ST72T311J2T6 STMicroelectronics, ST72T311J2T6 Datasheet - Page 54

• Manufacturer Part Number: ST72T311J2T6
• Description: 8-bit Microcontrollers - MCU OTP EPROM 8K SPI/I2C
• Manufacturer: STMicroelectronics

Specifications of ST72T311J2T6

• 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 V to 5.5 V
• Package / Case: TQFP-44
• Mounting Style: SMD/SMT
• A/d Bit Size: 8 bit
• A/d Channels Available: 6
• Interface Type: SCI, SPI
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Number Of Programmable I/os: 44
• Number Of Timers: 2
• On-chip Dac: No
• Program Memory Type: OTP EPROM
• Factory Pack Quantity: 160
• Supply Voltage - Max: 5.5 V
• Supply Voltage - Min: 3 V

ST72E311 ST72T311
SERIAL COMMUNICATIONS INTERFACE (Cont’d)
Figure 34. SCI Block Diagram
54/101
TDO
RDI
54
f
CPU
TIE
CR2
TRANSMITTER
INTERRUPT
TCIE
CONTROL
CLOCK
Transmit Data Register (TDR)
/16
SCI
TRANSMIT
CONTROL
RIE
Transmit Shift Register
Write
ILIE
/2
TE
RE
/PR
RWU
WAKE
UNIT
UP
R8
SBK
T8
CONVENTIONAL BAUD RATE GENERATOR
SCP1
Received Data Register (RDR)
Read
SCP0 SCT2 SCT1 SCT0 SCR2 SCR1SCR0
-
Received Shift Register
TDRE TC RDRF IDLE OR
TRANSMITTER RATE
M
CONTROL
WAKE
RECEIVER
CONTROL
(DATA REGISTER) DR
-
RECEIVER RATE
CONTROL
-
CR1
-
NF
BRR
RECEIVER
FE
CLOCK
SR
-