W79E217A Datasheet, PDF (192/207 Pages) Winbond – 8-bit Microcontroller

Preliminary W79E217A Data Sheet
DC Characteristics, continued
PARAMETER
Output High Voltage
P2.0~P2.5, P5.0~P5.1
(PUSH-PULL Mode)
Output High Voltage P1, P2,
P3, P4, P5, P6, P7 (Quasi-
bidirectional Mode)
Sink current ^[*2] P0, P2, ALE,
/PSEN
Source current ^[*2] P0, P2,
ALE, /PSEN
LCD Supply Current
COM0-COM3 Sink Current
(Used as LCD output)
COM0-COM3 Drive Current
(Used as LCD output)
Seg0-Seg31 Sink Current
(Used as LCD output)
Seg0-Seg31 Drive
Current(Used as LCD
output)
Segment Output low voltage
(Used as DC output)
Segment Output high
voltage (Used as DC output)
SYMBOL
V_OH11
V_OH12
V_OH21
V_OH22
Isk31
Isk32
Isr31
Isr32
I_LCD
I_OL1
I_OH1
I_OL1
I_OL1
I_OH1
I_OH1
V_SL
V_SH
SPECIFICATION
MIN
TYP
MAX
-
3.3
-
-
2.5
-
-
4.1
-
-
2.52
-
3
5
8
2.5
3.5
6
-6
-7.5
-9
-1
-2
-3
-
-
6
0.4
-
-
0.3
-
-
0.9
1.3
-
0.7
1.1
-
-0.8
-1.15
-
-0.5
-0.8
-
-
-
0.4
2.4
-
-
UNIT TEST CONDITIONS
V_DD = 4.5V, I_OH = -20mA
V
V_DD = 2.7V, I_OH =-3.2mA
V_DD = 4.5V, I_OH =-100uA
V
V_DD = 2.7V, I_OH = -30uA
mA V_DD=4.5V, Vs = 0.45V
mA V_DD=2.7V, Vs = 0.45V
mA V_DD=4.5V, Vs = 2.4V
mA V_DD=2.7V, Vs = 2.0V
uA All Seg ON
uA ^{VOL = 0.4V}
V_LCD =3.0V
uA ^{VOH = 2.4V}
V_LCD =3.0V
mA ^{VDD = 5.0V; VOL = 0.4V}
V_DD = 3.0V; V_OL = 0.4V
V_DD = 5.0V; V_OH = 4.4V
mA
V_DD = 3.0V; V_OH = 2.4V
V I_OL = 0.6mA
V I_OH = 3uA
Notes: *1. RST pin is a Schmitt trigger input. RST has internal pull-low resistors about 60kΩ.
*2. P0, P2, ALE and /PSEN are tested in the external access mode.
*3. XTAL1 is a CMOS input.
*4. Pins of P1, P2, P3, P4, P5, P6, P7 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 2.85V.
- 192 -
Publication Release Date: December 14, 2007
Revision A3.0