W78C32C-24 Winbond, W78C32C-24 Datasheet - Page 6

• Manufacturer Part Number: W78C32C-24
• Description: 8-BIT MICROCONTROLLER
• Manufacturer: Winbond

Reset
The external RESET signal is sampled at S5P2. To take effect, it must be held high for at least two
machine cycles while the oscillator is running.
An internal trigger circuit in the reset line is used to deglitch the reset line when the W78C32C is used
with an external RC network. The reset logic also has a special glitch removal circuit that ignores
glitches on the reset line.
During reset, the ports are initialized to FFH, the stack pointer to 07H, PCON (with the exception of
bit 4) to 00H, and all of the other SFR registers except SBUF to 00H. SBUF is not reset.
ABSOLUTE MAXIMUM RATINGS
Note: Exposure to conditions beyond those listed under Absolute Maximum Ratings may adversely affect the life and reliability of
DC CHARACTERISTICS
V
CC
Operating Voltage
Operating Current
Idle Current
Power Down Current
Input Current
P1, P3
Input Current
RST
Input Leakage Current
P0
Output Low Voltage
P1, P2
Output Low Voltage
ALE, PSEN , P0
DC Power Supply
Input Voltage
Operating Temperature
Storage Temperature
V
(*1)
the device.
SS
PARAMETER
(*2)
= 5V 10%, T
(*1)
PARAMETER
, P3
(*1)
A
= 25 C, F
OSC
I
SYM.
PWDN
V
V
I
V
I
I
I
IDLE
= 20 MHz unless otherwise specified.
I
DD
IN1
IN2
OL1
OL2
LK
DD
SYMBOL
V
No load
V
Idle mode
V
Power-down mode
V
V
V
V
V
V
0V<V
V
I
V
I
CC
OL1
OL2
TEST CONDITIONS
DD
DD
DD
DD
IN
DD
IN
DD
DD
DD
T
V
T
ST
IN
A
= 0V or V
= V
V
= +2 mA
= +4 mA
= 5.5V
= 5.5V
= 5.5V
= 5.5V
= 5.5V
= 5.5V
= 4.5V
= 4.5V
IN
SS
DD
<V
- 6 -
DD
-
DD
V
SS
MIN.
-0.3
-55
0
-0.3
MIN.
-75
-10
4.5
-
-
-
-
-
-
SPECIFICATION
V
CC
MAX.
+150
+7.0
70
+0.3
TYP.
+184
5
-
-
-
-
-
-
-
W78C32C
UNIT
MAX.
+350
0.45
0.45
+10
+10
5.5
V
V
30
50
C
C
6
UNIT
mA
mA
V
V
V
A
A
A
A