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参数资料
| 型号： | BU-61840B3-100L |
| 厂商： | DATA DEVICE CORP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 2 CHANNEL(S), 1M bps, MIL-STD-1553 CONTROLLER, PBGA128 |
| 封装： | 0.815 X 0.815 INCH, 0.140 INCH HEIGHT, BGA-128 |
| 文件页数： | 32/60页 |
| 文件大小： | 763K |
| 代理商： | BU-61840B3-100L |
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38
Data Device Corporation
www.ddc-web.com
BU-6174X/6184X/6186X
D-03/02-250
CLOCK IN
t1
t6
t7
t2
t3
t18
t16
VALID
t8
t9
t14
t15
t17
VALID
t12
t10
t4
t11
t5
VALID
t13
SELECT
(Note 2,7)
(Note 2)
(Note 3,4,7)
(Note 4,5)
STRBD
MEM/REG
RD/WR
IOEN
(Note 2,6)
(Note 6)
(Note 9,10)
(Note 7,8,9,10)
READYD
A15-A0
D15-D0
FIGURE 14. CPU WRITING RAM / REGISTER (16-BIT BUFFERED, NONZERO WAIT)
NOTES:
1.
For the 16-bit buffered nonzero wait configuration TRANSPARENT/BUFFERED must be connected to logic "0", ZERO_WAIT and DTREG / 16/8
must be connected to logic "1". The inputs TRIGGER_SEL and MSB/LSB may be connected to either +5V or ground.
2.
SELECT and STRBD may be tied together. IOEN goes low on the first rising CLK edge when SELECT STRBD is sampled low (satisfying t1)
and the Enhanced Mini-ACE's protocol/memory management logic is not accessing the internal RAM. When this occurs, IOEN goes low, start-
ing the transfer cycle. After IOEN goes low, SELECT may be released high.
3.
MEM/REG must be presented high for memory access, low for register access.
4.
MEM/REG and RD/WR are buffered transparently until the first falling edge of CLK after IOEN goes low. After this CLK edge, MEM/REG and
RD/WR become latched internally.
5.
The logic sense for RD/WR in the diagram assumes that POLARITY_SEL is connected to logic "1." If POLARITY_SEL is connected to logic "0,"
RD/WR must be asserted high to write.
6.
The timing for the IOEN and READYD outputs assumes a 50 pf load. For loading above 50 pf, the validity of IOEN and READYD is delayed by
an additional 0.14 ns/pf typ, 0.28 ns/pf max.
7.
The timing for A15-A0, MEM/REG, and SELECT assumes that ADDR-LAT is connected to logic "1." Refer to Address Latch timing for additional
details.
9.
The address bus A15-A0 and data bus D15-D0 are internally buffered transparently until the first rising edge of CLK after IOEN goes low. After
this CLK edge, A15-A0 and D15-D0 become latched internally.
10
Setup time given for use in worst case timing calculations. None of the Enhanced Mini-ACE input signals are required to be synchronized to the
system clock. When SELECT and STRBD do not meet the setup time of t1, but occur during the setup time of an internal flip-flop, an additional
clock cycle may be inserted between the falling clock edge that latches MEM/REG and RD/WR and the rising clock edge that latches the address
(A15-A0) and data (D15-D0). When this occurs, the delay from IOEN falling to READYD falling (t14) increases by one clock cycle and the address
and data hold time (t12 and t13) must be increased by one clock.
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| BU-61860B3-402W | 2 CHANNEL(S), 1M bps, MIL-STD-1553 CONTROLLER, PBGA128 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| BU-61840B3NEW | 制造商:未知厂家 制造商全称:未知厂家 功能描述:MIL-STD-1553 Components |μ-ACE (Micro-ACE?) |
| BU-61843 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:MIL-STD-1553 Components |Enhanced Mini-ACE? |
| BU-61843F3-100 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Telecommunication IC |
| BU-61843F3-110 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Telecommunication IC |
| BU-61843F4-100 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Telecommunication IC |
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