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ST7LITEUS5 Datasheet(PDF) 11 Page - STMicroelectronics

Part # ST7LITEUS5
Description  Interrupt management
PDF  136 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST7LITEUS5 Datasheet(HTML) 11 Page - STMicroelectronics

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ST7LITEUS2, ST7LITEUS5
Introduction
11/136
1
Introduction
The ST7LITEUS2 and ST7LITEUS5 are members of the ST7 microcontroller family. All ST7
devices are based on a common industry-standard 8-bit core, featuring an enhanced
instruction set.
The ST7LITEUS2 and ST7LITEUS5 feature FLASH memory with byte-by-byte In-Circuit
Programming (ICP) and In-Application Programming (IAP) capability.
Under software control, the ST7LITEUS2 and ST7LITEUS5 can be placed in Wait, Slow, or
Halt mode, reducing 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 microcontrollers
feature true bit manipulation, 8x8 unsigned multiplication and indirect addressing modes.
For easy reference, all parametric data are located in Section 12 on page 92.
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 I2C protocol reference manual.
Figure 1.
General block diagram
8-BIT CORE
ALU
PA3 / RESET
PORT A
10-BIT ADC
with WATCHDOG
Internal
Clock
CONTROL
RAM
(128 Bytes)
PA5:0
(6 bits)
VSS
VDD
POWER
SUPPLY
8-MHz RC OSC
LITE TIMER
MEMORY
12-BIT AUTO-
RELOAD TIMER
FLASH
1 KByte
LVD
AWU RC OSC
External
Clock
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