USB1T1105AMHX Просмотр технического описания (PDF) - Fairchild Semiconductor

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USB1T1105AMHX

Universal Serial Bus Peripheral Transceiver with Voltage Regulator

Fairchild Semiconductor 

Connection Diagram

Terminal Descriptions

(Bottom View)

Terminal Terminal

Number Name

1

OE

2

RCV

3

Vp

4

Vm

5

SUSPND

6

MODE

7

VCCIO

8

10, 9

11

12

13

NC

D, D

Vpo / Vo

Vmo / FSEO

VREG (3.3V)

14

VCC (5.0V)

I/O

I

O

O

O

I

I

NC

AI/O

I

I

Terminal Description

Output Enable: Active LOW enables the transceiver to transmit data on the bus. When

not active the transceiver is in the receive mode (CMOS level is relative to VCCIO)

Receive Data Output: Non-inverted CMOS level output for USB differential Input (CMOS

output level is relative to VCCIO). Driven LOW when SUSPN is HIGH;

RCV output is stable and preserved during SE0 condition.

Single-ended D receiver output VP (CMOS level relative to VCCIO):

Used for external detection of SEO, error conditions, speed of connected device;

Driven HIGH when no supply connected to VCC and VREG.

Single-ended D receiver output Vm (CMOS level relative to VCCIO):

Used for external detection of SEO, error conditions, speed of connected device;

Driven HIGH when no supply connected to VCC and VREG.

Suspend:

Enables a low power state (CMOS level is relative to VCCIO). While the SUSPND pin is

active (HIGH) it will drive the RCV pin to logic “0” state.

MODE input (CMOS level is relative to VCCIO). A HIGH selects the differential input

MODE (Vpo, Vmo) whereas a LOW enables the single-ended MODE (Vo, VFSEO) see

Table 2 and Table 3

Supply Voltage for digital I/O pins (1.65V to 3.6V):

When not connected the D and D pins are in 3-STATE. This supply bus is totally

independent of VCC (5V) and VREG (3.3V).

Data , Data : Differential data bus conforming to the USB standard.

Driver Data Input (CMOS level is relative to VCCIO); Schmitt trigger input;

see Table 2 and Table 3

Driver Data Input (CMOS level is relative to VCCIO); Schmitt trigger input;

see Table 2 and Table 3

Internal Regulator Option:

Regulated supply output voltage (3.0V to 3.6V) during 5V operation;

decoupling capacitor of at least 0.1 PF is required.

Internal Regulator Option:

Used as supply voltage input (4.0V to 5.5V); can be connected directly to USB line

Vbus.

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