UPSD3234A-40U6T STMicroelectronics, UPSD3234A-40U6T Datasheet - Page 35

• 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: -

UPSD3234A, UPSD3234BV, UPSD3233B, UPSD3233BV
3
UPSD323xx hardware description
The UPSD323xx devices have a modular architecture with two main functional modules: the
MCU module and the PSD module. The MCU module consists of a standard 8032 core,
peripherals and other system supporting functions. The PSD module provides configurable
Program and Data memories to the 8032 CPU core. In addition, it has its own set of I/O
ports and a PLD with 16 macrocells for general logic implementation. Ports A,B,C, and D
are general purpose programmable I/O ports that have a port architecture which is different
from Ports 0-4 in the MCU module.
The PSD module communicates with the CPU Core through the internal address, data bus
(A0-A15, D0-D7) and control signals (RD_, WR_, PSEN_ , ALE, RESET_). The user
defines the Decoding PLD in the PSDsoft Development Tool and can map the resources in
the PSD module to any program or data address space.
Figure 14. UPSD323xx functional modules
Intr, Timers,I 2 C
Port 3, UART,
2 UARTs
Interrupt
Port 3
PSD MODULE
MCU MODULE
8032 Core
Page Register
Decode PLD
256 Byte SRAM
JTAG ISP
Counters
3 Timer /
Port 1
JTAG, PLD I/O
2nd UART and ADC
Port 1, Timers and
and GPIO
I2C
Port C,
1Mb or 2Mb
Main Flash
Channel
CPLD - 16 MACROCELLS
ADC
4
8032 Internal Bus
PSD Internal Bus
Port A & B, PLD
I/O and GPIO
Secondary
256Kb
Flash
Channels
PWM
5
Port 4 PWM
and DDC
w/ 256 Byte
Port D
GPIO
SRAM
64Kb
SRAM
DDC
RD,PSEN
WR,ALE
A0-A15
UPSD323xx hardware description
Transceiver
Interface
Dedicated
USB Pins
USB
Bus
&
VCC, GND,
D0-D7
Dedicated
XTAL
Pins
Reset Logic
LVD & WDT
Reset
AI06619C
Port 0, 2
Ext. Bus
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