參數(shù)資料
型號： MC145583DW
廠商： MOTOROLA INC
元件分類： 通用總線功能
英文描述： Single Supply RS232C Line Driver/Receiver(?????μ?o?RS232C ?o?????????¨???2???2??????)
中文描述： LINE TRANSCEIVER, PDSO28
封裝： SOG-28
文件頁數(shù)： 4/8頁
文件大?。?/td> 188K
代理商： MC145583DW
MC145583
4
MOTOROLA
DRIVER ELECTRICAL SPECIFICATIONS
(Voltage polarities referenced to GND = 0 V; VCC = + 3.3 V or + 5.0 V
±
10%; C1 – C5 = 1
μ
F; TA = 25
°
C)
Parameter
Symbol
Min
Typ
Max
Unit
Digital Input Voltage
Logic Low
Logic High
DI1 – DI3
VIL
VIH
—
1.8
—
—
0.7
—
V
Digital Input Current
VDI = GND
VDI = VCC
Output High Voltage
Load on All Tx1 – Tx3, RL = 3 k
; CP = 2500 pF, VDI1 – DI3 = Logic Low
No Load
DI1 – DI3
IIL
IIH
VOH
—
—
7
—
—
±
1.0
μ
A
5.0
8.5
7.0
8.8
—
—
V
Output Low Voltage
Load on All Tx1 – Tx3, RL = 3 k
; CP = 2500 pF, VDI1 – DI3 = Logic High
No Load
VOL
—
—
– 7.0
– 8.8
– 5.0
– 8.5
±
5%
—
V
Ripple (Refer to VDD – VSS Value) ***
Off Source Impedance
VRF
Zoff
ISC
—
—
Tx1 – Tx3
300
—
mA
Output Short Circuit Current (VCC = 3.3 V or 5.5 V)
Tx1 – Tx3 Shorted to GND*
Tx1 – Tx3 Shorted to
±
15 V**
*Specification is for one Tx output to be shorted at a time. Should all three driver outputs be shorted simultaneously, device power dissipation
limits could be exceeded.
**This condition could exceed package limitations.
***Ripple VRF would not exceed
±
5% of (VDD – VSS).
—
—
—
—
±
60
±
100
SWITCHING CHARACTERISTICS
(VCC = + 3.3 V or + 5 V,
±
10%; C1 – C5 = 1
μ
F; TA = 25
°
C)
Parameter
Symbol
Min
Typ
Max
Unit
Drivers
Propagation Delay Time
Low–to–High
(RL = 3 k
, CL = 50 pF or 2500 pF)
Tx1 – Tx3
tDPLH
—
0.5
1
μ
s
High–to–Low
(RL = 3 k
, CL = 50 pF or 2500 pF)
tDPHL
—
0.5
1
Output Slew Rate (Source R = 300
)
Loading: RL = 3 – 7 k
; CL = 2500 pF
Tx1 – Tx3
SR
±
4
—
±
30
V/
μ
s
Output Disable Time*
tDAZ
tDZA
—
4
10
μ
s
Output Enable Time*
—
25
50
ms
Receivers
Propagation Delay Time
Low–to–High
DO1 – DO5
tRPLH
—
—
1
μ
s
High–to–Low
tRPHL
tr
tf
tRAZ
tRZA
—
—
1
Output Rise Time
DO1 – DO5
—
120
200
ns
Output Fall Time
DO1 – DO5
—
40
100
ns
Output Disable Time*
—
4
10
μ
s
Output Enable Time*
—
25
50
ms
* Including the charge pump setup time.
TRUTH TABLES
Drivers
DI
STB
Tx
X
H
Z*
H
L
L
L
L
H
* VSS
≤
VTx
≤
VDD
X = Don’t Care
Receivers
Rx
STB
DO
X
H
Z*
H
L
L
L
L
H
* GND
≤
VDO
≤
VCC
X = Don’t Care
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