UPSD3454E-40U6 STMicroelectronics, UPSD3454E-40U6 Datasheet - Page 128

• Manufacturer Part Number: UPSD3454E-40U6
• Description: MCU 8BIT 8032 256K FLASH 80-TQFP
• Manufacturer: STMicroelectronics
• Series: µPSDr

Specifications of UPSD3454E-40U6

• Core Processor: 8032
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: I²C, IrDA, SPI, UART/USART, USB
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 46
• Program Memory Size: 288KB (288K x 8)
• Program Memory Type: FLASH
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 80-TQFP, 80-VQFP
• For Use With: 497-5518 - EVAL BOARD RFID READER
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

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2
C interface
Figure 42. I
SCL / P3.7
SDA / P3.6
AI09626b
2
C interface SIOE block diagram
output
output
Open-
Open-
drain
drain
Serial DATA OUT
Input
Input
UPSD3422, UPSD3433, UPSD3434, UPSD3454
Serial DATA IN
b7
b7
Shift Direction
generation
S1ADR - Device address
Arbitration
and sync
S1DAT - Shift register
Clock
Comparator
S1CON - Interface control
S1STA - Interface status
control (Start condition)
S1SETUP - Sample rate
7
7
Timing and
control
b0
b0
ACK
Bit
INTR to 8032
(f OSC )
Periph
Clock
8
8
8
8
8