ST7263BE1 データシートの表示（PDF） - STMicroelectronics

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ST7263BE1

Low speed USB 8-bit MCU family with up to 32 KB Flash/ROM, DFU capability, 8-bit ADC, WDG, timer, SCI and I²C

STMicroelectronics 

ST7263Bxx

1

Introduction

Introduction

The ST7263B 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 frequency. Under

software control, the ST7263B 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 ST7263B

MCUs feature true bit manipulation, 8x8 unsigned multiplication and indirect addressing

modes. The devices include an ST7 core, up to 32 Kbytes of program memory, up to

1024 bytes of RAM, 27 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 3.3 V voltage regulator and transceivers (no

external components are needed).

● 8-bit analog-to-digital converter (ADC) with 12 multiplexed analog inputs

● Industry standard asynchronous SCI serial interface

● Watchdog

● 16-bit Timer featuring an External clock input, 2 input Captures, 2 output Compares

with Pulse Generator capabilities

● Fast I²C multimaster interface

● Low voltage reset (LVD) ensuring proper power-on or power-off of the device

The ST72F63B devices are Flash versions. They support programming in IAP mode (In-

application programming) via the on-chip USB interface.

Table 2. Device overview

Features

ST7263BHx ST7263BDx

ST7263BKx

ST7263BEx

Program

memory -

Kbytes (Flash /

32

16

8

32

32 16

8

ROM)

4 32 16 8 4

RAM (stack) -

bytes

1024 512 384

(128) (128) (128)

1024 (128)

1024 512

(128 (128)

384

(128)

384 1024 512 384 384

(128 (128) (128) (128) (128)

Standard

Peripherals

Watchdog timer, 16-bit timer, USB

Other

Peripherals

SCI, I²C, ADC

SCI,

AD

ADC

SCI, I²C

I/Os (high

current)

Operating

Supply

27 (10)

19 (10)

4.0 V to 5.5 V

14 (6)

CPU frequency

Operating

temp.

8 MHz (with 24 MHz oscillator) or 4 MHz (with 12 MHz oscillator)

0 °C to +70 °C

Packages

LQFP48 (7x7)

QFN40

(6x6)

SDIP32/ QFN40 SDIP32/

SO34 (6x6) SO34

SO24

Doc ID 7516 Rev 8

11/186

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