ST72C254G2M6 STMicroelectronics, ST72C254G2M6 Datasheet - Page 31

• 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

I/O PORTS (Cont’d)
Figure 21. I/O Port General Block Diagram
Table 6. I/O Port Mode Options
Legend: NI - not implemented
Input
Output
REGISTER
ACCESS
INTERRUPT
SOURCE (ei
EXTERNAL
Off - implemented not activated
On - implemented and activated
DDR SEL
OR SEL
DR SEL
Floating with/without Interrupt
Pull-up with/without Interrupt
Push-pull
Open Drain (logic level)
True Open Drain
Configuration Mode
DDR
OR
x
DR
)
POLARITY
SELECTION
ALTERNATE
OUTPUT
ALTERNATE
ENABLE
If implemented
1
0
FROM
OTHER
BITS
1
0
Pull-Up
ST72104G, ST72215G, ST72216G, ST72254G
Off
On
Off
NI
Note: The diode to V
true open drain pads. A local protection between
the pad and V
vice against positive stress.
N-BUFFER
PULL-UP
CONFIGURATION
P-Buffer
Off
On
Off
NI
SS
SCHMITT
TRIGGER
CMOS
is implemented to protect the de-
V
DD
DD
NI (see note)
is not implemented in the
to V
On
DD
P-BUFFER
(see table below)
V
Diodes
DD
DIODES
(see table below)
PULL-UP
(see table below)
ALTERNATE
ANALOG
INPUT
to V
INPUT
PAD
On
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