ST7LITE49M STMicroelectronics, ST7LITE49M Datasheet - Page 13

• Manufacturer Part Number: ST7LITE49M
• Description: 8-bit MCU
• Manufacturer: STMicroelectronics

Specifications of ST7LITE49M

• 4 Kbytes Single Voltage Extended Flash (xflash) Program Memory With Read-out Protection In-circuit Programming And In-application Programming (icp And Iap) Endurance: 10k write/erase cycles guaranteed Data retention
• 128 Bytes Data Eeprom With Read-out Protection. 300k Write/erase Cycles Guaranteed, Data Retention: 20 years at 55 °C.
• Clock Sources: Internal trimmable 8 MHz RC oscillator, auto-wakeup internal low power - low frequency oscillator, crystal/ceramic resonator or external clock
• Five Power Saving Modes: Halt, Active-halt, Auto-wakeup from Halt, Wait and Slow
• A/d Converter: 10 input channels

ST7LITE49M
1
Description
The ST7LITE49M is a member of the ST7 microcontroller family. All ST7 devices are based
on a common industry-standard 8-bit core, featuring an enhanced instruction set.
The ST7LITE49M features Flash memory with byte-by-byte in-circuit programming (ICP)
and in-application programming (IAP) capability.
Under software control, the ST7LITE49M device 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.
The ST7LITE49M features 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.
CLKIN
OSC1
OSC2
V
V
RESET
DD
SS
ST7LITE49M general block diagram
RC OSC
RC OSC
32 kHz
16MHz
8 MHz
1MHz
OSC
Ext.
Int.
Int.
to
Data EEPROM
(4K bytes)
(128 bytes)
(384 bytes)
LVD, AVD
program
8-bit core
memory
Flash
Control
Supply
Power
RAM
ALU
Doc ID 13562 Rev 3
/ 2
/ 2
Internal
clock
Debug module
dual Lite timer
Auto-reload
10-bit ADC
Watchdog
dual timer
Port C
Port A
Port B
12-bit
8-bit
I
2
C
(8 bits)
(8 bits)
(8 bits)
PC7:0
PA7:0
PB7:0
Description
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