IDT72V36106 View Datasheet(PDF) - Integrated Device Technology
Part Name
Description
MFG CO.
IDT72V36106 Datasheet PDF : 39 Pages
| |||
IDT72V3686/72V3696/72V36106 3.3V CMOS TRIPLE BUS SyncFIFOTM
WITH BUS-MATCHING 16,384 x 36 x 2, 32,768 x 36 x 2, 65, 536 x 36
COMMERCIAL TEMPERATURE RANGE
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 IDT72V3686/72V3696/72V36106 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
=
output capacitance load
fo
=
switching frequency of an output
100
90
80
70
60
50
40
30
20
10
0
0
fdata = 1/2 fS
TA = 25°C
CL = 0 pF
VCC = 3.3V
VCC = 3.6V
VCC = 3.0V
10
20
30
40
50
60
70
80
fS Clock Frequency MHz
Figure 1. Typical Characteristics: Supply Current (ICC) vs. Clock Frequency (fS)
8
90
100
4676 drw03
Share Link: 