ST7265X データシートの表示（PDF） - STMicroelectronics

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ST7265X

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

STMicroelectronics 

ST7265x

INTRODUCTION (Cont’d)

Figure 3. ST7265x Block Diagram

OSCIN

OSCOUT

12MHz

OSC

48MHz

PLL

CLOCK

DIVIDER

fCPU

DATA

TRANSFER

BUFFER

(1280 bytes)

USBDP

USBDM

USBVCC

PD[7:0]

(8 bits)

RESET

VPP

USB

PORT D

16-BIT TIMER*

WATCHDOG

CONTROL

8-BIT CORE

ALU

LVD*

RAM

(0.5/5 KBytes)

PROGRAM

MEMORY

(16/32 Kbytes)

PORT A

PORT B

SPI *

PORT C

DATA

TRANSFER

COPROCESSOR

DTC S/W RAM

(256 Bytes)

PORT E

PWM*

PORT F

I2C*

8-BIT ADC*

FLASH SUPPLY

BLOCK

POWER SUPPLY

REGULATOR

DUAL SUPPLY

MANAGER *

PA[7:0]

(8 bits)

PB[7:0]

(8 bits)

PC[7:0]

(8 bits)

PE[7:0]

(8 bits)

PF[6:0]

(7 bits)

VDDF

VSSF

VDDA

VSSA

VDD1,VDD2

VSS1, VSS2

USBVDD

USBVSS

* not on all products (refer to Table 1: Device Summary)

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