ST72C334J2B6 STMicroelectronics, ST72C334J2B6 Datasheet - Page 26

• 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

ST72334J/N, ST72314J/N, ST72124J
9 SUPPLY, RESET AND CLOCK MANAGEMENT
The ST72334J/N, ST72314J/N and ST72124J mi-
crocontrollers include a range of utility features for
securing the application in critical situations (for
example in case of a power brown-out), and re-
ducing the number of external components. An
overview is shown in
See
TICS" on page 107
Main Features
Figure 12. Clock, Reset and Supply Block Diagram
26/153
Supply Manager with main supply low voltage
detection (LVD)
Reset Sequence Manager (RSM)
RESET
OSC2
OSC1
Section 16 "ELECTRICAL CHARACTERIS-
VDD
VSS
for more details.
OSCILLATOR
Figure
RESET SEQUENCE
MULTI-
(MO)
LOW VOLTAGE
MANAGER
DETECTOR
(RSM)
(LVD)
12.
CLOCK SECURITY SYSTEM
CLOCK
FILTER
(CSS)
CRSR
SAFE
OSC
PERIPHERAL
– 4 Crystal/Ceramic resonator oscillators
– 1 External RC oscillator
– 1 Internal RC oscillator
– Clock Filter
– Backup Safe Oscillator
WATCHDOG
Multi-Oscillator (MO)
Clock Security System (CSS)
0
FROM
0
f
OSC
0
CONTROLLER
MAIN CLOCK
RF
LVD
TO
0
CSS INTERRUPT
IE
CSS
D
WDG
RF