ST72C254G2M6 STMicroelectronics, ST72C254G2M6 Datasheet - Page 17

• Manufacturer Part Number: ST72C254G2M6
• Description: IC MCU 8BIT 8K FLASH SOIC-28
• Manufacturer: STMicroelectronics
• Series: ST7r

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

6 SUPPLY, RESET AND CLOCK MANAGEMENT
The ST72104G, ST72215G, ST72216G and
ST72254G microcontrollers include a range of util-
ity features for securing the application in critical
situations (for example in case of a power brown-
out), and reducing the number of external compo-
nents. An overview is shown in
See
TICS" on page 96
Main Features
■
■
■
■
Figure 8. Clock, Reset and Supply Block Diagram
– 4 Crystal/Ceramic resonator oscillators
– 1 External RC oscillator
– 1 Internal RC oscillator
– Clock Filter
– Backup Safe Oscillator
Supply Manager with main supply low voltage
detection (LVD)
Reset Sequence Manager (RSM)
Multi-Oscillator (MO)
Clock Security System (CSS)
RESET
OSC2
OSC1
MCO
Section 13 "ELECTRICAL CHARACTERIS-
VDD
VSS
for more details.
OSCILLATOR
RESET SEQUENCE
MULTI-
(MO)
LOW VOLTAGE
MANAGER
DETECTOR
(RSM)
(LVD)
Figure
CLOCK SECURITY SYSTEM
8.
CLOCK
FILTER
ST72104Gx, ST72215Gx, ST72216Gx, ST72254Gx
(CSS)
CRSR
SAFE
OSC
PERIPHERAL
WATCHDOG
0
FROM
0
f
OSC
0
CONTROLLER
MAIN CLOCK
RF
(MCC)
LVD
0
CSS INTERRUPT
IE
CSS
D
WDG
f
RF
CPU
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