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PDF HD29051 Data sheet ( Hoja de datos )
| Número de pieza | HD29051 | |
| Descripción | Dual Differential Line Drivers / ReceiversWith 3 State Outputs | |
| Fabricantes | ETC | |
| Logotipo |  |
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HD29051
Dual Differential Line Drivers / ReceiversWith 3 State Outputs
The HD29051 features differential line drivers /
receivers with three state output designed to meet
the spec of EIA RS–422A and 423A. Each device
has two drivers / receivers in a 16 pin package.
The device becomes in enable state when active
high for a driver and active low for a receiver.
Features
Driver
• Built in current restriction when short circuit
• Power up / down protection.
• High output current
IOH = –40 mA
IOL = 40 mA
Receiver
• Input hysteresis (Typ. 50 mV)
• In phase input voltage ±200 mV of input
sensitivity in the range –7 to +12 V.
Pin Arrangement
R1B 1
R1A 2
R1Y 3
D1
Enable
4
R2Y 5
R2A 6
R2B 7
GND 8
16 VCC
15 D1A
14 D1Y
13 D1Z
12 D2
Enable
11 D2Z
10 D2Y
9 D2A
(Top View)
Function Table
Drivers
Input A
Enable Output Y
LH
L
HH
H
XL
Z
Output Z
H
L
Z
Receivers
Differential Input A – B
VID ≥ 0.2 V
–0.2 V < VID < 0.2 V
VID ≤ –0.2 V
H : High level
L : Low level
Z : High impedance
X : Immaterial
? : Irrelevant
Output Y
H
?
L
1 page  
HD29051
Switching Characteristics (Ta = 25°C, VCC = 5 V)
Driver
HD29051
Item
Propagation Delay
Time
Symbol Min Typ
tPLHD
tPHLD
Propagation Delay
Time Difference
Output Enable Time
tSKD *1
tZHD
tZLD
Output Disable Time
tHZD
tLZD
Max
20
20
4
20
35
20
25
Unit
ns
ns
ns
ns
ns
ns
ns
Conditions
CL = 30 pF, RL = 75 Ω to GND
RL = 180 Ω to VCC
CL = 30 pF, RL = 75 Ω to GND
RL = 180 Ω to VCC
CL = 30 pF, RL = 75 Ω to GND
RL = 180 Ω to VCC
CL = 30 pF
RL = 75 Ω to GND
CL = 30 pF
RL = 180 Ω to VCC
CL = 10 pF
RL = 75 Ω to GND
CL = 10 pF
RL = 180Ω to VCC
Receiver
Item
Propagation Delay
Time
Symbol Min Typ
tPLHR
Max
40
Unit
ns
Conditions
CL = 15 pF
tPHLR
40 ns CL = 15 pF
Note: 1. tSKD = tPLHD – tPHLD
5
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet HD29051.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| HD29050 | Dual Differential Line Drivers / ReceiversWith 3 State Outputs | ETC |
| HD29051 | Dual Differential Line Drivers / ReceiversWith 3 State Outputs | ETC |
| HD29051 | Dual Differential Line Drivers / Receivers with 3-state Outputs |  Hitachi Semiconductor |
| HD29051 | Dual Differential Line Drivers/ReceiversWith 3 State Outputs | Hitachi Semiconductor |
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