參數(shù)資料
型號(hào): SDA5273S
廠(chǎng)商: SIEMENS A G
元件分類(lèi): 圖文
英文描述: ICs for Consumer Electronics MEGATEXT and MEGATEXT PLUS ICs
中文描述: TELETEXT DECODER, PDIP52
封裝: SDIP-52
文件頁(yè)數(shù): 14/30頁(yè)
文件大?。?/td> 142K
代理商: SDA5273S
SDA 5273 / 75
SDA 5273-2 / 75-2
Semiconductor Group
14
1997-09-01
Characteristics
(cont’d)
T
A
= 0 to 70
°
C
Parameter
Symbol
Limit Values
Unit
Test Condition
min.
typ.
max.
Output Timing: HS, VS, TCSQ
Hold and delay time with respect to 24-MHz system clock output:
t
OD
Hold time
t
OH
Hold and delay time with respect to 24-MHz external system clock input:
Delay time
20
ns
see diagram 2
0
ns
see diagram 2
Delay time
not specified
Hold time
not specified
Input Timing: HS, VS
No synchronous input mode specified!
Clock Input/Output (see diagram 1)
Clock Input
H-input voltage
V
IH
V
IL
C
I
I
l
T
c
T
c
t
CR
,
t
CL
t
CH
/t
C
2.0
V
DDD
0.8
V
L-input voltage
– 1.0
V
Input capacitance
7
pF
μ
A
Input leakage current
10
V
IH
= 5.5 V
24-MHz clock
Period
40
35
27-MHz clock
Transition time
3
ns
Symmetry ratio
0.43
0.57
Clock Output
H-output voltage
V
OH
V
OL
C
L
T
C
t
CR
,
t
CF
t
CH
/t
C
2.4
V
DDD
0.4
V
I
OH
= 0.2 mA
I
OL
= 1.6 mA
L-output voltage
0
V
Load capacitance
50
pF
Period
41.7
ns
20.5-MHz crystal
Transition time
5
ns
Symmetry ratio
0.3
0.5
ns
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