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PDF SP504 Data sheet ( Hoja de datos )
| Número de pieza | SP504 | |
| Descripción | WAN Multi-Mode Serial Transceiver | |
| Fabricantes | Exar | |
| Logotipo |  |
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SP504
WAN Multi-Mode Serial Transceiver
• +5V Only
• Seven (7) Drivers and Seven (7) Receivers
• Driver and Receiver Tri-State Control
• Reduced V.35 Termination Network
• Pin Compatible with the SP503
• Software Selectable Interface Modes:
-RS-232E (V.28)
-RS-422A (V.11, X.21)
-RS-449 (V.11 & V.10)
-RS-485
-V.35
-EIA-530 (V.11 & V.10)
-EIA-530A (V.11 & V.10)
RxD 1
RDEC0 2
RDEC1 3
RDEC2 4
RDEC3 5
TTEN 6
SCTEN 7
N/C 8
TDEC3 9
TDEC2 10
TDEC1 11
TDEC0 12
DTR 13
TxD 14
TxC 15
RTS 16
RL 17
V35_STAT 18
DCD 19
RxC 20
-V.36
SP504
60 GND
59 SD(b)
58 TR(a)
57 GND
56 TR(b)
55 VCC
54 RS(a)
53 GND
52 RS(b)
51 LL(a)
50 GND
49 LL(b)
48 VCC
47 RL(a)
46 GND
45 RL(b)
44 ST(b)
43 GND
42 ST(a)
41 VCC
DESCRIPTION
The SP504 is a single chip device that supports eight (8) physical serial interface standards
for Wide Area Network connectivity. The SP504 is fabricated using a low power BiCMOS
process technology, and incorporates an Exar patented (5,306,954) charge pump allowing
+5V only operation. Seven (7) drivers and seven (7) receivers can be configured via soft-
ware for any of the above interface modes at any time. The SP504 is suitable for DTE-DCE
applications. The SP504 requires only one external resistor per V.35 driver for compliant
V.35 Operation.
SWITCHABLE V.35
TERMINATION RESISTOR
NETWORKS
22µF, 16V
22µF, 16V
RxD
RxC
CTS
DSR
DCD
RI
SCT
Vcc
22µF, 16V
C1+
Vdd
C1-
C2+
Programmable Charge Pump
Vss
C2-
22µF, 16V
RxD
TxD
RxC
DTR
S P 5 0 4CTS
RTS
DSR
RL
DCD
LL
RI
ST
TxD
DTR
RTS
RL
LL
ST
SCT
Receiver Decode
TT
Driver Decode
TT
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com
SP504_102_121708
1 page  
SPECIFICATIONS
TA = +25°C and VCC = +5.0V unless otherwise noted.
PARAMETER
MIN.
RS-422 RECEIVER (V.11) (continued)
Propagation Delay tPHL
Propagation Delay tPLH
80
80
DIfferential Receiver Skew
RS-232 DRIVER (V.28)
TTL Input Levels
VIL
VIH
Outputs
HIGH Level Output
LOW Level Output
Open Circuit Voltage
Short Circuit Current
Power Off Impedance
Slew Rate
2.0
+5.0
-15.0
-15
300
Transistion Time
Max. Transmission Rate
Propagation Delay tPHL
Propagation Delay tPLH
RS-232 RECEIVER (V.28)
TTL Output Levels
VOL
VOH
Input
HIGH Threshold
LOW Threshold
Reciever Open Circuit Bias
Input Impedance
Max. Transmission Rate
Propagation Delay tPHL
Propagation Delay tPLH
RS-423 DRIVER (V.10)
TTL Input Levels
VIL
VIH
Outputs
Open Circuit Voltage, VO
120
0.5
0.5
2.4
0.8
3
120
0.05
0.05
2.0
+/-4.0
TYP.
110
110
30
230.4
1
1
1.7
1.2
5
230.4
0.25
0.25
MAX. UNITS CONDITIONS
180 ns TA @ 25°C and VCC = +5V only.
180
ns
Figures 3b and 7; A is inverting and
B is non-inverting.
ns |tPHL - tPLH|; TA @ 25°C
0.8 Volts
Volts
+15.0
-5.0
+15
+/-100
30
1.56
4
4
Volts
Volts
Volts
mA
Ω
V/µs
µs
kbps
µs
µs
RL = 3kΩ, VIN = 0.8V
RL = 3kΩ, VIN = 2.0V
VOUT = 0V
VCC = 0V, VOUT = +/-2.0V
RL = 3kΩ, CL = 50pF; VCC = +5.0V,
TA @ 25°C
RL = 3KΩ, CL = 2500pF; between
+/-3V, TA @ +25°C
RL = 3kΩ, CL = 2500pF
TA @ 25°C and VCC = +5V only.
Measured from 1.5V of VIN to 50%
of VOUT; RL = 3kΩ
0.4 Volts
Volts
3.0
+2.0
7
1
1
Volts
Volts
Volts
kΩ
kbps
µs
µs
VIN = +15V to -15V
TA @ 25°C and VCC = +5V only.
Measured from 50% of VIN to 1.5V
of VOUT
0.8 Volts
Volts
+/-6.0 Volts RL = 3.9kΩ
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com
SP504_102_121708
5 Page 
+3V
RDECx
0V
5V
RECEIVER OUT
VIL
VIH
RECEIVER OUT
0V
1.5V f = 1MHz; tR ≤ 10ns; tF ≤ 10ns
tZL
1.5V Output normally LOW
1.5V
tLZ
0.5V
1.5V Output normally HIGH
tZH
0.5V
tHZ
Figure 8. Receiver Enable and Disable Times
DRIVER INPUT
DRIVER OUTPUT
Figure 9. Typical RS-232 Driver Output Waveform
DRIVER INPUT
DRIVER INPUT
DRIVER OUTPUT
DRIVER OUTPUT
Figure 10. Typical RS-423 Driver Output Waveform
Figure 11. Typical RS-422/RS-485 Driver Output
Waveform
DRIVER INPUT
DRIVER OUTPUT
Figure 12. Typical V.35 Driver Output Waveform
V.35 Driver VOD over Temperature
0.825
0.66
0.495
0.33
0.65
0
-0.65
-0.33
-0.495
-0.66
-0.825
0
VOD+
VOD-
Vcc = 5.0V
0 20 30 40 50 60 70
Temperature (deg C)
Figure 13. V.35 Driver Output VOD VS. Temperature
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com
11
SP504_102_121708
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet SP504.PDF ] | |
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