MAX562 Fast Delivery |IC PHOENIX CO.,LIMITED

MAX562 ,Complete 230kbps, 2.7V to 5.25V Serial Interface for Notebook ComputersApplicationsMAX562CWI 0°C to +70°C 28 SOPalmtop, Notebook, and SubnotebookMAX562CAI 0°C to +70°C 28 ..
MAX562CAI ,Complete 230kbps, 2.7V to 5.25V Serial Interface for Notebook ComputersApplicationsMAX562CWI 0°C to +70°C 28 SOPalmtop, Notebook, and SubnotebookMAX562CAI 0°C to +70°C 28 ..
MAX562CAI ,Complete 230kbps, 2.7V to 5.25V Serial Interface for Notebook ComputersGeneral Description ________
MAX562CAI+ ,Complete 230kbps, 2.7V to 5.25V Serial Interface for Notebook ComputersApplicationsMAX562CWI 0°C to +70°C 28 SOPalmtop, Notebook, and SubnotebookMAX562CAI 0°C to +70°C 28 ..
MAX562CWI ,Complete 230kbps, 2.7V to 5.25V Serial Interface for Notebook ComputersFeaturesThe MAX562 is designed specifically for notebook and' 230kbps Data Rate, LapLink™ Compatibl ..
MAX562EAI ,Complete 230kbps, 2.7V to 5.25V Serial Interface for Notebook ComputersMAX56219-0144; Rev. 0; 9/93Complete 230kbps, 2.7V to 5.25VSerial Interface for Notebook Computers__ ..
MAZ8024 ,Small-signal deviceelectrical characteristicswithin part numbersReverse current I V Specified value µ AR R*3Temperatur ..
MAZ8027-H ,Silicon planar typeElectrical characteristics within part numbers T = 25°CaTemperaturecoefficient ofZener voltage Rev ..
MAZ8027-L ,Silicon planar typeElectrical Characteristics T = 25°CaParameter Symbol Conditions Min Typ Max UnitForward voltage V ..
MAZ8030-H ,Silicon planar typeelectrical characteristicsZ Zwithin part numbersReverse current I V ··············· Specified value ..
MAZ8030-L ,Silicon planar typeZener DiodesMAZ8000 SeriesSilicon planar typeUnit : mmFor stabilization of power supplyKA
MAZ8033-H ,Silicon planar typeElectrical characteristics within part numbers T = 25°CaTemperaturecoefficient ofZener voltage Rev ..

MAX562
Complete 230kbps, 2.7V to 5.25V Serial Interface for Notebook Computers
19-0144; Rev. 0; 9/93
_______________General Description
The MAX562 is designed specifically for notebook and
palmtop computers that need to transfer data quickly.
It runs at data rates up to 230kbps, and has a guaran-
teed 4V/μs slew rate. This device meets the new
EIA/TIA-562 standard that guarantees compatibility with
RS-232 interfaces.
The MAX562 has low-power shutdown and keep-awake
modes. In keep-awake mode, the transmitters are dis-
abled but all receivers are active, allowing unidirection-
al communication. In shutdown mode, the entire chip is
disabled and all outputs are in a high-impedance state.
The MAX562 is available in a standard 28-pin SO pack-
age, and in a smaller footprint shrink small-outline
package (SSOP).
________________________Applications
Palmtop, Notebook, and Subnotebook
Computers
Peripherals
Battery-Powered Equipment
____________________________Features230kbps Data Rate, LapLink™CompatibleOperates from a 2.7V to 5.25V SupplyDesigned for EIA/TIA-562 and EIA/TIA-232 ApplicationsGuaranteed 4.0V/μs Slew Rate3 Drivers, 5 ReceiversFlow Through PinoutLow-Power Shutdown and Keep-Awake ModesLow-Cost, Surface-Mount External Capacitors
______________Ordering Information
* Contact factory for dice specifications.
Complete 230kbps, 2.7V to 5.25Vrial Interface for Notebook Computers
________________________________________________________________Maxim Integrated Products1
VCC
GND
C2+
C2-
R1IN
SHDN
R2IN
R3IN
R4IN
R5IN
T1OUT
T2OUT
T3OUT
T3IN
T2IN
T1IN
R5OUT
R4OUT
R3OUT
R2OUT
R1OUT
C1A-
C1B-
C1B+
C1A+
MAX562
SO/SSOP
TOP VIEW
__________________Pin Configuration
GND
SHDN
R5IN
R4IN
R3IN
R2IN
R1IN
T3OUT
T2OUT
T1OUT
R5OUT
R4OUT
R3OUT
R2OUT
R1OUT
T3IN
T2IN
T1IN
VOLTAGE
DOUBLER/TRIPLER
VOLTAGE
INVERTER-532
C2-
C2+
C1AC1B
C1A+C1A-C1B+C1B-
VCCV+0.68µF0.33µF
0.33µF
+2.7V TO
+5.25V
INPUT
0.33µF
0.33µF0.33µF
CMOS
INPUTS
CMOS
OUTPUTS
EIA/TIA
-562
INPUTS
EIA/TIA
-562
OUTPUTS
MAX562
__________Typical Operating Circuit
Call toll free 1-800-998-8800 for free samples or literature.
PARTTEMP. RANGEPIN-PACKAGE
MAX562CWI0°C to +70°C28 SO
MAX562CAI0°C to +70°C28 SSOP
MAX562C/D0°C to +70°CDice*
MAX562EWI-40°C to +85°C28 SO
MAX562EAI-40°C to +85°C28 SSOP
™ LapLink is a registered trademark of Traveling Software, Inc.
Complete 230kbps, 2.7V to 5.25Vrial Interface for Notebook Computers_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
VCC.........................................................................-0.3V to +6V................................................................(VCC- 0.3V) to +6V............................................................................+0.3V to -6V
C1A+, C1B+..................................................-6V to (V+ + 0.3V)
C1A-, C1B-, C2+........................................-0.3V to (V+ + 0.3V)
C2-..................................................................(V- - 0.3V) to +6V
Input Voltages
TIN, EN, SHDN........................................-0.3V to (VCC+ 0.3V)
RIN....................................................................................±25V
Output Voltages
TOUT...............................................................................±15V
ROUT......................................................-0.3V to (VCC+ 0.3V)
Short-Circuit Duration
TOUT to GND........................................................Continuous
ROUTto GND, VCC................................................Continuous
Continuous Power Dissipation (TA= +70°C)(derate 12.50mW/°C above +70°C)..................1000mW
SSOP(derate 9.52mW/°C above +70°C).................762mW
Operating Temperature Ranges:
MAX562C_ _.....................................................0°C to +70°C
MAX562E_ _..................................................-40°C to +85°C
Storage Temperature Range...........................-65°C to +160°C
Lead Temperature (soldering, 10sec)...........................+300°C
ELECTRICAL CHARACTERISTICS
(VCC= 2.7V to 5.25V, C1A = C1B = C2 = C4 = 0.33μF, C3 = 0.68μF, TA= TMINto TMAX, unless otherwise noted.)
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.
PARAMETERMINTYPMAXUNITS
Input Voltage Operating Range±25V
Input Threshold Low0.8V
Input Threshold High2.4V
Input HysteresisNo hysteresis when SHDN= 0V0.3V
Input Resistance-15V < VIN< 15V357kΩ
Output Voltage SwingAll transmitter outputs loaded with 3kΩto GND±3.7±4.5±6.0V
VCC= 2.7V to 3.6V0.6Input Logic Threshold LowTIN, EN, SHDNVCC= 5.0V +5%, -10%0.8V
VCC= 2.7V to 3.6V1.8Input Logic Threshold HighTIN, EN, SHDNVCC= 5.0V +5%, -10%3.0V
Output Voltage LowIOUT= 1.6mA0.4V
Output Voltage HighIOUT= -1.0mAV
Output Leakage CurrentEN = GND, 0V £ROUT£VCC0.05±10μA
Operating Supply Voltage2.75.25V
No load2033VCCPower-Supply CurrentVCC= 3.3VAll outputs loaded 3kΩ24mA
EN = VCC, SHDN= GND, TA= +25°C45130μA
Shutdown Supply CurrentSHDN= EN = GND, TA= +25°C150μA
Output Leakage Current±10μA
Output ResistanceVCC= V+ = V- = 0V, VOUT= ±2V300Ω
Output Short-Circuit CurrentVOUT= 0V±60mA
Shutdown Supply Current with
Receivers Active
VCC-0.5
CONDITIONS
EIA/TIA-562 TRANSMITTERS
EIA/TIA-562 RECEIVERS
POWER SUPPLY
Complete 230kbps, 2.7V to 5.25Vrial Interface for Notebook Computers
_______________________________________________________________________________________3
AC CHARACTERISTICS
PARAMETERCONDITIONSMINTYPMAXUNITS
Receiver Propagation Delay,
Normal Operation250500= 150pF,
SHDN= GND
Figure 2
30004000Receiver Propagation Delay,
Keep-Awake Mode20003000
Receiver-Output Enable TimeFigure 4100250ns
Receiver-Output Disable TimeFigure 4250500ns
Data Rate1000pF ||3kΩload each transmitter output,
150pF load each receiver output230.4280.0kbits/sec
Transmitter Slew Rate= 50pF to 2500pF, = 3kΩto 7kΩ. Measured from +3V to -3V, or
-3V to +3V630V/μs= 2500pF0.223.1
Transmitter Rise/Fall Time= 3kΩmeasured
from +3.3V to -3.3V
or -3.3V to +3.3VCL= 1000pF0.222.1
tPHLT9001700Transmitter Propagation Delay2500pF ||3kΩload,
Figure 1tPLHT10001700ns
Transmitter-Output Enable Time100μs
Transmitter-Output Disable TimeFigure 3600ns= 150pF,
SHDN= VCCFigure 2
tPHLR100250
tET
tDT
tPLHR
tPHLS
tPLHS
tER
tDR
Complete 230kbps, 2.7V to 5.25Vrial Interface for Notebook Computers_______________________________________________________________________________________
__________________________________________Typical Operating Characteristics
8.0
7.5
7.0
6.5
6.0
5.5
5.0
4.5
4.002000300040005000
CL(pF)
(V
/µs
SLEW-
SLEW+
ALL OUTPUTS LOADED
3kW II CL
TRANSMITTER SLEW RATE
vs. LOAD CAPACITANCE
-1
-2
-3
-4
-5
-6-404080
TEMPERATURE (°C)
ITT
T V
E (V
-, V
-3.7V EIA/TIA-562
T_OUT+
TRANSMITTER OUTPUT VOLTAGE
vs. TEMPERATURE
T_OUT-
+3.7V EIA/TIA-562
ALL TRANSMITTERS LOADED 3kW
-1
-2
-3
-4
-5
-602000300040005000
CL (pF)
ITT
T V
E (V
-, V
T_OUT-
T_OUT+
ALL TRANSMITTERS
LOADED 3kW II CL
TRANSMITTER OUTPUT VOLTAGE
vs. LOAD CAPACITANCE, TO 231kbps
38
36
34
32
30
28
26
24
22
202.53.54.0
VCC (V)
(m
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
ALL TRANSMITTERS LOADED 3kW
38
36
34
32
30
28
26
24
22-404080
TEMPERATURE (°C)
(m
SUPPLY CURRENT
vs. TEMPERATURE
VCC = +2.7V
ALL TRANSMITTERS LOADED 3kW
VCC = +3.3V
55
50
45
40
35
30
25
20100150
DATA RATE (kbps)
(m
SUPPLY CURRENT
vs. TRANSMITTER DATA RATE
1 OUTPUT LOADED
3kW II 2500pF
2 OUTPUTS LOADED
3kW II 2500pF
3 OUTPUTS LOADED
3kW II 2500pF
60
55
50
45
40
35-404080
TEMPERATURE (°C)
(µA
SUPPLY CURRENT
vs. TEMPERATURE
VCC = +2.7V
VCC = +3.3V
SHDN = 0, EN = 1
ALL TRANSMITTERS LOADED 3kW
__________________________________________Typical Operating Characteristics
(VCC= 3.3V, C1A = C1B = C2 = C4 = 0.33μF, C3 = 0.68μF, TA=+25°C, unless otherwise noted.)
Complete 230kbps, 2.7V to 5.25Vrial Interface for Notebook Computers
_______________________________________________________________________________________5
INPUT
OUTPUT
tPLHT
VOH
VOL
tPHLT
+3V
Figure 1. Transmitter Propagation Delay Timing
INPUT
OUTPUT
tPHLR
tPHLS
VCC
tPLHR
tPLHS
50%
50%
+3V
50%
GND
50%
Figure 2. Receiver Propagation Delay Timing
______________________________________________________________Pin Description
PINNAMEFUNCTIONV+Positive charge-pump output, typically 5.8V
2, 5C1A+, C1A-Terminals for positive charge-pump capacitor
3, 4C1B+, C1B-Terminals for positive charge-pump capacitor
6, 7, 8, 9, 10R_OUTTTL/CMOS Receiver Outputs.
11, 12, 13T_INTTL/CMOS Driver InputsENReceiver Enable, see Shutdown and Enable Controlsection.SHDNShutdown Control, see Shutdown and Enable Controlsection.
16, 17, 18T_OUTEIA/TIA-562 Driver Outputs
19, 20, 21, 22, 23R_INEIA/TIA-562 Receiver Inputs
24, 25C2+, C2-Terminals for negative charge-pump capacitorV-Negative charge-pump output, typically -5.2VGNDGroundVCC+2.7V to +5.25V Supply Voltage
Complete 230kbps, 2.7V to 5.25Vrial Interface for Notebook Computers_______________________________________________________________________________________
_______________Detailed Description
The MAX562 has three sections: the charge-pump voltage
converter, the drivers (transmitters), and the receivers.
Charge-Pump Voltage Converter
The charge-pump voltage converter is used to produce a
positive and a negative supply to drive the transmitters. The
positive voltage (V+) is generated by a regulated charge
pump working as either a doubler or a tripler (depending on
the VCClevel) and using capacitors C1A, C1B and C3 (see
Typical Operating Circuit). The negative voltage (V-) derives
from V+ using a simple charge-pump inverter that employs
capacitors C2 and C4.
These charge-pump converters are regulated to give output
voltages of +5.8V and -5.2V. Having regulated supplies
generated on-chip makes the MAX562's performance insen-
sitive to variations in VCCfrom 2.7V to 5.25V, transmitter load-
ing changes, and operating temperature changes.
When SHDNis low, the charge pumps are disabled, V+ is
internally connected to VCC, and V- is internally connected to
GND.
EIA/TIA-562 Drivers
The driver output voltage is guaranteed to meet the ±3.7V
EIA/TIA-562 specification over the full range of operating
temperatures and voltages, when each transmitter is
loaded with up to 3kΩand operated up to 230kbps (see
Typical Operating Characteristics). The typical driver out-
put voltage swing exceeds ±4V with a 3kΩload on all
transmitter outputs. The open-circuit output voltage swing
is typically from (V+ - 0.7V) to (V- + 0.7V). Output swing is
not significantly dependent on VCCsince the charge
pumps are regulated.
Input thresholds are CMOS and TTL compatible. Connect
unused inputs to VCCor to GND.
When SHDNis low, the driver outputs are off and their leak-
age currents are less than 10μA, even if the transmitter
outputs are back-driven between -7V and +15V. Taking
SHDNlow does not disable the receivers.
When SHDNand EN are both low, the entire chip is
disabled and all outputs are high impedance. Power
consumption is lowest in this condition. Exiting shutdown
takes about 100μs, but depends on VCC. Figure 5 shows
SHDN
VOH
VOL
+3V
OUTPUT DISABLE TIME (tDT)
+3V
-3V
A. TIMING DIAGRAM
1 OR 0TX50pF
B. TEST CIRCUIT
TRANSMITTER
OUTPUTS
Figure 3. Transmitter-Output Disable Timing
VOH -1V,
VOL +1.6VR_IN
R_OUT1k
150pF
A. TEST CIRCUIT
B. ENABLE TIMING
EN INPUT
RECEIVER
OUTPUTS
+3V
OUTPUT ENABLE TIME (tER)
VOH
VOL
RECEIVER
OUTPUTS+3V
OUTPUT DISABLE TIME (tDR)
VOH -0.5V
VOL +0.5V
EN INPUT
VOH
VOL
C. DISABLE TIMING
Figure 4. Receiver-Output Enable and Disable Timing

Partno	Mfg	Dc	Qty	Available	Descript
MAX562		N/a	60	avai	Complete 230kbps, 2.7V to 5.25V Serial Interface for Notebook Computers