SP524CF Exar Corporation, SP524CF Datasheet

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SP524CF

Manufacturer Part Number
SP524CF
Description
Manufacturer
Exar Corporation
Datasheet
DESCRIPTION
The SP522/524 is a monolithic device that supports three serial interface standards for Wide
Area Network Connectivity. The SP522/524 is ideally suited for multi-protocol designs that are
cost and space sensitive. The SP522/524 is fabricated using a low power BiCMOS process
technology. Two (2) drivers and two (2) receivers for the SP522 can be configured via software
for any of the above interface modes at any time. The SP524 offers two (2) additional drivers
and two (2) additional receivers.
Rev. 9/12/05
■ SP522 — 2 Drivers and 2 Receivers
■ SP524 — 4 Drivers and 4 Receivers
■ Driver and Receiver Tri-State Control
■ Low-Cost WAN Solution
■ Loopback Function for Diagnostics
■ Software Selectable Interface Modes:
-RS-232 (V.28), RS-423 (V.10)
-RS-422 (V.11, X.21), RS-485
R1OUT
R2OUT
ENT1
ENR1
ENT2
ENR2
T2IN
T1IN
DP0
DP1
10
24
6
10µF
8
7
9
4
1
5
3
V
V
®
DD
DD
21
1N5819
DECODER LOGIC
SP522
10µF
14
T1
T2
+5V
R1
R2
V
CC
13
GND
V
SS
22
V
SS
LATCH_EN
T1OUTB
T2OUTA
2
LOOPBCK
T1OUTA
11
12
15
T2OUTB
16
18
17
23
R1INA
20
R1INB
19
R2INA
R2INB
+
10µF
SP522 Multi–Mode Serial Transceivers
Multi-Protocol Transceivers
1
Low-Cost Programmable
R1OUT
R2OUT
R3OUT
R4OUT
ENR1
ENR2
ENT1
ENR3
ENR4
ENT2
ENT3
ENT4
10µF
T1IN
T2IN
T3IN
T4IN
DP0
DP1
24
44
40
43
39
32
36
25
35
27
33
42
38
41
37
31
26
34
SP522/SP524
V
V
DD
GND
DD
1
28
10µF
IN5819
DECODER LOGIC
V
SP524
CC
2
T1
T3
T4
T2
12
+5V
R4
R1
R2
R3
V
GND
© Copyright 2005 Sipex Corporation
CC
14
V
CC
19
GND
V
21
SS
29
V
SS
LATCH_EN
16
T3OUTB
T4OUTA
13
30
LOOPBCK
T1OUTA
T1OUTB
T3OUTA
15
T4OUTB
11
7
23
22
20
T2OUTA
18
T2OUTB
17
R1INB
4
R3INA
R3INB
8
R4INA
9
R4INB
10
R1INA
3
R2INA
5
R2INB
6
+
10µF

Related parts for SP524CF

SP524CF Summary of contents

Page 1

SP522 — 2 Drivers and 2 Receivers ■ SP524 — 4 Drivers and 4 Receivers ■ Driver and Receiver Tri-State Control ■ Low-Cost WAN Solution ■ Loopback Function for Diagnostics ■ Software Selectable Interface Modes: -RS-232 (V.28), RS-423 ...

Page 2

SPECIFICATIONS Typical @ 25°C and nominal supply voltages unless otherwise noted. MIN. LOGIC INPUTS LOGIC OUTPUTS RS422 DRIVER TTL Input Levels Outputs Differential Output +2.0 Open Circuit Voltage,V ...

Page 3

SPECIFICATIONS Typical @ 25°C and nominal supply voltages unless otherwise noted. MIN. RS485 RECEIVER TTL Output Levels 2.4 OH Input Common Mode Range -7.0 High Input Current Low Input Current Receiver Sensitivity Input Impedance Max. Transmission Rate ...

Page 4

SPECIFICATIONS (Continued) Typical @ 25°C and nominal supply voltages unless otherwise noted. MIN. RS-423 DRIVER Power Off Current Transition Time Max. Transmission Rate Propagation Delay t PHL t PLH RS423 RECEIVER TTL Output Levels Input High ...

Page 5

ABSOLUTE MAXIMUM RATINGS 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 ...

Page 6

Figure 1. Driver DC Test Load Circuit DIFF Figure 3. Driver/Receiver Timing Test Circuit +3V DRIVER INPUT 0V A DRIVER ...

Page 7

Figure 6. Driver Enable and Disable Times + V OD2 A – B – V OD2 V OH RECEIVER OUT PHL Figure 7. ...

Page 8

PINOUT (24-PIN SOIC & SSOP) R1OUT LATCH_EN ENR2 ENT2 ENR1 ENT1 DP1 DP0 T2IN T1IN T1OUTA T1OUTB PINOUT (44-PIN QFP) GND 1 VCC 2 R1INA 3 R1INB 4 R2INA 5 R2INB 6 R3INA 7 R3INB 8 R4INA 9 R4INB 10 ...

Page 9

FEATURES The SP522 and SP524 is a highly integrated serial transceiver that offers programmability between interface modes through software con- trol. The SP522 and SP524 offers the hardware interface modes for RS-232 (V.28), RS-422A (V.11), RS-423 (V.10), and RS-485. The ...

Page 10

Unused driver inputs can be left floating; pull– up resistors to +5V is internally connected on the inputs so that the output logic low ("0"). For differential drivers, the non-inverting output will logic high ...

Page 11

V DD 1N5819 10µF 10µ SP522 8 DP0 DECODER LOGIC 7 DP1 10 T1 T1IN 6 ENT1 9 T2 T2IN 4 ENT2 1 R1 R1OUT 5 ENR1 24 R2 R2OUT 3 ENR2 14 ...

Page 12

DRIVER DP0 1 R1INA (18) R1OUT (1) R2INA (20) R2OUT (24) R1INA (3) R1OUT (44) R2INA (5) R2OUT (43) R3INA (7) R3OUT (42) R4INA (9) R4OUT (41) LATCH_EN 1 Figure 10. Mode Diagram — RS232 Rev. 9/12/05 MODE: RS232 DP1 ...

Page 13

DRIVER DP0 1 R1INA (18) R1OUT (1) R2INA (20) R2OUT (24) R1INA (3) R1OUT (44) R2INA (5) R2OUT (43) R3INA (7) R3OUT (42) R4INA (9) R4OUT (41) LATCH_EN 1 Figure 11. Mode Diagram — RS423 Rev. 9/12/05 MODE: RS423 RECEIVER ...

Page 14

DRIVER DP0 0 R1INA (18) R1OUT (1) R1INB (17) R2INA (20) R2OUT (24) R2INB (19) LATCH_EN 1 Figure 12. Mode Diagram — RS422/RS485 for the SP522 Rev. 9/12/05 MODE: RS422/485 DP1 DP0 1 0 SP522 RECEIVERS DRIVERS LOOPBCK ENT 1 ...

Page 15

DRIVER DP0 0 R1INA (3) R1OUT (44) R1INB (4) R2INA (5) R2OUT (43) R2INB (6) R3INA (7) R3OUT (42) R3INB (8) R4INA (9) R4OUT (41) R4INB (10) LATCH_EN 1 Figure 13. Mode Diagram — RS422/RS485 for the SP524 Rev. 9/12/05 ...

Page 16

APPLICATIONS INFORMATION DCE-DTE Applications A serial port can be easily configured for DTE and DCE using multiple SP522 and/or SP524 parts. As shown on Figure 14, the transceivers are half-duplexed to provide convenient DCE- DTE capability. The driver outputs are ...

Page 17

Figure 14. DTE/DCE Application with the SP522 and SP524 Rev. 9/12/05 +5V +10V + + 10µF 10µ –10V 22 DP1 SP522 10µF DP0 + 2 LATCH_EN ...

Page 18

VCC + supply pins 10µF V C1+ C1- C2+ C2 SP504CF Drivers TxD 14 DTR 13 RTS 16 TxC 15 ST ...

Page 19

DIMENSIONS (Inches) Minimum/Maximum 24–PIN (mm) A 0.093/0.104 (2.352/2.649) A1 0.004/0.012 (0.102/0.300) B 0.013/0.020 (0.330/0.508) D 0.599/0.614 (15.20/15.59) E 0.291/0.299 (7.402/7.600) e 0.050 BSC (1.270 BSC) H 0.394/0.419 (10.00/10.64) L 0.016/0.050 (0.406/1.270) Ø 0°/8° (0°/8°) ...

Page 20

DIMENSIONS (Inches) Minimum/Maximum 24–PIN (mm) A 0.068/0.078 (1.73/1.99) A1 0.002/0.008 (0.05/0.21) B 0.010/0.015 (0.25/0.38) D 0.317/0.328 (8.07/8.33) E 0.205/0.212 (5.20/5.38) e 0.0256 BSC (0.65 BSC) H 0.301/0.311 (7.65/7.90) L 0.022/0.037 (0.55/0.95) Ø 0°/8° (0°/8°) ...

Page 21

PACKAGE: 44 Pin MQFP -A- - DIMENSIONS 44–PIN MQFP Minimum/Maximum JEDEC MS-022 (mm) (AB) Variation SYMBOL MIN A A1 0.00 A2 1.80 b 0.29 D 13.20 BSC D1 10.00 ...

Page 22

PACKAGE: 44 Pin LQFP Pin - DIMENSIONS 44–PIN LQFP Minimum/Maximum JEDEC MS-026 (mm) (BCB) Variation MIN NOM SYMBOL A 0.05 A1 1.35 1.40 A2 0.30 0.37 b 12.00 BSC ...

Page 23

... Model SP522CT ........................................................................... 0°C to +70°C .............................................................................................. 24-pin SOIC SP522CA .......................................................................... 0°C to +70°C ............................................................................................. 24-pin SSOP SP524CF ........................................................................... 0°C to +70°C ............................................................................................ 44-pin MQFP SP524CM .......................................................................... 0°C to +70°C ............................................................................................. 44-pin LQFP Please consult the factory for pricing and availability on a Tape-On-Reel option. The SP522 is obsolete. Suggested upgrade is SP322. ...

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