CT2566 Datasheet, PDF (2/37 Pages) Aeroflex Circuit Technology – CT2566 MIL-STD-1553 to Microprocessor Interface Unit

PARAMETER
Specifications at Nominal Power Supply Voltages
VALUE
Logic
I_IH (With V_IH = 2.7V)
I_IL (With V_IL = 0.0V)
I_OH
I_OL
V_IH
V_IL
V_OH
V_OL
Clock
Power Supplies
Voltage
Current Drain
Temperature Range
Operating (Case)
Storage
Physical Characteristics
Size
78 pin DIP
82 pin flatpack
Weight
78 pin DIP
82 pin flatpack
−630
−700
4.0 min
4.0
2.0
0.8
3.7
0.4
12
5.0±10%
10 typ
−55 to +125
−65 to +150
2.1 x 1.87 x 0.25
(53 x 47.5 x 6.4)
2.1 x 1.87 x 0.25
(55.6 x 40.6 x 3.71)
1 (28)
1 (28)
Table 1 – Specifications
UNITS
µA
µA
mA
mA
V
V
V
V
MHz
V
mA
°C
°C
in
(mm)
in
(mm)
oz (g)
oz (g)
GENERAL
The CT2566 was designed to perform required
handshaking to the 1553 interface device, storing
or retrieving message(s) from a user supplied
RAM and notifying the CPU that a 1553
transaction has occurred. The CPU uses this
RAM to read the received data as well as to store
messages to be transmitted onto the Bus.
The CT2566 can be used to implement BC, RT,
or MT operation and can be either memory
mapped or I/O mapped to CPU address space.
Registers internal to the CT2566 control its
operation.
The CT2566 can access up to four external,
user supplied registers and can address up to
64K words of RAM. The RAM selected must be a
non-latched static RAM (capable of meeting the
timing constraints for the CT2566). A double
buffering architecture is provided to prevent
incomplete or partially updated information from
being transmitted onto the 1553 Data Bus.
The CT2566 requires an external, user supplied
clock.
COMPATIBLE MICROPROCESSOR TYPES
The CT2566 may be used with most common
microprocessors, including, the Motorola 68000
family, the Intel 8080 family, Zilog Z8000
products, and available MIL-STD-1750
processors.
Interfacing the CT2566 to the 1553 Data Bus
requires external circuitry such as Aeroflex’s
CT2565(BC/RT/MT)
and
ACT4489D
transceivers. Figure 2 shows the interconnection
for these components.
Aeroflex Circuit Technology
2
SCDCT2566 REV B 8/10/99 Plainview NY [phone]