ST72311R datasheet(144/164 Pages) STMICROELECTRONICS

Part #	ST72311R

Description	8-BIT MCU WITH NESTED INTERRUPTS, EEPROM, ADC, 16-BIT TIMERS, 8-BIT PWM ART, SPI, SCI, CAN INTERFACES

PDF	164 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

Logo

144 / 164 page

ST72311R, ST72511R, ST72512R, ST72532R

144/164

EMC CHARACTERISTICS (Cont’d)

True Open Drain Pin Protection

The centralized protection (4) is not involved in the

discharge of the ESD stresses applied to true

open drain pads due to the fact that a P-Buffer and

diode to VDD are not implemented. An additional

local protection between the pad and VSS (5a &

5b) is implemented to completly absorb the posi-

tive ESD discharge.

Multisupply Configuration

When several types of ground (VSS,VSSA, ...) and

power supply (VDD,VDDA, ...) are available for any

reason (better noise immunity...), the structure

shown in Figure 81 is implemented to protect the

device against ESD.

Figure 79. Positive Stress on a True Open Drain Pad vs. VSS

Figure 80. Negative Stress on a True Open Drain Pad vs. VDD

Figure 81. Multisupply Configuration

VDD

VSS

(1)

(2b)

(4)

OUT

VDD

VSS

(3b)

Main path

Path to avoid

(5a)

(5b)

VDD

VSS

(1)

(2b)

(4)

OUT

VDD

VSS

(3b)

Main path

(3b)

VDDA

VSSA

VDDA

VDD

VSS

BACK TO BACK DIODE

BETWEEN GROUNDS

VSSA

ST72311R Datasheet(PDF) 144 Page - STMicroelectronics

ST72311R Datasheet(HTML) 144 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL