ST72C334J2B6 STMicroelectronics, ST72C334J2B6 Datasheet - Page 127
ST72C334J2B6
Manufacturer Part Number
ST72C334J2B6
Description
8-bit Microcontrollers - MCU Flash 8K SPI/SCI
Manufacturer
STMicroelectronics
Datasheet
1.ST72C334J2B6.pdf
(153 pages)
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
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ST72C334J2B6
Manufacturer:
ST
Quantity:
507
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EMC CHARACTERISTICS (Cont’d)
True Open Drain Pin Protection
The centralized protection (4) is not involved in the
discharge of the ESD stresses applied to true
open drain pads due to the fact that a P-Buffer and
diode to V
local protection between the pad and V
5b) is implemented to completely absorb the posi-
tive ESD discharge.
Figure 79. Positive Stress on a True Open Drain Pad vs. V
Figure 80. Negative Stress on a True Open Drain Pad vs. V
Figure 81. Multisupply Configuration
Main path
Path to avoid
Main path
V
V
DD
DD
SS
are not implemented. An additional
V
V
V
V
SS
SS
DD
DD
V
V
DDA
SSA
(5a)
(3b)
(3b)
(3b)
SS
(5a &
OUT
OUT
BACK TO BACK DIODE
Multisupply Configuration
When several types of ground (V
power supply (V
BETWEEN GROUNDS
reason (better noise immunity...), the structure
shown in
device against ESD.
(4)
(4)
ST72334J/N, ST72314J/N, ST72124J
SS
DD
Figure 81
IN
IN
DD
(2b)
, V
is implemented to protect the
DDA
(2b)
(1)
(1)
, ...) are available for any
SS
V
V
(3b)
(5b)
, V
DDA
SSA
SSA
, ...) and
127/153
V
V
V
V
SS
SS
DD
DD
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