ST7LUS5 datasheet(11/124 Pages) STMICROELECTRONICS

11 / 124 page

ST7LUS5, ST7LU05, ST7LU09

Description

11/124

Description

The ST7LUxx devices are members of the ST7 microcontroller family designed for mid-

range automotive applications running from 3 to 5.5V.

All ST7 devices are based on a common industry-standard 8-bit core, featuring an

enhanced instruction set and are available with Flash or preprogramed memory. The ST7

family architecture offers both power and flexibility to software developers, enabling the

design of highly efficient and compact application code.

The on-chip peripherals include an A/D converter, a Lite timer and and an auto-reload timer.

For power economy, the microcontroller can switch dynamically into Halt, Auto Wake-up

from Halt, Active Halt, Wait, or Slow mode when the application is in idle or standby state.

The devices feature an on-chip Debug Module (DM) to support in-circuit debugging (ICD).

For a description of the DM registers, refer to the ST7 ICC Protocol Reference Manual.

Typical applications include:

●

all types of car body applications such as window lift, DC motor control, sunroof

●

Remote keyless entry (RKE)

●

Safety microcontroller (sub-MCU)

Figure 1.

General block diagram

Optional on certain devices

8-bit CORE

ALU

RESET

PORT A

10-bit ADC

with WATCHDOG

Internal

Clock

CONTROL

RAM

(128 bytes)

PA5:0

(6 bits)

VSS

VDD

POWER

SUPPLY

AWU RC OSC

LITE TIMER

MEMORY

12-bit AUTO-

RELOAD TIMER

FLASH

Up to 2 Kbytes

LVD

DATA EEPROM(1)

(128 bytes)

External

Clock

8 MHz RC OSC

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