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參數(shù)資料
| 型號： | 723631L15PF9 |
| 廠商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分類： | FIFO |
| 英文描述： | 512 X 36 OTHER FIFO, 11 ns, PQFP120 |
| 封裝： | TQFP-120 |
| 文件頁數(shù)： | 18/21頁 |
| 文件大?。?/td> | 219K |
| 代理商： | 723631L15PF9 |
6
COMMERCIALANDINDUSTRIAL
TEMPERATURERANGES
IDT723631/723641/723651 CMOS SyncFIFO
512 x 36, 1,024 x 36 and 2,048 x 36
Figure 1. Typical Characteristics: Supply vs Clock Frequency
CALCULATING POWER DISSIPATION
The ICC(f) current for the graph in Figure 1 was taken while simultaneously reading and writing the FIFO on the IDT723641 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 IDT723631/723641/723651
inputs driven by TTL HIGH levels are known, the power dissipation can be calculated with the equation below.
With ICC(f) taken from Figure 1, the maximum power dissipation (PT) of these FIFOs may be calculated by:
PT = VCC x [ICC(f) + (N x
ICC x dc)] + Σ(CL x VCC2 x fO)
where:
N
=
number of inputs driven by TTL levels
ICC = increase in power supply current for each input at a TTL HIGH level
dc
=
duty cycle of inputs at a TTL HIGH level of 3.4
CL
=
output capacitance load
fO
=
switching frequency of an output
When no reads or writes are occurring on these devices, the power dissipated by a single clock (CLKA or CLKB) input running at frequency fS is
calculated by:
PT = VCC x fS x 0.209 mA/MHz
010
20
30
40
50
60
70
0
50
100
150
200
250
VCC = 5.0V
fS
Clock Frequency MHz
ICC(f)
Supply
Current
mA
VCC= 4.5V
VCC = 5.5V
3023 drw04
fdata = 1/2 fS
TA = 25
°C
CL = 0pF
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 723631L15PFG | 制造商:Integrated Device Technology Inc 功能描述:FIFO - Bulk |
| 723631L15PFG8 | 制造商:Integrated Device Technology Inc 功能描述:FIFO - Tape and Reel |
| 723631L15PQF | 功能描述:IC FIFO SYNC 512X36 132QFP 制造商:idt, integrated device technology inc 系列:7200 包裝:托盤 零件狀態(tài):過期 存儲容量:18K（512 x 36） 功能:同步 數(shù)據(jù)速率:66.7MHz 訪問時間:11ns 電壓 - 電源:4.5 V ~ 5.5 V 電流 - 電源（最大值）:400μA 總線方向:雙向 擴充類型:深度，寬度 可編程標(biāo)志支持:是 中繼能力:是 FWFT 支持:是 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:132-BQFP 緩沖式 供應(yīng)商器件封裝:132-PQFP（24.13x24.13） 標(biāo)準(zhǔn)包裝:36 |
| 723631L20PF | 制造商:Integrated Device Technology Inc 功能描述:FIFO Mem Sync Dual Depth Bi-Dir 512 x 36 120-Pin TQFP |
| 723631L20PF8 | 制造商:Integrated Device Technology Inc 功能描述:FIFO Mem Sync Dual Depth Bi-Dir 512 x 36 120-Pin TQFP T/R |
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