參數(shù)資料
型號: HT9480
廠商: Holtek Semiconductor Inc.
英文描述: Pager Controller
中文描述: 傳呼機(jī)控制器
文件頁數(shù): 6/57頁
文件大?。?/td> 1541K
代理商: HT9480
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
V
DD
Conditions
I
OL
PC0~PC1 Sink Current
3V
V
OL
=0.3V
1.7
3.4
mA
I
OH
PC0~PC1 Source Current
if Pull-High Mask Option
3V
V
OH
=2.7V
–1
–1.9
mA
I
OL
BS1, BS2, BS3, FOUT Sink
Current
3V
V
OL
=0.3V
350
μ
A
I
OH
BS1, BS2, BS3, FOUT
Source Current
3V
V
OH
=2.7V
–0.9
mA
R
PH
Pull-High I/O Port
Resistance
3V
100
200
500
k
A.C. Characteristics
(Ta=25
°
C)
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
V
DD
Conditions
f
SYS1
System Clock (RC OSC)
3V
76.8
256
1000
kHz
f
SYS2
System Clock (Crystal OSC)
3V
76.8
256
1000
kHz
f
SUBSYS
Pager Subsystem Clock
(Crystal OSC)
3V
32.768
76.8
153.6
kHz
f
TIMER
Timer I/P Frequency (TMR1)
3V
0
1000
kHz
t
RE S
E xternal Reset Low Pulse Width
1
μ
s
t
INT
Interrupt Pulse Width
1
μ
s
* Note: t
SYS
=1/f
SYS
HT9480
6
23th Feb ’98
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