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W79E225A_08 Datasheet, PDF (187/203 Pages) Winbond – 8-bit Microcontroller
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Preliminary W79E225A/226A/227A Data Sheet
DC Characteristics, continued
PARAMETER
SYMBOL
SPECIFICATION
MIN
TYP
MAX
UNIT
TEST CONDITIONS
Source Current
P2.0~P2.5, P5.0~P5.1
(PUSH-PULL Mode)
PWM pins
ISR11
ISR12
-22
-31
-42
VDD = 4.5V, VS = 2.4V
mA
-6
-9
-13
VDD = 2.7V, VS = 2.0V
Source Current P1, P2,
P3, P4, P5 (Quasi-
bidirectional mode)
ISR21
ISR22
-200
-50
-300
-82
-430
-115
VDD = 4.5V, VS = 2.4V
uA
VDD =2.7V, VS = 2.0V
Sink Current P2.0~P2.5,
ISK11
18
22
32
VDD = 4.5V, VS = 0.45V
P5.0~P5.1 (PUSH-PULL
mA
Mode)
ISK12
10
15
25
VDD = 2.7V, VS = 0.45V
Sink Current P0,P1,P2,
P3,P4,P5
(Quasi-
bidirectional mode)
ISK21
ISK22
4
5
6
VDD = 4.5V, VS = 0.45V
mA
3
3.5
5
VDD = 2.7V, VS = 0.45V
Output Low Voltage
P2.0~P2.5, P5.0~P5.1
(PUSH-PULL Mode)
VOL11
VOL12
-
0.35
-
-
0.07
-
VDD = 4.5V, IOL = 20 mA
V
VDD = 2.7V, IOL = 3.2 mA
Output Low Voltage P0,
P1, P2, P3, P4, P5
(Quasi-bidirectional
Mode)
VOL21
VOL22
-
0.35
-
-
0.35
-
VDD = 4.5V, IOL = 4.0 mA
V
VDD = 2.7V, IOL = 3.0 mA
Output High Voltage VOH11
-
3.3
-
P2.0~P2.5, P5.0~P5.1
(PUSH-PULL Mode)
VOH12
-
2.5
-
VDD = 4.5V, IOH = -20mA
V
VDD = 2.7V, IOH =-3.2mA
Output High Voltage P1,
P2, P3, P4, P5, P6, P7
(Quasi-bidirectional
Mode)
VOH21
VOH22
-
4.1
-
-
2.52
-
VDD = 4.5V, IOH =-100uA
V
VDD = 2.7V, IOH = -30uA
Sink current [*2] P0, P2,
Isk31
3
5
8
mA VDD=4.5V, Vs = 0.45V
ALE, /PSEN
Isk32
2.5
3.5
6
mA VDD=2.7V, Vs = 0.45V
Source current [*2] P0,
Isr31
-6
-7.5
-9
mA VDD=4.5V, Vs = 2.4V
P2, ALE, /PSEN
Isr32
-1
-2
-3
mA VDD=2.7V, Vs = 2.0V
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 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.
- 187 -
Publication Release Date: April 15, 2008
Revision A4.0
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