W78LE812 Datasheet, PDF (16/25 Pages) Winbond – 8-BIT MTP MICROCONTROLLER

W78LE812
DC Characteristics, continued
SYMBOL
PARAMETER
SPECIFICATION
TEST CONDITIONS
MIN. MAX. UNIT
VIL3
Input Low Voltage
XTAL1^[*3]
0
0.8
VDD = 5.5V
0
0.6
V VDD = 2.4V
VIH1
Input High Voltage
3.5 VDD +0.2
V VDD = 5.5V
P1, P2, P3, P4, EA
1.6 VDD +0.2
V VDD = 2.4V
VIH2
Input High Voltage
RST
VIH3
Input High Voltage
XTAL1^[*4]
3.5 VDD +0.2
1.7 VDD +0.2
3.5 VDD +0.2
1.6 VDD +0.2
V VDD = 5.5V
V VDD = 2.4V
V VDD = 5.5V
V VDD = 2.4V
Output
VOL1
Output Low Voltage
-
0.45
V VDD = 4.5V, IOL = +2 mA
P1, P2, P3, P4
-
0.25
V VDD = 2.4V, IOL = +1 mA
VOL2
Output Low Voltage
-
0.45
V VDD = 4.5V, IOL = +4 mA
P0, ALE, PSEN ^[*4]
-
0.25
V VDD = 2.4V, IOL = +2 mA
VOL3
ISK1
Output Low Voltage P3[*6]
-
Sink current
4
P1, P2, P3[5], P4<0:4>
1.8
0.22
12
5.4
V VDD = 4.5V, IOL = +2 mA
mA VDD = 4.5V, VOL = 0.45V
mA VDD = 2.4V, VOL = 0.4V
ISK2
Sink current
10
18
mA VDD = 4.5V, VOL = 0.45V
P0, ALE, PSEN , P4<5:6> ^4.5
9
mA VDD = 2.4V, VOL = 0.4V
ISK3
Sink current P3.4 to P3.7
12
24
mA VDD = 4.5V, VOL = 0.45V
in High-Drive mode
VOH1
VOH2
Output High Voltage
P1, P2, P3, P4
Output High Voltage
P0, ALE, PSEN ^[*4]
2.4
-
1.4
-
2.4
-
1.4
-
V VDD = 4.5V, VOH = -100 µA
V VDD = 2.4V, VOH = -20 µA
V VDD = 4.5V, IOH = -400 µA
V VDD = 2.4V, IOH = -200 µA
ISR1
Source current
-120
-250
µA VDD = 4.5V, VOH = 2.4V
P1, P2, P3, P4<0:4>
-20
-40
µA VDD = 2.4V, VOH = 1.4V
ISR2
Source current
-10
-14
mA VDD = 4.5V, VOH = 2.4V
P0, ALE, PSEN , P4<5:6> ^-1.9
-3.3
mA VDD = 2.4V, VOH = 1.4V
Notes:
*1. RST pin has an internal pull-down.
*2. Pins of P1 and P3 can source a transition current when they are being externally driven from 1 to 0.
*3. RST is a Schmitt trigger input and XTAL1 is a CMOS input.
*4. P0, P2, ALE and PSEN are tested in the external access mode.
*5. P3.4 to P3.7 are in normal mode.
*6. P3(P3.4−P3.7) is used LED driver port by set SFR.
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