參數(shù)資料
型號: IDT723631L20PF
廠商: INTEGRATED DEVICE TECHNOLOGY INC
元件分類: DRAM
英文描述: Quad, High Slew Rate, Single-Supply, Op Amp 14-PDIP 0 to 70
中文描述: 512 X 36 OTHER FIFO, 13 ns, PQFP120
封裝: TQFP-120
文件頁數(shù): 21/23頁
文件大?。?/td> 269K
代理商: IDT723631L20PF
IDT723631/723641/723651 CMOS SyncFIFO
512 x 36, 1024 x 36, 2048 x 36
COMMERCIAL TEMPERATURE RANGE
21
Figure 16
CALCULATING POWER DISSIPATION
The I
CC
(f) current for the graph in Figure 16 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 I
CC
(f) taken from FIgure 16, the maximum power dissipation (PT) of the IDT723631/723641/723651 may be
calculated by:
P
T
= V
CC
x [I
CC(f)
+ (N x
I
CC
x dc)] +
(C
L
x V
CC
2
x
f
O
)
where:
N
=
number of inputs driven by TTL levels
I
CC
=
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
C
L
=
output capacitance load
f
O
=
switching frequency of an output
When no reads or writes are occurring on the IDT723631/723641/723651, the power dissipated by a single clock (CLKA
or CLKB) input running at frequency fS is calculated by:
P
T
= V
CC
x f
S
x 0.209 mA/MHz
TYPICAL CHARACTERISTICS
SUPPLY CURRENT
vs
CLOCK FREQUENCY
0
10
20
30
40
50
60
70
0
50
100
150
200
250
VCC = 5.0 V
fs
IC
f = 1/2 f
A
°
C
CL
VCC = 4.5 V
VCC = 5.5 V
3023 drw 19
s
相關(guān)PDF資料
PDF描述
IDT723631L20PQF Quad, High Slew Rate, Single-Supply, Op Amp 14-PDIP 0 to 70
IDT723631L30PF Quad, High Slew Rate, Single-Supply, Op Amp 14-TSSOP 0 to 70
IDT723631L30PQF Quad, High Slew Rate, Single-Supply, Op Amp 14-TSSOP 0 to 70
IDT723641L15PF Quad, High Slew Rate, Single-Supply, Op Amp 14-PDIP -40 to 105
IDT723651L30PQF HIGH-SLEW-RATE, SINGLE-SUPPLY OPERATIONAL AMPLIFIERS 14-SOIC -40 to 105
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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