ISP1105 데이터 시트보기 (PDF) - Ericsson

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ISP1105

Advanced USB transceivers

Ericsson  

ISP1105/1106

Advanced USB transceivers

Table 3. Pin description …continued

Symbol[1] Pin

Type Description

ISP1105

ISP1106

BSTM WTS, DHTM WTS

WTM

VPO/VO

VPO

VO

11 11

-

-I

-

-

13 11

-

-

-

-

driver data input (CMOS level with respect to VCC(I/O), Schmitt trigger);

see Table 5 and Table 6

input pad; push pull; CMOS

VMO/FSE0

VMO

FSE0

12 12

-

-I

-

-

14 12

-

-

-

-

driver data input (CMOS level with respect to VCC(I/O), Schmitt trigger);

see Table 5 and Table 6

input pad; push pull; CMOS

Vreg(3.3)

13 13 15 13 -

internal regulator option: regulated supply voltage output

(3.0 V to 3.6 V) during 5 V operation; a decoupling capacitor of at least

0.1 μF is required

regulator bypass option: used as a supply voltage input for

3.3 V ± 10 % operation

VCC(5.0)

Vpu(3.3)

14 14 16 14 -

15 15

1

15 -

internal regulator option: supply voltage input (4.0 V to 5.5 V); can

be connected directly to USB supply VBUS

regulator bypass option: connect to Vreg(3.3)

pull-up supply voltage (3.3 V ± 10 %); connect an external 1.5 kΩ

resistor on D+ (full-speed) or D− (low-speed); pin function is controlled

by input SOFTCON

SOFTCON = LOW — Vpu(3.3) floating (high impedance); ensures zero

pull-up current

SOFTCON = HIGH — Vpu(3.3) = 3.3 V; internally connected to Vreg(3.3)

SOFTCON

16 16

2

16 I

software controlled USB connection input; a HIGH level applies 3.3 V

to pin Vpu(3.3), which is connected to an external 1.5 kΩ pull-up

resistor; this allows USB connect/disconnect signalling to be controlled

by software

input pad; push pull; CMOS

[1] Symbol names with an overscore (e.g. NAME) indicate active LOW signals.

[2] ISP1105: ground terminal is connected to the exposed die pad (heat sink).

ISP1105_1106_10

Product data sheet

Rev. 10 — 28 September 2009

© ST-ERICSSON 2009. All rights reserved.

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