W541L250 Datasheet, PDF (8/10 Pages) Winbond – 4-BIT MICROCONTROLLER

W541L250
DC Characteristics, continued
PARAMETER
SYM. CONDITIONS MIN. TYP.
Port RA, RB Output High
Voltage
VABH IOH = -0.5mA
1.2 1.4
LCD Supply Current
ILCD All Seg. On
-
-
SEG0−SEG23 Sink Current
(work as LCD output pins)
IOL
VOL = 0.05V
VLCD = 0.0V
6
-
SEG0−SEG23 Drive Current
(work as LCD output pins)
IOH
VOH = 4.45V
VLCD = 4.5V
1.5
-
SEG0−SEG23 Output Low
Voltage (work as DC output
pins)
VSL IOL = 150 µA
-
-
SEG0−SEG23 Output High
Voltage (work as DC output
pins)
*VSH IOH = -1.0 µA
1.05
-
Port RE Sink Current
Port RE Source Current
IEL VOL = 0.3V
IEH VOH = 1.2V
2
-
0.35
-
Input Port Pull-up Resistor
RCD Port RC, RD
400 1000
INT Pull-up Resistor
RINT
-
200 1000
RES Pull-up Resistor
RRES
-
200 500
Note : *VSH:Its ability is based on LCD power connected to 0.1 uF capacitor.
MAX.
-
3
-
-
0.15
-
-
-
1500
1500
1500
UNIT
V
µA
µA
µA
V
V
mA
mA
KΩ
KΩ
KΩ
6.3 AC Characteristics
(VDD−VSS = 1.5V, TA = 25° C; unless otherwise specified)
PARAMETER
Op. Frequency
Oscillator Start-up Time
Instruction Cycle Time
Reset Active Width
Interrupt Active Width
SYM.
FOSC
TS
TI
TRAW
TIAW
CONDITIONS
RC type
Crystal type (Option
low-speed type only)
VDD = 1.2 V,
FOSC = 32.768 KHz
One machine cycle
FOSC = 32.768 KHz
FOSC = 32.768 KHz
MIN.
-
TYP. MAX. UNIT
-
1000
- 32.768 -
KHz
-
1
2
S
-
4/FOSC
-
mS
1
-
-
µS
1
-
-
µS
-8-