ST72C334J4T6 STMicroelectronics, ST72C334J4T6 Datasheet - Page 123

• Manufacturer Part Number: ST72C334J4T6
• Description: MCU 8BIT FLASH SPI SCI 44TQFP
• Manufacturer: STMicroelectronics
• Series: ST7r

Specifications of ST72C334J4T6

• Core Processor: ST7
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: SCI, SPI
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 32
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 3.2 V ~ 5.5 V
• Data Converters: A/D 6x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-TQFP, 44-VQFP
• Processor Series: ST72C3x
• Core: ST7
• Data Bus Width: 8 bit
• Data Ram Size: 512 B
• Interface Type: SCI, SPI
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 4 bit
• Operating Supply Voltage: 3.2 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Development Tools By Supplier: ST7C334-INDART, ST7MDT2-EPB2/US
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8 bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-4838

16.7 EMC CHARACTERISTICS
Susceptibility tests are performed on a sample ba-
sis during product characterization.
16.7.1 Functional EMS
(Electro Magnetic Susceptibility)
Based on a simple running application on the
product (toggling 2 LEDs through I/O ports), the
product is stressed by two electro magnetic events
until a failure occurs (indicated by the LEDs).
Figure 74. EMC Recommended star network power supply connection
Notes:
1. Data based on characterization results, not tested in production.
2. The suggested 10 F and 0.1 F decoupling capacitors on the power supply lines are proposed as a good price vs. EMC
performance trade-off. They have to be put as close as possible to the device power supply pins. Other EMC recommen-
dations are given in other sections (I/Os, RESET, OSCx pin characteristics).
Symbol
V
V
FESD
FFTB
POWER
SUPPLY
SOURCE
Voltage limits to be applied on any I/O pin
to induce a functional disturbance
Fast transient voltage burst limits to be ap-
plied through 100pF on V
to induce a functional disturbance
V
DD
Parameter
DD
ST7
DIGITAL NOISE
FILTERING
and V
DD
pins
EXTERNAL
NOISE
FILTERING
10 F
V
conforms to IEC 1000-4-2
V
conforms to IEC 1000-4-4
DD
DD
0.1 F
A device reset allows normal operations to be re-
sumed.
5V, T
5V, T
0.1 F
ESD: Electro-Static Discharge (positive and
negative) is applied on all pins of the device until
a functional disturbance occurs. This test
conforms with the IEC 1000-4-2 standard.
FTB: A Burst of Fast Transient voltage (positive
and negative) is applied to V
a 100pF capacitor, until a functional disturbance
occurs. This test conforms with the IEC 1000-4-
4 standard.
Conditions
A
A
ST72334J/N, ST72314J/N, ST72124J
+25°C, f
+25°C, f
V
V
V
V
DD
SS
SSA
DDA
OSC
OSC
ST72XXX
8MHz
8MHz
2)
Neg
-1
-4
DD
1)
and V
Pos
1
4
SS
1)
through
123/153
Unit
kV