參數(shù)資料
型號(hào): ST72F321J9T7
廠商: STMICROELECTRONICS
元件分類: 微控制器/微處理器
英文描述: 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PQFP44
封裝: 10 X 10 MM, PLASTIC, TQFP-44
文件頁數(shù): 54/176頁
文件大?。?/td> 1112K
代理商: ST72F321J9T7
ST72321J
147/176
12.6 MEMORY CHARACTERISTICS
12.6.1 RAM and Hardware Registers
12.6.2 FLASH Memory
Notes:
1. Minimum VDD supply voltage without losing data stored in RAM (in HALT mode or under RESET) or in hardware reg-
isters (only in HALT mode). Guaranteed by construction, not tested in production.
2. Data based on characterization results, not tested in production.
3. VPP must be applied only during the programming or erasing operation and not permanently for reliability reasons.
Symbol
Parameter
Conditi ons
Min
Typ
Max
Unit
VRM
Data retention mode 1)
HALT mode (or RESET)
1.6
V
DUAL VOLTAGE HDFLASH MEMORY
Symbol
Parameter
Conditi ons
Min 2)
Typ
Max 2)
Unit
fCPU
Operating frequency
read mode
0
8
MHz
write / erase mode
1
8
VPP
Programming voltage 3)
4.5V <= VDD <= 5.5V
11.4
12.6
V
IDD
Supply current
RUN mode (fCPU = 4MHz)
3
mA
Write / Erase
0
Power down mode / HALT
1
10
A
IPP
VPP current
Read
VPP >VDD
VPP<=VDD
200
±15
Write / Erase
30
mA
tVPP
Internal VPP stabilization time
10
s
tRET
Data retention
TA=55°C
20
years
NRW
Write erase cycles
TA=25°C
100
cycles
TPROG
TERASE
Programming or erasing tempera-
ture range
-40
25
85
°C
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