
Preliminary W77LE532
Publication Release Date: May 14, 2003
- 71 - Revision A1
DC Characteristics, continued
SPECIFICATION
PARAMETER
SYM.
MIN.
MAX.
UNIT
TEST CONDITIONS
2.4
V
DD
+0.2
V
V
DD
= 5.5V
Input High Voltage
P0, P1, P2,
P3,
EA
V
IH1
1.4
V
DD
+0.2
V
V
DD
= 2.7V
2.7
V
DD
+0.2
V
V
DD
= 5.5V
Input High Voltage RST
V
IH2
1.5
V
DD
+0.2
V
V
DD
= 2.7V
3.5
V
DD
+0.2
V
V
DD
= 5.5V
Input High Voltage
XTAL1
V
IH3
1.8
V
DD
+0.2
V
V
DD
= 2.7V
6
9
mA
V
DD
= 4.5V, V
OL
= 0.45
Sink current
P1, P3
Isk1
4.5
6.5
mA
V
DD
= 2.7V, V
OL
= 0.4
10
14
mA
V
DD
= 4.5V , V
OL
= 0.45V
Sink current
P0,P2, ALE,
PS
EN
Isk2
6.5
9.5
mA
V
DD
= 2.7V, V
OL
=0.4
-180
-360
uA
V
DD
= 4.5V, V
OL
= 2.4V
Source current
P1, P3
Isr1
-75
-110
uA
V
DD
= 2.7V, V
OL
= 1.4V
-10
-18
mA
V
DD
= 4.5V, V
OL
= 2.4V
Source current
P0,P2, ALE,
PS
EN
Isr2
-3
-8
mA
V
DD
= 2.7V, V
OL
= 1.4V
-
0.45
V
V
DD
= 4.5V, I
OL
= +6 mA
Output Low Voltage
P1, P3
V
OL1
-
0.4
V
V
DD
= 2.7V, I
OL
= +4.5 mA
-
0.45
V
V
DD
= 4.5V, I
OL
= +10 mA
Output Low Voltage
P0, P2, ALE,
PSEN
[*2]
V
OL2
-
0.4
V
V
DD
= 2.7V, I
OL
= +6.5 mA
2.4
-
V
V
DD
= 4.5V, I
OH
= -180
μ
A
Output High Voltage
P1, P3
V
OH1
1.4
-
V
V
DD
= 2.7V, I
OL
= -75 uA
2.4
-
V
V
DD
= 4.5V, I
OH
= -10mA
Output High Voltage
P0, P2, ALE,
PSEN
[*2]
V
OH2
1.4
-
V
V
DD
= 2.7V, I
OL
= -3 mA
Notes:
*1. RST pin is a Schmitt trigger input.
*2. P0, ALE and
PSEN are tested in the external access mode.
*3. XTAL1 is a CMOS input.
*4. Pins of P1, P2, P3 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.