ST7FLITE49K2T6TR STMicroelectronics, ST7FLITE49K2T6TR Datasheet - Page 50

• Manufacturer Part Number: ST7FLITE49K2T6TR
• Description: IC MCU 8BIT 8K FLASH 32LQFP
• Manufacturer: STMicroelectronics
• Series: ST7r

Specifications of ST7FLITE49K2T6TR

• Core Processor: ST7
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: I²C, SPI
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 24
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 384 x 8
• Voltage - Supply (vcc/vdd): 2.4 V ~ 5.5 V
• Data Converters: A/D 10x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-LQFP
• Processor Series: ST7FLITE4x
• Core: ST7
• Data Bus Width: 8 bit
• Data Ram Size: 384 B
• Interface Type: I2C, SPI
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 24
• Number Of Timers: 4
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Development Tools By Supplier: ST7FLITE-SK/RAIS, ST7FLI49M-D/RAIS, STX-RLINK
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 10 Channel
• For Use With: 497-8399 - BOARD EVAL ST7LITE49M/STLED316S497-5858 - EVAL BOARD PLAYBACK ST7FLITE
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Supply, reset and clock management
7.5
7.5.1
7.5.2
Note:
50/245
Register description
Main clock control/status register (MCCSR)
Reset value: 0000 0000 (00h)
Bits 7:2 = Reserved, must be kept cleared.
Bit 1 = MCO Main Clock Out enable bit
Bit 0 = SMS Slow mode selection bit
RC control register (RCCR)
Reset value: 1111 1111 (FFh)
Bits 7:0 = CR[9:2] RC Oscillator Frequency Adjustment bits
To tune the oscillator, write a series of different values in the register until the correct
frequency is reached. The fastest method is to use a dichotomy starting with 80h.
CR9
This bit is read/write by software and cleared by hardware after a reset. This bit allows
to enable the MCO output clock.
0: MCO clock disabled, I/O port free for general purpose I/O.
1: MCO clock enabled.
This bit is read/write by software and cleared by hardware after a reset. This bit selects
the input clock f
0: Normal mode (f
1: Slow mode (f
These bits must be written immediately after reset to adjust the RC oscillator
frequencyand to obtain an accuracy of 1%. The application can store the correct value
for each voltage range in Flash memory and write it to this register at start-up.
00h = maximum available frequency
FFh = lowest available frequency
These bits are used with the CR[1:0] bits in the SICSR register. Refer to
7
0
7
CR8
0
OSC
CPU =
CPU =
or f
f
CR7
OSC
0
OSC
f
OSC
/32)
/32.
CR6
0
Read/write
Read/write
CR5
0
CR4
0
MCO
CR3
ST7LITE49K2
Chapter
CR2
SMS
0
0
7.5.3.