W742E Datasheet, PDF (49/60 Pages) Winbond – 4 BIT MICROCONTROLLER

W742E/C811
DC Characteristics, continued
PARAMETER
Port RA, RB, RD Output Low
Voltage
Port RA, RB, RD Output High
Voltage
LCD Supply Current
SEG0−SEG39 Sink Current
(Used as LCD output)
SEG0−SEG39 Drive Current
(Used as LCD output)
Port RE, RF Sink Current
Port RE, RF Source Current
DTMF Output DC Level
DTMF Distortion
DTMF Output Voltage
Pre-emphasis
Pull-up Resistor
RES Pull-up Resistor
SYM.
VABL
CONDITIONS
IOL = 2.0 mA
VABH IOH = 2.0 mA
ILCD
IOL1
IOH1
IEL
IEH
VTDC
THD
VTO
RC
RRES
All Seg. ON
VOL = 0.4V
VLCD = 0.0V
VOH = 2.4V
VLCD = 3.0V
VOL = 0.9V
VOH = 2.4V
RL = 5 KΩ, VDD = 2.5 to 3.8V
RL = 5 KΩ, VDD = 2.5 to 3.8V
Low group, RL = 5 KΩ
Col/Row
Port RC
-
MIN.
TYP.
MAX.
-
-
0.4
2.4
-
-
-
-
20
90
-
-
UNIT
V
V
µA
µA
90
-
-
µA
9
-
-
mA
0.4
1.2
-
mA
1.1
-
2.8
V
-
-30
-23
dB
130
150
170
mVrms
1
2
3
dB
100
350
1000
KΩ
20
100
500
KΩ
8. AC CHARACTERISTICS
PARAMETER
Op. Frequency
Frequency Deviation by
Voltage Drop for RC
Oscillator
Instruction Cycle Time
Reset Active Width
Interrupt Active Width
SYM.
FOSC
∆f
f
CONDITIONS
RC type
Crystal type
f(3V) - f(2.4V)
f(3V)
TI
TRAW
TIAW
One machine cycle
FOSC = 32.768 KHz
FOSC = 32.768 KHz
MIN.
-
-
-
TYP.
2000
3.58
-
MAX.
-
-
10
UNIT
KHz
MHz
%
- 4/FOSC
-
S
1
-
-
µS
1
-
-
µS
- 49 -
Publication Release Date: December 2000
Revision A1