ST72681_R20 Просмотр технического описания (PDF) - STMicroelectronics

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ST72681_R20

USB 2.0 high-speed Flash drive controller

STMicroelectronics 

ST72681

2

Pin description

Pin description

Figure 2 shows the TQFP48 package pinout, while Table 2, Table 3, Table 4, and Table 5

give the pin description.

The legend and abbreviations used in these tables are the following:

● Type

– I = input

– O = output

– S = supply

● Input level: A = Dedicated analog input

● In/Output level

– CT = CMOS 0.3VDD/0.7VDD with input trigger

– TT= TTL 0.8V / 2V with Schmitt trigger

● Output level

– D8 = 8mA drive

– D4 = 4mA drive

– D2 = 2mA drive

Figure 2. 48-pin TQFP package pinout

VDDA

OSCIN

OSCOUT

VSSA

RREF

VSSC

VDDC

VDD3

USBDP

USBDM

VSSBL

VDDBL

48 47 46 45 44 43 42 41 40 39 38 37

1

36

2

35

3

34

4

33

5

32

6

7

ST72681

31

30

8

29

9

28

10

27

11

26

12

25

13 14 15 16 17 18 19 20 21 22 23 24

NAND WP

READ ONLY

EEPROM SCL

VSS_2

VDD33_2

NC(1)

NC(1)

RESET

LED2

LED1

NAND ALE/EEPROM SDA

VSS_3

1. Must remain NOT connected in the application.

5/32

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