ST72F344K4T6 STMicroelectronics, ST72F344K4T6 Datasheet - Page 224

• Manufacturer Part Number: ST72F344K4T6
• Description: MCU 8BIT 16KB FLASH MEM 32-LQFP
• Manufacturer: STMicroelectronics
• Series: ST7r

Specifications of ST72F344K4T6

• Core Processor: ST7
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: I²C, LIN, SCI, SPI
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 24
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-LQFP
• Processor Series: ST72F3x
• Core: ST7
• Data Bus Width: 8 bit
• Data Ram Size: 1 KB
• Interface Type: I2C, SCI, SPI
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 34
• Number Of Timers: 2
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Development Tools By Supplier: ST72F34X-SK/RAIS, ST7MDT40-EMU3, STX-RLINK
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 8 Channel
• For Use With: 497-5046 - KIT TOOL FOR ST7/UPSD/STR7 MCU
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-5611

Electrical characteristics
13.11
13.11.1
Note:
224/247
Communication interface characteristics
I
Subject to general operating conditions for V
Refer to I/O port characteristics for more details on the input/output alternate function
characteristics (SDAI and SCLI). The ST7 I
and timing requirements of the Standard I
T
Table 110. I
1. The I
2. Not tested in production within the whole operating range. Guaranteed by design/validation test results.
The following table gives the values to be written in the I2CCCR register to obtain the
required I
Table 111. SCL frequency table (multimaster I
1. R
For speeds around 200 kHz, achieved speed can have
ranges, achieved speed can have
The above variations depend on the accuracy of the external components used.
2
f
A
400
300
200
100
f
Symbol
SCL
SCL3SNS
50
20
C and I²C3SNS interfaces
= -40°C to 85°C, unless otherwise specified.
f
SCL
P
= External pull-up resistance, f
R
2
C and I2C3SNS interfaces will not function below the minimum clock speed of 4 MHz.
P
=3.3kΩ R
2
84h
11h
25h
60h
NA
NA
C SCL line frequency.
I²C SCL frequency
I²C3SNS SCL frequency
V
DD
2
C and I²C3SNS interfaces characteristics
= 3.3 V
P
Parameter
=4.7kΩ R
84h
10h
24h
5Fh
NA
NA
f
CPU
= 4 MHz.
P
SCL
Doc ID 12321 Rev 5
=3.3kΩ R
84h
11h
25h
60h
NA
NA
V
= I
(2)
±
DD
2
2% tolerance.
C speed, NA = Not achievable.
= 5 V
f
V
CPU
DD
P
=4.7kΩ R
2
84h
11h
26h
62h
I2CCCR value
NA
NA
= 2.7 V to 5.5 V
=4 MHz to 8 MHz
C communication protocol.
2
C and I2C3SNS interfaces meet the electrical
DD
Conditions
, f
OSC
2
P
C interface)
=3.3kΩ R
8Ah
4Bh
FFh
84h
86h
25h
, and T
V
±
DD
5% tolerance, for other speed
= 3.3 V
(1)
A
unless otherwise specified.
,
P
=4.7kΩ R
8Ah
4Ch
FFh
84h
86h
24h
(1)
f
CPU
ST72344xx ST72345xx
= 8 MHz.
Min
P
=3.3kΩ R
8Bh
FFh
84h
85h
28h
53h
V
DD
Max
400
400
= 5 V
P
=4.7kΩ
8Ch
FFh
84h
87h
28h
54h
Unit
kHz
kHz