st72321j STMicroelectronics, st72321j Datasheet - Page 149
st72321j
Manufacturer Part Number
st72321j
Description
8-bit Mcu With Nested Interrupts, Flash, 10-bit Adc, 5 Timers, Spi, Sci, I2c Interface
Manufacturer
STMicroelectronics
Datasheet
1.ST72321J.pdf
(179 pages)
- Current page: 149 of 179
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12.6 MEMORY CHARACTERISTICS
12.6.1 RAM and Hardware Registers
12.6.2 FLASH Memory
Notes:
1. Minimum V
isters (only in HALT mode). Not tested in production.
2. Data based on characterization results, not tested in production.
3. V
4. Data based on simulation results, not tested in production.
Warning: Do not connect 12V to V
DUAL VOLTAGE HDFLASH MEMORY
Symbol
Symbol
T
T
N
ERASE
V
f
t
t
V
PROG
PP
CPU
I
I
VPP
RET
DD
PP
RM
RW
PP
must be applied only during the programming or erasing operation and not permanently for reliability reasons.
Data retention mode
Operating frequency
Programming voltage
Supply current
V
Internal V
Data retention
Write erase cycles
Programming or erasing tempera-
ture range
DD
PP
supply voltage without losing data stored in RAM (in HALT mode or under RESET) or in hardware reg-
current
PP
4)
Parameter
Parameter
stabilization time
4)
1)
PP
3)
before V
DD
is powered on, as this may damage the device.
HALT mode (or RESET)
Read mode
Write / Erase mode
4.5V
RUN mode (f
Write / Erase
Power down mode / HALT
Read (V
Write / Erase
T
T
A
A
=55°C
=25°C
Conditions
Conditions
V
PP
DD
=12V)
CPU
5.5V
= 4MHz)
Min
11.4
Min
100
1.6
-40
20
0
1
2)
Typ
Typ
10
25
0
1
Max
Max
12.6
200
10
30
85
8
8
3
2)
ST72321J
cycles
149/179
years
Unit
Unit
MHz
mA
mA
µA
µs
°C
V
V
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