UPSD3433E-40T6 STMicroelectronics, UPSD3433E-40T6 Datasheet - Page 28

• Manufacturer Part Number: UPSD3433E-40T6
• Description: MCU 8BIT 8032 128KB FLASH 52TQFP
• Manufacturer: STMicroelectronics
• Series: µPSDr

Specifications of UPSD3433E-40T6

• 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: 35
• Program Memory Size: 160KB (160K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K 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: 52-TQFP, 52-VQFP
• For Use With: 497-5518 - EVAL BOARD RFID READER
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Other names: 497-4906

Hardware description
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Hardware description
The UPSD34xx has a modular architecture built from a stacked die process. There are two
dice, one is designated “MCU module” in this document, and the other is designated “PSD
module” (see
5 V tolerant I/O. The PSD module is either a 3.3 V die or a 5 V die, depending on the
UPSD34xx device as described below.
The MCU module consists of a fast 8032 core, that operates with 4 clocks per instruction
cycle, and has many peripheral and system supervisor functions. The PSD module provides
the 8032 with multiple memories (two Flash and one SRAM) for program and data,
programmable logic for address decoding and for general-purpose logic, and additional I/O.
The MCU module communicates with the PSD module through internal address and data
busses (AD0 – AD15) and control signals (RD, WR, PSEN, ALE, RESET).
There are slightly different I/O characteristics for each module. I/Os for the MCU module are
designated as Ports 1, 3, and 4. I/Os for the PSD module are designated as Ports A, B, C,
and D.
For all 5 V UPSD34xx devices, a 3.3 V MCU module is stacked with a 5 V PSD module. In
this case, a 5 V UPSD34xx device must be supplied with 3.3 V
5.0 V
tolerance to 5 V devices (they can be directly driven by external 5 V devices and they can
directly drive external 5 V devices while producing a V
A, B, C, and D of the PSD module are true 5 V ports.
For all 3.3 V UPSD34xxV devices, a 3.3 V MCU module is stacked with a 3.3 V PSD
module. In this case, a 3.3 V UPSD34xx device needs to be supplied with a single 3.3 V
voltage source at both V
connected to external 5 V peripherals devices if desired. Ports A, B, C, and D of the PSD
module are 3.3 V ports, which are not tolerant to external 5 V devices.
Refer to
80-pin UPSD34xx devices provide access to 8032 address, data, and control signals on
external pins to connect external peripheral and memory devices. 52-pin UPSD34xx
devices do not provide access to the 8032 system bus.
All non-volatile memory and configuration portions of the UPSD34xx device are
programmed through the JTAG interface and no special programming voltage is needed.
This same JTAG port is also used for debugging of the 8032 core at runtime providing
breakpoint, single-step, display, and trace features. A non-volatile security bit may be
programmed to block all access via JTAG interface for security. The security bit is defeated
only by erasing the entire device, leaving the device blank and ready to use again.
Table 3.
5 V:
UPSD34xx
3.3 V:
UPSD34xxV
Device type
DD
for the PSD module. Ports 3 and 4 of the MCU module are 3.3 V ports with
Table 3
Port type and voltage source combinations
Figure 4 on page
V
for port type and voltage source requirements.
CC
module
3.3 V
3.3 V
for MCU
CC
and V
29). In all cases, the MCU module die operates at 3.3 V with
V
DD
DD
module
5.0 V
3.3 V
for PSD
. I/O pins on Ports 3 and 4 are 5 V tolerant and can be
UPSD3422, UPSD3433, UPSD3434, UPSD3454
3.3 V (Ports 3 and 4 are
3.3 V (Ports 3 and 4 are
Ports 1, 3, and 4 on
MCU module
5 V tolerant)
5 V tolerant)
OH
of 2.4V min and V
CC
for the MCU module and
3.3 V. NOT 5 V tolerant
Ports A, B, C, and D
on PSD module
CC
max). Ports
5 V