MAX32_ _C_ _.....................................................0°C to +70°C
MAX32_ _E_ _ ..................................................-40°C to +85°C
Storage Temperature Range .............................-65°C to +160°C
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow) .......................................+260°C
Note 1:
V+ and V- can have maximum magnitudes of 7V, but their absolute difference cannot exceed 13V.
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(V
CC
= +3V to +5.5V, C1–C4 = 0.1µF, tested at 3.3V ±10%; C1 = 0.047µF, C2–C4 = 0.33µF, tested at 5.0V ±10%; T
A
= T
MIN
to T
MAX
,
unless otherwise noted. Typical values are at T
A
= +25°C.)
PARAMETER
Supply Current,
AutoShutdown Plus
Supply Current, Shutdown
Supply Current,
AutoShutdown Plus Disabled
LOGIC INPUTS AND RECEIVER OUTPUTS
Input Logic Threshold Low
Input Logic Threshold High
Transmitter Input Hysteresis
Input Leakage Current
Output Leakage Current
Output Voltage Low
Output Voltage High
RECEIVER INPUTS
Input Voltage Range
Input Threshold Low
Input Threshold High
Input Hysteresis
Input Resistance
2
SYMBOL
CONDITIONS
FORCEON = GND,
FORCEOFF
= V
CC
,
all R_IN idle, all T_IN idle
FORCEOFF
= GND
FORCEON =
FORCEOFF
= V
CC
, no load
MIN
TYP
MAX
UNITS
DC CHARACTERISTICS
(V
CC
= 3.3V or 5.0V, T
A
= +25°C)
1
1
0.3
10
10
1
µA
µA
mA
T_IN, FORCEON,
FORCEOFF
T_IN, FORCEON,
FORCEOFF
V
CC
= 3.3V
V
CC
= 5.0V
2
2.4
0.5
T_IN, FORCEON,
FORCEOFF
R_OUT (MAX3244/MAX3245), receivers
disabled
I
OUT
= 1.6mA
I
OUT
= -1.0mA
V
CC
- 0.6 V
CC
- 0.1
-25
T
A
= +25°C
T
A
= +25°C
V
CC
= 3.3V
V
CC
= 5.0V
V
CC
= 3.3V
V
CC
= 5.0V
3
0.6
0.8
1.2
1.5
1.5
1.8
0.5
T
A
= +25°C
5
±0.01
±0.05
0.8
V
V
V
±1
±10
0.4
µA
µA
V
V
+25
V
V
2.4
2.4
7
V
V
kΩ
Maxim Integrated
MAX3224–MAX3227/MAX3244/MAX3245
1µA Supply Current, 1Mbps, 3.0V to 5.5V,
RS-232 Transceivers with AutoShutdown Plus
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= +3V to +5.5V, C1–C4 = 0.1µF, tested at 3.3V ±10%; C1 = 0.047µF, C2–C4 = 0.33µF, tested at 5.0V ±10%; T
A
= T
MIN
to T
MAX
,
unless otherwise noted. Typical values are at T
A
= +25°C.)
PARAMETER
TRANSMITTER OUTPUTS
Output Voltage Swing
Output Resistance
Output Short-Circuit Current
Output Leakage Current
V
CC
= 0 or 3V to 5.5V, V
OUT
= ±12V,
Transmitters disabled
All transmitter outputs loaded with 3kΩ to
ground
V
CC
= V+ = V- = 0, transmitter outputs = ±2V
±5
300
±5.4
10M
±60
±25
V
Ω
mA
µA
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
MOUSE DRIVEABILITY
(MAX3244/MAX3245)
T1IN = T2IN = GND, T3IN = V
CC
,
T3OUT loaded with 3kΩ to GND,
Transmitter Output Voltage
T1OUT and T2OUT loaded with
2.5mA each
AutoShutdown Plus
(FORCEON = GND,
FORCEOFF
= V
CC
)
Receiver Input Threshold to
INVALID
Output High
Receiver Input Threshold to
INVALID
Output Low
INVALID,
READY
(MAX3224–MAX3227)
Output Voltage Low
INVALID,
READY
(MAX3224–MAX3227)
Output Voltage High
Receiver Positive or Negative
Threshold to
INVALID
High
Receiver Positive or Negative
Threshold to
INVALID
Low
Receiver or Transmitter Edge to
Transmitters Enabled
t
INVH
t
INVL
t
WU
Figure 4a
Figure 4a
Positive threshold
Negative threshold
-2.7
-0.3
0.3
±5
V
2.7
V
V
I
OUT
= -1.6mA
0.4
V
I
OUT
= -1.0mA
V
CC
- 0.6
V
V
CC
= 5V, Figure 4b
V
CC
= 5V, Figure 4b
V
CC
= 5V, Figure 5b (Note 2)
15
1
30
100
30
60
µs
µs
µs
s
Receiver or Transmitter Edge to
t
AUTOSHDN
V
CC
= 5V, Figure 5b (Note 2)
Transmitters Shutdown
Maxim Integrated
3
MAX3224–MAX3227/MAX3244/MAX3245
1µA Supply Current, 1Mbps, 3.0V to 5.5V,
RS-232 Transceivers with AutoShutdown Plus
TIMING CHARACTERISTICS—MAX3224/MAX3226/MAX3244
(V
CC
= +3V to +5.5V, C1–C4 = 0.1µF, tested at 3.3V ±10%; C1 = 0.047µF, C2–C4 = 0.33µF, tested at 5.0V ±10%; T
A
= T
MIN
to T
MAX
,
unless otherwise noted. Typical values are at T
A
= +25°C.)
PARAMETER
Maximum Data Rate
Receiver Propagation Delay
Receiver Output Enable Time
Receiver Output Disable Time
Transmitter Skew
Receiver Skew
⏐
t
PHL
- t
PLH
⏐
⏐
t
PHL
- t
PLH
⏐
t
PHL
t
PLH
SYMBOL
CONDITIONS
R
L
= 3kΩ, C
L
= 1000pF,
one transmitter switching
R_IN to R_OUT, C
L
= 150pF
Normal operation (MAX3244 only)
Normal operation (MAX3244 only)
(Note 3)
C
L
= 150pF
to 1000pF
C
L
= 150pF
to 2500pF
MIN
250
0.15
0.15
200
200
100
50
V
CC
= 3.3V, T
A
= +25°C,
R
L
= 3kΩ to 7kΩ,
measured from +3V to -3V
or -3V to +3V
6
4
30
V/µs
30
TYP
MAX
UNITS
kbps
µs
ns
ns
ns
ns
Transition-Region Slew Rate
TIMING CHARACTERISTICS—MAX3225/MAX3227/MAX3245
(V
CC
= +3V to +5.5V, C1–C4 = 0.1µF, tested at 3.3V ±10%; C1 = 0.047µF, C2–C4 = 0.33µF, tested at 5.0V ±10%; T
A
= T
MIN
to T
MAX
,
unless otherwise noted. Typical values are at T
A
= +25°C.)
PARAMETER
SYMBOL
CONDITIONS
R
L
= 3kΩ, C
L
= 1000pF,
one transmitter switching
Maximum Data Rate
V
CC
= 3.0V to 4.5V, R
L
= 3kΩ,
C
L
= 250pF, one transmitter switching
V
CC
= 4.5V to 5.5V, R
L
= 3kΩ,
C
L
= 1000pF, one transmitter switching
Receiver Propagation Delay
Receiver Output Enable Time
Receiver Output Disable Time
Transmitter Skew
Receiver Skew
Transition-Region Slew Rate
⏐
t
PHL
- t
PLH
⏐
⏐
t
PHL
- t
PLH
⏐
t
PHL
t
PLH
R_IN to R_OUT, C
L
= 150pF
Normal operation (MAX3245 only)
Normal operation (MAX3245 only)
(Note 3)
V
CC
= 3.3V, T
A
= +25°C,
R
L
= 3kΩ to 7kΩ, C
L
= 150pF to 1000pF,
measured from +3V to -3V or -3V to +3V
MIN
250
1000
1000
0.15
0.15
200
200
25
50
24
150
µs
ns
ns
ns
ns
V/µs
kbps
TYP
MAX
UNITS
Note 2:
A transmitter/receiver edge is defined as a transition through the transmitter/receiver input logic thresholds.
Note 3:
Transmitter skew is measured at the transmitter zero cross points.
Program function: The module reuse enhancement function realizes three functions: function 1: fast reuse of modules within the board; function 2: fast reuse between boards according to schematic pages...
VIA Lab's VL813 is an advanced 4-port USB 3.0 hub controller with fully integrated voltage regulators, low power consumption, and comprehensive USB charging support. The integrated 5V DC-DC switching ...
The above figure is the circuit diagram of the metal detector. The 555 timer acts as a square wave generator here, which generates a pulse frequency that humans can hear. The capacitor between pin 1 a...
Linear regulator (LDO) means low-dropout. In recent years, some manufacturers have launched high-input voltage LDOs, with input voltages as high as 80V. Under high-voltage dropout conditions, the effi...
I am developing a small speaker recently. Its function is very simple. It has Bluetooth connection and power amplifier. The power is about 2.5W. The Bluetooth main controller is AC6969D, and the power...
According to foreign media reports, Morgan Stanley analyst Kathryn Huberty recently released a report saying that the release of Microsoft Windows 7 has greatly promoted the growth of PC sales. Accord...
introduction
my country has a vast territory and a large population. The scale of housing construction is huge, and the amount of residential construction is large and wide. It is still on t...[Details]
Do you often have to add brake fluid to your car's brakes? The fact that you need to pump out the brake fluid to make sure there is no gas in the brake fluid line may not be done by the car owner h...[Details]
No matter which processor you are learning, the first thing you need to understand is the registers and working mode of the processor.
ARM has 37 registers, including 31 general registers and ...[Details]
The Mobile Industry Processor Interface (MIPI) Alliance is an organization responsible for promoting the standardization of software and hardware in mobile devices. It has released the D-PHY specif...[Details]
For a long time, due to the limitation of hardware conditions, the display devices of traditional small handheld devices such as PDA are usually monochrome LCD, and the user interface is very simpl...[Details]
In recent years, lighting has become an important area that countries around the world are targeting to promote energy conservation and environmental protection. According to statistics, about 20% ...[Details]
Images in science fiction movies often break through the limits of reality, such as in the movie "Minority Report." Tom Cruise uses a multi-touch screen to browse information. Capacitive sensing te...[Details]
1 Introduction
As an emerging microfabrication technology, micro-electromechanical system (MEMS) technology has begun to be applied in various fields. It can integrate functions such as inform...[Details]
1. Principle of displacement angle sensor
The angle sensor is used to detect angles. It has a hole in its body that fits the LEGO axle. When connected to the RCX, the angle sensor counts once ...[Details]
1 Introduction
Ultrasonic waves have strong directivity, slow energy consumption, and can propagate over long distances in a medium, so they are used for distance measurement. Ultrasonic detec...[Details]
Editor's note: In order to help technicians or engineers who have knowledge of PIC microcontroller assembly language quickly master the method of using C language to program PIC microcontrollers, t...[Details]
1 Introduction
Intelligent control instruments are one of the most commonly used controllers in industrial control. They are mainly aimed at a specific parameter (such as pressure, tempera...[Details]
Xiaomi, a well-known Internet phone in mainland China, won a million-unit order contract from China Unicom on November 20 last year, which made Xiaomi famous in mainland China. In April this year...[Details]
On the afternoon of July 10, Beijing time, Taiwan's largest chip designer MediaTek expects its smartphone chip shipments to grow by double digits in the third quarter of this year, and the company is ...[Details]
PCB Design
京公网安备 11010802033920号
EEWORLD
