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ST7LITE3 Datasheet(PDF) 4 Page - STMicroelectronics

Part No. ST7LITE3
Description  8-BIT MCU WITH SINGLE VOLTAGE FLASH, DATA EEPROM, ADC, TIMERS, SPI, LINSCI
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Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
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 4 page
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ST7LITE3
4/167
1 INTRODUCTION
The ST7LITE3 is a member of the ST7 microcon-
troller family. All ST7 devices are based on a com-
mon industry-standard 8-bit core, featuring an en-
hanced instruction set.
The
ST7LITE3 features FLASH memory with
byte-by-byte In-Circuit Programming (ICP) and In-
Application Programming (IAP) capability.
Under software control, the ST7LITE3 device 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, 8x8 un-
signed multiplication and indirect addressing
modes.
For easy reference, all parametric data are located
in section 13 on page 129.
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.
Figure 1. General Block Diagram
8-BIT CORE
ALU
RESET
PORT A
CONTROL
RAM
(384 Bytes)
PA7:0
(8 bits)
VSS
VDD
POWER
SUPPLY
PROGRAM
(8K Bytes)
LVD
MEMORY
8-Bit
LITE TIMER 2
PORT B
SPI
PB6:0
(7 bits)
WDG
ADC
12-Bit
Auto-Reload
TIMER 2
LINSCI
Debug Module
OSC1
OSC2
Internal
CLOCK
PLL x 8
Ext.
1MHz
Int.
1MHz
1% RC
OSC
to
16MHz
CLKIN
/ 2
or PLL X4
DATA EEPROM
( 256 Bytes)
1




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