參數(shù)資料
型號: DS276
廠商: DALLAS SEMICONDUCTOR
元件分類: 通用總線功能
英文描述: Low Power Transceiver Chip(低功率的RS232收發(fā)器芯片)
中文描述: LINE TRANSCEIVER, PDIP8
封裝: 0.300 INCH, DIP-8
文件頁數(shù): 7/11頁
文件大小: 89K
代理商: DS276
DS276
021998 7/11
+ELECTRICAL CHARACTERISTICS–5V OPERATION
PARAMETER
SYMBOL
(t
A
= 0
°
C to 70
°
C)
UNITS
CONDITION
MIN
TYP
MAX
NOTES
Logic Supply Voltage
V
CC
4.5
5
5.5
V
Dynamic Supply Current
I
DRV1
I
CC1
I
DRV1
I
CC1
TX
IN
= V
CC
TX
IN
= V
TX
IN
= GND
TX
IN
= GND
400
40
3.8
40
800
100
5
100
uA
uA
mA
uA
1
1
1
1
Static Supply Current
I
DRV2
I
CC2
I
DRV2
I
CC2
TX
IN
= V
CC
TX
IN
= V
TX
IN
= GND
TX
IN
= GND
1.5
10
3.8
10
10
15
5
20
uA
uA
mA
uA
2
2
2
2
Driver Leakage Current
I
DRV3
V
CC
= 0
V
DRV+
=V
CC
=
4.5V
V
DRV–
=0
0.05
1
uA
3
TX
OUT
Level High
V
OTXH
3.3
3.8
V
4
V
DRV+
=12V,
V
DRV–
=0 to
–12V
10
11
V
5
TX
OUT
Level Low
V
OTXL
V
DRV+
=V
CC
to
12V,
V
DRV–
=–12V
–11
–10
V
4
V
DRV+
=V
CC
V
DRV–
=0
V
DRV+
=12V,
V
DRV–
=–12V
0.2
0.3
V
5
TX
Short Circuit
Current
I
SC
85
mA
6
TX
OUT
Output Slew Rate
Propagation Delay
t
SR
t
PD
V
TL
V
TH
V
HYS
I
OH
30
V/us
5
us
7
RX
IN
Input Threshold Low
RX
IN
Input Threshold High
RX
IN
Threshold Hysteresis
RX
OUT
Output Current
High
0.8
1.2
6
V
1.6
2
2
V
0.5
0.8
V
8
V
CC
=4.5V,
V
OH
=2.4V
V
CC
=4.5V,
V
OL
=0.4V
–1
mA
RX
OUT
Output Current
Low
I
OL
3
mA
NOTES:
1. See test circuit in Figure 9.
2. See test circuit in Figure 10.
3. See test circuit in Figure 11.
4. R
L
= 3K
to ground. Max data rate = 20K bps.
5. R
L
= 3K
to ground. Max data rate = 100K bps.
6. TX
IN
= V
IL
.
7. See test circuit in Figure 12.
8. V
HYS
= V
TH
– V
TL
.
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