參數(shù)資料
型號: HT47C20
廠商: Holtek Semiconductor Inc.
元件分類: 8位微控制器
英文描述: 8-BIT MICROCONTROLLER
中文描述: 8位微控制器
文件頁數(shù): 6/56頁
文件大?。?/td> 352K
代理商: HT47C20
Pad No.
Pad Name
I/O
Mask
Option
Function
54
VDD
Positive power supply
55
56
OSC2
OSC1
O
I
Crystal or
RC
OSC1 and OSC2 are connected to an RC network or a
crystal (by mask option) for the internal system clock.
Absolute Maximum Ratings
Supply Voltage.............................. 0.3V to 5.5V
Input Voltage.................V
SS
0.3V to V
DD
+0.3V
Storage Temperature................. 50 C to 125 C
Operating Temperature .............. 40 C to 85 C
Note: These are stress ratings only. Stresses exceeding the range specified under Absolute Maxi-
mum Ratings
may cause substantial damage to the device. Functional operation of this de-
vice at other conditions beyond those listed in the specification is not implied and prolonged
exposure to extreme conditions may affect device reliability.
D.C. Characteristics
Ta=25 C
Symbol
Parameter
Test Conditions
Min. Typ. Max. Unit
V
DD
Conditions
V
DD
Operating Voltage
2.4
3
3.6
V
I
DD1
Operating Current
(Crystal OSC)
3V
No load, f
SYS
=455kHz
A/D Off
0.2
0.4
mA
I
DD2
Operating Current (RC OSC)
3V
No load, f
SYS
=455kHz
A/D Off
0.2
0.4
mA
I
STB1
Standby Current
(32.768kHz Crystal Oscillator
Enable, LCD Off)
3V
No load, system Halt
3
A
I
STB2
Standby Current
(32.768kHz Crystal Oscillator
Enable, LCD On)
3V
No load, system Halt
5
A
I
STB3
Standby Current
(Watchdog RC Oscillator
Enable, LCD Off)
3V
No load, system Halt
7
A
I
STB4
Standby Current
(Watchdog RC Oscillator
Enable, LCD On)
3V
No load, system Halt
10
A
I
STB5
Standby Current
(32.768kHz Crystal and
Watchdog RC Oscillator Both
Disabled, LCD Off)
3V
No load, system Halt
1
A
HT47C20
6
January 18, 2000
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