ST72C254G2M6 STMicroelectronics, ST72C254G2M6 Datasheet - Page 24
![IC MCU 8BIT 8K FLASH SOIC-28](/photos/6/56/65690/stmicroelectronics-28-soic_sml.jpg)
ST72C254G2M6
Manufacturer Part Number
ST72C254G2M6
Description
IC MCU 8BIT 8K FLASH SOIC-28
Manufacturer
STMicroelectronics
Series
ST7r
Datasheets
1.INDART-ST72C254.pdf
(3 pages)
2.ST72C104G1M6.pdf
(141 pages)
3.ST72C215G2M6.pdf
(140 pages)
Specifications of ST72C254G2M6
Core Processor
ST7
Core Size
8-Bit
Speed
16MHz
Connectivity
I²C, SPI
Peripherals
LVD, POR, PWM, WDT
Number Of I /o
22
Program Memory Size
8KB (8K x 8)
Program Memory Type
FLASH
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
3.2 V ~ 5.5 V
Data Converters
A/D 6x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
28-SOIC (7.5mm Width)
Controller Family/series
ST7
No. Of I/o's
22
Ram Memory Size
256Byte
Cpu Speed
8MHz
No. Of Timers
2
Rohs Compliant
Yes
Processor Series
ST72C2x
Core
ST7
Data Bus Width
8 bit
Data Ram Size
256 B
Interface Type
I2C, SPI
Maximum Clock Frequency
16 MHz
Number Of Programmable I/os
22
Number Of Timers
3 bit
Operating Supply Voltage
3.2 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Development Tools By Supplier
ST7MDT1-DVP2/US
Minimum Operating Temperature
- 40 C
On-chip Adc
8 bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
In Transition
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ST72C254G2M6
Manufacturer:
ST
Quantity:
20 000
ST72104G, ST72215G, ST72216G, ST72254G
7.6 MAIN CLOCK CONTROLLER (MCC)
The Main Clock Controller (MCC) supplies the
clock for the ST7 CPU and its internal peripherals.
It allows SLOW power saving mode to be man-
aged by the application.
All functions are managed by the Miscellaneous
register 1 (MISCR1).
The MCC block consists of:
Figure 14. Main Clock Controller (MCC) Block Diagram
24/140
A programmable CPU clock prescaler
A clock-out signal to supply external devices
f
OSC
DIV 2
f
OSC
/2
MISCR1
-
-
MCO
ALTERNATE
FUNCTION
PORT
-
DIV 2, 4, 8, 16
The prescaler allows the selection of the main
clock frequency and is controlled by three bits of
the MISCR1: CP1, CP0 and SMS.
The clock-out capability consists of a dedicated
I/O port pin configurable as an f
drive external devices. It is controlled by the MCO
bit in the MISCR1 register.
See
TERS" on page 36
-
CP1 CP0
Section 11 "MISCELLANEOUS REGIS-
SMS
for more details.
f
CPU
CPU
CLOCK TO CAN
PERIPHERALS
TO CPU AND
PERIPHERAL
CPU CLOCK
clock output to
MCO