOL
UNITS
TYP
TYP
(VCCA = 1.2V)
Data Rate
20
50
20
50
20
50
20
50
Mbps
ns
Pulse Duration
(Data Inputs)
tW
tW
tW
tW
tW
tW
(VCCA = 1.5V)
Data Rate
40
25
40
25
40
25
40
25
Mbps
ns
Pulse Duration
(Data Inputs)
(VCCA = 1.8V)
Data Rate
60
17
60
17
60
17
60
17
Mbps
ns
Pulse Duration
(Data Inputs)
(VCCA = 2.5V)
Data Rate
100
10
100
10
100
10
Mbps
ns
Pulse Duration
(Data Inputs)
(VCCA = 3.3V)
Data Rate
100
10
100
10
Mbps
ns
Pulse Duration
(Data Inputs)
(VCCA = 5V)
Data Rate
100
10
Mbps
ns
Pulse Duration
(Data Inputs)
SG Micro Corp
www.sg-micro.com
MAY 2023
5
1-Bit Bidirectional Voltage-Level
SGM4554
Translator with Auto Direction Sensing
SWITCHING CHARACTERISTICS
(VCCA = 1.2V, TA = +25℃, unless otherwise noted.)
VCCB = 1.8V
TYP
22.1
31.1
29.8
22.8
66.9
48.2
32.6
62.7
1161
521
VCCB = 2.5V
TYP
20.7
29.3
29.7
19.9
67.3
47.6
28.8
60.5
1170
524
VCCB = 3.3V
TYP
19.9
29.9
25.1
20.1
66.7
47.2
28.5
61.5
1165
528
VCCB = 5V
TYP
19.4
31.5
30.6
18.2
65.8
46.2
29.6
63.7
1168
529
PARAMETER
SYMBOL
CONDITIONS
UNITS
tPLH
tPHL
A to B
Propagation Delay
tPD
ns
tPLH
tPHL
tPZH
tPZL
tPZH
tPZL
tPHZ
tPLZ
tPHZ
tPLZ
B to A
OE to A
OE to B
OE to A
OE to B
Enable Time
tEN
ns
ns
Disable Time
Rise Time
tDIS
1135
532
1166
567
1180
578
1186
563
trA
trB
tfA
tfB
A port
B port
A port
B port
21.9
3.9
21.6
2.3
20.0
1.9
18.8
1.6
ns
ns
5.9
6.3
5.2
3.9
ns
Fall Time
2.3
1.9
1.7
1.6
ns
Data Rate
20
20
20
20
Mbps
SWITCHING CHARACTERISTICS (continued)
(VCCA = 1.5V, TA = +25℃, unless otherwise noted.)
VCCB = 1.8V
TYP
14.8
15.1
13.0
11.9
28.9
27.6
22.8
31.2
1141
536
VCCB = 2.5V
VCCB = 3.3V
TYP
13.2
11.7
11.5
9.5
VCCB = 5V
TYP
12.5
12.9
10.8
8.3
PARAMETER
SYMBOL
CONDITIONS
UNITS
TYP
14.2
12.3
13.6
9.9
tPLH
tPHL
A to B
Propagation Delay
tPD
ns
tPLH
tPHL
tPZH
tPZL
tPZH
tPZL
tPHZ
tPLZ
tPHZ
tPLZ
B to A
29.0
23.3
18.4
26.8
1132
531
1151
558
7.9
28.8
22.2
17.4
26.5
1139
535
28.6
21.7
17.1
26.6
1138
534
OE to A
OE to B
OE to A
OE to B
Enable Time
tEN
ns
ns
Disable Time
Rise Time
tDIS
1112
530
1165
568
1173
553
trA
trB
tfA
tfB
A port
B port
A port
B port
7.7
8.4
8.2
ns
ns
4.0
2.3
1.8
1.5
3.1
2.9
3.0
2.4
ns
Fall Time
2.3
2.0
1.8
1.6
ns
Data Rate
40
40
40
40
Mbps
SG Micro Corp
www.sg-micro.com
MAY 2023
6
1-Bit Bidirectional Voltage-Level
SGM4554
Translator with Auto Direction Sensing
SWITCHING CHARACTERISTICS (continued)
(VCCA = 1.8V, TA = +25℃, unless otherwise noted.)
VCCB = 1.8V
TYP
11.3
11.0
8.6
VCCB = 2.5V
VCCB = 3.3V
TYP
11.4
8.0
VCCB = 5V
TYP
10.6
8.4
PARAMETER
SYMBOL
CONDITIONS
UNITS
TYP
12.3
8.8
tPLH
tPHL
A to B
Propagation Delay
tPD
ns
tPLH
tPHL
tPZH
tPZL
tPZH
tPZL
tPHZ
tPLZ
tPHZ
tPLZ
10.6
6.8
9.1
7.4
B to A
9.2
8.0
5.7
19.0
21.7
20.1
22.6
1170
541
19.0
17.9
15.6
19.2
1169
540
1142
560
4.6
19.0
16.5
14.6
18.7
1170
541
19.1
15.8
14.0
18.5
1170
542
1166
554
3.9
OE to A
OE to B
OE to A
OE to B
Enable Time
tEN
ns
ns
Disable Time
Rise Time
tDIS
1099
533
1157
566
trA
trB
tfA
tfB
A port
B port
A port
B port
4.8
4.4
ns
ns
4.3
2.3
1.8
1.6
2.3
2.6
2.5
2.3
ns
Fall Time
2.3
2.1
1.8
2.2
ns
Data Rate
60
60
60
60
Mbps
SWITCHING CHARACTERISTICS (continued)
(VCCA = 2.5V, TA = +25℃, unless otherwise noted.)
VCCB = 2.5V
VCCB = 3.3V
TYP
7.1
VCCB = 5V
PARAMETER
SYMBOL
CONDITIONS
UNITS
TYP
9.4
TYP
5.2
tPLH
A to B
tPHL
tPLH
tPHL
tPZH
tPZL
tPZH
tPZL
tPHZ
tPLZ
tPHZ
tPLZ
6.1
5.7
5.1
Propagation Delay
tPD
tEN
tDIS
ns
ns
ns
7.8
5.5
4.6
B to A
5.7
5.2
3.6
13.0
14.4
13.7
14.5
1188
571
1127
566
2.6
12.7
13.0
12.5
14.1
1188
571
13.0
12.2
12.1
13.4
1189
573
1158
553
3.7
OE to A
OE to B
OE to A
OE to B
Enable Time
Disable Time
Rise Time
1151
570
trA
trB
tfA
tfB
A port
B port
A port
B port
3.2
ns
ns
2.2
2.2
2.3
2.4
2.6
2.7
ns
Fall Time
1.8
2.2
1.8
ns
Data Rate
100
100
100
Mbps
SG Micro Corp
www.sg-micro.com
MAY 2023
7
1-Bit Bidirectional Voltage-Level
SGM4554
Translator with Auto Direction Sensing
SWITCHING CHARACTERISTICS (continued)
(VCCA = 3.3V, TA = +25℃, unless otherwise noted.)
VCCB = 3.3V
VCCB = 5V
TYP
4.1
PARAMETER
SYMBOL
CONDITIONS
UNITS
TYP
6.2
tPLH
A to B
tPHL
tPLH
tPHL
tPZH
tPZL
tPZH
tPZL
tPHZ
tPLZ
tPHZ
tPLZ
5.0
4.0
Propagation Delay
tPD
tEN
tDIS
ns
5.0
3.7
B to A
4.6
3.0
11.5
12.3
11.8
12.4
1196
583
1139
578
5.8
11.0
11.3
11.5
11.7
1190
584
1150
557
2.8
OE to A
OE to B
OE to A
OE to B
Enable Time
ns
ns
Disable Time
Rise Time
trA
trB
tfA
tfB
A port
B port
A port
B port
ns
ns
1.9
1.7
4.4
2.3
ns
Fall Time
2.0
2.1
ns
Data Rate
100
100
Mbps
SWITCHING CHARACTERISTICS (continued)
(VCCA = 5V, TA = +25℃, unless otherwise noted.)
VCCB = 5V
PARAMETER
SYMBOL
CONDITIONS
UNITS
TYP
3.5
tPLH
tPHL
A to B
2.9
Propagation Delay
tPD
ns
ns
ns
tPLH
tPHL
tPZH
tPZL
tPZH
tPZL
tPHZ
tPLZ
tPHZ
tPLZ
3.0
B to A
2.6
11.5
11.7
11.3
10.7
1196
578
1146
559
3.4
OE to A
OE to B
OE to A
OE to B
Enable Time
tEN
Disable Time
Rise Time
tDIS
trA
trB
tfA
tfB
A port
B port
A port
B port
ns
ns
1.7
3.1
ns
Fall Time
1.7
ns
Data Rate
100
Mbps
SG Micro Corp
www.sg-micro.com
MAY 2023
8
1-Bit Bidirectional Voltage-Level
SGM4554
Translator with Auto Direction Sensing
OPERATING CHARACTERISTICS
(TA = +25℃, unless otherwise noted.)
VCCA
1.2V
1.2V
1.5V
1.8V
2.5V
VCCB
2.5V
TYP
2.5V
3.3V
3.3V
5V
PARAMETER
CONDITIONS
UNITS
5V
1.8V
TYP
1.8V
TYP
1.8V
TYP
5V
3.3V
TYP
5V
5V
TYP
TYP
TYP
TYP
A Port Input,
B Port Output
61
9
56
9
13
9
6
9
7
9
7
9
8
9
8
9
9
pF
pF
pF
pF
pF
pF
pF
pF
CPDA
CPDB
CPDA
CPDB
CL = 0,
f = 10MHz,
tr = tf = 1ns,
OE = VCCA
B Port Input,
A Port Output
10
A Port Input,
B Port Output
10
9
9
9
9
9
9
9
9
(Outputs Enabled)
B Port Input,
A Port Output
20
92
7
7
7
9
8
9
10
A Port Input,
B Port Output
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
CL = 0,
B Port Input,
A Port Output
f = 10MHz,
tr = tf = 1ns,
OE = GND
(Outputs Disabled)
A Port Input,
B Port Output
B Port Input,
A Port Output
SG Micro Corp
www.sg-micro.com
MAY 2023
9
1-Bit Bidirectional Voltage-Level
SGM4554
Translator with Auto Direction Sensing
WAVEFORMS
50% VCCI
Input
VCCI
tPLH
tPHL
Input
VCCI/2
VCCI/2
0V
tW
50% VCCO
Output
Figure 3. Pulse Duration
Figure 2. Propagation Delay
VCCA
OE Control
VCCA/2
VCCA/2
0V
90% VCCO
tPZL
tPLZ
VCCO
Output Waveform A (1)
EXT at 2 × VCCO
tF
tR
VCCO/2
V
0.1 × VCCO
VOL
Output
10% VCCO
tPZH
tPHZ
VOH
0V
Output Waveform B (1)
VEXT Open
0.9 × VOH
VOH/2
Figure 4. Rise Time and Fall Time of Data Output
NOTE:
1. Waveform A indicates an output that is high except for OE
is high. Waveform B indicates an output that is low except for
OE is high.
Figure 5. Enable and Disable Times
SG Micro Corp
www.sg-micro.com
MAY 2023
10
1-Bit Bidirectional Voltage-Level
SGM4554
Translator with Auto Direction Sensing
TEST CIRCUIT
VCCI
VCCO
VEXT
RL
VI
VO
SGM4554
CL
RL
Definitions for test circuit:
RL = Load resistance.
CL = Load capacitance includes jig and probe capacitance.
VEXT = External voltage for measuring switching times.
VCCI = Supply voltage associated with the input.
VCCO = Supply voltage associated with the output.
Figure 6. Test Circuit for Measuring Switching Times
SG Micro Corp
www.sg-micro.com
MAY 2023
11
1-Bit Bidirectional Voltage-Level
SGM4554
Translator with Auto Direction Sensing
APPLICATION INFORMATION
Applications
Input Driver Requirements
For the application of the SGM4554, it is often used in the
Figure 8 shows a typical VIN vs. IIN curve. To ensure proper
operation, the SGM4554 data I/Os must be driven by a device
with a drive strength of at least ±2mA.
voltage-level translation system.
Architecture
IIN
The SGM4554 can switch the direction of the transmission for
port A and port B automatically without any external control.
The output drivers can keep high or low in a DC state,
however, they are designed to be weak so that they can be
overdriven by external drivers when the data on the bus starts
flowing in the opposite direction.
VT/4kΩ
Figure 7 shows the architecture of an SGM4554 cell. The
main explanation of the internal circuit for the SGM4554 is
shown as below:
VIN
The one-shot circuitry can be used to detect the rising
edges or the falling edges of the signal for port A and port
B automatically.
-(VD - VT)/4kΩ
When in the rising edge, two PMOSFETs (T1 and T3) are
turned on by one-shot in a short time. The feature speeds
up the transition from low to high.
NOTES:
1. VT = Input threshold voltage (typically VCCI/2).
2. VD = External driver supply voltage.
When in the falling edge, two NMOSFETs (T2 and T4) are
turned on by one-shot in a short time. The feature speeds
up the transition from high to low.
Figure 8. Typical VIN vs. IIN Curve
Power-Up
The output impedance is 140Ω (TYP) when VCCO voltage
range is from 1.2V to 1.8V, it is 50Ω (TYP) when VCCO
voltage range is from 1.8V to 3.3V and 40Ω (TYP) when
For the application of the SGM4554, the VCCA should be less
than VCCB. However, it does not matter if the power supply
voltage is ramping, and the sequence of power-up for both
VCCA and VCCB is not defined. The SGM4554 has a circuitry
that disables all output ports when either VCC is switched off
(VCCA/VCCB = 0V).
VCCO voltage range is from 3.3V to 5V.
VCCA
VCCB
Enable and Disable
The function of OE is used to disable SGM4554 by setting the
transmitting I/O pins to high-impedance mode. The definition
of disable time (tDIS) is the time period between OE goes low
One-Shot
T1
B
and when all of the I/O pins are in high-impedance mode. The
4kΩ
enable time (tEN) is defined as the time period between OE
goes to high position and one-shot part starts to operate.
One-Shot
T2
One-Shot
One-Shot
T3
T4
Pull-Up or Pull-Down Resistors on I/O Lines
The SGM4554 features the drive capability that is designed to
drive up to 70pF capacitive loads. The output drivers have the
low DC drive strength. When the data I/Os are externally
connected to the pull-up or pull-down resistors, the values
must be greater than 50kΩ to ensure that they don’t conflict
with the output driver. Therefore, the SGM4554 is not used in
one-wire or I2C applications. For the bidirectional data I/Os,
an open-drain driver is connected. For these applications,
please use the open-drain output SGM4552 which is
pin-compatible with the SGM4554.
A
4kΩ
Figure 7. Architecture of an SGM4554 I/O Cell
SG Micro Corp
www.sg-micro.com
MAY 2023
12
1-Bit Bidirectional Voltage-Level
SGM4554
Translator with Auto Direction Sensing
REVISION HISTORY
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
MAY 2023 ‒ REV.A to REV.A.1
Page
Updated Package Outline Dimensions section ..................................................................................................................................................14
Changes from Original (AUGUST 2014) to REV.A
Page
Changed from product preview to production data.............................................................................................................................................All
SG Micro Corp
www.sg-micro.com
MAY 2023
13
PACKAGE INFORMATION
PACKAGE OUTLINE DIMENSIONS
SC70-6
D
e1
0.65
e
E1
E
1.9
0.75
0.4
b
1.3
RECOMMENDED LAND PATTERN (Unit: mm)
L
L1
A
c
A1
A2
θ
0.20
Dimensions
Dimensions
In Millimeters
In Inches
Symbol
MIN
MAX
1.100
0.100
1.000
0.350
0.220
2.200
1.350
2.450
MIN
MAX
0.043
0.004
0.039
0.014
0.009
0.087
0.053
0.096
A
A1
A2
b
0.800
0.000
0.800
0.150
0.080
2.000
1.150
2.150
0.031
0.000
0.031
0.006
0.003
0.079
0.045
0.085
c
D
E
E1
e
0.65 TYP
1.300 BSC
0.525 REF
0.026 TYP
0.051 BSC
0.021 REF
e1
L
L1
θ
0.260
0°
0.460
8°
0.010
0°
0.018
8°
NOTES:
1. Body dimensions do not include mode flash or protrusion.
2. This drawing is subject to change without notice.
SG Micro Corp
TX00044.001
www.sg-micro.com
PACKAGE INFORMATION
PACKAGE OUTLINE DIMENSIONS
UTDFN-1.45×1-6L
e
D
N6
E
L
N1
b
TOP VIEW
BOTTOM VIEW
0.30
0.49
A
0.75
A1
SIDE VIEW
0.5
A2
RECOMMENDED LAND PATTERN (Unit: mm)
Dimensions
In Millimeters
Dimensions
In Inches
Symbol
MIN
MAX
0.550
0.050
MIN
0.018
0.000
MAX
0.022
0.002
A
A1
A2
D
0.450
0.000
0.150 REF
0.500 TYP
0.006 REF
0.020 TYP
1.374
0.924
0.180
1.526
1.076
0.300
0.054
0.036
0.007
0.060
0.042
0.012
E
b
e
L
0.274
0.426
0.011
0.017
NOTE: This drawing is subject to change without notice.
SG Micro Corp
TX00069.000
www.sg-micro.com
PACKAGE INFORMATION
TAPE AND REEL INFORMATION
REEL DIMENSIONS
TAPE DIMENSIONS
P2
P0
W
Q2
Q4
Q2
Q4
Q2
Q4
Q1
Q3
Q1
Q3
Q1
Q3
B0
Reel Diameter
P1
A0
K0
Reel Width (W1)
DIRECTION OF FEED
NOTE: The picture is only for reference. Please make the object as the standard.
KEY PARAMETER LIST OF TAPE AND REEL
Reel Width
Reel
Diameter
A0
B0
K0
P0
P1
P2
W
Pin1
Package Type
W1
(mm)
(mm) (mm) (mm) (mm) (mm) (mm) (mm) Quadrant
SC70-6
7″
7″
9.5
9.5
2.40
1.15
2.50
1.60
1.20
0.75
4.0
4.0
4.0
4.0
2.0
2.0
8.0
8.0
Q3
Q1
UTDFN-1.45×1-6L
SG Micro Corp
TX10000.000
www.sg-micro.com
PACKAGE INFORMATION
CARTON BOX DIMENSIONS
NOTE: The picture is only for reference. Please make the object as the standard.
KEY PARAMETER LIST OF CARTON BOX
Length
(mm)
Width
(mm)
Height
(mm)
Reel Type
Pizza/Carton
7″ (Option)
7″
368
442
227
410
224
224
8
18
SG Micro Corp
www.sg-micro.com
TX20000.000
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