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ST7LITE1 Datasheet(PDF) 5 Page - STMicroelectronics

Part No. ST7LITE1
Description  8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, DATA EEPROM, ADC, 4 TIMERS, SPI
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Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
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ST7LITE1
5/131
1 INTRODUCTION
The ST7LITE1 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
ST7LITE1 features FLASH memory with
byte-by-byte In-Circuit Programming (ICP) and In-
Application Programming (IAP) capability.
Under software control, the ST7LITE1 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 91.The devices feature an
on-chip Debug Module (DM) to support in-circuit
debugging (ICD). For a description of the DM reg-
isters, refer to the ST7 ICC Protocol Reference
Manual.
Figure 1. General Block Diagram
8-BIT CORE
ALU
OSC1
OSC2
RESET
PORT A
Internal
CLOCK
CONTROL
RAM
(256 Bytes)
PA7:0
(8 bits)
VSS
VDD
POWER
SUPPLY
PROGRAM
(4K Bytes)
LVD
MEMORY
PLL x 8
Ext.
1MHz
PLL
Int.
1MHz
8-Bit
LITE TIMER 2
PORT B
SPI
PB6:0
(7 bits)
DATA EEPROM
(128 Bytes)
1% RC
OSC
to
16MHz
ADC
+ OpAmp
12-Bit
Auto-Reload
TIMER 2
CLKIN
/ 2
or PLL X4
8MHz -> 32MHz
WATCHDOG
Debug Module
1




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