UPSD3234A-40U6T STMicroelectronics, UPSD3234A-40U6T Datasheet - Page 34

• Manufacturer Part Number: UPSD3234A-40U6T
• Description: IC MCU 8032 64KB FLASH 80TQFP
• Manufacturer: STMicroelectronics
• Series: µPSDr

Specifications of UPSD3234A-40U6T

• Core Processor: 8032
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: I²C, UART/USART, USB
• Peripherals: LVR, POR, PWM, WDT
• Number Of I /o: 46
• Program Memory Size: 288KB (288K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 4x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 80-TQFP, 80-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Architecture overview
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Figure 13. State sequence in UPSD323xx devices
(XTAL2)
a. 1-Byte, 1-Cycle Instruction, e.g. INC A
b. 2-Byte, 1-Cycle Instruction, e.g. ADD A, adrs
c. 1-Byte, 2-Cycle Instruction, e.g. INC DPTR
d. 1-Byte, 2-Cycle MOVX Instruction
Osc.
p1
S1
S1
S1
S1
S1
Read opcode
Read opcode
Read opcode
Read opcode
(MOVX)
p2
p1
S2
S2
S2
S2
S2
p2
p1
S3
S3
S3
S3
S3
p2
p1
UPSD3234A, UPSD3234BV, UPSD3233B, UPSD3233BV
S4
S4
S4
S4
S4
Read next
opcode and
discard
Read 2nd
Byte
Read next
opcode and
discard
Read next
opcode and
discard
p2
p1
S5
S5
S5
S5
S5
Addr
p2
Access External Memory
p1
S6
S6
S6
S6
S6
p2
p1
S1
S1
S1
No ALE
Read next
opcode
Read next
opcode
Read next
opcode and
discard
No Fetch
p2
Data
p1
S2
S2
S2
p2
p1
S3
S3
S3
p2
p1
S4
S4
S4
Read next
opcode and
discard
No Fetch
p2
p1
S5
S5
S5
p2
p1
S6
S6
S6
p2
Read next
opcode
Read next
opcode
AI06822