SP507
RxD
61 SD(a)
62 VCC
63 TT(a)
64 GND
65 TT(b)
66 CS(a)
67 CS(b)
68 DM(a)
69 DM(b)
70 RD(a)
71 RD(b)
72 GND
73 VCC
74 VCC
75 GND
76 SCT(a)
77 SCT(b)
78 DSR
79 DTE_ST
1
60 GND
RTEN 2
59 SD(b)
RREN 3
58 TR(a)
TMEN 4
57 GND
LLEN
56 TR(b)
5
TTEN 6
55 VCC
SCTEN 7
54 RS(a)
LATCH
8
53 GND
TERM_OFF
9
52 RS(b)
SP507
M2 10
M1 11
51 LL(a)
50 GND
M0 12
49 LL(b)
TM(b) 40
TM(a) 39
RT(b) 38
RT(a) 37
RR(b) 36
RR(a) 35
2
GND 34
41 VCC
VCC 33
42 ST(a)
RxC 20
VSS 32
43 GND
DCD 19
GND 29
C1– 30
C – 31
44 ST(b)
RLEN 18
VDD 27
C2+ 28
45 RL(b)
RL 17
VCC 25
C1+ 26
46 GND
RTS 16
LL 24
47 RL(a)
TxCE 15
STEN 23
48 VCC
TxD 14
TM 21
DTR 13
DCE_ST 22
■ Interface Modes Supported:
✓ RS-232 (V.28)
✓ X.21/RS-422 (V.11)
✓ EIA-530 (V.10 & V.11) ✓ EIA-530A (V.10 & V.11)
✓ RS-449 (V.10 & V.11) ✓ V.35 (V.35 & V.28)
■ Software Selectable Protocols
■ Highest Differential Transmission Rates
available at over 20Mbps
■ +5V Only Operation
■ Seven (7) Drivers and Seven (7) Receivers
■ Driver and Receiver Tri-state Control
■ Internal Transceiver Termination Resistors for
V.11 and V.35 Protocols
■ Improved ESD Tolerance for Analog I/Os
■ Compliant to NET1/2 and TBR2 Physical Layer
Requirements
■ Used in WAN Serial Ports in Routers Switches,
DSU/CSU's and other Access Devices
■ Available in 80-Lead LQFP
80 CTS
5V Single Chip WAN Multi-Mode Serial Transceiver
DESCRIPTION
The SP507 is a monolithic IC that supports seven (7) popular serial interface standards for
DTE/DCE connectivity. The seven (7) drivers and seven (7) receivers transmit and receive
signals at over 20Mbps. The SP507 requires no additional external components for compliant
operation for all seven (7) modes of operation. All necessary termination is integrated within
the SP507 and is switchable when V.35 drivers, V.35 receivers, and V.11 receivers are used.
The SP507 can operate as either a DTE or DCE.
Additional features include a latch enable pin with the driver and receiver address decoder.
Tri-state ability for the driver and receiver outputs is controlled by supplying a 3-bit word into
the address decoder. Four (4) drivers and four (4) receivers in the SP507 include separate
enable pins for added convenience.
V.35
EIA-530
WAN
SP507_100_081208
SP507 Multi–Mode Serial Transceiver
1
© Copyright 2008 Exar Corporation
ABSOLUTE MAXIMUM RATINGS
STORAGE CONSIDERATIONS
These are stress ratings only and functional operation
of the device at these ratings or any other above those
indicated in the operation sections of the specifications
below is not implied. Exposure to absolute maximum
rating conditions for extended periods of time may
affect reliability.
Due to the relatively large package size of the 80-pin
quad flat-pack, storage in a low humidity environment
is preferred. Large high density plastic packages are
moisture sensitive and should be stored in Dry Vapor
Barrier Bags. Prior to usage, the parts should remain
bagged and stored below 40°C and 60%RH. If the parts
are removed from the bag, they should be used within
48 hours or stored in an environment at or below 20%RH.
If the above conditions cannot be followed, the parts
should be baked for four hours at 125°C in order
remove moisture prior to soldering. Exar ships the 80pin LQFP in Dry Vapor Barrier Bags with a humidity
indicator card and desiccant pack. The humidity indicator
should be below 30%RH.
VCC............................................................................+7V
Input Voltages:
Logic...............................-0.3V to (VCC+0.5V)
Drivers............................-0.3V to (VCC+0.5V)
Receivers........................................±15.5V
Output Voltages:
Logic................................-0.3V to (VCC+0.5V)
Drivers................................................±15V
Receivers........................-0.3V to (VCC+0.5V)
Storage Temperature..........................-65°C to +150°C
Power Dissipation per package
80-pin QFP (derate 18.3mW/°C above +70°C)..1500mW
SPECIFICATIONS
TA = +25°C and VCC = +4.75V to +5.25V unless otherwise noted.
MIN.
TYP.
MAX.
UNITS
CONDITIONS
0.8
Volts
Volts
0.4
Volts
Volts
IOUT= –3.2mA
IOUT= 1.0mA
±15
±15
±100
Volts
Volts
mA
Ω
per Figure 1
per Figure 2
per Figure 4
per Figure 5
VCC = +5V for AC parameters
1.5
30
µs
V/µs
per Figure 6; +3V to -3V
per Figure 3
5
5
µs
µs
kbps
7
+2.0
3.0
kΩ
Volts
Volts
Volts
LOGIC INPUTS
VIL
VIH
2.0
LOGIC OUTPUTS
VOL
VOH
2.4
V.28 DRIVER
DC Parameters
Outputs
Open Circuit Voltage
Loaded Voltage
Short-Circuit Current
Power-Off Impedance
AC Parameters
Outputs
Transition Time
Instantaneous Slew Rate
Propagation Delay
tPHL
tPLH
Max.Transmission Rate
±5.0
300
0.5
0.5
120
1
1
230
V.28 RECEIVER
DC Parameters
Inputs
Input Impedance
Open-Circuit Bias
HIGH Threshold
LOW Threshold
AC Parameters
Propagation Delay
tPHL
tPLH
SP507_100_081208
3
0.8
1.7
1.2
per Figure 7
per Figure 8
VCC = +5V for AC parameters
50
50
100
100
500
500
ns
ns
SP507 Multi–Mode Serial Transceiver
2
© Copyright 2008 Exar Corporation
SPECIFICATIONS
TA = +25°C and VCC = +4.75V to +5.25V unless otherwise noted.
MIN.
TYP.
MAX.
UNITS
CONDITIONS
V.28 RECEIVER (continued)
AC Parameters (cont.)
Max.Transmission Rate
120
230
kbps
V.10 DRIVER
DC Parameters
Outputs
Open Circuit Voltage
Test-Terminated Voltage
Short-Circuit Current
Power-Off Current
AC Parameters
Outputs
Transition Time
Propagation Delay
tPHL
tPLH
Max.Transmission Rate
±4.0
0.9VOC
50
50
120
±6.0
100
100
±150
±100
Volts
Volts
mA
µA
200
ns
500
500
ns
ns
kbps
+3.25
mA
kΩ
Volts
per Figure 9
per Figure 10
per Figure 11
per Figure 12
VCC = +5V for AC parameters
per Figure 13; 10% to 90%
V.10 RECEIVER
DC Parameters
Inputs
Input Current
Input Impedance
Sensitivity
AC Parameters
Propagation Delay
tPHL
tPLH
Max.Transmission Rate
–3.25
4
±0.3
per Figures 14 and 15
VCC = +5V for AC parameters
50
50
120
120
120
250
250
ns
ns
kbps
±5.0
0.67VOC
±0.4
+3.0
±150
±100
Volts
Volts
Volts
Volts
Volts
mA
µA
20
ns
85
85
20
ns
ns
ns
Mbps
+7
±0.3
Volts
Volts
V.11 DRIVER
DC Parameters
Outputs
Open Circuit Voltage
Test Terminated Voltage
Balance
Offset
Short-Circuit Current
Power-Off Current
AC Parameters
Outputs
Transition Time
Propagation Delay
tPHL
tPLH
Differential Skew
Max.Transmission Rate
±2.0
0.5VOC
50
50
65
65
10
20
per Figure 16
per Figure 17
per Figure 17
per Figure 17
per Figure 18
per Figure 19
VCC = +5V for AC parameters
per Figures 21 and 36; 10% to 90%
per Figures 33 and 36, CL = 50pF
per Figures 33 and 36, CL = 50pF
per Figures 33 and 36, CL = 50pF
per Figure 33, CL = 50pF
fIN = 10MHz
V.11 RECEIVER
DC Parameters
Inputs
Common Mode Range
Sensitivity
SP507_100_081208
–7
SP507 Multi–Mode Serial Transceiver
3
© Copyright 2008 Exar Corporation
SPECIFICATIONS
TA = +25°C and VCC = +4.75V to +5.25V unless otherwise noted.
MIN.
TYP.
MAX.
UNITS
±3.25
±60.75
mA
mA
kΩ
CONDITIONS
V.11 RECEIVER (continued)
DC Parameters (cont.)
Input Current
Current w/100Ω Termination
Input Impedance
AC Parameters
Propagation Delay
tPHL
tPLH
Differential Skew
Max.Transmission Rate
–3.25
4
per Figure 20 and 22
per Figure 23 and 24
VCC = +5V for AC parameters
30
30
65
65
10
85
85
ns
ns
ns
Mbps
per Figures 33 and 38; CL = 50pF
per Figures 33 and 38; CL = 50pF
per Figure 33; CL = 50pF
per Figure 33; CL = 50pF
fIN = 10MHz
±1.20
±0.66
±0.6
150
165
Volts
Volts
Volts
Ω
Ω
per Figure 16
per Figure 25
per Figure 25
per Figure 27; ZS = V2/V1 x 50Ω
per Figure 28
VCC = +5V for AC parameters
30
40
ns
70
70
7
90
90
10
ns
ns
ns
Mbps
20
V.35 DRIVER
DC Parameters
Outputs
Open Circuit Voltage
Test Terminated Voltage
Offset
Source Impedance
Short-Circuit Impedance
AC Parameters
Outputs
Transition Time
Propagation Delay
tPHL
tPLH
Differential Skew
Max.Transmission Rate
±0.44
50
135
50
50
20
per Figure 29; 10% to 90%
per Figures 33 and 36; CL = 20pF
per Figures 33 and 36; CL = 20pF
per Figures 33 and 36; CL = 20pF
per Figure 33; CL = 20pF
fIN = 10MHz
V.35 RECEIVER
DC Parameters
Inputs
Sensitivity
Source Impedance
Short-Circuit Impedance
AC Parameters
Propagation Delay
tPHL
tPLH
Differential Skew
Max.Transmission Rate
±80
90
135
30
30
110
165
75
75
10
90
90
20
mV
Ω
Ω
ns
ns
ns
Mbps
per Figure 30; ZS = V2/V1 x 50Ω
per Figure 31
VCC = +5V for AC parameters
per Figures 33 and 38; CL = 20pF
per Figures 33 and 38; CL = 20pF
per Figure 33; CL = 20pF
per Figure 33; CL = 20pF
fIN = 10MHz
TRANSCEIVER LEAKAGE CURRENTS
Driver Output 3-State Current
Rcvr Output 3-State Current
SP507_100_081208
500
1
10
µA
µA
SP507 Multi–Mode Serial Transceiver
4
per Figure 32; Drivers disabled
Mx = 111, 0.4V - VO - 2.4V
© Copyright 2008 Exar Corporation
OTHER AC CHARACTERISTICS
TA = +25°C and VCC = +5.0V unless otherwise noted.
PARAMETER
MIN.
TYP.
MAX.
UNITS
CONDITIONS
DRIVER DELAY TIME BETWEEN ACTIVE MODE AND TRI-STATE MODE
RS-232/V.28
tPZL; Tri-state to Output LOW
0.70
5.0
µs
tPZH; Tri-state to Output HIGH
0.40
2.0
µs
tPLZ; Output LOW to Tri-state
0.20
2.0
µs
tPHZ; Output HIGH to Tri-state
0.40
2.0
µs
RS-423/V.10
tPZL; Tri-state to Output LOW
0.15
2.0
µs
tPZH; Tri-state to Output HIGH
0.20
2.0
µs
tPLZ; Output LOW to Tri-state
0.20
2.0
µs
tPHZ; Output HIGH to Tri-state
0.15
2.0
µs
RS-422/V.11
tPZL; Tri-state to Output LOW
2.80
10.0
µs
tPZH; Tri-state to Output HIGH
0.10
2.0
µs
tPLZ; Output LOW to Tri-state
0.10
2.0
µs
tPHZ; Output HIGH to Tri-state
0.10
2.0
µs
V.35
tPZL; Tri-state to Output LOW
2.60
10.0
µs
tPZH; Tri-state to Output HIGH
0.10
2.0
µs
tPLZ; Output LOW to Tri-state
0.10
2.0
µs
tPHZ; Output HIGH to Tri-state
0.15
2.0
µs
CL = 100pF, Fig. 34 & 40; S1
closed
CL = 100pF, Fig. 34 & 40; S2
closed
CL = 100pF, Fig. 34 & 40; S1
closed
CL = 100pF, Fig. 34 & 40; S2
closed
CL = 100pF, Fig. 34 & 40; S1
closed
CL = 100pF, Fig. 34 & 40; S2
closed
CL = 100pF, Fig. 34 & 40; S1
closed
CL = 100pF, Fig. 34 & 40; S2
closed
CL = 100pF, Fig. 34 & 37; S1
closed
CL = 100pF, Fig. 34 & 37; S2
closed
CL = 15pF, Fig. 34 & 37; S1
closed
CL = 15pF, Fig. 34 & 37; S2
closed
CL = 100pF, Fig. 34 & 37; S1
closed
CL = 100pF, Fig. 34 & 37; S2
closed
CL = 15pF, Fig. 34 & 37; S1
closed
CL = 15pF, Fig. 34 & 37; S2
closed
RECEIVER DELAY TIME BETWEEN ACTIVE MODE AND TRI-STATE MODE
RS-232/V.28
tPZL; Tri-state to Output LOW
0.12
2.0
µs
CL = 100pF, Fig. 35 & 38; S1
closed
0.10
2.0
µs
CL = 100pF, Fig. 35 & 38; S2
tPZH; Tri-state to Output HIGH
closed
tPLZ; Output LOW to Tri-state
0.10
2.0
µs
CL = 100pF, Fig. 35 & 38; S1
closed
tPHZ; Output HIGH to Tri-state
0.10
2.0
µs
CL = 100pF, Fig. 35 & 38; S2
closed
RS-423/V.10
tPZL; Tri-state to Output LOW
0.10
2.0
µs
CL = 100pF, Fig. 35 & 38; S1
closed
tPZH; Tri-state to Output HIGH
0.10
2.0
µs
CL = 100pF, Fig. 35 & 38; S2
closed
tPLZ; Output LOW to Tri-state
0.10
2.0
µs
CL = 100pF, Fig. 35 & 38; S1
closed
tPHZ; Output HIGH to Tri-state
0.10
2.0
µs
CL = 100pF, Fig. 35 & 38; S2
closed
SP507_100_081208
SP507 Multi–Mode Serial Transceiver
5
© Copyright 2008 Exar Corporation
OTHER AC CHARACTERISTICS
(Continued)
TA = +25°C and VCC = +5.0V unless otherwise noted.
PARAMETER
RS-422/V.11
tPZL; Tri-state to Output LOW
MIN.
TYP.
MAX.
0.10
2.0
µs
tPZH; Tri-state to Output HIGH
0.10
2.0
µs
tPLZ; Output LOW to Tri-state
0.10
2.0
µs
tPHZ; Output HIGH to Tri-state
0.10
2.0
µs
V.35
tPZL; Tri-state to Output LOW
0.10
2.0
µs
tPZH; Tri-state to Output HIGH
0.10
2.0
µs
tPLZ; Output LOW to Tri-state
0.10
2.0
µs
tPHZ; Output HIGH to Tri-state
0.10
2.0
µs
TRANSCEIVER TO TRANSCEIVER SKEW
V.28 Driver
100
100
UNITS
CONDITIONS
CL = 100pF, Fig. 35 & 39; S1
closed
CL = 100pF, Fig. 35 & 39; S2
closed
CL = 15pF, Fig. 35 & 39; S1
closed
CL = 15pF, Fig. 35 & 39; S2
closed
CL = 100pF, Fig. 35 & 39; S1
closed
CL = 100pF, Fig. 35 & 39; S2
closed
CL = 15pF, Fig. 35 & 39; S1
closed
CL = 15pF, Fig. 35 & 39; S2
closed
(per Figures 33, 36, 38)
ns
[ (tphl )Tx1 – (tphl )Tx6,7 ]
ns
[ (tplh )Tx1 – (tplh )Tx6,7 ]
ns
[ (tphl )Rx1 – (tphl )Rx2,7 ]
ns
[ (tplh )Rx1 – (tphl )Rx2,7 ]
V.28 Receiver
20
20
V.11 Driver
2
2
3
ns
ns
ns
[ (tphl )Tx1 – (tphl )Tx6,7 ]
[ (tplh )Tx1 – (tplh )Tx6,7 ]
[ (tphl )Rx1 – (tphl )Rx2,7 ]
3
ns
[ (tplh )Rx1 – (tphl )Rx2,7 ]
5
5
5
5
ns
ns
ns
ns
[ (tphl )Tx2 – (tphl )Tx3,4,5 ]
[ (tplh )Tx2 – (tplh )Tx3,4,5 ]
[ (tphl )Rx2 – (tphl )Rx3,4,5 ]
[ (tplh )Rx2 – (tphl )Rx3,4,5 ]
4
4
6
6
ns
ns
ns
ns
[ (tphl )Tx1 – (tphl )Tx6,7 ]
[ (tplh )Tx1 – (tplh )Tx6,7 ]
[ (tphl )Rx1 – (tphl )Rx2,7 ]
[ (tplh )Rx1 – (tphl )Rx2,7 ]
V.11 Receiver
V.10 Driver
V.10 Receiver
V.35 Driver
V.35 Receiver
POWER REQUIREMENTS
PARAMETER
VCC
ICC
(No Mode Selected)
(V.28/RS-232)
(V.11/X.21)
(EIA-530 & RS-449)
(V.35)
SP507_100_081208
MIN.
TYP.
MAX.
UNITS
4.75
5.00
5.25
Volts
30
65
175
250
100
mA
mA
mA
mA
mA
SP507 Multi–Mode Serial Transceiver
6
CONDITIONS
All ICC values are with VCC = +5V
fIN = 120kbps; Drivers active & loaded.
fIN = 10Mbps; Drivers active & loaded.
fIN = 10Mbps; Drivers active & loaded.
V.35 @ fIN = 10Mbps, V.28 @ 120kbps;
Drivers active & loaded.
© Copyright 2008 Exar Corporation
TEST CIRCUITS
A
A
VOC
VT
3kΩ
C
C
Figure 1. V.28 Driver Output Open Circuit Voltage
Figure 2. V.28 Driver Output Loaded Voltage
A
A
VT
7kΩ
Isc
Oscilloscope
C
C
Scope used for slew rate
measurement.
Figure 3. V.28 Driver Output Slew Rate
Figure 4. V.28 Driver Output Short-Circuit Current
VCC = 0V
A
A
Ix
3kΩ
2500pF
Oscilloscope
±2V
C
C
Figure 6. V.28 Driver Output Rise/Fall Times
Figure 5. V.28 Driver Output Power-Off Impedance
SP507_100_081208
SP507 Multi–Mode Serial Transceiver
7
© Copyright 2008 Exar Corporation
A
A
Iia
±15V
Voc
C
C
Figure 7. V.28 Receiver Input Impedance
Figure 8. V.28 Receiver Input Open Circuit Bias
A
A
3.9kΩ
VOC
Vt
450Ω
C
C
Figure 9. V.10 Driver Output Open-Circuit Voltage
Figure 10. V.10 Driver Output Test Terminated
Voltage
VCC = 0V
A
A
Ix
±0.25V
Isc
C
C
Figure 11. V.10 Driver Output Short-Circuit Current
SP507_100_081208
Figure 12. V.10 Driver Output Power-Off Current
SP507 Multi–Mode Serial Transceiver
8
© Copyright 2008 Exar Corporation
A
A
Iia
±10V
Oscilloscope
450Ω
C
C
Figure 13. V.10 Driver Output Transition Time
Figure 14. V.10 Receiver Input Current
V.10 RECEIVER
A
+3.25mA
VOCA
3.9kΩ
–10V
VOC
VOCB
–3V
B
+3V
+10V
Maximum Input Current
versus Voltage
C
–3.25mA
Figure 15. V.10 Receiver Input IV Graph
Figure 16. V.11 and V.35 Driver Output OpenCircuit Voltage
A
Isa
A
50Ω
VT
50Ω
Isb
B
B
V
OS
C
C
Figure 17. V.11 Driver Output Test Terminated
Voltage
SP507_100_081208
Figure 18. V.11 Driver Output Short-Circuit Current
SP507 Multi–Mode Serial Transceiver
9
© Copyright 2008 Exar Corporation
VCC = 0V
A
Iia
A
Ixa
±10V
±0.25V
B
B
C
C
VCC = 0V
A
A
±0.25V
±10V
Ixb
Iib
B
B
C
C
Figure 19. V.11 Driver Output Power-Off Current
Figure 20. V.11 Receiver Input Current
V.11 RECEIVER
+3.25mA
A
50Ω
Oscilloscope
50Ω
B
–10V
50Ω
–3V
VE
+3V
C
+10V
Maximum Input Current
versus Voltage
–3.25mA
Figure 22. V.11 Receiver Input IV Graph
Figure 21. V.11 Driver Output Rise/Fall Time
SP507_100_081208
SP507 Multi–Mode Serial Transceiver
10
© Copyright 2008 Exar Corporation
V.11 RECEIVER
w/ Optional Cable Termination
i [mA] = V [V] / 0.1
(100Ω to 150Ω)
A
Iia
±6V
i [mA] = (V [V] – 3) / 4.0
100Ω to
150Ω
–6V
–3V
+3V
B
+6V
i [mA] = (V [V] – 3) / 4.0
C
Maximum Input Current
versus Voltage
i [mA] = V [V] / 0.1
Figure 24. V.11 Receiver Input Graph w/
Termination
A
A
±6V
50Ω
100Ω to
150Ω
VT
50Ω
Iib
B
VOS
B
C
C
Figure 25. V.35 Driver Output Test Terminated
Voltage
Figure 23. V.11 Receiver Input Current w/
Termination
V1
A
A
50Ω
24kHz, 550mVp-p
Sine Wave
50Ω
V2
VT
50Ω
B
VOS
B
C
C
Figure 26. V.35 Driver Output Offset Voltage
SP507_100_081208
Figure 27. V.35 Driver Output Source Impedance
SP507 Multi–Mode Serial Transceiver
11
© Copyright 2008 Exar Corporation
A
A
50Ω
Oscilloscope
50Ω
ISC
B
B
50Ω
±2V
C
C
Figure 29. V.35 Driver Output Rise/Fall Time
Figure 28. V.35 Driver Output Short-Circuit
Impedance
A
V1
A
50Ω
24kHz, 550mVp-p
Sine Wave
V2
Isc
B
B
±2V
C
C
Figure 30. V.35 Receiver Input Source Impedance
Figure 31. V.35 Receiver Input Short-Circuit
Impedance
Any one of the three conditions for disabling the driver
VCC = 0V
1
1
1
M2
M1
M0
CL1
A
VCC
IZSC
TIN
±15V
A
A
B
B
ROUT
CL2
15pF
fIN (50% Duty Cycle, 2.5VP-P)
Logic “0”
B
Figure 33. Driver/Receiver Timing Test Circuit
Figure 32. Driver Output Leakage Current Test
SP507_100_081208
SP507 Multi–Mode Serial Transceiver
12
© Copyright 2008 Exar Corporation
Output
Under
Test
VCC
S1
500Ω
VCC
S1
CRL
CL
1KΩ
Test Point
Receiver
Output
1KΩ
S2
S2
Figure 35. Receiver Timing Test Load Circuit
Figure 34. Driver Timing Test Load Circuit
f ≥ 10MHz; tR ≤ 10 ns; tF ≤ 10ns
DRIVER
INPUT
DRIVER
OUTPUT
+3V
1.5V
1.5V
0V
A
tPLH
tPHL
VO 1/2VO
1/2VO
B
tDPLH
DIFFERENTIAL VO+
OUTPUT 0V
VA – V B VO–
tDPHL
tR
tF
tSKEW = | tDPLH - tDPHL |
Figure 36. Driver Propagation Delays
+3V
1.5V
Mx or Tx_Enable
0V
1.5V
tZL
tLZ
5V
2.3V
A, B
VOL
VOH
A, B
2.3V
0V
Output normally LOW
0.5V
Output normally HIGH
0.5V
tZH
tHZ
Figure 37. Driver Enable and Disable Times
f > 10MHz; t R < 10ns; t F < 10ns
V0D2 +
0V
A– B
0V
INPUT
V0D2 –
OUTPUT
VOH
(VOH - VOL)/2
(VOH - VOL)/2
RECEIVER OUT
VOL
t PLH
t PHL
tSKEW = │tPHL - tPLH │
Figure 38. Receiver Propagation Delays
SP507_100_081208
SP507 Multi–Mode Serial Transceiver
13
© Copyright 2008 Exar Corporation
+3V
1.5V
Mx or RCVR Enable
0V
1.5V
tZL
tLZ
5V
50%
RECEIVER OUT
VIL
Output normally LOW
0.5V
Output normally HIGH
0.5V
VIH
RECEIVER OUT
50%
0V
tZH
tHZ
Figure 39. Receiver Enable and Disable Times
+3V
1.5V
1.5V
Mx or Tx_Enable
0V
tLZ
tZL
0V
TOUT
VOL
Output LOW
0.5V
0.5V
+3V
1.5V
1.5V
Mx or Tx_Enable
0V
tZH
VOH
TOUT
0V
tHZ
Output HIGH
0.5V
0.5V
Figure 40. V.28 (RS-232) and V.10 (RS-423) Driver Enable and Disable Times
SP507_100_081208
SP507 Multi–Mode Serial Transceiver
14
© Copyright 2008 Exar Corporation
Figure 41. Typical V.28 Driver Output Waveform
Figure 42. Typical V.10 Driver Output Waveform
Figure 43. Typical V.11 Driver Output Waveforms
Figure 44. Typical V.35 Driver Output Waveforms
SP507_100_081208
SP507 Multi–Mode Serial Transceiver
15
© Copyright 2008 Exar Corporation
Pin 61 — SD(a) — Analog Out — Send data,
inverted; sourced from TxD.
RxD
Pin 63 — TT(a) — Analog Out — Terminal
Timing, inverted; sourced from TxCE.
61 SD(a)
62 VCC
63 TT(a)
64 GND
65 TT(b)
66 CS(a)
67 CS(b)
68 DM(a)
69 DM(b)
70 RD(a)
71 RD(b)
72 GND
73 VCC
74 VCC
75 GND
76 SCT(a)
77 SCT(b)
78 DSR
79 DTE_ST
80 CTS
PINOUT (LQFP)
1
RTEN 2
59 SD(b)
RREN 3
58 TR(a)
TMEN 4
57 GND
LLEN
Pin 65 — TT(b) — Analog Out — Terminal
Timing, non–inverted; sourced from TxCE.
60 GND
5
Pin 70 — RD(a) — Receive Data, analog
input; inverted; source for RxD.
56 TR(b)
TTEN 6
55 VCC
SCTEN 7
54 RS(a)
LATCH
8
53 GND
TERM_OFF
9
52 RS(b)
SP507
M2 10
M1 11
Pin 71 — RD(b) — Receive Data; analog
input; non-inverted; source for RxD.
51 LL(a)
50 GND
M0 12
49 LL(b)
DTR 13
48 VCC
TxD 14
47 RL(a)
TxCE 15
46 GND
Pin 76 — SCT(a) — Serial Clock Transmit;
analog input, inverted; source for DCE_ST.
Pin 77 — SCT(b) — Serial Clock Transmit:
analog input, non–inverted; source for
DCE_ST.
TM(b) 40
TM(a) 39
RT(b) 38
RT(a) 37
RR(b) 36
RR(a) 35
VCC 33
GND 34
2
VSS 32
GND 29
C1– 30
C – 31
41 VCC
VDD 27
C2+ 28
42 ST(a)
RxC 20
VCC 25
C1+ 26
43 GND
DCD 19
LL 24
RLEN 18
TM 21
44 ST(b)
STEN 23
45 RL(b)
RL 17
DCE_ST 22
RTS 16
Pin 79 — DTE_ST — Serial Clock Transmit;
TTL output; sources from SCT(a) and SCT(b)
inputs.
PIN ASSIGNMENTS
CLOCK AND DATA GROUP
Pin 1 — RxD — Receive Data; TTL output,
sourced from RD(a) and RD(b) inputs.
CONTROL LINE GROUP
Pin 13 — DTR — Data Terminal Ready; TTL
input; source for TR(a) and TR(b) outputs.
Pin 14 — TxD — TTL input ; transmit data
source for SD(a) and SD(b) outputs.
Pin 16 — RTS — Ready To Send; TTL input;
source for RS(a) and RS(b) outputs.
Pin 15 — TxCE — Transmit Clock; TTL input
for TT driver outputs.
Pin 17 — RL — Remote Loopback; TTL
input; source for RL(a) and RL(b) outputs.
Pin 20 — RxC — Receive Clock; TTL output
sourced from RT(a) and RT(b) inputs.
Pin 19 — DCD— Data Carrier Detect; TTL
output; sourced from RR(a) and RR(b) inputs.
Pin 22 — DCE_ST — Send Timing; TTL
input; source for ST(a) and ST(b) outputs.
Pin 21 — TM — Ring In; TTL output; sourced
from TM(a) and TM(b) inputs.
Pin 37 — RT(a) — Receive Timing; analog
input, inverted; source for RxC.
Pin 24 — LL — Local Loopback; TTL input;
source for LL(a) and LL(b) outputs.
Pin 38 — RT(b) — Receive Timing; analog
input, non-inverted; source for RxC.
Pin 35 — RR(a)— Receiver Ready; analog
input, inverted; source for DCD.
Pin 42 — ST(a) — Send Timing; analog
output, inverted; sourced from DCE_ST.
Pin 36 — RR(b)— Receiver Ready; analog
input, non-inverted; source for DCD.
Pin 44 — ST(b) — Send Timing; analog
output, non-inverted; sourced from DCE_ST.
Pin 39 — TM(a)— Incoming Call; analog
input, inverted; source for TM.
Pin 59 — SD(b) — Analog Out — Send data,
non-inverted; sourced from TxD.
Pin 40 — TM(b)— Incoming Call; analog
input, non-inverted; source for TM.
SP507_100_081208
SP507 Multi–Mode Serial Transceiver
16
© Copyright 2008 Exar Corporation
Pin 45 — RL(b) — Remote Loopback; analog
output, non-inverted; sourced from RL.
Pin 7 — SCTEN — Enables DTE_ST receiver; active low; TTL input.
Pin 47 — RL(a) — Remote Loopback;
analog output inverted; sourced from RL.
Pin 8 — LATCH — Latch control for decoder
bits (pins 10-12), active low. Logic high input
will make decoder transparent.
Pin 49— LL(b) — Local Loopback; analog
output, non-inverted; sourced from LL.
Pin 9 — TERM_OFF — Disables receiver
termination networks for RxD, RxC, and
DTE_ST; TTL input.
Pin 51 — LL(a) — Local Loopback; analog
output, inverted; sourced from LL.
Pin 52 — RS(b) — Ready To Send; analog
output, non-inverted; sourced from RTS.
Pins 10,11, 12 — M2, M1, M0 — Transmitter
and receiver decode register; configures
transmitter and receiver modes; TTL inputs.
Pin 54 — RS(a) — Ready To Send; analog
output, inverted; sourced from RTS.
Pin 18 — RLEN — Enables RL driver; active
high; TTL input.
Pin 56 — TR(b) — Terminal Ready; analog
output, non-inverted; sourced from DTR.
Pin 23 — STEN — Enables DTE_ST driver;
active high; TTL input.
Pin 58 — TR(a) — Terminal Ready; analog
output, inverted; sourced from DTR.
Pin 66 — CS(a)— Clear To Send; analog
input, inverted; source for CTS.
POWER SUPPLIES
Pins 25, 33, 41, 48, 55, 62, 73, 74 — VCC —
+5V input.
Pin 67 — CS(b)— Clear To Send; analog
input, non-inverted; source for CTS.
Pins 29, 34, 43, 46, 50, 53, 57, 60, 64, 72,
75 — GND — Ground.
Pin 68 — DM(a)— Data Mode; analog input,
inverted; source for DSR.
Pin 27 — VDD +10V Charge Pump Capacitor
— Connects from VDD to VCC. Suggested
capacitor size is 22µF, 16V.
Pin 69 — DM(b)— Data Mode; analog input,
non-inverted; source for DSR
Pin 32 — VSS –10V Charge Pump Capacitor
— Connects from ground to VSS. Suggested
capacitor size is 22µF, 16V.
Pin 78 — DSR— Data Set Ready; TTL
output; sourced from DM(a) and DM(b) inputs.
Pins 26 and 30 — C1+ and C1– — Charge
Pump Capacitor — Connects from C1+ to C1–
.
Suggested capacitor size is 22µF, 16V.
Pin 80 — CTS— Clear To Send; TTL output;
sourced from CS(a) and CS(b) inputs.
Pins 28 and 31 — C2+ and C2– — Charge
Pump Capacitor — Connects from C2+ to C2–
.
Suggested capacitor size is 22µF, 16V.
CONTROL REGISTERS
Pin 2 — RTEN — Enables RxC receiver,
active low; TTL input.
Pin 3 — RREN — Enables DCD receiver,
active low; TTL input.
Pin 4 — TMEN — Enables TM receiver,
active high; TTL input.
Pin 5 — LLEN — Enables LL driver, active
low; TTL input.
Pin 6 — TTEN — Enables TxCE driver,
active high; TTL input.
SP507_100_081208
SP507 Multi–Mode Serial Transceiver
17
© Copyright 2008 Exar Corporation
1N5819
(SEE PINOUT FOR VCC PINS)
22µF
22µF
22µF
+5V
25
10µF
VCC
27
26
30 28
VDD C1+ C1- C2+
Charge Pump
31
C2VSS
32
22µF
14 TxD
RD(a) 70
61 SD(a)
A
RxD 1
B
RD(b) 71
RT (a) 37
59 SD(b)
13 DTR
RxC 20
58 TR(a)
A
56 TR(b)
RTEN 2
RT(b) 38
16 RTS
CS(a) 66
54 RS(a)
CTS 80
52 RS(b)
CS(b) 67
17 RL
DM(a) 68
47 RL(a)
DSR 78
45 RL(b)
DM(b) 69
18
RLEN
RR(a) 35
24
LL
51 LL(a)
DCD 19
49 LL(b)
RREN 3
RR(b) 36
5
LLEN
22 DCE_ST
TM(a) 39
42 ST(a)
TM
B
21
23 STEN
TMEN 4
TM(b) 40
15 TxCE
SCT(a) 76
63 TT(a)
DTE_ST 79
SCTEN
SCT(b)
44 ST(b)
B
A
65 TT(b)
6
7
77
TTEN
M1 11
M0 12
LATCH 8
X
A — Receiver Tri-State circuitry
V.11, & V.35 termination
resistor circuitry (RxD,
RxC & DTE_ST)
.
MODE
M2 10
DECODER LATCH
9 TERM_OFF
SP507
B — Driver Tr-State circuitry &
V.35 Termination circuitry
(TxD, TxCE & DCE_ST)
(SEE PINOUT ASSIGNMENTS FOR GROUND PINS)
Figure 45. Typical Operating Circuit
SP507_100_081208
SP507 Multi–Mode Serial Transceiver
18
© Copyright 2008 Exar Corporation
SP507 Driver Mode Selection
Mode
V.11
EIA-530A
EIA-530
X.21
V.35
RS-449
RS-232
M2 - M0
111
000
001
010
011
100
101
110
SD(a)
3-state
V.11-
V.11-
V.11-
V.11-
V.35-
SD(b)
3-state
V.11+
V.11+
V.11+
V.11+
V.35+
TR(a)
3-state
V.11-
V.10
V.11-
V.11-
V.28
V.11-
V.28
TR(b)
3-state
V.11+
3-state
V.11+
V.11+
3-state
V.11+
3-state
RS(a)
3-state
V.11-
V.11-
V.11-
V.11-
V.28
V.11-
V.28
RS(b)
3-state
V.11+
V.11+
V.11+
V.11+
3-state
V.11+
3-state
RL(a)
3-state
V.11-
V.11-
V.11-
V.11-
V.28
V.11-
V.28
RL(b)
3-state
V.11+
V.11+
V.11+
V.11+
3-state
V.11+
3-state
LL(a)
3-state
V.10
V.10
V.10
V.10
V.28
V.10
V.28
LL(b)
3-state
3-state
3-state
3-state
3-state
3-state
3-state
3-state
ST(a)
3-state
V.11-
V.11-
V.11-
V.11-
V.35-
ST(b)
3-state
V.11+
V.11+
V.11+
V.11+
V.35+
TT(a)
3-state
V.11-
V.11-
V.11-
V.11-
V.35-
TT(b)
3-state
V.11+
V.11+
V.11+
V.11+
V.35+
V.35
V.35
V.35
Pin Label
V.11-
V.28
V.11+
3-state
V.11-
V.28
V.11+
3-state
V.11-
V.28
V.11+
3-state
Table 1. SP507 Driver Decoder Table
SP507 Receiver Mode Selection
V.35
RS-449
RS-232
011
100
101
110
RD(a)
>10kΩ to GND
V.11-
RD(b)
>10kΩ to GND
V.11+
RT(a)
>10kΩ to GND
V.11-
RT(b)
>10kΩ to GND
V.11+
CS(a)
>10kΩ to GND
V.11-
V.11-
V.11-
V.11-
V.28
V.11-
V.28
CS(b)
>10kΩ to GND
V.11+
V.11+
V.11+
V.11+
>10kΩ to GND
V.11+
>10kΩ to GND
DM(a)
V.11V.11+
V.11-
V.11-
V.11+
V.11+
V.35V.35+
V.35V.35+
V.11V.11+
V.11V.11+
120Ω
V.11+
V.11+
V.35
V.11-
V.11-
120Ω
120Ω
V.11+
120Ω
120Ω
V.11-
120Ω
X.21
010
V.35
EIA-530
001
120Ω
EIA-530A
000
120Ω
V.11
111
120Ω
Mode
M2 - M0
120Ω
Pin Label
V.28
>10kΩ to GND
V.28
>10kΩ to GND
V.11-
V.11-
V.28
V.11-
V.28
>10kΩ to GND
V.11+
>10kΩ to GND
V.11+
V.11+
>10kΩ to GND
V.11+
>10kΩ to GND
RR(a)
>10kΩ to GND
V.11-
V.11-
V.11-
V.11-
V.28
V.11-
V.28
RR(b)
>10kΩ to GND
V.11+
V.11+
V.11+
V.11+
>10kΩ to GND
V.11+
>10kΩ to GND
V.10
V.10
V.10
V.28
V.10
V.28
>10kΩ to GND
>10kΩ to GND
>10kΩ to GND
>10kΩ to GND
V.11-
V.35-
>10kΩ to GND
>10kΩ to GND
SCT(a)
>10kΩ to GND
V.11-
SCT(b)
>10kΩ to GND
V.11+
>10kΩ to GND >10kΩ to GND
V.11V.11+
V.11-
120Ω
V.10
120Ω
>10kΩ to GND
120Ω
TM(a)
TM(b)
V.11+
V.11+
V.35+
V.11V.11+
120Ω
V.10
V.35
V.11-
120Ω
>10kΩ to GND
DM(b)
V.28
>10kΩ to GND
Table 2. SP507 Receiver Decoder Table
SP507_100_081208
SP507 Multi–Mode Serial Transceiver
19
© Copyright 2008 Exar Corporation
MODE: V.11
DRIVER/RECEIVER
M2
M1 M0
0
0
0
14 TxD
RD(a) 70
61 SD(a)
120Ω
RxD 1
59 SD(b)
RD(b) 71
RT(a) 37
120Ω
RxC 20
13 DTR
58 TR(a)
56 TR(b)
RTEN 2
RT(b) 38
16 RTS
CS(a) 66
54 RS(a)
CTS 80
52 RS(b)
CS(b) 67
17 RL
DM(a) 68
47 RL(a)
DSR 78
45 RL(b)
DM(b) 69
RR(a) 35
18 RLEN
24 LL
DCD 19
51 LL(a)
RREN 3
RR(b) 36
TM(a) 39
5 LLEN
22 DCE_ST
42 ST(a)
TM 21
44 ST(b)
TMEN 4
23 STEN
SCT(a) 76
63 TT(a)
120Ω
DTE_ST 79
15 TxCE
65 TT(b)
SCTEN 7
SCT(b) 77
6 TTEN
RECEIVERS
DRIVERS
Figure 46. Mode Diagram – V.11
SP507_100_081208
SP507 Multi–Mode Serial Transceiver
20
© Copyright 2008 Exar Corporation
MODE: EIA-530A
DRIVER/RECEIVER
M2
M1 M0
0
0
1
14 TxD
RD(a) 70
61 SD(a)
120Ω
RxD 1
59 SD(b)
RD(b) 71
RT(a) 37
120Ω
RxC 20
13 DTR
58 TR(a)
RTEN 2
RT(b) 38
16 RTS
CS(a) 66
54 RS(a)
CTS 80
52 RS(b)
CS(b) 67
17 RL
DM(a) 68
47 RL(a)
DSR 78
45 RL(b)
18 RLEN
RR(a) 35
24 LL
DCD 19
51 LL(a)
RREN 3
RR(b) 36
TM(a) 39
5 LLEN
22 DCE_ST
42 ST(a)
TM 21
44 ST(b)
TMEN 4
23 STEN
SCT(a) 76
63 TT(a)
120Ω
DTE_ST 79
15 TxCE
65 TT(b)
SCTEN 7
SCT(b) 77
6 TTEN
RECEIVERS
DRIVERS
Figure 47. Mode Diagram – EIA-530A
SP507_100_081208
SP507 Multi–Mode Serial Transceiver
21
© Copyright 2008 Exar Corporation
MODE: EIA-530
DRIVER/RECEIVER
M2
M1 M0
0
1
0
14 TxD
RD(a) 70
61 SD(a)
120Ω
RxD 1
59 SD(b)
RD(b) 71
RT(a) 37
120Ω
RxC 20
13 DTR
58 TR(a)
56 TR(b)
RTEN 2
RT(b) 38
16 RTS
CS(a) 66
54 RS(a)
CTS 80
52 RS(b)
CS(b) 67
17 RL
DM(a) 68
47 RL(a)
DSR 78
45 RL(b)
DM(b) 69
RR(a) 35
18 RLEN
24 LL
DCD 19
51 LL(a)
RREN 3
RR(b) 36
TM(a) 39
5 LLEN
22 DCE_ST
42 ST(a)
TM 21
44 ST(b)
TMEN 4
23 STEN
SCT(a) 76
63 TT(a)
120Ω
DTE_ST 79
15 TxCE
65 TT(b)
SCTEN 7
SCT(b) 77
6 TTEN
RECEIVERS
DRIVERS
Figure 48. Mode Diagram – EIA-530
SP507_100_081208
SP507 Multi–Mode Serial Transceiver
22
© Copyright 2008 Exar Corporation
MODE: X.21
DRIVER/RECEIVER
M2
M1 M0
0
1
1
14 TxD
RD(a) 70
61 SD(a)
120Ω
RxD 1
59 SD(b)
RD(b) 71
RT(a) 37
120Ω
RxC 20
13 DTR
58 TR(a)
56 TR(b)
RTEN 2
RT(b) 38
16 RTS
CS(a) 66
54 RS(a)
CTS 80
52 RS(b)
CS(b) 67
17 RL
DM(a) 68
47 RL(a)
DSR 78
45 RL(b)
DM(b) 69
RR(a) 35
18 RLEN
24 LL
DCD 19
51 LL(a)
RREN 3
RR(b) 36
TM(a) 39
5 LLEN
22 DCE_ST
42 ST(a)
TM 21
44 ST(b)
TMEN 4
23 STEN
SCT(a) 76
63 TT(a)
120Ω
DTE_ST 79
15 TxCE
65 TT(b)
SCTEN 7
SCT(b) 77
6 TTEN
RECEIVERS
DRIVERS
Figure 49. Mode Diagram – X.21
SP507_100_081208
SP507 Multi–Mode Serial Transceiver
23
© Copyright 2008 Exar Corporation
MODE: V.35
DRIVER/RECEIVER
M2
M1 M0
1
0
0
V.35 Ntwk
RxD 1
14 TxD
V.35 Ntwk
RD(a) 70
RD(b) 71
RT(a) 37
59 SD(b)
13 DTR
V.35 Ntwk
RxC 20
61 SD(a)
58 TR(a)
RTEN 2
RT(b) 38
16 RTS
CS(a) 66
CTS 80
54 RS(a)
17 RL
DM(a) 68
47 RL(a)
DSR 78
18 RLEN
RR(a) 35
24 LL
DCD 19
51 LL(a)
RREN 3
5 LLEN
TM(a) 39
V.35 Ntwk
22 DCE_ST
TM 21
TMEN 4
44 ST(b)
23 STEN
SCT(a) 76
15 TxCE
V.35 Ntwk
V.35 Ntwk
DTE_ST 79
42 ST(a)
SCTEN 7
SCT(b) 77
63 TT(a)
65 TT(b)
6 TTEN
RECEIVERS
DRIVERS
Figure 50. Mode Diagram – V.35
SP507_100_081208
SP507 Multi–Mode Serial Transceiver
24
© Copyright 2008 Exar Corporation
MODE: RS-449
DRIVER/RECEIVER
M2
M1 M0
1
0
1
14 TxD
RD(a) 70
61 SD(a)
120Ω
RxD 1
59 SD(b)
RD(b) 71
RT(a) 37
120Ω
RxC 20
13 DTR
58 TR(a)
56 TR(b)
RTEN 2
RT(b) 38
16 RTS
CS(a) 66
54 RS(a)
CTS 80
52 RS(b)
CS(b) 67
17 RL
DM(a) 68
47 RL(a)
DSR 78
45 RL(b)
DM(b) 69
RR(a) 35
18 RLEN
24 LL
DCD 19
51 LL(a)
RREN 3
RR(b) 36
TM(a) 39
5 LLEN
22 DCE_ST
42 ST(a)
TM 21
44 ST(b)
TMEN 4
23 STEN
SCT(a) 76
63 TT(a)
120Ω
DTE_ST 79
15 TxCE
65 TT(b)
SCTEN 7
SCT(b) 77
6 TTEN
RECEIVERS
DRIVERS
Figure 51. Mode Diagram – RS-449
SP507_100_081208
SP507 Multi–Mode Serial Transceiver
25
© Copyright 2008 Exar Corporation
MODE: RS-232 (V.28)
DRIVER/RECEIVER
M2
M1 M0
1
1
0
14 TxD
RD(a) 70
RxD 1
61 SD(a)
RT(a) 37
13 DTR
RxC 20
58 TR(a)
RTEN 2
16 RTS
CS(a) 66
CTS 80
54 RS(a)
17 RL
DM(a) 68
47 RL(a)
DSR 78
18 RLEN
RR(a) 35
24 LL
DCD 19
51 LL(a)
RREN 3
5 LLEN
22 DCE_ST
TM(a) 39
TM 21
42 ST(a)
TMEN 4
23 STEN
SCT(a) 76
15 TxCE
DTE_ST 79
63 TT(a)
SCTEN 7
6 TTEN
RECEIVERS
DRIVERS
Figure 52. Mode Diagram – RS-232
SP507_100_081208
SP507 Multi–Mode Serial Transceiver
26
© Copyright 2008 Exar Corporation
PACKAGE: 80 PIN LQFP
SP507_100_081208
SP507 Multi–Mode Serial Transceiver
27
© Copyright 2008 Exar Corporation
ORDERING INFORMATION
Model
Temperature Range
Package Types
SP507CM-L ....................................................................... 0°C to +70°C ....................................................... 80–pin JEDEC (BE-2 Outline) LQFP
Please consult the factory for pricing and availability on a Tape-On-Reel option.
REVISION HISTORY
DATE
REVISION
1/27/04
A
8/12/08
1.0.0
DESCRIPTION
Implemented tracking revision.
SP507 is no longer available in MQFP package per PCN 07-110206a. In addition, SP507 is now only available in a Pb-Free, RoHS
compliant package. MQFP package drawing has been replaced with
the LQFP package drawing. Ordering information has been updated.
Changed to Exar datasheet format and revision to 1.0.0.
NOTICE
EXAR Corporation reserves the right to make changes to the products contained in this publication in order to
improve design, performance or reliability. EXAR Corporation assumes no responsibility for the use of any
circuits described herein, conveys no license under any patent or other right, and makes no representation that
the circuits are free of patent infringement. Charts and schedules contained here in are only for illustration
purposes and may vary depending upon a user’s specific application. While the information in this publication
has been carefully checked; no responsibility, however, is assumed for inaccuracies.
EXAR Corporation does not recommend the use of any of its products in life support applications where the
failure or malfunction of the product can reasonably be expected to cause failure of the life support system or to
significantly affect its safety or effectiveness. Products are not authorized for use in such applications unless
EXAR Corporation receives, in writing, assurances to its satisfaction that: (a) the risk of injury or damage has
been minimized; (b) the user assumes all such risks; (c) potential liability of EXAR Corporation is adequately
protected under the circumstances.
Copyright 2008 EXAR Corporation
Datasheet August 2008
Send your technical inquiry with details to: uarttechsupport@exar.com
Reproduction, in part or whole, without the prior written consent of EXAR Corporation is prohibited.
SP507_100_081208
SP507 Multi–Mode Serial Transceiver
28
© Copyright 2008 Exar Corporation
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