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參數(shù)資料
| 型號： | BU-61864F4-192Q |
| 廠商： | DATA DEVICE CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 2 CHANNEL(S), 1M bps, MIL-STD-1553 CONTROLLER, CQFP72 |
| 封裝： | 1 X 1 INCH, 0.155 INCH HEIGHT, FP-72 |
| 文件頁數(shù)： | 37/56頁 |
| 文件大小： | 321K |
| 代理商： | BU-61864F4-192Q |
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42
SIGNAL NAME
PIN
DESCRIPTION
TX/RX-A (I/O)
5
TX/RX-A (I/O)
7
TX/RX-B (I/O)
13
TX/RX-B (I/O)
16
Analog Transmit/Receive Input/Outputs. Connect directly to 1553 isolation transformers.
1553 ISOLATION TRANSFORMER INTERFACE (4)
TABLE 47. SIGNAL DESCRIPTIONS BY FUNCTIONAL GROUPS
16-bit bi-directional data bus. This bus interfaces the host processor to the Enhanced Mini-ACE's internal registers and
internal RAM. In addition, in transparent mode, this bus allows data transfers to take place between the internal proto-
col/memory management logic and up to 64K x 16 of external RAM. Most of the time, the outputs for D15 through D0 are
in the high impedance state. They drive outward in the buffered or transparent mode when the host CPU reads the inter-
nal RAM or registers.
Also, in the transparent mode, D15-D0 will drive outward (towards the host) when the protocol/management logic is
accessing (either reading or writing) internal RAM, or writing to external RAM. In the transparent mode, D15-D0 drives
inward when the CPU writes internal registers or RAM, or when the protocol/memory management logic reads external
RAM.
42
D10
D0 (LSB)
38
D1
43
D2
44
D3
D4
39
45
D5
36
D6
47
D7
46
D8
51
54
D9
52
D11
49
D12
DATA BUS (16)
48
D13
50
D14
53
D15 (MSB)
DESCRIPTION
PIN
SIGNAL NAME
+5V Vcc CH A
PIN
SIGNAL NAME
72
Channel A transceiver power.
+5V Vcc CH B
20
Channel B transceiver power.
+5V / +3.3V Logic
37
Logic power. For BU-61864/61843/61743, this pin must be connected to +3.3V.
For BU-61865/61845/61745, this pin must be connected to +5V.
+5V RAM
26
For BU-61864 or BU-61865, this pin must be connected to +5V.
Note that for BU-6184X/6174X, this pin assumes the function UPADDREN.
GROUND
17
Ground.
18
19
65
POWER AND GROUND
PIN
72
20
37
-
17
18
19
65
67
DESCRIPTION
BU-61864(5)
(64K RAM)
BU-61843(5) /
61743(5)
(4KK RAM)
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