EM6819 datasheet(4/154 Pages) EMMICRO

4 / 154 page

EM6819

07 /09 – rev.D

www.emmicroelectronic.com

PC1

Input with pullup/pulldown, IRQ capability, CPU read, timer2 ext clock.

Output of CPU write, selection of internal clock and PWM signals .

Analog: input for ADC and VLD; Output for OPAMP.

PC2

Input with pullup/pulldown, IRQ capability, CPU read.

Output of CPU write, serial data, selection of internal clock and PWM signals .

Analog: input for ADC and OPAMP.

PC3

Input with pullup/pulldown, IRQ capability, CPU read, timer4 ext clock.

Output of CPU write, selection of internal clock and PWM signals .

Analog: input for ADC and OPAMP.

PC4

Input with pullup/pulldown, IRQ capability, CPU read, external clock input

Output of CPU write, selection of internal clock and PWM signals .

Analog: XTAL/Resonator connection

PC5

Input with pullup/pulldown, IRQ capability, CPU read.

Output of CPU write, selection of internal clock and PWM signals .

Analog: input for VLD.

PC6

Input with pullup/pulldown, IRQ capability, CPU read, serial clock, timer1 ext clock

Output of CPU write, serial clock, selection of internal clock and PWM signals .

Analog: input for VLD.

PC7

Input with pullup/pulldown, IRQ capability, CPU read, timer3 ext clock

Output of CPU write, selection of internal clock and PWM signals .

GASP mode entry

GASP mode

VREG

External Capacitance to maintain internal regulated voltage

DC-DC

Coil connection in in case of DC-DC converter

VSUP

Main power supply pin.

Connect to positive terminal of the DC-DC charge holder capacitance

VSUP2

Supply filtering pin in case of DC-DC converter

Connect to positive terminal of the DC-DC charge holder capacitance

Connect to VSUP if DC-DC not used

Only on DC-

DC Versions

VSS

Main GND. This is also the circuit substrate potential.

Connect to negative terminal of the DC-DC charge holder capacitance

VSS2

Ground noise filtering in case of DCDC converter used

Connect to negative terminal of the DC-DC charge holder capacitance

Connect to VSS if DC-DC not used

Only on DC-

DC versions

VSS_

DC-DC

DCDC ground connection

Connect to negative terminal of the DC-DC charge holder capacitance

Connect to VSS if DC-DC not used

Only on DC-

DC versions

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