ST72C254G2M6 STMicroelectronics, ST72C254G2M6 Datasheet - Page 83
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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
I
I
Read / Write
Reset Value: 0000 0000 (00h)
Bit 7 = FM/SM Fast/Standard I
This bit is set and cleared by software. It is not
cleared when the interface is disabled (PE=0).
0: Standard I
1: Fast I
Bit 6:0 = CC[6:0] 7-bit clock divider.
These bits select the speed of the bus (F
pending on the I
when the interface is disabled (PE=0).
Refer to the Electrical Characteristics section for
the table of values.
Note: The programmed F
SCL and SDA lines.
FM/SM
2
2
C BUS INTERFACE (Cont’d)
C CLOCK CONTROL REGISTER (CCR)
7
CC6
2
C mode
2
CC5
C mode
2
C mode. They are not cleared
CC4
SCL
CC3
assumes no load on
2
C mode.
CC2
CC1
SCL
CC0
ST72104Gx, ST72215Gx, ST72216Gx, ST72254Gx
) de-
0
I
Read / Write
Reset Value: 0000 0000 (00h)
Bit 7:0 = D[7:0] 8-bit Data Register.
These bits contain the byte to be received or trans-
mitted on the bus.
– Transmitter mode: Byte transmission start auto-
– Receiver mode: the first data byte is received au-
2
C DATA REGISTER (DR)
matically when the software writes in the DR reg-
ister.
tomatically in the DR register using the least sig-
nificant bit of the address.
Then, the following data bytes are received one
by one after reading the DR register.
D7
7
D6
D5
D4
D3
D2
D1
83/141
D0
0