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参数资料
| 型号： | 7282L12PAG |
| 厂商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分类： | FIFO |
| 英文描述： | 1K X 9 BI-DIRECTIONAL FIFO, 12 ns, PDSO56 |
| 封装： | GREEN, TSSOP-56 |
| 文件页数： | 11/12页 |
| 文件大小： | 121K |
| 代理商： | 7282L12PAG |
8
COMMERCIALTEMPERATURERANGE
IDT7280/7281/7282/7283/7284/7285 5V ASYNCHRONOUS FIFO
DUAL 256 x 9, 512 x 9, 1,024 x 9, 2,048 x 9, 4,096 x 9 and 8,192 x 9
JANUARY 13, 2009
Figure 13. Block Diagram of 256 x 18, 512 x 18, 1,024 x 18, 2,048 x 18, 4,096 x 18, 8,192 x 18 FIFO Memory Used in Width Expansion Mode
Figure 12. Block Diagram of One 256 x 9, 512 x 9, 1,024 x 9, 2,048 x 9, 4,096 x 9, 8,192 x 9 FIFO Used in Single Device Mode
USAGE MODES:
WIDTH EXPANSION
Wordwidthmaybeincreasedsimplybyconnectingthecorrespondinginput
control signals of multiple FIFOs. Status flags (
EF,FFandHF)canbedetected
from any one FIFO. Figure 13 demonstrates an 18-bit word width by using the
two FIFOs contained in the IDT7280/7281/7282/7283/7284/7285s. Any word
width can be attained by adding FIFOs (Figure 13).
BIDIRECTIONAL OPERATION
Applications which require data buffering between two systems (each
system capable of Read and Write operations) can be achieved by pairing
IDT7280/7281/7282/7283/7384/7285s as shown in Figure 16. Both Depth
Expansion and Width Expansion may be used in this mode.
DATA FLOW-THROUGH
Two types of flow-through modes are permitted, a read flow-through
and write flow-through mode. For the read flow-through mode (Figure 17),
the FIFO permits a reading of a single word after writing one word of data into
an empty FIFO. The data is enabled on the bus in (tWEF + tA) ns after the rising
edge of
W,calledthefirstwriteedge,anditremainsonthe busuntiltheRline
is raised from LOW-to-HIGH, after which the bus would go into a three-state
mode after tRHZ ns. The
EF line would have a pulse showing temporary
deassertion and then would be asserted.
In the write flow-through mode (Figure 18), the FIFO permits the writing
of a single word of data immediately after reading one word of data from a
full FIFO. The
RlinecausestheFFtobedeassertedbuttheWlinebeingLOW
causes it to be asserted again in anticipation of a new data word. On the rising
edgeof
W,thenewwordisloadedintheFIFO.TheWlinemustbetoggledwhen
FFisnotassertedtowritenewdataintheFIFOandtoincrementthewritepointer.
COMPOUND EXPANSION
The two expansion techniques described above can be applied together
in a straightforward manner to achieve large FIFO arrays (see Figure 15).
WRITE (W)
DATA IN (D)
FULL FLAG (FF)
RESET (RS)
9
READ (R)
9
DATA OUT (Q)
EMPTY FLAG (EF)
RETRANSMIT (RT)
EXPANSION IN (XI)
(HF)
FIFO
A or B
IDT
7280
7281
7282
7283
7284
7285
(HALF-FULL FLAG)
3208 drw 14
XIA
XIB
9
18
9
18
HFB
HFA
9
DATA
WRITE (W)
FULL FLAG (FFA)
RESET (RS)
(D)
IN
READ (R)
EMPTY FLAG (EFB)
RETRANSMIT (RT)
DATA
(Q)
OUT
3208 drw 15
FIFO A
FIFO B
7280/7281/7282/
7283/7284/7285
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相关代理商/技术参数 |
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| 7282L12PAG8 | 功能描述:先进先出 RoHS:否 制造商:IDT 电路数量: 数据总线宽度:18 bit 总线定向:Unidirectional 存储容量:4 Mbit 定时类型:Synchronous 组织:256 K x 18 最大时钟频率:100 MHz 访问时间:10 ns 电源电压-最大:3.6 V 电源电压-最小:6 V 最大工作电流:35 mA 最大工作温度:+ 85 C 封装 / 箱体:TQFP-80 封装: |
| 7282L15PA | 功能描述:先进先出 RoHS:否 制造商:IDT 电路数量: 数据总线宽度:18 bit 总线定向:Unidirectional 存储容量:4 Mbit 定时类型:Synchronous 组织:256 K x 18 最大时钟频率:100 MHz 访问时间:10 ns 电源电压-最大:3.6 V 电源电压-最小:6 V 最大工作电流:35 mA 最大工作温度:+ 85 C 封装 / 箱体:TQFP-80 封装: |
| 7282L15PA8 | 功能描述:先进先出 RoHS:否 制造商:IDT 电路数量: 数据总线宽度: 总线定向: 存储容量: 定时类型: 组织: 最大时钟频率: 访问时间: 电源电压-最大: 电源电压-最小: 最大工作电流: 最大工作温度: 封装 / 箱体: 封装: |
| 7282L15PAGI | 功能描述:IC NWN FIFO 1KX9 56TSSOP 制造商:idt, integrated device technology inc 系列:7200 零件状态:初步 存储容量:18K（1K x 9 x 2） 功能:异步 数据速率:40MHz 访问时间:15ns 电压 - 电源:4.5V ~ 5.5V 电流 - 电源（最大值）:125mA 总线方向:单向 扩充类型:深度，宽度 可编程标志支持:无 中继能力:是 FWFT 支持:无 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:56-TFSOP（0.240"，6.10mm 宽） 供应商器件封装:56-TSSOP 标准包装:34 |
| 7282L15PAGI8 | 制造商:Integrated Device Technology Inc 功能描述:FIFO Mem Async Dual Depth/Width Uni-Dir 1K x 9 56-Pin TSSOP T/R |
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