ST72651AR6 STMicroelectronics, ST72651AR6 Datasheet - Page 91

• Manufacturer Part Number: ST72651AR6
• Description: LOW-POWER, FULL-SPEED USB 8-BIT MCU WITH 32K FLASH, 5K RAM, FLASH CARD I/F, TIMER, PWM, ADC, I2C, SPI
• Manufacturer: STMicroelectronics

Specifications of ST72651AR6

• Dual Supply Management: analog voltage detector on the USB power line to enable smart power switching from USB power to battery (on E suffix devices).
• Programmable Internal Voltage Regulator For Memory Cards (2.8v To 3.5v) Supplying: Flash Card I/O lines (voltage shifting)
• 5 Usb Endpoints: 1 control endpoint
• Dtc (data Transfer Coprocessor): Universal Serial/Parallel communications interface, with software plug-ins for current and future protocol standards

PWM/BRM GENERATOR (Cont’d)
Figure 52. Simplified Filtered Voltage Output Schematic with BRM Added
Figure 53. Graphical Representation of 4-Bit BRM Added Pulse Positions
BRM VALUE
0010 bit1=1
1000 bit3=1
0100 bit2=1
0001 bit0=1
Examples
PWMOUT
VOLTAGE
OUTPUT
0110
1111
VDD
VDD
0V
0V
0
1
2
3
EXTENDED PULSE
4
BRM
5
PWM Pulse Number (0-15)
=
Doc ID 7215 Rev 4
T
CPU
6
7
8
9
=
10
11
12
13
BRM = 0
BRM = 1
14
ST72651AR6
15
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