ST7265X View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

ST7265X

Low speed USB 8-bit MCU family with up to 32 KB Flash/ROM

STMicroelectronics 

ST7265x

Figure 9. Compact Flash Card Writer Application Example

4.7µF

100nF

VDD

USBVDD

=4.0-5.5V

USBVDD

USB Port

5V

100nF

DP

1.5KΩ USB

VCC

DP

DM

GND

DM

USB

GND

USB

POWER

MANAGEMENT

(3)

I/O

LOGIC

REGULATOR

LED1

DTC

LED2

1

level

translator

5

PA PB

68

PE

[2]

4.7KΩ

VDDF

FLASH

VPP

12V for

Flash prog.

(connect to

GND if

not used)

4.7µF

CF

100nF

8-BIT MEMORY

MODE

Table 3. Compact Flash Card Writer Pin Assignment

Compact Flash

Card Pin

D0-7

D8-15

VS1, VS2, WAIT,

CS1, INPACK,

BVD1, BVD2

IORD,

IOWR, REG,

CE2, VCC

CSEL,

RESET,

GND,

A3-10

A0-2

CE1

RE WE

CD1

CD2,

RDY/BSY,

WP

ST72F65 pin PB0-7 NC

NC

ST7 / DTC (1) DTC -

-

VDDF

PE2

PA6

VSSF PA0-2 +pull-up PA3 PA5 +pull-up NC

4.7kΩ

100kΩ

Power Power DTC ST7 DTC DTC ST7

-

(1) This line shows if the ST72F65 pin is controlled by the

ST7 core or by the DTC.

(2) These lines are not controlled by the DTC but by the

user software running on the ST7 core. The choice of

ST72F65 pin is at the customer’s discretion. The pins

shown here are given only as an example.

(3) As this is a single power supply application, the US-

BEN function in not needed. Thus PF4/USBEN pin can be

used as a normal I/O by configuring it as such by the op-

tion byte.

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