ST72F321AR6T6 STMicroelectronics, ST72F321AR6T6 Datasheet - Page 60

• Manufacturer Part Number: ST72F321AR6T6
• Description: MCU 8BIT 32KB FLASH 64TQFP
• Manufacturer: STMicroelectronics
• Series: ST7r

Specifications of ST72F321AR6T6

• Core Processor: ST7
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: I²C, SCI, SPI
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 48
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 3.8 V ~ 5.5 V
• Data Converters: A/D 16x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-TQFP, 64-VQFP
• Processor Series: ST72F3x
• Core: ST7
• Data Bus Width: 8 bit
• Data Ram Size: 1024 B
• Interface Type: I2C, SCI, SPI
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 48
• Number Of Timers: 5
• Operating Supply Voltage: 3.8 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Development Tools By Supplier: ST7F521-IND/USB, ST7232X-EVAL, ST7MDT20-DVP3, ST7MDT20J-EMU3, ST7MDT20M-EMU3, STX-RLINK
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details
• Other names: 497-4842

ST72321Rx ST72321ARx ST72321Jx
10.3 PWM AUTO-RELOAD TIMER (ART)
10.3.1 Introduction
The Pulse Width Modulated Auto-Reload Timer
on-chip peripheral consists of an 8-bit auto reload
counter with compare/capture capabilities and of a
7-bit prescaler clock source.
These resources allow five possible operating
modes:
– Generation of up to 4 independent PWM signals
– Output compare and Time base interrupt
Figure 36. PWM Auto-Reload Timer Block Diagram
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ARTICx
ARTCLK
PWMx
PWMCR
f
f
EXT
CPU
ALTERNATE
FUNCTION
PORT
MUX
ICSx
OEx
f
INPUT
EXCL
INPUT CAPTURE
CONTROL
ICIEx
CC2
REGISTER
PROGRAMMABLE
PRESCALER
ARR
f
COUNTER
POLARITY
CONTROL
CC1
ICFx
OPx
CC0
LOAD
– Up to two input capture functions
– External event detector
– Up to two external interrupt sources
The three first modes can be used together with a
single counter frequency.
The timer can be used to wake up the MCU from
WAIT and HALT modes.
ICCSR
TCE
(CAR REGISTER)
FCRL
8-BIT COUNTER
COMPARE
REGISTER
REGISTER
OCRx
ICRx
ICx INTERRUPT
OIE
OVF
LOAD
LOAD
ARTCSR
REGISTER
OVF INTERRUPT
DCRx