參數(shù)資料
型號: ST7FLCD1G9M1
廠商: STMICROELECTRONICS
元件分類: 微控制器/微處理器
英文描述: 8-BIT, FLASH, 24 MHz, MICROCONTROLLER, PDSO28
封裝: ROHS COMPLIANT, SO-28
文件頁數(shù): 87/96頁
文件大?。?/td> 846K
代理商: ST7FLCD1G9M1
Electrical Characteristics
ST7FLCD1
For most applications PI/O<PINT and may be neglected. PI/O may be significant if the device is
configured to drive Darlington bases or sink LED Loads. An approximate relationship between PD
and TJ (if PI/O is neglected) is given by:
PD = K÷ (TJ + 273°C) (2)
Therefore:
K = PD x (TA + 273°C) + θJA x PD
2 (3)
Where:
K is a constant for the particular part, which may be determined from equation (3) by
measuring PD (at equilibrium) for a known TA. Using this value of K, the values of PD and TJ ay
be obtained by solving equations (1) and (2) iteratively for any value of TA.
17.3
Thermal Characteristics
17.4
AC/DC Electrical Characteristics
All voltages are referred to VSS and TA = 0 to +70°C (unless otherwise specified)
Table 33: Thermal Characteristics
Symbol
Package
Value
Unit
θJA
28-pin Small Outline Packqge (SO28)
69
°C/W
Symbol
Parameter
Conditions
Min.
Typ.
Max.
Unit
General
VDD
Operating Supply Voltage
4.5
5
5.5
V
Operating Voltage for FLASH access
READ
3.8
V
WRITE/ERASE
4.5
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
1
10
uA
Control Timing
fOSC
External frequency
24
27
MHz
fCPU
Internal frequency
8
9
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
50000
6.25
3200000
400
tCPU
ms
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