ST7LITE20F2 STMicroelectronics, ST7LITE20F2 Datasheet - Page 5

• Manufacturer Part Number: ST7LITE20F2
• Description: 8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, DATA EEPROM, ADC, TIMERS, SPI
• Manufacturer: STMicroelectronics

Specifications of ST7LITE20F2

• 8 Kbytes Single Voltage Flash Program Memory With Read-out Protection, In-circuit Programming And In-application Programming (icp And Iap). 10k Write/erase Cycles Guaranteed, Data Retention: 20 years at 55˚C.
• Clock Sources: Internal 1% RC oscillator, crystal/ceramic resonator or external clock
• Five Power Saving Modes: Halt, Active-Halt, Wait and Slow, Auto Wake Up From Halt

1 INTRODUCTION
The ST7LITE2 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
byte-by-byte In-Circuit Programming (ICP) and In-
Application Programming (IAP) capability.
Under software control, the ST7LITE2 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
Figure 1. General Block Diagram
RESET
CLKIN
OSC1
OSC2
V
V
DD
SS
ST7LITE2 features FLASH memory with
16MHz
1MHz
OSC
Ext.
to
1% RC
1MHz
Int.
8-BIT CORE
PROGRAM
(384 Bytes)
CONTROL
/ 2
(8K Bytes)
MEMORY
SUPPLY
POWER
RAM
LVD
ALU
8MHz -> 32MHz
or PLL X4
PLL x 8
PLL
Internal
CLOCK
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
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.
section 13 on page
DATA EEPROM
Debug Module
LITE TIMER 2
WATCHDOG
Auto-Reload
(256 Bytes)
+ OpAmp
PORT A
PORT B
TIMER 2
12-Bit
ADC
8-Bit
SPI
91.
(8 bits)
(7 bits)
PA7:0
PB6:0
ST7LITE2
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