IDT72V3656/72V3666/72V3676 3.3V CMOS TRIPLE BUS SyncFIFOTM WITH BUS MATCHI" />
參數(shù)資料
型號: IDT72V3656L15PF8
廠商: IDT, Integrated Device Technology Inc
文件頁數(shù): 38/39頁
文件大?。?/td> 0K
描述: IC SYNC FIFO 4096X36 15NS 128QFP
標(biāo)準(zhǔn)包裝: 1,000
系列: 72V
功能: 異步
存儲容量: 147K(4K x 36)
數(shù)據(jù)速率: 67MHz
訪問時(shí)間: 15ns
電源電壓: 3.15 V ~ 3.45 V
工作溫度: 0°C ~ 70°C
安裝類型: 表面貼裝
封裝/外殼: 128-LQFP
供應(yīng)商設(shè)備封裝: 128-TQFP(14x20)
包裝: 帶卷 (TR)
其它名稱: 72V3656L15PF8
8
COMMERCIALTEMPERATURERANGE
IDT72V3656/72V3666/72V3676 3.3V CMOS TRIPLE BUS SyncFIFOTM
WITH BUS MATCHING 2,048 x 36 x 2, 4,096 x 36 x 2 and 8,192 x 36 x 2
DETERMINING ACTIVE CURRENT CONSUMPTION AND POWER DISSIPATION
The ICC(f) current for the graph in Figure 1 was taken while simultaneously reading and writing a FIFO on the IDT72V3656/72V3666/72V3676 with CLKA,
CLKB and CLKC set to fS. All data inputs and data outputs change state during each clock cycle to consume the highest supply current. Data outputs were
disconnected to normalize the graph to a zero capacitance load. Once the capacitance load per data-output channel and the number of these device's inputs
driven by TTL HIGH levels are known, the power dissipation can be calculated with the equation below.
CALCULATING POWER DISSIPATION
With ICC(f) taken from Figure 1, the maximum power dissipation (PT) of these FIFOs may be calculated by:
PT = VCC x ICC(f) +
Σ(CL x VCC2 x fo)
N
where:
N
= number of used outputs (36-bit (long word), 18-bit (word) or 9-bit (byte) bus size)
CL = outputcapacitanceload
fo
= switching frequency of an output
Figure 1. Typical Characteristics: Supply Current (ICC) vs. Clock Frequency (fS)
0
10
20
3040
506070
0
10
20
30
40
50
60
fS
Clock Frequency MHz
ICC(f)
Supply
Current
mA
fdata = 1/2 fS
TA = 25
°C
CL = 0 pF
4665 drw02a
70
90
80
100
80
90
100
VCC = 3.3V
VCC = 3.6V
VCC = 3.0V
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