ST72C334J2B6 STMicroelectronics, ST72C334J2B6 Datasheet - Page 111

• Manufacturer Part Number: ST72C334J2B6
• Description: 8-bit Microcontrollers - MCU Flash 8K SPI/SCI
• Manufacturer: STMicroelectronics

Specifications of ST72C334J2B6

• Product Category: 8-bit Microcontrollers - MCU
• Core: ST7
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 8 MHz
• Program Memory Size: 8 KB
• Data Ram Size: 384 B
• On-chip Adc: Yes
• Operating Supply Voltage: 3.2 V to 5.5 V
• Package / Case: SDIP-42
• Mounting Style: Through Hole
• A/d Bit Size: 8 bit
• A/d Channels Available: 8
• Data Rom Size: 256 B
• Interface Type: SCI, SPI
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Number Of Programmable I/os: 32
• Number Of Timers: 4 bit
• Program Memory Type: Flash
• Factory Pack Quantity: 13
• Supply Voltage - Max: 5 V
• Supply Voltage - Min: 3.2 V

OPERATING CONDITIONS (Cont’d)
16.3.2 Operating Conditions with Low Voltage Detector (LVD)
Subject to general operating conditions for V
Figure 57. High LVD Threshold Versus V
Figure 58. Medium LVD Threshold Versus V
Figure 59. Low LVD Threshold Versus V
Notes:
1. LVD typical data are based on T
2. Data based on characterization results, not tested in production.
3. The V
4.If the low LVD threshold is selected, when V
anteed to continue functioning until it goes into reset state. The specified V
on phase, but during a power down phase or voltage drop the device will function below this min. level.
V
V
V
Vt
t
g(VDD)
Symbol
DEVICE UNDER
DEVICE UNDER
DEVICE UNDER
IT+
IT-
hys
POR
IN THIS AREA
IN THIS AREA
IN THIS AREA
DD
RESET
RESET
RESET
rise time rate condition is needed to insure a correct device power-on and LVD reset. Not tested in production.
Reset release threshold (V
Reset generation threshold (V
LVD voltage threshold hysteresis
V
Filtered glitch delay on V
DD
rise time rate
f
f
f
OSC
OSC
OSC
12
12
16
12
16
16
8
0
8
0
8
0
[MHz]
[MHz]
[MHz]
2.5
2.5
2.5
Parameter
3)
V
IT-
FUNCTIONALITY AND RESET NOT GUARANTEED IN THIS AREA
A
FUNCTIONALITY AND RESET NOT GUARANTEED IN THIS AREA
=25°C. They are given only as design guidelines and are not tested.
3
3
3V
DD
FUNCTIONALITY NOT GUARANTEED IN THIS AREA
DD
3.2
2)
DD
rise)
V
FOR TEMPERATURES HIGHER THAN 85°C
FOR TEMPERATURES HIGHER THAN 85°C
FOR TEMPERATURES HIGHER THAN 85°C
IT-
SEE NOTE 4
fall)
DD
3.5
3.5
3.5V
DD
falls below 3.2V, (V
DD
V
DD
High Threshold
Med. Threshold
Low Threshold
High Threshold
Med. Threshold
Low Threshold
V
Not detected by the LVD
IT-
and f
and f
IT+
DD
, f
3.85
-V
OSC
and f
IT-
OSC
OSC
4
4
4
Conditions
, and T
OSC
for FLASH devices
for FLASH devices
4)
for FLASH devices
DD
A
4.5
4.5
4.5
ST72334J/N, ST72314J/N, ST72124J
.
minimum operating voltage), the device is guar-
DD
min. value is necessary in the device power
5
5
5
4.10
3.75
3.25
3.85
3.50
3.00
Min
200
0.2
2)4)
3)
2)
2)
2)
2)
2)
3)
5.5
5.5
5.5
Typ
4.30
3.90
3.35
4.05
3.65
3.10
250
SUPPLY VOLTAGE [V]
SUPPLY VOLTAGE [V]
SUPPLY VOLTAGE [V]
1)
FUNCTIONAL AREA
FUNCTIONAL AREA
FUNCTIONAL AREA
FUNCTIONALITY
NOT GUARANTEED
IN THIS AREA
FUNCTIONALITY
NOT GUARANTEED
IN THIS AREA
FUNCTIONALITY
NOT GUARANTEED
IN THIS AREA
Max
4.50
4.05
3.55
4.30
3.95
3.35
300
50
40
111/153
V/ms
Unit
mV
ns
V