ST72C334J4T6 STMicroelectronics, ST72C334J4T6 Datasheet - Page 26

• 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

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