CT2542 AEROFLEX | Alldatasheet
Document overview
- Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
- PDF pages: 17
Technical content
Features
- Replaces DDC BUS-65142 and BUS-65143
- Functions as a Complete Remote Terminal Unit
- Supports 13 Mode Codes, Illegalization of Codes Allowed
- Transfers Data with DMA Type Handshaking
- Latched Outputs for Command Word and Word Count
- 14 Bit Built-ln-Test Word Register
- 4 Error Flag Outputs
- Advanced Low Power VLSI Technology
- DESC SMD# 5962–89798 Approved General Description The CT2542 contains 2 transceivers, 2 encoder/decoders, bit processors and complete Remote Terminal (RT) logic. The device is constructed using Aeroflex advanced VLSI custom chip and hybrid technology. It functions as a complete dual redundant MIL-STD-1553B RT Unit supporting all 13 mode codes for dual redundant operation. The CT2542 is a pin-for-pin functional equivalent of the DDC BUS-65142/143 and performs parallel data transfers with a DMA type handshake. Multiple error flag outputs and host access to many of the RT Status Word bits are just some of the features that make this part ideal for many RT applications. The unit has an operating range of -55°C to + 125°C. Aeroflex is a MIL-PRF-38534 Certified Manufacturer. Figure 1 – Functional Block Diagram DB0-DB15 A0-A11 ERROR FLAG TIMING FLAGS STATUS BITS I/O INTERFACE MIL-STD-1553B PROTOCOL AND BIT PROCESSING LOGIC ENCODER/ DECODER ENCODER/ DECODER DUAL TRANSCEIVER DATA BUS A DATA BUS B CT 2542 Dual Redundant Remote TerminalFOR MIL-STD-1553B CIRCUIT TECHNOLOGY www.aeroflex.com FI EI DC E R T A E ROFL E X L A BS IN C .ISO9001
Aeroflex Circuit Technology SCDCT2542 REV C 8/11/98 Plainview NY (516) 694-67002 Absolute Maximum Ratings Parameter Limits Units Power Supply Voltage (VEE) +0.3 to -18.0 Volts Power Supply Voltage (VC C L) -0.3 to +7.0 Volts Receiver Differential Input ±20 (40Vp-p) Volts Receiver Input Voltage ±15 Volts Driver Output Current +200 mA Transmission Duty Cycle at TC = 125°C 100 % Operating Case Temperature Range (TC ) -55 to +125 °C Power and Thermal Data (Transceiver and Logic Section) Parameter/Conditions Symbol Min Typ Max Units Power Supply Voltage VEE VCCL -14.25 4.5 -15 -15.75 5.5 V V Power Dissipation of most critical (hottest) device in hybrid during continuous transmission (100% Duty Cycle) PC 350 mW Note 1 Thermal Resistance, most critical device Ø JC 60 °C/W Junction to case temperature rise of most critical device at 100% duty cycle TJC 60 80 °C Total supply current standby mode, or transmitting at less than 1% duty cycle (e.g. 20us of transmission every 2ms or longer interval) ICCL IEE 50 mA mA Note 2 Total supply curren transmitting at 1Mhz into a 35-ohm load at point A in Figure 2 IEE @ 50% IEE @ 100% 175 270 mA Note 3 mA Note 3 Note 1: Decreases linearly to zero at zero duty cycle. Note 2: ICCL limit does not change with mode of operation or duty cycle. Note 3: Decreases linearly to applicable "standby" values at zero duty cycle.
Aeroflex Circuit Technology SCDCT2542 REV C 8/11/98 Plainview NY (516) 694-67003 Electrical Characteristics (Receiver Section) Parameter/Conditions Symbol Min Typ Max Units Differential input impedance DC to 1MHz, Point B, Figure 1 ZIN 2K Ω Differential voltage range VDIR ±20V Vpeak Input common mode voltage range VICR ±10V Vpeak Common mode rejection ratio (from point A, Figure 1) CMMR 40 dB Threshold characteristics (Sine wave at 1MHz) Note: Threshold voltages refer to point A, Figure 1. Vth 0.6 1.2 Vp-p Electrical Characteristics (Transmitter Section) Parameter/Conditions Symbol Min Typ Max Units Differential output level at point B, Figure 1 (145 ohm load) VO 26 35 Vp-p Rise and Fall times (10% to 90% of p-p output) Tr 100 300 nS Output offset at point A in Figure 2 (35-ohm load) 2.5us after mid-bit crossing of parity bit of last word of a 660us message VOS ±20 ±90 mV Vpeak Differential output noise VNOI 10 mV pp
Aeroflex Circuit Technology SCDCT2542 REV C 8/11/98 Plainview NY (516) 694-67004 Logic Characteristics Symbol Parameter Min Typ Max Units Conditions VIH Input "1" 2.4 VDC VIL Input "0" 0.7 VDC IIL Input l -80 -400 µA Note 1A IIH Input l -40 -200 µA Note 1B IIL Input l -20 +20 µA Note 2A IIH Input l -20 +20 µA Note 1B IIL Input l -20 -200 µA Note 5 IIH Input l -40 -400 µA VOH Output "1" 2.7 VDC Note 3A/4A VOL Output "0" 0.4 VDC Note 3B/4B Note 1 For INPUT pins 12,13,14,15, 53, 54, 55. VCC= 5.5V A. @ VIL = 0.4V B. @ VIH = 2.4V Note 2 All remaining INPUTS other than in Note 1. VCC= 5.5V A. @ VIL = 0.4V B. @ VIH = 2.4V Note 3 For OUTPUT pins 4 through 11 and 43 through 50. A. @ VCC = 4.5V and IOH = 2mA B. @ VCC = 4.5V and IOL = 4mA Note 4 All remaining OUTPUTS other than in Note 3. A. @ VCC = 4.5V and IOH = 1mA B. @ VCC = 4.5V and IOL = 2mA Note 5 For INPUT pins 4-11, 43-50. VCC= 5.5V A. @ VIL = 0.4V B. @ VIH = 2.4V
Aeroflex Circuit Technology SCDCT2542 REV C 8/11/98 Plainview NY (516) 694-67005 Figure 1 – Typical Bus Coupling 1.4 :1 55Ω NOTES: 55Ω 2 : 1 DATA TX/RX 55Ω 55Ω 1 : 1.41 Transformer Coupled Stubs Direct Coupled Stubs C B Zoi VC M T = ±10 VPK Zoi A A 1. Point C, Vo = 18 Vpp Minimum DATA TX/RX DATA TX/RX DATA TX/RX 70Ω 35Ω 35Ω 2. Transformer self Impedance ≥ 3KΩ at 1MHz 3. VC M T for transformer coupled stubs VC M D for direct coupled stubs ±V C M D DC to 2MH Z STUB ISOLATION STUB 2542 2542
Aeroflex Circuit Technology SCDCT2542 REV C 8/11/98 Plainview NY (516) 694-67006 Figure 3 – Tim ing D iagram , Transm it O ne W ord N B G T IN C M D D TR EQ D TG R T D TAC K STATEN A 5 (D /C ) D TSTB A 11 (T/R ) R /W A 6 - A 10 A 0 - A 4 D B 0 - D B 4 B U FFEN A TR ISTATE C O M M A N D W O R D ILLC M D STR O B ED IN 1.1µs (STATU S B ITS STR O B ED IN ) (SR Q ,B U SY,SSFLAG ,R D B C ,R TFLAG ) TR ISTATE TR IS TATE W O R D C O U N T STATU S W O R D DATA W O R D FR O M SU B SYSTEM A D D R ESS = 00h A D D R ESS = 01h SU B A D D R ESS PR EVIO U S STATE 4.5µs 1µs 125ns 100ns M A X 2.1µs M A X 4.5 ± 0.5µs 11µs ± .75µs 15.5µs m ax 100ns M A X DATA W O R D FR O M SU B SYSTEM STR O B ED IN D O N ’T C A R E 6.5µs ±0.5µs STATU S SYN C 15 14 13 0 P DATA SYN C 15 14 13 0 P C O M M A N D SYN C 15 14 13 1 0 P
Aeroflex Circuit Technology SCDCT2542 REV C 8/11/98 Plainview NY (516) 694-67007 9.5µs ± 0.75µs N B G T IN C M D D TR EQ D TG R T D TAC K STATEN A 5 (D /C ) D TSTB A 11 (T/R ) R /W A 6 - A 10 A 0 - A 4 D B 0 - D B 15 B U FFEN A TR ISTATE C O M M A N D W O R D ILLC M D STR O B ED IN 1.1µs (STATU S B ITS STR O B ED IN ) (SR Q ,B U SY,SSFLAG ,R D B C ,R TFLAG ) TR ISTATE TR IS TATE W O R D C O U N T STATU S W O R D R EC EIVE DATA W O R D A D D R ESS = 00h A D D R ESS = 01h SU B A D D R ESS PR EVIO U S STATE 1µs 125ns 100ns M A X 2.1µs M A X 4.5 ± 0.5µs 15.5µs m ax 100ns M A X 6.5µs ±0.5µs G B R STATU S W O R D 4.5µs FO R H A N D SH A K ES < 3.5µs D O N ’T C A R E STATU S SYN C 8 7 6 5 0 P 4.5 ± 0.5µs 250ns FO R H A N D SH A K ES > 3.5µs Figure 4 – Tim ing D iagram , R eceive O ne W ord C O M M A N D SYN C 1 0 P D ATA SYN C 15 14 13 12 11 0 P
Aeroflex Circuit Technology SCDCT2542 REV C 8/11/98 Plainview NY (516) 694-67008 N B G T IN C M D D TR EQ D TG R T D TAC K STATEN A 5 (D /C ) D TSTB G B R R /W A 6 - A 10 A 11 (T/R ) D B 0 - D B 15 B U FFEN A TR ISTATE C O M M A N D W O R D W O R D C O U N T A D D R ESS = 00h SU B A D D R ESS PR EVIO U S STATE 125ns 2.1µs M A X 4.5 ± 0.5µs 100ns M A X D O N ’T C A R E TX STATU S SYN C 15 14 13 TR ISTATE TR ISTATE TR ISTATE TX C O M M A N D W O R D 4.0 ± 0.5µs 250ns M A X 1µs A 0 - A 4 TR A N SM ITTIN G R T R ESPO N SE TIM E Figure 5 – Tim ing D iagram , R T to R T R eceive O ne W ord (Part A ) R X C O M M A N D SYN C 15 14 13 1 0 P TX C O M M A N D SYN C 15 14 13 12 11 10 0 P
Aeroflex Circuit Technology SCDCT2542 REV C 8/11/98 Plainview NY (516) 694-67009
0 P DATA SYN C 15 14 13 1 0 P STATU S SYN C 8 7 6 5 1 0 P
A 5 (D /C ) D TSTB G B R R /W A 6 - A 10 A 11 (T/R ) D B 0 - D B 15 B U FFEN A 500ns TYP 4.5 ± 0.5µs 100ns M A X D O N ’T C A R E TR ISTATE 250ns FO R H A N D SH A K ES > 3.5µs A 0 - A 4 TR ISTATE TX R T STATU S R ESPO N SE R EC EIVE DATA W O R D STATU S W O R D A D D R ESS = 01h 4.5 ± 0.5µs 4.5 µs FO R H A N D SH A K ES < 3.5µs 6.5 ± 0.5µs 15.5µs M A X 9.5µs ±0.75µs Figure 5 – Tim ing D iagram , R T to R T R eceive O ne W ord (Part B )
Aeroflex Circuit Technology SCDCT2542 REV C 8/11/98 Plainview NY (516) 694-670010 Figure 6 – TIMING DIAGRAM, COMMAND WORD TRANSFER 125ns 0ns MIN 2.1µs MAX 100ns MAX 375ns 125ns 635ns 1µs 125ns 125ns WHEN T/ R = 0 VALID SUB ADDRESS ADDRESS = 00h OR MODEWORD COUNT TRISTATE TRISTATETRISTATE 75ns MAX 75ns MAX 75ns MAX 75ns MAX COMMAND WORD NOTE: 1. R/W = LOGIC 0 BUFFENA DB0 - DB15 A0 - A4 A6 - A10 A5 (D/C ) A11 (T/R ) INCMD DTSTB DTACK DTGRT DTREQ NBGT
Aeroflex Circuit Technology SCDCT2542 REV C 8/11/98 Plainview NY (516) 694-670013 Figure 11 – Tim ing D iagram , D ata Transfers to Subsystem (N o H andshake) 125ns TYP 125ns M IN 125ns M IN VA LID D O N ’T C A R ED O N ’T C A R E R EC EIVED DATA TR ISTATE A D D R ESS O R M O D E FIELD TR ISTATE D TSTB B U FFEN A D B 0 - D B 15 A 0 - A 4 N O TES: 1. R /W = LO G IC 0 2. D TG R T = D TR EQ = LO G IC 1 3. IN C M D = DAT/C M D A R E LO G IC 1
Aeroflex Circuit Technology SCDCT2542 REV C 8/11/98 Plainview NY (516) 694-670014 A10 DB0 DB1 DB2 DB3 DB4 DB5 DB6 DB7 DB8 DB9 DB10 DB11 DB12 DB13 DB14 DB15 +5V BRO ENA GND ADDRE ADDRD ADDRC ADDRB ADDRA ADDRP RTADERR TXDATA B TXDATA B -VEE B N/C +5V B GND B RXDATA B RXDATA B DTGRT DTACK INCMD HSFAIL R/W DISTR GBR A5(DAT/CMD ) 16MHz IN RTFAIL BUF ENA DTREQ RESET ADBC RTFLAG TP2 TP1 A11(T/R ) BUSY ILLCMD SSFLAG SRQ ME BITEN RXDATA A RXDATA A GND A +5V A N/C -VEE A TXDATA A TXDATA A STATEN NBGT CT2542 Pin Out Description (DDIP) Pin # Function Pin # Function
1 A10 40 NBGT
2 A8 41 A9
3 A6 42 A7
4 DB1 43 DB0
5 DB3 44 DB2
6 DB5 45 DB4
7 DB7 46 DB6
8 DB9 47 DB8
9 DB11 48 DB10
10 DB13 49 DB12
11 DB15 50 DB14
12 BRO ENA 51 +5V
13 ADDRE 52 GND
14 ADDRC 53 ADDRD
15 ADDRA 54 ADDRB
16 RTADERR 55 ADDRP
17 TXDATA B 56 TXDATA B
18 N/C 57 -VEE B
19 GND B 58 +5V B
20 RXDATA B 59 RXDATA B
21 A3 60 A2
22 A1 61 A0
23 DTGRT 62 DTACK
24 INCMD 63 A4
25 HSFAIL 64 R/W
26 DTSTR 65 GBR
27 A5 (DAT/CMD ) 66 16MHz IN
28 RTFAIL 67 BUF ENA
29 DTREQ 68 RESET
30 ADBC 69 RTFLAG
31 TP2 (NC) 70 TP1 (NC)
32 A11 (T/R ) 71 BUSY
33 ILLCMD 72 SSFLAG
34 SRQ 73 ME
35 BITEN 74 RXDATA A
36 RXDATA A 75 GND A
39 TXDATA A 78 STATEN
Figure 12 – DDIP Pin Connection Diagram, CT2542 and Pinout Table
Aeroflex Circuit Technology SCDCT2542 REV C 8/11/98 Plainview NY (516) 694-670015 A10 DB0 DB1 DB2 DB3 DB4 DB5 DB6 DB7 DB8 DB9 DB10 DB11 DB12 DB13 DB14 DB15 +5V BR0 ENA GND ADDRE ADDRD ADDRC ADDRB ADDRA ADDRP RTADERR TXDATA B TXDATA B -VEE B N/C +5V B GND B RXDATA B RXDATA B DTGRT DTACK INCMD HSFAIL R/W DISTR GBR A5(DAT/CMD ) 16MHz IN RTFAIL BUF ENA DTREQ RESET ADBC RTFLAG TP2 TP1 A11(T/R ) BUSY ILLCMD SSFLAG SRQ ME BITEN RXDATA A RXDATA A GND A +5V A N/C -VEE A TXDATA A TXDATA A STATEN NBGT CT2542 Pin Out Description (FP) Pin # Function Pin # Function
1 NC 42 NC
2 A10 43 NBGT
3 A9 44 STATEN
4 A8 45 TXDATA A
5 A7 46 TXDATA A
6 A6 47 VEE A
7 DB0 48 N/C
8 DB1 49 +5V A
9 DB2 50 GND A
10 DB3 51 RXDATA A
11 DB4 52 RXDATA A
12 DB5 53 BITEN
13 DB6 54 ME
14 DB7 55 SRQ
15 DB8 56 SSFLAG
16 DB9 57 ILLCMD
17 DB10 58 BUSY
18 DB11 59 A11 (T/R )
19 DB12 60 TP1
20 DB13 61 TP2
21 DB14 62 RTFLAG
22 DB15 63 ADBC
24 BRO ENA 65 DTREQ
25 GND 66 BU F ENA
26 ADDRE 67 RTFAIL
27 ADDRD 68 16MHz IN
28 ADDRC 69 A5 (DAT/CMD )
29 ADDRB 70 GBR
30 ADDRA 71 DTSTR
31 ADDRP 72 R/W
32 RTADERR 73 HSFAIL
33 TXDATA B 74 A4
34 TXDATA B 75 INCMD
37 N/C 78 A0
38 GND B 79 A1
39 RXDATA B 80 A2
40 RXDATA B 81 A3
41 NC 82 NC
Figure 13 – Flat package Pin Connection Diagram, CT2542 and Pinout Table N/C N/C N/C N/C
Aeroflex Circuit Technology SCDCT2542 REV C 8/11/98 Plainview NY (516) 694-670016 .100 2.100 1.500 TYP Lead 1 & ESD Designator 1.900 1.800 Pin 19 Pin 20 Pin 59 Pin 41 Pin 2 .050 TYP 1.650 1.870 .100 .110Pin 1 .250 .250 MAX Pin 39 Pin 40 Pin 78 Pin 22 Pin 21 Pin 60 .018 DIA TYP .080 .181 MAX .010 ±.002.015 2.000 Pin 42 .095 Pin 41 2.200 MAX Lead 1 & ESD Designator 1.610 MAX Designator MAX .400 MIN .050 Lead Centers
41 Leads/Side
(4 Places) Pin 82 Flat Package Outline Plug In Package Outline .050
Aeroflex Circuit Technology SCDCT2542 REV C 8/11/98 Plainview NY (516) 694-670017 CIRCUIT TECHNOLOGY Aeroflex Circuit Technology
35 South Service Road
Telephone: (516) 694-6700 FAX: (516) 694-6715 Toll Free Inquiries: 1-(800)THE-1553 Specifications subject to change without notice.
Ordering Information
Model Number Screening DESC SMD # Package CT2542 Military Temperature, -55°C to +125°C, Screened to the individual test methods of MIL-STD-883 - Plug in CT2542-FP - Flat Package CT2542-701 Industrial Temperature, -40°C to +85°C, No Burn-in - Plug in CT2542-FP-701 - Flat Package CT2542 - 5962–8979803XA Plug in CT2542 - 5962–8979803XC Plug in CT2542-FP - 5962–8979803YA Flat Package CT2542-FP - 5962–8979803YC Flat Package