参数资料
型号: ST72311R9T3/XXX
厂商: STMICROELECTRONICS
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PQFP64
封装: 14 X 14 MM, TQFP-64
文件页数: 30/152页
文件大小: 1909K
代理商: ST72311R9T3/XXX
ST72311R, ST72511R, ST72532R
125/152
12.6 MEMORY CHARACTERISTICS
Subject to general operating condition for VDD, fOSC, and TA unless otherwise specified.
12.6.1 RAM and Hardware Registers
12.6.2 EEPROM Data Memory
12.6.3 EPROM Program Memory
Notes:
1. Minimum VDD supply voltage without losing data stored into RAM in HALT mode or under RESET) or into hardware
registers (only in HALT mode). Guaranteed by construction, not tested in production.
2. The data retention time increase when the TA decreases.
3. Data based on reliability test results and monitored in production.
4. Data given only as guidelines.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
VRM
Data retention mode 1)
HALT mode (or RESET)
1.6
V
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
tprog
Programming time
(for 1 up to 16 bytes at a time)
-40°C
≤T
A≤+85°C
10
ms
-40°C
≤T
A≤+125°C
15
tret
Data retention 3)
TA=+55°C
2)
20
Years
NRW
Write erase cycles 3)
TA=+25°C
300 000
Cycles
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
WERASE
UV lamp
Lamp wavelength 2537
15
Watt.sec
/cm2
terase
Erase Time 4)
UV lamp is placed 1 inch
from the device window
without any interposed
filters
15
20
min
tret
Data retention 3)
TA=+55°C
2)
20
years
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