Instruction Manual

Preliminary W79E8213/W79E8213R Data Sheet
Publication Release Date: July 11, 2008
- 92 - Revision A2
DC ELECTRICAL CHARACTERISTICS, continued
SPECIFICATION
PARAMETER SYM.
MIN. TYP. MAX. UNIT
TEST CONDITIONS
Brownout voltage with
BOV=1
V
BO2.5
2.4 - 2.7 V
TA = -0 to 70°C
Brownout voltage with
BOV=0
V
BO3.8
3.5 - 4 V
TA = -0 to 70°C
- 0.4 0.8 V
DD
= 5.0V, ADCCLK = 4MHz
ADC current consumption I
ADC
- 0.25 0.5
mA
V
DD
= 3.0V, ADCCLK = 4MHz
- 1.2 1.8 V
DD
= 5.0V
Brownout voltage detect
current
I
BOD
- 0.8 1.2
mA
V
DD
= 3.0V
*1. /RST pin is a Schmitt trigger input.
*2. XTAL1 is a CMOS input.
*3. Pins of P0, P1 and P2 can source a transition current when they are being externally driven from 1 to 0. The transition
current reaches its maximum value when Vin approximates to 2V.
*4. Only one of the 8 pins sinks high current at a time.
26.3 The ADC Converter DC ELECTRICAL CHARACTERISTICS
(V
DD
−V
SS
= 3.0~5V, TA = -40~85°C, Fosc = 4MHz, unless otherwise specified.)
SPECIFICATION
PARAMETER SYMBOL
MIN. TYP. MAX. UNIT
TEST
CONDITIONS
Analog input AVin V
SS
-0.2 V
DD
+0.2 V
ADC clock ADCCLK 200KHz - 5MHz Hz
ADC block circuit
input clock
Conversion time t
C
52t
ADC
1
us
Differential non-linearity DNL -1 - +1 LSB
Integral non-linearity INL -2 - +2 LSB
Offset error Ofe -1 - +1 LSB
Gain error Ge -1 - +1 %
Absolute voltage error Ae -3 - +3 LSB
Notes:
1. tADC: The period time of ADC input clock.
26.4 Internal RC Oscillator Accuracy DC ELECTRICAL CHARACTERISTICS
INTERNAL RC OSCILLATOR
10M/20MHZ ACCURACY
DEVICE
MIN. TYP. MAX. UNIT
TEST CONDITIONS
W79E8213R -2 - +2 % +25°C
V
DD
=3.3V
W79E8213 -25 - +25 %
-40°C
~+85
°C
V
DD
=2.4V~ 5.5V