CT 2542 Dual Redundant Remote Terminal FOR MIL-STD-1553B 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 CIRCUIT TECHNOLOGY LE X LA E I NC . ISO 9001 S C F B A E RO www.aeroflex.com RTIFIED 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. ENCODER/ DECODER DATA BUS A DUAL BIT ENCODER/ DECODER DB0-DB15 PROTOCOL AND TRANSCEIVER DATA BUS B MIL-STD-1553B I/O A0-A11 ERROR FLAG INTERFACE PROCESSING LOGIC TIMING FLAGS STATUS BITS Figure 1 – Functional Block Diagram eroflex Circuit Technology – Data Bus Modules For The Future © SCDCT2542 REV C 8/11/98 Absolute Maximum Ratings Parameter Limits Units Power Supply Voltage (VEE) +0.3 to -18.0 Volts Power Supply Voltage (VCCL) -0.3 to +7.0 Volts ±20 (40Vp-p) Volts Receiver Input Voltage ±15 Volts Driver Output Current +200 mA Transmission Duty Cycle at TC = 125°C 100 % -55 to +125 °C Receiver Differential Input Operating Case Temperature Range (TC) Power and Thermal Data (Transceiver and Logic Section) Parameter/Conditions Power Supply Voltage Power Dissipation of most critical (hottest) device in hybrid during continuous transmission (100% Duty Cycle) Symbol Min Typ Max Units VEE -14.25 -15 -15.75 V VCCL 4.5 5 5.5 V PC 350 mW Note 1 Thermal Resistance, most critical device Junction to case temperature rise of most critical device at 100% duty cycle Total supply current standby mode, or transmitting at less than 1% duty cycle (e.g. 20us of transmission every 2ms or longer interval) ØJC 60 TJC 60 IEE @ 50% Total supply curren transmitting at 1Mhz into a 35-ohm load at point A in Figure 2 80 50 ICCL IEE °C/W 50 70 175 °C mA mA Note 2 mA Note 3 IEE @ 100% 270 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 2 SCDCT2542 REV C 8/11/98 Plainview NY (516) 694-6700 Electrical Characteristics (Receiver Section) Parameter/Conditions Symbol Min ZIN 2K Ω Differential voltage range VDIR ±20V Vpeak Input common mode voltage range VICR ±10V Vpeak CMMR 40 dB Vth 0.6 Differential input impedance DC to 1MHz, Point B, Figure 1 Common mode rejection ratio (from point A, Figure 1) Threshold characteristics (Sine wave at 1MHz) Note: Threshold voltages refer to point A, Figure 1. Typ Max Units 1.2 Vp-p Max Units Electrical Characteristics (Transmitter Section) Parameter/Conditions Differential output level at point B, Figure 1 (145 ohm load) Rise and Fall times (10% to 90% of p-p output) 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 Min VO 26 35 Vp-p Tr 100 300 nS ±90 mV Vpeak 10 mV pp VOS Differential output noise Aeroflex Circuit Technology Symbol VNOI 3 Typ ±20 SCDCT2542 REV C 8/11/98 Plainview NY (516) 694-6700 Logic Characteristics Symbol Parameter Min VIH Input "1" 2.4 VIL Input "0" IIL Input l IIH Typ Max Units Conditions VDC 0.7 VDC -80 -400 µA Note 1A 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 IIH Input l -40 -400 µA VOH Output "1" 2.7 VOL Output "0" 0.4 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 4 Note 5 VDC Note 3A/4A VDC Note 3B/4B SCDCT2542 REV C 8/11/98 Plainview NY (516) 694-6700 Transformer Coupled Stubs DATA TX/RX STUB ISOLATION 2:1 1 : 1.41 2542 C 70Ω 55Ω A DATA TX/RX 55Ω Zoi VCMT = ±10 VPK DC to 2MHZ Direct Coupled Stubs STUB DATA TX/RX 2542 55Ω 1.4 :1 B A DATA TX/RX 55Ω Zoi NOTES: 1. Point C, Vo = 18 Vpp Minimum 2. Transformer self Impedance ≥ 3KΩ at 1MHz 3. VCMT for transformer coupled stubs VCMD for direct coupled stubs 35Ω 35Ω + ±VCMD - Figure 1 – Typical Bus Coupling Aeroflex Circuit Technology 5 SCDCT2542 REV C 8/11/98 Plainview NY (516) 694-6700 Aeroflex Circuit Technology 6 SCDCT2542 REV C 8/11/98 Plainview NY (516) 694-6700 COMMAND SYNC 15 14 13 0 4.5µs 1µs 125ns TRISTATE PREVIOUS STATE P WORD COUNT 15.5µs max 14 13 DATA WORD FROM SUBSYSTEM TRISTATE STATUS WORD 100ns MAX 2.1µs MAX 15 1.1µs (STATUS BITS STROBED IN) (SRQ,BUSY,SSFLAG,RDBC,RTFLAG) ADDRESS = 00h SUB ADDRESS 4.5 ± 0.5µs STATUS SYNC 0 DATA SYNC 14 13 DON’T CARE 15 ADDRESS = 01h TRISTATE DATA WORD FROM SUBSYSTEM STROBED IN 100ns MAX P Figure 3 – Timing Diagram, Transmit One Word ILLCMD STROBED IN BUFFENA COMMAND WORD DB0 - DB4 A0 - A4 A6 - A10 R/W A11 (T/R) STATEN A5 (D/C) INCMD DTSTB DTACK DTGRT DTREQ NBGT 1 11µs ± .75µs 0 P 6.5µs ±0.5µs Aeroflex Circuit Technology 7 SCDCT2542 REV C 8/11/98 Plainview NY (516) 694-6700 COMMAND SYNC P A0 - A4 A6 - A10 R/W A11 (T/R) GBR STATEN A5 (D/C) INCMD DTSTB DTACK DTGRT DTREQ NBGT 0 BUFFENA DB0 - DB15 1 15 13 12 WORD COUNT 0 4.5 ± 0.5µs DON’T CARE P 1.1µs (STATUS BITS STROBED IN) (SRQ,BUSY,SSFLAG,RDBC,RTFLAG) TRISTATE STATUS WORD 100ns MAX 2.1µs MAX 11 ADDRESS = 00h SUB ADDRESS 14 100ns MAX 8 RECEIVE DATA WORD 4.5µs FOR HANDSHAKES < 3.5µs 15.5µs max STATUS SYNC Figure 4 – Timing Diagram, Receive One Word ILLCMD STROBED IN COMMAND WORD TRISTATE PREVIOUS STATE 1µs 125ns 4.5 ± 0.5µs DATA SYNC 9.5µs ± 0.75µs 7 5 0 P 6.5µs ±0.5µs STATUS WORD ADDRESS = 01h TRISTATE 250ns FOR HANDSHAKES > 3.5µs 6 Aeroflex Circuit Technology 8 SCDCT2542 REV C 8/11/98 Plainview NY (516) 694-6700 BUFFENA DB0 - DB15 A0 - A4 A6 - A10 R/W A11 (T/R) GBR STATEN A5 (D/C) INCMD DTSTB DTACK DTGRT DTREQ NBGT 15 COMMAND WORD TRISTATE 13 TRISTATE WORD COUNT ADDRESS = 00h SUB ADDRESS 14 1 100ns MAX 2.1µs MAX 0 P TRISTATE TX COMMAND SYNC 14 13 TRISTATE 250ns MAX DON’T CARE 4.0 ± 0.5µs 15 12 10 0 TX COMMAND WORD 11 P TX STATUS SYNC Figure 5 – Timing Diagram, RT to RT Receive One Word (Part A) PREVIOUS STATE 1µs 125ns 4.5 ± 0.5µs RX COMMAND SYNC TRANSMITTING RT RESPONSE TIME 15 14 13 Aeroflex Circuit Technology 9 SCDCT2542 REV C 8/11/98 Plainview NY (516) 694-6700 BUFFENA DB0 - DB15 A0 - A4 A6 - A10 R/W A11 (T/R) GBR STATEN A5 (D/C) INCMD DTSTB DTACK DTGRT DTREQ NBGT P 500ns TYP 15 14 TX RT STATUS RESPONSE DATA SYNC 13 1 0 4.5 ± 0.5µs P 8 RECEIVE DATA WORD TRISTATE 4.5 µs FOR HANDSHAKES < 3.5µs 15.5µs MAX STATUS SYNC 6 5 1 STATUS WORD ADDRESS = 01h TRISTATE 6.5 ± 0.5µs P DON’T CARE 0 250ns FOR HANDSHAKES > 3.5µs 100ns MAX 7 Figure 5 – Timing Diagram, RT to RT Receive One Word (Part B) 4.5 ± 0.5µs 0 9.5µs ±0.75µs NBGT 125ns 0ns MIN DTREQ 2.1µs MAX DTGRT 100ns MAX DTACK 635ns 375ns DTSTB 125ns INCMD 125ns 1µs A5 (D/C) WHEN T/R = 0 125ns VALID A11 (T/R) A6 - A10 SUB ADDRESS WORD COUNT A0 - A4 ADDRESS = 00h OR MODE 75ns MAX DB0 - DB15 TRISTATE 75ns MAX TRISTATE 75ns MAX TRISTATE 75ns MAX COMMAND WORD BUFFENA NOTE: 1. R/W = LOGIC 0 Figure 6 – TIMING DIAGRAM, COMMAND WORD TRANSFER Aeroflex Circuit Technology 10 SCDCT2542 REV C 8/11/98 Plainview NY (516) 694-6700 STATEN Receive Only GBR 375ns 125ns DTSTB 125ns 75ns DB0 - DB15 TRISTATE TRISTATE STATUS 75ns BUFFENA NOTE: 1. R/W = LOGIC 0 Figure 7 – Timing Diagram, Status Word Transfer BITEN 375 ns 125ns DTSTB 125ns 75ns DB0 - DB15 TRISTATE BIT WORD TRISTATE 75ns BUFFENA NOTE: 1. R/W = LOGIC 0 Figure 8 – Timing Diagram, Bit Word Transfer Aeroflex Circuit Technology 11 SCDCT2542 REV C 8/11/98 Plainview NY (516) 694-6700 DTREQ DON’T CARE 0ns MIN DTGRT 100ns MAX 375ns TYP DTACK 125ns TYP DTSTB 125ns TYP 75ns MAX 75ns MAX VALID DB0 - DB15 TRISTATE RECEIVED DATA WORD BUFFENA 50ns MAX A0 - A4 NOTES: 1. R/W = Logic 0 2. (*) = Non-Mode Only 3. BUFFENA = DTACK ADDRESS or MODE *ADDRESS +1 Figure 9 – Timing Diagram, Data to Subsystem DTREQ 0ns MIN DON’T CARE DTGRT 100ns MAX 375ns TYP DTACK 125ns TYP DTSTB 125ns TYP R/W 50ns MIN DB0 - DB15 TRANSMIT DATA WORD VALID A0 - A4 NOTES: 1. (*) = Non-Mode Only 2. Word Count for Mode Code 3. BUFFENA = Don’t Care ADDRESS or MODE 50ns MAX 50ns MAX *ADDRESS +1 Figure 10 – Timing Diagram, Data from Subsystem Aeroflex Circuit Technology 12 SCDCT2542 REV C 8/11/98 Plainview NY (516) 694-6700 Aeroflex Circuit Technology 13 SCDCT2542 REV C 8/11/98 Plainview NY (516) 694-6700 TRISTATE 125ns TYP 125ns MIN VALID RECEIVED DATA DON’T CARE 125ns MIN TRISTATE Figure 11 – Timing Diagram, Data Transfers to Subsystem (No Handshake) ADDRESS OR MODE FIELD DON’T CARE NOTES: 1. R/W = LOGIC 0 2. DTGRT = DTREQ = LOGIC 1 3. INCMD = DAT/CMD ARE LOGIC 1 A0 - A4 BUFFENA DB0 - DB15 DTSTB CT2542 Pin Out Description (DDIP) 1 41 2 42 3 43 4 44 5 45 6 46 7 47 8 48 9 49 10 50 11 51 12 52 13 53 14 54 15 55 16 56 17 57 18 58 19 59 20 A10 A9 A8 A7 A6 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 A3 A2 A1 A0 MIL-STD-1553B DTGRT REMOTE TERMINAL DTACK PROTOCOL UNIT INCMD A4 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 21 60 22 61 23 62 24 63 25 64 26 65 27 66 28 67 29 68 30 69 31 70 32 71 33 72 34 73 35 74 36 75 37 76 38 77 39 78 40 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 37 +5V A 76 N/C 38 -VEE A 77 TXDATA A 39 TXDATA A 78 STATEN Figure 12 – DDIP Pin Connection Diagram, CT2542 and Pinout Table Aeroflex Circuit Technology 14 SCDCT2542 REV C 8/11/98 Plainview NY (516) 694-6700 CT2542 Pin Out Description (FP) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 N/C A10 A9 A8 A7 A6 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 N/C N/C A3 A2 A1 MIL-STD-1553B A0 REMOTE TERMINAL DTGRT DTACK PROTOCOL UNIT INCMD A4 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 N/C CT2542-FP 82 81 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 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 23 +5V 64 RESET 24 BRO ENA 65 DTREQ 25 GND 66 BUF 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 35 -VEE B 76 DTACK 36 +15V B 77 DTGRT 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 Aeroflex Circuit Technology 15 SCDCT2542 REV C 8/11/98 Plainview NY (516) 694-6700 Plug In Package Outline 2.100 1.870 Lead 1 & ESD Designator 1.900 .100 .110 Pin 2 Pin 1 .050 Pin 19 TYP Pin 20 .250 MAX Pin 59 Pin 41 .018 DIA TYP 1.650 1.500 Pin 60 Pin 78 Pin 21 Pin 22 .100 TYP Pin 40 Pin 39 .250 1.800 Flat Package Outline .050 2.200 MAX .010 ±.002 .015 Pin 42 Pin 82 .181 MAX 1.610 MAX Lead 1 & ESD Designator .400 MIN .095 (4 Places) Aeroflex Circuit Technology Pin 41 2.000 .050 Lead Centers 41 Leads/Side 16 .080 SCDCT2542 REV C 8/11/98 Plainview NY (516) 694-6700 CIRCUIT TECHNOLOGY Ordering Information Model Number Screening DESC SMD # Package Military Temperature, -55°C to +125°C, Screened to the individual test methods of MIL-STD-883 - Plug in - Flat Package Industrial Temperature, -40°C to +85°C, No Burn-in - Plug in - Flat Package CT2542 - 5962–8979803XA Plug in CT2542 - 5962–8979803XC Plug in CT2542-FP - 5962–8979803YA Flat Package CT2542-FP - 5962–8979803YC Flat Package CT2542 CT2542-FP CT2542-701 CT2542-FP-701 Telephone: (516) 694-6700 FAX: (516) 694-6715 Toll Free Inquiries: 1-(800)THE-1553 Aeroflex Circuit Technology 35 South Service Road Plainview New York 11830 Specifications subject to change without notice. Aeroflex Circuit Technology 17 SCDCT2542 REV C 8/11/98 Plainview NY (516) 694-6700