ST7L05 datasheet(5/104 Pages) STMICROELECTRONICS

5 / 104 page

ST7L05, ST7L09

5/104

1 DESCRIPTION

The ST7L0x is a member of the ST7 microcontrol-

ler family suitable for automotive applications. All

ST7 devices are based on a common industry-

standard 8-bit core, featuring an enhanced instruc-

tion set.

The ST7L0x features Flash memory with byte-by-

byte In-Circuit Programming (ICP) and In-Applica-

tion Programming (IAP) capability.

Under software control, the ST7L0x devices can

be placed in WAIT, SLOW, or HALT mode, reduc-

ing power consumption when the application is in

idle or standby state.

The enhanced instruction set and addressing

modes of the ST7 offer both power and flexibility to

software developers, enabling the design of highly

efficient and compact application code. In addition

to standard 8-bit data management, all ST7 micro-

controllers feature true bit manipulation, 8 x 8 un-

signed multiplication and indirect addressing

modes.

For easy reference, all parametric data is found in

Section 13 on page 73.

Figure 1. General Block Diagram

8-bit CORE

ALU

RESET

PORT B

PORT A

SPI

8-bit ADC

w/ WATCHDOG

PB4:0

(5 bits)

1 MHz RC OSC

Internal

CLOCK

CONTROL

RAM

(128 bytes)

PA7:0

(8 bits)

VSS

VDD

POWER

SUPPLY

FLASH

PLL x8

LITE TIMER

MEMORY

DATA EEPROM

(128 bytes)

12-bit AUTO-

RELOAD TIMER

(1.5 Kbytes)

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