ST72C334N2B6 STMicroelectronics, ST72C334N2B6 Datasheet - Page 88

• Manufacturer Part Number: ST72C334N2B6
• Description: Microcontrollers (MCU) Flash 8K SPI/SCI
• Manufacturer: STMicroelectronics

Specifications of ST72C334N2B6

• Data Bus Width: 8 bit
• Program Memory Type: Flash
• Program Memory Size: 8 KB
• Data Ram Size: 384 B
• Interface Type: SCI, SPI
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 44
• Number Of Timers: 16 bit
• Operating Supply Voltage: 3.2 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: Through Hole
• Package / Case: SDIP-56
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8 bit
• Lead Free Status / Rohs Status: No

ST72334J/N, ST72314J/N, ST72124J
SERIAL COMMUNICATIONS INTERFACE (Cont’d)
Figure 54. SCI Baud Rate and Extended Prescaler Block Diagram
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f
CPU
/16
/2
EXTE NDED TRANS MITTER PRESCALE R REGISTER
EXTE NDED RECEIVER PRESCALER REGISTER
EXTE NDED PRESCALER TRANSMITTE R RATE CONTROL
EXTE NDED PRESCALER RECEIVER RATE CONTROL
/PR
SCP1
EXTENDED PRESCALER
CONVENTIONAL BAUD RATE GENERATOR
SCP0SCT2 SCT1 SCT0 SCR2 SCR1SCR0
TRANSMIT TER RATE
CONTROL
RECEIVER RATE
CONTROL
ERPR
ETPR
BRR
TRANSMI TTER
RECEIVER
CLOCK
CLOCK