ST72F321J9TCTR STMicroelectronics, ST72F321J9TCTR Datasheet - Page 141
ST72F321J9TCTR
Manufacturer Part Number
ST72F321J9TCTR
Description
IC MCU 8BIT 60KB FLASH 44-TQFP
Manufacturer
STMicroelectronics
Series
ST7r
Datasheet
1.ST72F321AR7T6.pdf
(193 pages)
Specifications of ST72F321J9TCTR
Core Processor
ST7
Core Size
8-Bit
Speed
8MHz
Connectivity
I²C, SCI, SPI
Peripherals
LVD, POR, PWM, WDT
Number Of I /o
32
Program Memory Size
60KB (60K x 8)
Program Memory Type
FLASH
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
3.8 V ~ 5.5 V
Data Converters
A/D 16x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
44-TQFP, 44-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ST72F321J9TCTR
Manufacturer:
STMicroelectronics
Quantity:
10 000
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OPERATING CONDITIONS (Cont’d)
12.3.2 Operating Conditions with Low Voltage Detector (LVD)
Subject to general operating conditions for V
Notes:
1. Data based on characterization results, tested in production for ROM devices only.
2. If the medium or low thresholds are selected, the detection may occur outside the specified operating voltage range.
Below 3.8V, device operation is not guaranteed.
3. Data based on characterization results, not tested in production.
3. When Vt
V
12.3.3 Auxiliary Voltage Detector (AVD) Thresholds
Subject to general operating conditions for V
1. Data based on characterization results, tested in production for ROM devices only.
12.3.4 External Voltage Detector (EVD) Thresholds
Subject to general operating conditions for V
1. Data based on characterization results, not tested in production.
V
V
V
Vt
t
V
V
V
ΔV
V
V
V
IT+(LVD)
g(VDD)
Symbol
Symbol
Symbol
IT+(LVD)
IT-(LVD)
hys(LVD)
IT+(AVD)
IT-(AVD)
hys(AVD)
IT+(EVD)
IT-(EVD)
hys(EVD)
POR
IT-
threshold.
POR
Reset release threshold
(V
Reset generation threshold
(V
LVD voltage threshold hysteresis V
V
V
ed) by LVD
1 ⇒ 0 AVDF flag toggle threshold
(V
0 ⇒ 1 AVDF flag toggle threshold
(V
AVD voltage threshold hysteresis
Voltage drop between AVD flag set
and LVD reset activated
1 ⇒ 0 AVDF flag toggle threshold
(V
0 ⇒ 1 AVDF flag toggle threshold
(V
EVD voltage threshold hysteresis
DD
DD
DD
DD
DD
DD
DD
DD
is faster than 100 μs/V, the Reset signal is released after a delay of max. 42µs after V
rise time
glitches filtered (not detect-
rise)
rise)
rise)
fall)
fall)
fall)
1)
1)
Parameter
3)
Parameter
Parameter
3)2)
VD level = High in option byte
VD level = Med. in option byte
VD level = Low in option byte
VD level = High in option byte
VD level = Med. in option byte
VD level = Low in option byte
LVD enabled
IT+(LVD)
VD level = High in option byte
VD level = Med. in option byte
VD level = Low in option byte
VD level = High in option byte
VD level = Med. in option byte
VD level = Low in option byte
V
V
V
DD
DD
DD
IT+(AVD)
IT-(AVD)
IT+(EVD)
, f
, f
, f
CPU
CPU
CPU
-V
Conditions
IT-(LVD)
-V
-V
Conditions
-V
, and T
, and T
, and T
Conditions
IT-(LVD)
IT-(AVD)
IT-(EVD)
A
A
A
ST72321Rx ST72321ARx ST72321Jx
.
.
.
2)
2)
2)
2)
3.55
2.95
3.35
6μs/V
4.0
2.8
Min
3.8
1.15
Min
1)
1)
3.95
1.1
3.75
1)
1)
1)
3.4
4.4
4.2
3.2
Min
1)
1)
1)
1)
1)
1)
Typ
3.75
3.15
3.55
200
4.2
4.0
3.0
Typ
1.26
200
1.2
Typ
4.15
200
450
4.6
3.6
4.4
4.0
3.4
100ms/V
3.75
3.15
3.35
4.25
Max
4.0
4.5
40
Max
1.35
4.65
1.3
DD
4.2
Max
4.9
4.4
3.8
3.6
1)
1))
1)
1)
1)
crosses the
1)
1)
1)
1)
1)
1)
141/193
Unit
Unit
mV
mV
Unit
ns
mV
mV
V
V
V
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