CT2554 Aeroflex Circuit Technology, CT2554 Datasheet - Page 32

• Manufacturer Part Number: CT2554
• Description: Ct2553 / 2554 / 2555 / 2556 Advanced Integrated Mux Aim Hybrid For Mil-std-1553
• Manufacturer: Aeroflex Circuit Technology

Aeroflex Circuit Technology
Pin
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
1. I
2. I
3. I
4. I
5. Internal Pull-up Resistor = 30K Ohms, typ.
6. Internal Pull-up Resistor = 16K Ohms, typ.
7. Pin 13 = B6, Pin 15 = B7 and Pin 52 = B8 (MSB). B6, B7 and B8 are the MSB lines of an 8 BIT Counter used in the BC and MT
mode to count 32 WORD TRANSFERS to memory (16 words received off the bus) for a total of 128 DATA and Tag words (in
MT mode). (See pages 19 & 20 for discussion.)
IH
IL
OH
OL
D09
D11
D13
D15
RTAD3
RTAD2
RTADP
SA/MC-2
SA/MC-4
SA/MC-3
THIS-RT
RTPARERR
T/R
+5VB
TX/RX-B
A00
A02
A04
A06
A08
A10
A12
A14
MEMWR
MEMENA-IN
INCMD
MSTRCLR
INT
IOEN
SELECT
READYD
TAGEN
+5VA
TX/RX-A
is specified at: V
is specified at: V
is specified at: V
is specified at: V
Name
Table 7A – CT2553 Pin Function Table (78 Pin DIP) (continued)
I
CC
CC
IH
CC
CC
±20
(5)
(5)
(5)
(5)
(5)
(5)
(5)
(5)
(5)
(5)
(5)
(5)
(5)
(5)
(5)
(6)
(6)
(µA)
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
= 5.5V, V
= 5.5V, V
= 4.5V, V
= 4.5V, V
I
IL
±0.02
-0.4
-0.4
-0.4
-0.4
-0.4
-0.4
-0.4
-0.4
-0.4
-0.4
-0.4
-0.4
-0.4
-0.4
-0.4
-0.7
-0.7
(mA) I
IL
IH
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
IH
IH
= 0.4V.
= 2.7V.
= 0.4V.
= 2.4V.
OH
-400
-400
-400
-400
-400
-400
-400
-400
-400
-400
-400
-400
-400
-400
-400
-400
-400
-400
-400
-400
-400
-400
-400
-400
(µA) I
-
-
-
-
-
-
-
-
-
-
OL
3.6
3.6
3.6
3.6
2.0
2.0
2.0
2.0
2.0
2.0
3.6
3.6
3.6
3.6
3.6
3.6
3.6
3.6
4.0
2.0
4.0
4.0
4.0
4.0
(mA)
-
-
-
-
-
-
-
-
-
-
I/O Data Bus Bit 9.
I/O Data Bus Bit 11.
I/O Data Bus Bit 13.
I/O Data Bus Bit 15 (MSB).
Remote Terminal Address Bit 3.
Remote Terminal Address Bit 2.
Remote Terminal Address Parity input.
Subaddress/Mode Command Bit 2. B8 (MSB) counter.
Subaddress/Mode Command Bit 4.
Subaddress/Mode Command Bit 3.
Logic 0 pulse indicates receipt of a valid command word which contains
the Remote Terminal address equivalent to the RTADO-RTAD4 inputs.
RTU (address) Parity Error. Logic 0 indicates RTU address parity (odd
parity: RTADO-RTAD4, RTADP) has been violated.
Transmit/Receive 1553 data. Latched T/R bit from current command
word.
+5V power supply connection for the B channel transceiver.
Transmit/Receive transceiver-B. Inverted I/O to coupling transformer
that connects to channel B of the 1553 Bus.
Address Bit 0 (LSB).
Address Bit 2.
Address Bit 4.
Address Bit 6.
Address Bit 8.
Address Bit 10.
Address Bit 12.
Address Bit 14.
Memory Write. Output pulse to write data into memory.
Memory Enable In. Enables internal RAM only; connect directly to
MEMENA-OUT.
In Command. Indicates BC or RTU currently in message transfer
sequence.
Master Clear. Power-on reset from CPU.
Interrupt. Interrupt pulse line to CPU.
Input/Output Enable. Output to enable external hybrid to the
address/data bus.
Select. Input from the CPU. When active, selects CT2553 for operation.
Ready Data. When active indicates data has been received from, or is
available to, the CPU.
Tag Enable. Enables an external time to counter for transferring the
time tag word into memory.
+5V input/power supply for channel A transceiver.
Transmit/Receive transceiver-A. Inverted I/O to the coupling
transformer that connects
32
Description
to the A channel of the 1553 Bus.
SCDCT2553 REV B 8/6/99 Plainview NY [phone]