IDT72805LB View Datasheet(PDF) - Integrated Device Technology
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Description
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IDT72805LB
Integrated Device Technology
IDT72805LB Datasheet PDF : 26 Pages
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IDT72805LB/72815LB/72825LB/72845LB CMOS Dual SyncFIFOTM
256 x 18, 512 x 18, 1,024 x 18, and 4,096 x 18
COMMERCIAL AND INDUSTRIAL
TEMPERATURE RANGES
ABSOLUTE MAXIMUM RATINGS
RECOMMENDED DC OPERATING
Symbol
Rating
Commercial
Unit CONDITIONS
VTERM
Terminal Voltage
with respect to GND
–0.5 to +7.0
V
Symbol
Parameter
Min. Typ. Max. Unit
VCC Supply Voltage (Com’l/Ind’l)
4.5 5.0 5.5
V
TSTG
Storage
Temperature
–55 to +125
°C
GND Supply Voltage (Com’l/Ind’l)
0
0
0
V
IOUT
DC Output Current
–50 to +50
mA
VIH Input High Voltage (Com’l/Ind’l) 2.0
⎯⎯
V
VIL(1) Input Low Voltage (Com’l/Ind’l)
⎯
⎯ 0.8
V
NOTE:
1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause
permanent damage to the device. This is a stress rating only and functional operation of
TA OperatingTemperature
Commercial
0
⎯ 70 °C
the device at these or any other conditions above those indicated in the operational
sections of this specification is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect reliability.
TA OperatingTemperature
Industrial
-40 ⎯ 85 °C
NOTE:
1. 1.5V undershoots are allowed for 10ns once per cycle.
DC ELECTRICAL CHARACTERISTICS
(Commercial: VCC = 5V ± 10%, TA = 0°C to +70°C; Industrial: VCC = 5V ± 10%, TA = -40°C to +85°C)
Symbol
Parameter
IDT72805LB
IDT72815LB
IDT72825LB
IDT72845LB
Com’l & Ind’l(1)
tCLK = 10, 15, 25 ns
Min.
Typ.
Max.
Unit
ILI(2)
Input Leakage Current (any input)
ILO(3)
Output Leakage Current
VOH
Output Logic “1” Voltage, IOH = –2 mA
VOL
Output Logic “0” Voltage, IOL = 8 mA
–1
—
–10
—
2.4
—
—
—
1
µA
10
µA
—
V
0.4
V
ICC1(4,5,6)
Active Power Supply Current
—
—
100
mA
ICC2(4,7)
Standby Current
—
—
10
mA
NOTES:
1. Industrial Temperature Range Product for the 15ns speed grade is available as a standard device.
2. Measurements with 0.4 ≤ VIN ≤ VCC.
3. OE ≥ VIH, 0.4 ≤ VOUT ≤ VCC.
4. Tested with outputs open (IOUT = 0).
4. RCLK and WCLK toggle at 20 MHZ and data inputs switch at 10 MHz.
5. For the IDT72805LB/72815LB/72825LB the typical ICC1 = 2[1.81 + 1.12*fS + 0.02*CL*fS] (in mA);
for the IDT72845LB the typical ICC1 = 2[2.85 + 1.30*fS + 0.02*CL*fS] (in mA).
These equations are valid under the following conditions:
VCC = 5V, TA = 25°C, fS = WCLK frequency = RCLK frequency (in MHz, using TTL levels), data switching at fS/2, CL = capacitive load (in pF).
7. All Inputs = VCC - 0.2V or GND + 0.2V, except RCLK and WCLK, which toggle at 20 MHz.
CAPACITANCE (TA = +25°C, f = 1.0MHz)
Symbol Parameter(1)
Conditions
Max.
CIN(2)
Input
VIN = 0V
10
Capacitance
COUT(1,2) Output
VOUT = 0V
10
Capacitance
NOTES:
1. With output deselected, (OE ≥ VIH).
2. Characterized values, not currently tested.
Unit
pF
pF
5
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