ST72F344K4T6 STMicroelectronics, ST72F344K4T6 Datasheet - Page 204

• 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
13.4
Table 92.
1. If the RC oscillator clock is selected, to improve clock stability and frequency accuracy, it is recommended to place a
2. See
3. Expected results. Data based on characterization, not tested in production
Figure 88. Typical RC frequency vs. RCCR
204/247
f
ACC
I
t
Symbol
RC
DD(RC)
su(RC)
decoupling capacitor, typically 100 nF, between the V
It is also recommended to perform the calibration on board.
RC
Internal RC oscillator on page 45
Internal RC oscillator
frequency
Accuracy of Internal RC
oscillator with
RCCR=RCCR0
RC oscillator current
consumption
RC oscillator setup time
Internal RC oscillator characteristics
Internal RC oscillator characteristics
Parameter
(1)
(2)
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0
RCCR = FF (reset value), T
V
RCCR = RCCR0
RCCR = FF (reset value), T
V
RCCR = RCCR1
T
T
T
T
T
T
T
A
A
A
A
A
A
A
DD
DD
= 25 °C, V
= 25 to +85 °C, V
= 25 to +85 °C, V
= -40 to +25 °C, V
= 25 °C, V
= 25 °C, V
= 25 °C, V
Typical Rc freq (MHz) = f(RCCR) @ 25°C
= 3 V
50
= 5 V
Doc ID 12321 Rev 5
DD
DD
DD
DD
DD
100
Conditions
= 4.5 to 5.5 V
= 5 V
= 5 V
and V
= 5 V
(2)
(2)
RCCR (decimal)
, T
, T
DD
DD
DD
A
A
SS
= 25 °C, V
= 25 °C, V
= 5 V
= 4.5 to 5.5 V
= 4.5 to 5.5 V
pins as close as possible to the ST7 device.
150
A
A
(3)
= 25 °C,
= 25 °C,
(3)
DD
DD
= 3 V
(3)
= 5 V
(3)
200
Rc @ 5V
Rc @ 3V
Min
-3.5
-1
-1
-3
-3
250
ST72344xx ST72345xx
600
1000
1000
Typ
625
612
(3)
10
Max
+3.5
+1
+1
+3
+7
(2)
Unit
kHz
μA
μs
%
%
%
%
%