EM78P803A

8-bit Micro-controller

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* This specification are subject to be changed without notice.

35

2005/8/12

V1.3.3

Energy Detector (DED) (Ta=0

°C ~ 70°C, VDD=3.3V±5%, VSS=0V)

Symbol

Parameter

Condition

Min

Typ

Max

Unit

Operating current for

Energy Detector

Fclk=32.768kHz

Not including MCU

and other parts

15

20

uA

XI. AC Electrical Characteristic

CPU instruction timing (Ta = 25

°C, AVDD=VDD=5V, VSS=0V)

Parameter

Symbol

Condition

Min

Typ

Max

Unit

Input CLK duty cycle

Dclk

45

50

55

%

Instruction cycle time

Tins

32.768kHz

3.582MHz

60

550

us

ns

Device delay hold time

Tdrh

18

ms

TCC input period

Ttcc

Note 1

(Tins+20)/N

ns

Watchdog timer period

Twdt

Ta = 25

°C

16-30%

18

16+30%

ms

Note 1: N= selected prescaler ratio.

Timing characteristic (AVDD=VDD=5V,Ta=+25

°C)

Description

Symbol

Min

Typ

Max

Unit

Oscillator timing characteristic

Crystal start up

32.768kHz

Tosc

400

1500

ms

3.579MHz PLL

5

10

us

Timing characteristic of reset

The minimum width of reset low pulse

Trst

3

uS

The delay between reset and program start

Tdrs

18

mS

DED AC Characteristic (Vdd=+5V,Ta=+25℃)

Characteristic

Min

Typ

Max

Unit

Input sensitivity TIP and RING for DED, DEDTHD bit=0

-45

--

dBm

Input sensitivity TIP and RING for DED, DEDTHD bit=1

-30

--

dBm