參數(shù)資料
型號: ST7260E2M1/XXX
廠商: STMICROELECTRONICS
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDSO24
封裝: 0.300 INCH, LEAD FREE, PLASTIC, SOP-24
文件頁數(shù): 53/118頁
文件大小: 2304K
代理商: ST7260E2M1/XXX
ST7260
4/117
1 INTRODUCTION
The ST7260 Microcontrollers form a sub-family of
the ST7 MCUs dedicated to USB applications. The
devices are based on an industry-standard 8-bit
core and feature an enhanced instruction set.
They operate at a 24 MHz or 12 MHz oscillator fre-
quency. Under software control, the ST7260
MCUs may be placed in either Wait or Halt modes,
thus reducing power consumption. The enhanced
instruction set and addressing modes afford real
programming potential. In addition to standard 8-
bit data management, the ST7260 MCUs feature
true bit manipulation, 8x8 unsigned multiplication
and indirect addressing modes. The devices in-
clude an ST7 Core, up to 8Kbytes of program
memory, up to 384 bytes of RAM, 19 I/O lines and
the following on-chip peripherals:
– USB low speed interface with 3 endpoints with
programmable in/out configuration using the
DMA architecture with embedded 3.3V voltage
regulator and transceivers (no external compo-
nents are needed).
– Industry standard asynchronous SCI serial inter-
face
– Watchdog
– 16-bit Timer featuring an External clock input, 2
Input Captures, 2 Output Compares with Pulse
Generator capabilities
– Low voltage reset (LVD) ensuring proper power-
on or power-off of the device
The ST72F60 devices are Flash versions. They
support programming in IAP mode (In-application
programming) via the on-chip USB interface.
Figure 1. General Block Diagram
8-BIT CORE
ALU
AD
DRESS
AND
DATA
BUS
OSCIN
OSCOUT
RESET
PORT B
16-BIT TIMER
PORT A
PORT C
PB[7:0]
(8 bits)
PC[2:0]
(3 bits)
OSCILLATOR
INTERNAL
CLOCK
CONTROL
RAM
(384 Bytes)
PA[7:0]
(8 bits)
VSS
VDD
POWER
SUPPLY
SCI
PROGRAM
(8K Bytes)
MEMORY
(UART)
USB SIE
OSC/3
LVD
WATCHDOG
VSSA
VDDA
VPP/TEST
USB DMA
USBDP
USBDM
USBVCC
OSC/4 or OSC/2
for USB1)
1) 12 or 24 MHz OSCIN frequency required to generate 6 MHz USB clock.
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