IDT72V3622/72V3632/72V3642 CMOS 3.3V SyncBiFIFOTM 256 x 36 x 2, 512 x 36 " />
參數(shù)資料
型號: IDT72V3642L10PF
廠商: IDT, Integrated Device Technology Inc
文件頁數(shù): 27/29頁
文件大小: 0K
描述: IC FIFO SYNC 3.3V CMOS 120-TQFP
標(biāo)準(zhǔn)包裝: 45
系列: 72V
功能: 同步
存儲容量: 72k(1k x 36 x 2)
數(shù)據(jù)速率: 100MHz
訪問時間: 10ns
電源電壓: 3 V ~ 3.6 V
工作溫度: 0°C ~ 70°C
安裝類型: 表面貼裝
封裝/外殼: 120-LQFP
供應(yīng)商設(shè)備封裝: 120-TQFP(14x14)
包裝: 托盤
其它名稱: 72V3642L10PF
800-1534
7
COMMERCIAL TEMPERATURERANGE
IDT72V3622/72V3632/72V3642 CMOS 3.3V SyncBiFIFOTM
256 x 36 x 2, 512 x 36 x 2, 1,024 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 IDT72V3622/72V3632/72V3642 with
CLKA and CLKB 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 outputs = 36
CL
=
output capacitance load
fo
=
switchingfrequencyofanoutput
Figure 1. Typical Characteristics: Supply Current (ICC) vs. Clock Frequency (fS)
010
20
30
40
50
60
70
0
25
50
75
100
125
150
VCC = 3.3V
fS
Clock Frequency
MHz
ICC(f)
Supply
Current
mA
fdata = 1/2 fS
TA = 25οC
CL = 0 pF
VCC = 3.0V
VCC = 3.6V
4660 drw 03a
175
200
80
90
100
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