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ST7232A Scheda tecnica(PDF) 124 Page - STMicroelectronics

Il numero della parte ST7232A
Spiegazioni elettronici  8-BIT MICROCONTROLLER WITH 8K FLASH/ROM, ADC, 4 TIMERS, SPI, SCI INTERFACE
PDF  157 Pages
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Produttore elettronici  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST7232A Scheda tecnica(HTML) 124 Page - STMicroelectronics

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ST7232A
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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). 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.
4. Data based on simulation results, not tested in production.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
VRM
Data retention mode 1)
HALT mode (or RESET)
1.6
V
DUAL VOLTAGE HDFLASH MEMORY
Symbol
Parameter
Conditions
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
≤ V
DD ≤ 5.5V
11.4
12.6
V
IDD
Supply current4)
Write / Erase
0
mA
IPP
VPP current
4)
Read (VPP=12V)
200
µA
Write / Erase
30
mA
tVPP
Internal VPP stabilization time
10
µs
tRET
Data retention
TA=85°C
40
years
NRW
Write erase cycles
TA=25°C
100
cycles
TPROG
TERASE
Programming or erasing tempera-
ture range
-40
25
85
°C
1



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