參數(shù)資料
型號(hào): DS229
廠商: MAXIM INTEGRATED PRODUCTS INC
元件分類: 通用總線功能
英文描述: Triple RS232 Transmitter/Receiver(三路RS232發(fā)送器/接收器)
中文描述: LINE TRANSCEIVER, PDIP20
封裝: 0.300 INCH, DIP-20
文件頁(yè)數(shù): 5/9頁(yè)
文件大?。?/td> 78K
代理商: DS229
DS229
021998 5/9
DC ELECTRICAL CHARACTERISTICS
(continued)
(0
°
C to 70
C)
RS–232 Receivers
RS–232 Input Voltage Operating
Range
V
IR
±
25
±
30
V
RS–232 Input Threshold Low
V
RTL
0.8
1.3
V
RS–232 Input Threshold High
V
RTH
1.8
2.4
V
RS–232 Input Hysteresis
V
HY
0.2
0.5
1
V
RS–232 Input Resistance
R
IN
3
5
7
k
TTL/CMOS Output Voltage Low
V
ROL
0.2
0.4
V
5
TTL/CMOS Output Voltage High
V
ROH
3.5
V
CC
–0.2
V
6
TTL/CMOS Output Short Circuit
Current (V
OUT
=GND)
I
RSC
–2
–10
mA
TTL/CMOS Output Short Circuit
Current (V
OUT
=V
CC
)
I
RSC
10
30
mA
AC ELECTRICAL CHARACTERISTICS
(0
°
C to 70
°
C)
NOTES
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
Transition Slew Rate
t
SR
6
12
30
V/
μ
s
7
Transmitter Propagation
Delay TTL to RS–232
t
PHLT
t
PLHT
1.3
1.5
3.5
3.5
μ
s
μ
s
Receiver Propagation
Delay RS–232 to TTL
t
PHLR
t
PLHR
0.5
0.6
1
1
μ
s
μ
s
Transmitter + to – Propagation
Delay Difference
t
PHLT
–t
PLHT
300
ns
Receiver + to – Propagation
Delay Difference
t
PHLR
–t
PLHR
100
ns
NOTES:
1. All voltages are referenced to ground.
2. All transmitter outputs loaded with 3 k
to ground.
3. V
CC
= V+ = V– = 0V; V
OUT
=
±
2V .
4. V
OUT
= 0V.
5. I
OUT
= 3.2 mA.
6. I
OUT
= –1.0 mA.
7. C
L
= 50 pF – 2500 pF; RL = 3 k
– 7 k
; V
CC
= 5V; TA = 25
°
C.
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