Electronic Components Datasheet Search |
|
USB1T1102MPX Datasheet(PDF) 3 Page - Fairchild Semiconductor |
|
USB1T1102MPX Datasheet(HTML) 3 Page - Fairchild Semiconductor |
3 / 14 page 3 www.fairchildsemi.com Terminal Descriptions (Continued) Functional Description The USB1T1102 transceiver is designed to convert CMOS data into USB differential bus signal levels and to convert USB differential bus signal to CMOS data. To minimize EMI and noise the outputs are edge rate con- trolled with the rise and fall times controlled and defined for full speed data rates only (12Mbits/s). The rise, fall times are balanced between the differential pins to minimize skew. The USB1T1102 differs from earlier USB Transceiver in that the Vp/Vm and Vpo/Vmo pins are now I/O pins rather than discrete input and output pins. Table 1 describes the specific pin functionality selection. Table 2 and Table 3 describe the specific Truth Tables for Driver and Receiver operating functions. The USB1T1102 also has the capability of various power supply configurations to support mixed voltage supply applications (see Table 4) and Section 2.1 for detailed descriptions. Functional Tables TABLE 1. Function Select Note 1: Signal levels is function of connection and/or pull-up/pull-down resistors. Note 2: For SUSPND = HIGH mode the differential receiver is inactive and the output RCV is forced LOW. The out-of-suspend signaling (K) is detected via the single-ended receivers of the Vp/Vpo and Vm/Vmo pins. TABLE 2. Driver Function (OE = L) using Differential Input Interface Note 3: SE0 = Single Ended Zero TABLE 3. Receiver Function (OE = H) X = Don’t Care Terminal Number Terminal Name I/O Terminal Description MLP14 MLP16 13 15 VPU (3.3V) Pull-up Supply Voltage (3.3V ± 10%): Connect an external 1.5k Ω resistor on D+ (FS data rate); Pin function is controlled by Config input pin: Config = LOW − V PU (3.3V) is floating (High Impedance) for zero pull-up current. Config = HIGH − V PU (3.3V) = 3.3V; internally connected to VREG (3.3V). 14 16 Config I USB connect or disconnect software control input. Configures 3.3V to external 1.5k Ω resistor on D+ when HIGH. Exposed Diepad Exposed Diepad GND GND GND supply down bonded to exposed diepad to be connected to the PCB GND. SUSPND OE D +, D− RCV Vp/Vpo Vm/Vmo Function L L Driving & Receiving Active Vpo Input Vmo Input Normal Driving (Differential Receiver Active) L H Receiving (Note 1) Active Vp Output Vm Output Receiving H L Driving Inactive (Note 2) Vpo Input Vmo Input Driving during Suspend (Differential Receiver Inactive) HH 3-STATE (Note 1) Inactive (Note 2) Vp Output Vm Output Low Power State Vm/Vmo Vp/Vpo Data L L SE0 (Note 3) L H Differential Logic 1 H L Differential Logic 0 H H Illegal State D +, D− RCV Vp/Vpo Vm/Vmo Differential Logic 1 H H L Differential Logic 0 L L H SE0 X L L |
Similar Part No. - USB1T1102MPX |
|
Similar Description - USB1T1102MPX |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |