W78E516B-24 Winbond, W78E516B-24 Datasheet - Page 13

• Manufacturer Part Number: W78E516B-24
• Description: 8-BIT MICROCONTROLLER
• Manufacturer: Winbond

Oscillator Control
W78E516B/E516 allow user to diminish the gain of on-chip oscillator amplifier by using programmer
to set the bit B7 of security register. Once B7 is set to 0, a half of gain will be decreased. Care must
be taken if user attempts to diminish the gain of oscillator amplifier, reducing a half of gain may
improperly affect the external crystal operation at high frequency above 24 MHz. The value of R and
C1, C2 may need some adjustment while running at lower gain.
ABSOLUTE MAXIMUM RATINGS
Note: Exposure to conditions beyond those listed under Absolute Maximum Ratings may adversely affect the life and reliability of the
D.C. ELECTRICAL CHARACTERISTICS
(V
Operating Voltage
Operating Current
Idle Current
Power Down Current
Input Current
P1, P2, P3, P4
Input Current
RST
Input Leakage Current
P0, EA
Logic 1 to 0 Transition Current
P1, P2, P3, P4
Input Low Voltage
P0, P1, P2, P3, P4, EA
DC Power Supply
Input Voltage
Operating Temperature
Storage Temperature
DD
-V
device.
SS
= 5V 10%, T
PARAMETER
PARAMETER
A
= 25 C, Fosc = 20 MHz, unless otherwise specified.)
SYMBOL
V
I
SYM.
I
PWDN
I
DD
V
V
TL
IDLE
I
I
I
I
IN1
IN2
T
DD
V
LK
DD
IL1
T
[*4]
ST
IN
A
V
SS
- 13 -
MIN.
-500
4.5
-50
-10
-10
0
-
-
-
SPECIFICATION
V
SS
MIN.
-0.3
-55
MAX.
0
+300
+10
+10
-0.3
5.5
0.8
20
50
6
-
Publication Release Date: February 2000
UNIT
mA
mA
V
V
A
A
A
A
A
V
DD
MAX.
+150
+6.0
70
RST = 1, P0 = V
No load
V
Idle mode
V
Power-down mode
V
V
V
V
0< V
V
0V< V
V
V
V
TEST CONDITIONS
+0.3
DD
DD
DD
DD
IN
DD
DD
DD
IN
DD
W78E516B
= 2.0V
= 0V or V
= 5.5V
= 5.5V
= 5.5V
= 5.5V
= 5.5V
IN
= 5.5V
= 5.5V
= 4.5V
IN
<V
< V
DD
Revision A3
DD
UNIT
DD
V
V
C
C
DD