W78E365 Datasheet, PDF (25/40 Pages) Winbond – 8-BIT MICROCONTROLLER

W78E365
Oscillator Control
W78E365/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.
7. ELECTRICAL CHARACTERISTICS
7.1 Absolute Maximum Ratings
PARAMETER
DC Power Supply
Input Voltage
Operating Temperature
Storage Temperature
SYMBOL
VDD−VSS
VIN
TA
TST
MIN.
-0.3
VSS -0.3
0
-55
MAX.
+6.0
VDD +0.3
70
+150
UNIT
V
V
°C
°C
Note: Exposure to conditions beyond those listed under Absolute Maximum Ratings may adversely affect the life and reliability
of the device.
7.2 D.C. Characteristics
(V_{DD −} V_SS= 5V ±10%, T_A = 25°C, Fosc = 20 MHz, unless otherwise specified.)
SYMBOL
PARAMETER
V_DD
Operating Voltage
SPECIFICATION
MIN. MAX. UNIT
4.5
5.5
V
I_DD
Operating Current
-
20
mA
I_IDLE
Idle Current
-
6
mA
I_PWDN Power Down Current
10
-
µA
Input Current
I_IN1
P1, P2, P3, P4
-50
+10
µA
Input Current
I_IN2
RST
-10 +300 µA
Input Leakage Current
I_LK
P0, EA
-10
+10
µA
I_TL[*4]
Logic 1 to 0 Transition Current
P1, P2, P3, P4
-500
-200
µA
TEST CONDITIONS
RST = 1, P0 = V_DD
No load
V_DD = 5.5V
Idle mode
V_DD = 5.5V
Power-down mode
V_DD = 5.5V
V_DD = 5.5V
V_IN = 0V or V_DD
V_DD = 5.5V
0<V_IN<V_DD
V_DD = 5.5V
0V<V_IN<V_DD
V_DD = 5.5V
V_IN = 2.0V
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Publication Release Date: April 20, 2005
Revision A5