ST72681_R20 Просмотр технического описания (PDF) - STMicroelectronics

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ST72681_R20

USB 2.0 high-speed Flash drive controller

STMicroelectronics 

Pin description

ST72681

Table 2. Power supply

Pin Pin name

Description

48

VSS_1

S Ground

47

VDD33_1

S I/Os and regulator supply voltage

33

VSS_2

S Ground

32

VDD33_2

S I/Os and regulator supply voltage

25

VSS_3

S Ground

24

VDD33_3

S I/Os and regulator supply voltage

14

VSS_4

S Ground

15

VDD33_4

S I/Os and regulator supply voltage

13 VDDOUSB S USB2 PHY, OSC and PLL power supply output (1.8 V)

Table 3. USB 2.0 interface

Pin Pin name

Description

12

VDDBL

S Supply voltage for buffers and deserialization flip flops (1.8 V)

11

VSSBL

S Ground for buffers and deserialization flip flops (1.8 V)

10

USBDM

I/O USB2 DATA -

9

USBDP

I/O USB2 DATA +

8

VDD3

S Supply voltage for the FS compliance (3.3 V)

7

VDDC

S Supply voltage for DLL & XOR tree (1.8 V)

6

VSSC

S Ground for DLL & XOR tree (1.8 V)

5

RREF

I/O

Ref. resistor for integrated impedance process adaptation

(11.3 kOhms 1% pull down)

Table 4. USB 2.0 and core clock system

Pin Pin name

Description

4

VSSA

S Ground for osc & PLL (1.8 V)

3

OSCOUT

O 12 MHz oscillator output

2

OSCIN

I 12 MHz oscillator input

1

VDDA

S Supply voltage for osc & PLL (1.8 V)

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