W78IRD2 Datasheet, PDF (61/76 Pages) Winbond – 8-BIT MICROCONTROLLER

W78IRD2
D.C. Electrical Characteristics, continued
SYMBOL
PARAMETER
Input Low Voltage
V_IL1
P0, P1, P2, P3, P4, RST, EA
Input Low Voltage
V _IL3
XTAL1^[*4]
Input High Voltage
V_IH1
P0, P1, P2, P3, P4, EA
Input High Voltage
V_IH2
RST
Input High Voltage
V_IH3
XTAL1^[*4]
Output Low Voltage
V_OL
P1, P2, P3, P4, P0, ALE, PSEN
Sink current
Isk1
P1, P3, P4
Sink current
Isk2
P0, P2, ALE, PSEN
Output High Voltage
V_OH
P1, P2, P3, P4, P0, ALE, PSEN
Source current
Isr1
P1, P2, P3, P4
Source current
Isr2
P0, P2, ALE, PSEN
SPECIFICATION
MIN. MAX. UNIT
0
0.8
V
0
0.5
V
0
0.8
V
0
0.4
V
2.4 V_DD +0.2 V
1.8 V_DD +0.2 V
3.5 V_DD +0.2 V
2.0 V_DD +0.2 V
3.5 V_DD +0.2 V
1.8 V_DD +0.2 V
-
0.45
V
-
0.4
V
4
8
mA
2.8
5
mA
12
18
mA
5
9
mA
2.4
-
V
1.4
-
V
-400 -230
µA
-80
-40
µA
-12
-6
mA
-6
-3
mA
TEST CONDITIONS
V_DD = 4.5V
V_DD = 2.7V
V_DD = 4.5V
V_DD = 2.7V
V_DD = 5.5V
V_DD = 2.7V
V_DD = 5.5V
V_DD = 2.7V
V_DD = 5.5V
V_DD = 2.7V
V_DD = 4.5V
V_DD = 2.7V
V_DD = 4.5V, VOL = 0.45V
V_DD = 2.7V, VOL = 0.4V
V_DD = 4.5V, VOL = 0.45V
V_DD = 2.7V, VOL = 0.4V
V_DD = 4.5V
V_DD = 2.7V
V_DD = 4.5V, VOH = 2.4V
V_DD = 2.7V, VOH = 1.4V
V_DD = 4.5V, VOH = 2.4V
V_DD = 2.7V, VOH = 1.4V
Notes:
*1. RST pin is a Schmitt-trigger input.
*2. P0, ALE and PSEN are tested in external-access mode.
*3. XTAL1 is a CMOS input.
*4. Pins of P1, P2, P3 and P4 can source a transition current when they are being externally driven from 1 to 0.
The transition current reaches its maximum value when VIN is approximately 2V.
- 61 -
Publication Release Date: October 2, 2006
Revision A7