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BU-6174X/6184X/6186X
ENHANCED MINIATURE ADVANCED
COMMUNICATIONS ENGINE
TM
FEATURES
• Fully Integrated 1553A/B Notice 2,
McAir, STANAG 3838 Interface Terminal
• Compatible with Mini-ACE (Plus)
and ACE Generations
• Choice of :
- RT or BC/RT/MT In Same Footprint
- RT or BC/RT/MT with 4K RAM
- BC/RT/MT with 64K RAM, and RAM
parity
• Choice of 5V or 3.3V Logic
• 5V Transceiver with 1760 and McAir
Compatible Options
• Comprehensive Built-In Self-Test
• Flexible Processor/Memory Interface,
with Reduced Host Wait Time
DESCRIPTION
The Enhanced Miniature Advanced Communications Engine
(Enhanced Mini-ACE) family of MIL-STD-1553 terminals provide complete interfaces between a host processor and a 1553 bus, and integrate
dual transceiver, protocol logic, and 4K words or 64K words of RAM.
These terminals are nearly 100% footprint and software compatible
with the previous generation Mini-ACE (Plus) terminals, and are software compatible with the older ACE series.
They are powered by a choice of 5V or 3.3V logic. Multiprotocol support of MIL-STD-1553A/B and STANAG 3838, including versions
incorporating McAir compatible transmitters, is provided. There is a
choice of 10, 12, 16, or 20 MHz clocks. The BC/RT/MT versions with
64K words of RAM include built-in RAM parity checking.
BC features include a built-in message sequence control engine, with
a set of 20 instructions. This provides an autonomous means of
implementing multi-frame message scheduling, message retry
schemes, data double buffering, asynchronous message insertion,
and reporting to the host CPU. The Enhanced Mini-ACE incorporates
a fully autonomous built-in self-test, which provides comprehensive
testing of the internal protocol logic and/or RAM.
• Choice of 10, 12, 16, or 20 MHz Clock
• Highly Autonomous BC with
Built-In Message Sequence Control:
- Frame Scheduling
- Branching
- Asynchronous Message Insertion
- General Purpose Queue
- User-defined Interrupts
• Advanced RT Functions
- Global Circular Buffering
- Interrupt Status Queue
- 50% Circular Buffer Rollover
Interrupts
• Selective Message Monitor
- Selection by Address, T/R Bit,
Subaddress
- Command and Data Stacks
- 50% and 100% Stack Rollover
Interrupts
The RT offers the same choices of subaddress buffering as the ACE
and Mini-ACE (Plus), along with a global circular buffering option,
50% rollover interrupt for circular buffers, an interrupt status queue,
and an "Auto-boot" option to support MIL-STD-1760.
These terminals provide the same flexibility in host interface configurations as the ACE/Mini-ACE, along with a reduction in the host
processor's worst case holdoff time.
Data Device Corporation
105 Wilbur Place
Bohemia, New York 11716
631-567-5600 Fax: 631-567-7358
www.ddc-web.com
FOR MORE INFORMATION CONTACT:
Technical Support:
1-800-DDC-5757 ext. 7234
©
2000 Data Device Corporation
TABLE 1. ENHANCED MINI-ACE SERIES SPECIFICATIONS
(CONT.)
TABLE 1. ENHANCED MINI-ACE SERIES SPECIFICATIONS
PARAMETER
ABSOLUTE MAXIMUM RATING
Supply Voltage
! Logic +5V or +3.3V
! RAM +5V
! Transceiver +5V (Note 12)
Logic
! Voltage Input Range for +5V
Logic (BU-61XX5)
! Voltage Input Range for +3.3V
Logic (BU-61XX3/4)
RECEIVER
Differential Input Resistance
(Notes 1-6)
Differential Input Capacitance
(Notes 1-6)
Threshold Voltage, Transformer
Coupled, Measured on Stub
Common Mode Voltage (Note 7)
MIN
MAX
UNITS
PARAMETER
-0.3
-0.3
-0.3
6.0
6.0
7.0
-0.3
6.0
V
-0.3
6.0
POWER SUPPLY REQUIREMENTS
Voltages/Tolerances
! +5V (RAM for 61864(5),
Logic for BU-61XX5) (Note 12)
! +3.3V (Logic for BU-61XX3/4)
(Note 12)
! +5V (Ch. A, Ch. B)
Current Drain (Total Hybrid)
! BU-61865XX-XX0
+5V (Logic, RAM, Ch. A, Ch. B)
• Idle
• 25% Transmitter Duty Cycle
• 50% Transmitter Duty Cycle
• 100% Transmitter Duty Cycle
! BU-61865X3-XX2
+5V (Logic, RAM, Ch. A, Ch. B)
• Idle
• 25% Transmitter Duty Cycle
• 50% Transmitter Duty Cycle
• 100% Transmitter Duty Cycle
! BU-61864XX-XX0
+5V (RAM, Ch. A, Ch. B)
• Idle
• 25% Transmitter Duty Cycle
• 50% Transmitter Duty Cycle
• 100% Transmitter Duty Cycle
• 3.3V Logic
! BU-61864X3-XX2
+5V (RAM, Ch. A, Ch. B)
• Idle
• 25% Transmitter Duty Cycle
• 50% Transmitter Duty Cycle
• 100% Transmitter Duty Cycle
• 3.3V Logic
! BU-61745XX-XX0. BU-61845XX-XX0
+5V (Logic, RAM, Ch. A, Ch. B)
• Idle
• 25% Transmitter Duty Cycle
• 50% Transmitter Duty Cycle
• 100% Transmitter Duty Cycle
! BU-61745X3-XX2. BU-61845X3-XX2
+5V (Logic, RAM, Ch. A, Ch. B)
• Idle
• 25% Transmitter Duty Cycle
• 50% Transmitter Duty Cycle
• 100% Transmitter Duty Cycle
! BU-61743XX-XX0, BU-61843XX-XX0
+5V (Ch. A, Ch. B)
• Idle
• 25% Transmitter Duty Cycle
• 50% Transmitter Duty Cycle
• 100% Transmitter Duty Cycle
• 3.3V Logic
! BU-61743X3-XX2, BU-61843X3-XX2
+5V (Ch. A, Ch. B)
• Idle
• 25% Transmitter Duty Cycle
• 50% Transmitter Duty Cycle
• 100% Transmitter Duty Cycle
• 3.3V Logic
V
V
V
V
2.5
kΩ
5
20
22
Vp-p
10
7
pF
0.860
0.200
TRANSMITTER
Differential Output Voltage
! Direct Coupled Across 35 Ω,
6
Measured on Bus
! Transformer Coupled Across
70 Ω, Measured on Bus
18
(BU-61XXXXX-XX0,
20
BU-61XXXXX-XX2) (Note 13)
Output Noise, Differential (Direct
Coupled)
Output Offset Voltage, Transformer -250
Coupled Across 70 ohms
Rise/Fall Time
100
(BU-61XXXX3,
200
BU-61XXXX4)
LOGIC
VIH
All signals except CLK_IN
2.1
CLK_IN
0.8•Vcc
VIL
All signals except CLK_IN
CLK_IN
Schmidt Hysteresis
All signals except CLK_IN
0.4
CLK_IN
1.0
IIH, IIL
All signals except CLK_IN
IIH (Vcc=5.25V, VIN=Vcc)
-10
IIH (Vcc=5.25V, VIN=2.7V)
-350
IIH (Vcc=3.6V, VIN=Vcc)
-10
IIH (Vcc=3.6V, VIN=2.7V)
-350
IIL (Vcc=5.25V, VIN=0.4V)
-350
IIL (Vcc=3.6V, VIN=0.4V)
-350
CLK_IN
IIH
-10
IIL
-10
VOH (Vcc=4.5V, VIH=2.7V,
2.4
VIL=0.2V, IOH=max)
VOH (Vcc=3.0V, VIH=2.7V,
2.4
VIL=0.2V, IOH=max)
VOL (Vcc=4.5V, VIH=2.7V,
VIL=0.2V, IOL=max)
VOL (Vcc=3.0V, VIH=2.7V,
VIL=0.2V, IOL=max)
IOL
3.4
IOH
CI (Input Capacitance)
CIO (Bi-directional signal input
capacitance)
Data Device Corporation
www.ddc-web.com
TYP
Vpeak
9
Vp-p
Vp-p
Vp-p
mVp-p
250
150
250
27
27
10
mVp
300
300
nsec
nsec
V
V
0.7
0.2•Vcc
V
V
V
V
10
-50
10
-33
-50
-33
µA
µA
µA
µA
µA
µA
10
10
µA
µA
V
V
0.4
V
0.4
V
-3.4
50
50
MIN
TYP
MAX
UNITS
4.5
5.0
5.5
V
3.0
3.3
3.6
V
4.75
5.0
5.25
V
180
285
390
600
mA
mA
mA
mA
180
296
412
645
mA
mA
mA
mA
120
225
330
540
40
mA
mA
mA
mA
mA
120
236
352
585
40
mA
mA
mA
mA
mA
160
265
370
580
mA
mA
mA
mA
160
276
392
625
mA
mA
mA
mA
100
205
310
520
40
mA
mA
mA
mA
mA
mA
100
216
332
565
40
mA
mA
mA
mA
mA
mA
mA
pF
pF
3
BU-6174X/6184X/6186X
Rev. C
