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What is uPSD3254BV-24U1T?

This electronic component, produced by the manufacturer "STMicroelectronics", performs the same function as "Flash Programmable System Devices with 8032 Microcontroller Core".


uPSD3254BV-24U1T Datasheet PDF - STMicroelectronics

Part Number uPSD3254BV-24U1T
Description Flash Programmable System Devices with 8032 Microcontroller Core
Manufacturers STMicroelectronics 
Logo STMicroelectronics Logo 


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UPSD3254A, UPSD3254BV
UPSD3253B, UPSD3253BV
Flash Programmable System Devices
with 8032 Microcontroller Core
FEATURES SUMMARY
s The uPSD325X devices combine a Flash PSD
architecture with an 8032 microcontroller core.
The uPSD325X devices of Flash PSDs feature
dual banks of Flash memory, SRAM, general
purpose I/O and programmable logic, supervi-
sory functions and access via USB, I2C, ADC,
DDC and PWM channels, and an on-board
8032 microcontroller core, with two UARTs,
three 16-bit Timer/Counters and two External
Interrupts. As with other Flash PSD families, the
uPSD325X devices are also in-system pro-
grammable (ISP) via a JTAG ISP interface.
s Large 32KByte SRAM with battery back-up
option
s Dual bank Flash memories
– 128KByte or 256KByte main Flash memory
– 32KByte secondary Flash memory
s Content Security
– Block access to Flash memory
s Programmable Decode PLD for flexible address
mapping of all memories within 8032 space.
s High-speed clock standard 8032 core (12-cycle)
s USB Interface (some devices only)
s I2C interface for peripheral connections
s 5 Pulse Width Modulator (PWM) channels
s Analog-to-Digital Converter (ADC)
s Standalone Display Data Channel (DDC)
s Six I/O ports with up to 46 I/O pins
s 3000 gate PLD with 16 macrocells
s Supervisor functions with Watchdog Timer
s In-System Programming (ISP) via JTAG
s Zero-Power Technology
s Single Supply Voltage
– 4.5 to 5.5V
– 3.0 to 3.6V
Figure 1. 52-lead, Thin, Quad, Flat Package
TQFP52 (T)
Figure 2. 80-lead, Thin, Quad, Flat Package
TQFP80 (U)
September 2003
Rev. 1.2
1/175

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uPSD3254BV-24U1T equivalent
UPSD3254A, UPSD3254BV, UPSD3253B, UPSD3253BV
TIMER/COUNTERS (TIMER 0, TIMER 1 AND TIMER 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Timer 0 and Timer 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Control Register (TCON) (Table 36.). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Description of the TCON Bits (Table 37.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
TMOD Register (TMOD) (Table 38.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Description of the TMOD Bits (Table 39.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Timer/Counter Mode 0: 13-bit Counter (Figure 22.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Timer/Counter Mode 2: 8-bit Auto-reload (Figure 23.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Timer/Counter Mode 3: Two 8-bit Counters (Figure 24.). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Timer 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Timer/Counter 2 Control Register (T2CON) (Table 40.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Description of the T2CON Bits (Table 41.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Timer/Counter2 Operating Modes (Table 42.). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Timer 2 in Capture Mode (Figure 25.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Timer 2 in Auto-Reload Mode (Figure 26.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
STANDARD SERIAL INTERFACE (UART) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Multiprocessor Communications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Serial Port Control Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Serial Port Control Register (SCON) (Table 43.). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Description of the SCON Bits (Table 44.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Timer 1-Generated Commonly Used Baud Rates (Table 45.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Serial Port Mode 0, Block Diagram (Figure 27.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Serial Port Mode 0, Waveforms (Figure 28.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Serial Port Mode 1, Block Diagram (Figure 29.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Serial Port Mode 1, Waveforms (Figure 30.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Serial Port Mode 2, Block Diagram (Figure 31.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Serial Port Mode 2, Waveforms (Figure 32.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Serial Port Mode 3, Block Diagram (Figure 33.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Serial Port Mode 3, Waveforms (Figure 34.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
ANALOG-TO-DIGITAL CONVERTOR (ADC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
ADC Interrupt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
A/D Block Diagram (Figure 35.). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
ADC SFR Memory Map (Table 46.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Description of the ACON Bits (Table 47.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
ADC Clock Input (Table 48.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
PULSE WIDTH MODULATION (PWM). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
4-channel PWM Unit (PWM 0-3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Four-Channel 8-bit PWM Block Diagram (Figure 36.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
PWM SFR Memory Map (Table 49.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
5/175


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Featured Datasheets

Part NumberDescriptionMFRS
uPSD3254BV-24U1TThe function is Flash Programmable System Devices with 8032 Microcontroller Core. STMicroelectronicsSTMicroelectronics

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