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ST72774 bảng dữ liệu(PDF) 134 Page - STMicroelectronics

tên linh kiện ST72774
Giải thích chi tiết về linh kiện  8-BIT USB MCU FOR MONITORS, WITH UP TO 60K OTP, 1K RAM, ADC, TIMER, SYNC, TMU, PWM/BRM, H/W DDC & I2C
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
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ST72774 bảng dữ liệu(HTML) 134 Page - STMicroelectronics

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6.2 AC/DC ELECTRICAL CHARACTERISTICS
(T
A = 0 to +70°C unless otherwise specified)
Note 1: HALT mode no longer exists.
Note 2: The USB cell must be put in suspend mode as well as the MCU in HALT mode. Since the latter no longer exists
for enhanced arcing protection, the measurement of the USB suspend consumption parameter is no longer relevant.
Note: : The minimum period tILIL should not be less than the number of cycle times it takes to execute the interrupt service
routine plus 21 cycles.
GENERAL
Symbol
Parameter
Conditions
Min
Typ.
Max
Unit
VDD
Operating Supply Voltage
RUN & WAIT mode
4.0
5
5.5
V
IDD
CPU RUN mode
I/O in input mode
VDD = 5V
fCPU = 8 MHz,
TA = 20
° C
14
18
mA
CPU WAIT mode
12
18
mA
CPU HALT mode (see Note 1)
N/A
USB Suspend mode (see Note 2)
N/A
CONTROL TIMING
Symbol
Parameter
Conditions
Value
Unit
Min
Typ.
Max
fOSC
fCPU
Frequency of Operation:
external frequency
internal frequency
internal frequency
fOSC= 24MHz
fOSC=12MHz
24
8
4
MHz
tBU
Startup Time Built-Up Time
Crystal Resonator
8
20
ms
tRL
External RESET
Input pulse Width
1000
ns
tPORL
Internal Power Reset Duration
4096
tCPU
tPOWL
Watchdog RESET
Output Pulse Width
500
ns
tDOG
Watchdog Time-out
fCPU = 8 MHz
49152
6
3145728
384
tCPU
ms
tILIL
Interrupt Pulse Period
(1)
tCPU
tOXOV
Crystal Oscillator
Start-up Time
50
ms
tDDR
Power up rise time
VDD min
1
100
ms



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