IDT723642L15PF IDT, Integrated Device Technology Inc, IDT723642L15PF Datasheet - Page 7

• Manufacturer Part Number: IDT723642L15PF
• Description: IC FIFO SYNC 2048X36 120QFP
• Manufacturer: IDT, Integrated Device Technology Inc
• Series: 7200r

Specifications of IDT723642L15PF

• Function: Synchronous
• Memory Size: 72K (2K x 36)
• Data Rate: 67MHz
• Access Time: 15ns
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 120-TQFP, 120-VQFP
• Configuration: Dual
• Density: 72Kb
• Access Time (max): 10ns
• Word Size: 36b
• Organization: 1Kx36x2
• Sync/async: Synchronous
• Expandable: No
• Bus Direction: Bi-Directional
• Package Type: TQFP
• Clock Freq (max): 66.7MHz
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (min): 4.5V
• Operating Supply Voltage (max): 5.5V
• Supply Current: 400mA
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 120
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 723642L15PF

DETERMINING ACTIVE CURRENT CONSUMPTION AND POWER DISSIPATION
and CLKB set to f
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
IDT723622/723632/723642 CMOS SyncBiFIFO™
256 x 36 x 2, 512 x 36 x 2, 1,024 x 36 x 2
The I
With I
250
100
150
200
300
50
0
CC(f)
CC(f)
P
where:
N
∆I
dc
C
fo
T
0
L
CC
current for the graph in Figure 1 was taken while simultaneously reading and writing a FIFO on the IDT723622/723632/723642 with CLKA
taken from Figure 1, the maximum power dissipation (P
= V
S
CC
. All data inputs and data outputs change state during each clock cycle to consume the highest supply current. Data outputs were
=
=
=
=
=
x [I
CC
10
(f) + (N x ∆I
f
T
C
data
A
L
number of outputs = 36
increase in power supply current for each input at a TTL HIGH level
duty cycle of inputs at a TTL HIGH level of 3.4 V
output capacitance load
switching frequency of an output
= 25°C
= 0pF
Figure 1. Typical Characteristics: Supply Current (I
= 1/2 f
S
CC
20
x dc)] + Σ(C
L
30
x V
V
CC
CC
= 5.0V
2
X fo)
f
T
S
) of these FIFOs may be calculated by:
⎯ Clock Frequency ⎯ MHz
40
7
50
CC
) vs Clock Frequency (f
V
V
CC
CC
= 5.5V
60
= 4.5V
COMMERCIAL TEMPERATURE RANGE
70
S
)
3022 drw 03a
80
90