Lucent Technologies USS-720 manual Electrical Characteristics, Capacitance Values Parameter Unit

Page 52

USS-720Instant USB

Preliminary Data Sheet, Rev. 5

USB-to-IEEE1284 Bridge

September 1999

 

 

Electrical Characteristics

Table 31. dc Characteristics (TA = 0 °C to 70 °C, VDD = 3.3 V ± 0.3 V, VSS = 0 V.)

Parameter

Symbol

Test Conditions

 

Min

 

Typ

Max

Unit

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Input Voltage:

 

 

 

 

 

 

 

 

 

 

 

 

 

Low

VIL

 

 

 

 

0.8

 

V

High

VIH

 

 

 

2.0

 

V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Output Voltage:

 

 

 

 

 

 

 

 

 

 

 

 

 

Low

VOL

 

 

 

 

0.4

 

V

High

VOH

 

 

 

2.4

 

V

 

 

 

 

 

 

 

 

 

 

 

 

 

Power Dissipation

PD

25 °C, VDD = 3.3 V

 

1.65

231

 

323.4

 

mW

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Power Supply Voltage

VDD, VDDA

 

 

 

3

3.3

 

3.6

 

V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VDD5

5 V environment

 

4.375

5

 

5.5

 

V

 

 

 

3 V environment

 

3

3.3

 

3.6

 

V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Power Supply Current

IDD

 

 

 

0.5

70

 

98

 

mA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Table 32. USB Transceiver Driver Characteristics

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Parameter

 

 

Symbol

 

Test Conditions

 

Min

 

Max

 

Unit

 

 

 

 

 

 

 

 

 

 

 

 

Rise and Fall Times:

 

 

 

 

OEN = 0, CL = 50 pF

 

 

 

 

 

 

(10%—90%)

 

 

tR

 

 

 

 

 

4

 

20

 

ns

(90%—10%)

 

 

tF

 

 

 

 

 

4

 

20

 

ns

 

 

 

 

 

 

 

 

 

 

 

 

Rise/Fall Time Matching

 

 

tRFM

 

OEN = 0, CL = 50 pF

 

90

 

110

 

%

 

 

 

 

 

 

 

 

 

 

 

 

Crossover Point

 

 

VCRS

 

OEN = 0, CL = 50 pF

 

1.3

 

2.0

 

V

 

 

 

 

 

 

 

 

 

 

 

 

 

Output Impedance*

 

 

ZDRV

 

OEN = 0

 

 

28

 

43

 

Ω

 

 

 

 

 

 

 

 

 

 

 

 

 

 

* The output impedance includes both the external resistor and the transceiver.

The USS-720 is a 3.3 V part, and it has separate pins (VDD5) for power to the IEEE 1284 drivers. Capacitance val- ues for the USS-720 pins are listed in Table 33.

Table 33. Capacitance Values

Parameter

Value

Unit

 

 

 

CLK_LO

1.0

pF

 

 

 

CLK_HI

1.0

pF

 

 

 

All Other Pins

3.0

pF

 

 

 

5-26

Lucent Technologies Inc.

Image 52
Contents Introduction Information Manual, Rev SeptemberTable of Contents Information Manual, Rev Evaluation Kit for USS-720 September USB-to-IEEE BridgeIOCTL1284 Terminate USS-720 USB Device Driver Preliminary User GuideIOCTLSET1284REGISTER USS-720 USB Port Monitor Application Note Evaluation Kit Contents Hardware Requirements \SAMPLESOSR2.1 Cable Installation Instructions Getting Started InstructionsSoftware Updates Windows 98 Cable Installation InstructionsPlug and Play USB Driver and Port MonitorPort Creation Eeprom Lucent Technologies Inc Lucent Technologies Microelectronics Group In-System Design, IncUSB Applications Support September Evaluation Kit Software USS-720 Driver Software Object Code License AgreementFebruary IntroductionUSS-720 Software Use Agreement February Licensed SoftwareFurnishing of Licensed Software OwnershipUSS-720 February Software Use AgreementWarranty and Indemnity Agreement PrevailsNothing Construed 04 ConfidentialityPublicity NonassignabilityAddresses IntegrationApplicable Law DisputesUSS720.INF USS720.SYSDocumentation USS-720 Software Use Agreement February Software Components Application Note, Rev FebruaryPlug and Play Operation PnP Customer-Defined DataPrinter Enumeration Power Management Installation ProcessOperating Systems Supported USB Hardware Types SupportedPrinter Types Supported Print Types SupportedPreliminary Data Sheet, Rev September FeaturesDescription Table of Contents Pin Information Preliminary Data Sheet, Rev USS-720USB-to-IEEE Parallel Port nAutoFd Signal Active-Low Parallel Port nSelectIn Signal Active-LowParallel Port nInit Signal Active-Low Parallel Port nAck Signal Active-LowOverview USB PortDevice Descriptor, Configurations, and Inter- faces Descriptor LocationsOnboard Device Descriptor USB-to- Ieee 1284 Bridge SeptemberDevice Descriptor Offset Field Size Value Description USB-to- Ieee Configuration DescriptorInterface Descriptors Bulk Out Endpoint Descriptor, I0A0E1Bulk Out Endpoint Descriptor, I0A1E1 September USB-to-IEEE1284 BridgeBulk In Endpoint Descriptor, I0A1E2 Bulk In Endpoint Descriptor, I0A2E2 Bulk Out Endpoint Descriptor, I0A2E1Interrupt Endpoint Descriptor, I0A2E3 Requests PipesStandard Requests Printer Class-Specific Requests Get Port Status Data Bit DescriptionGET1284REGISTER Vendor-Specific RequestsSET1284REGISTER Ieee 1284 Port Register-Based OperationRegisters GET1284REGISTER Data Byte Register DataInterrupt Pipe Read Data Byte Register DataDefault Bit Symbol Bit Description Status Register Address Bit SymbolParallel Port nFault Signal Reserved Control Register Address Bit Symbol Access Default Bit Symbol Bit DescriptionParallel Port nInit Signal USB-to-IEEE1284 BridgeUSS-720Instant USB ECP Command Register Address Bit Symbol Access Extended Control Register Address Bit Symbol Mode20 DescriptionUSS-720 Control Register Address Bit Symbol USS-720 Setup Register Address Bit Symbol Interrupts External Circuitry Requirements External Crystal ConnectionFilter Bypass Mode High Drive ModeSelf-Powered Mode Absolute Maximum Ratings Parameter Symbol Min UnitElectrical Characteristics Parameter Symbol Test Conditions Min Typ Max UnitCapacitance Values Parameter Unit Clklo ClkhiSetup and Hold Input Timing Parameter Timing CharacteristicsOutput Delay Timing Parameter Min Max Unit Outline Diagram Ordering InformationPin Mqfp Device Code Package ComcodeApplication Note February Description Parallel PortBridging USB to Typical Circuit Showing USSLucent Technologies Inc Signal Directions Preliminary User Guide, Rev FebruaryIOCTL1284 Setmode Initialization O File FunctionsPreliminary User Guide, Rev USS-720 February USB Device DriverCreateFile Error Codes ReadFileWriteFile DeviceIoControl CloseHandle O Control Codes Control Code DescriptionIOCTL1284 Ecpfwdtorev ParametersIOCTL1284ECPREVTOFWD IOCTL1284 Ecpsetchannel Register Mode Description IOCTL1284 SetmodeIOCTL1284 Terminate Ioctlabortpipe Value DescriptionBulkoutpipe BulkinpipeIoctlcancelpiperequest IOCTLGET1284REGISTER Ioctlgetaltsetting ALTINTERFACE0ALTINTERFACE1 ALTINTERFACE2Ioctlgetcapabilities Ioctlgetconfigurationdescriptor Ioctlgetdevicedescriptor Ioctlgetdeviceinstances Ioctlgetinterface Ioctlgetportstatus Bit MeaningIOCTLISSUEUSS720COMMAND Command DescriptionIoctlreadinterruptpipe Byte DescriptionIoctlresetpipe IOCTLSET1284REGISTER Ioctlsetaltsetting Ioctlsoftreset O Control Data Structures DeviceinstanceheaderDeviceinstance Data StructureREGISTER1284 REGISTER1284, *PREGISTER1284ADVREGISTER1284 ADVREGISTER1284, *PADVREGISTER1284Lucent Technologies Inc USS-720 USB Port Monitor USS-720 Application Note USB Port Monitor February Printer Cable with Instant USBSoftware Installation Instructions W98USS720EvalKit2402.zip to download the installation filesApplication Note June Click on Enter LibrarySeptember MN99-052CMPR-1 Replaces MN97-061CMPR-04