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參數(shù)資料
| 型號： | 72845LB25PF8 |
| 廠商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分類： | FIFO |
| 英文描述： | 4K X 18 BI-DIRECTIONAL FIFO, 15 ns, PQFP128 |
| 封裝： | TQFP-128 |
| 文件頁數(shù)： | 22/26頁 |
| 文件大?。?/td> | 334K |
| 代理商： | 72845LB25PF8 |
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5
COMMERCIAL AND INDUSTRIAL
TEMPERATURE RANGES
IDT72805LB/72815LB/72825LB/72835LB/72845LB CMOS Dual SyncFIFOTM
256 x 18, 512 x 18, 1,024 x 18, 2,048 x 18 and 4,096 x 18
RECOMMENDED DC OPERATING
CONDITIONS
NOTE:
1. 1.5V undershoots are allowed for 10ns once per cycle.
Symbol
Rating
Commercial
Unit
VTERM
Terminal Voltage
–0.5 to +7.0
V
with respect to GND
TSTG
Storage
–55 to +125
°C
Temperature
IOUT
DC Output Current
–50 to +50
mA
Symbol
Parameter
(1)
Conditions
Max.
Unit
CIN
(2)
Input
VIN = 0V
10
pF
Capacitance
COUT(1,2)
Output
VOUT = 0V
10
pF
Capacitance
CAPACITANCE (TA = +25
°C, f = 1.0MHz)
NOTES:
1. With output deselected, (
OE
≥ VIH).
2. Characterized values, not currently tested.
IDT72805LB
IDT72815LB
IDT72825LB
IDT72835LB
IDT72845LB
Com’l & Ind’l(1)
tCLK = 10, 15, 25 ns
Symbol
Parameter
Min.
Typ.
Max.
Unit
ILI(2)
Input Leakage Current (any input)
–1
—
1
A
ILO(3)
Output Leakage Current
–10
—
10
A
VOH
Output Logic “1” Voltage, IOH = –2 mA
2.4
—
V
VOL
Output Logic “0” Voltage, IOL = 8 mA
—
0.4
V
ICC1(4,5,6)
Active Power Supply Current
—
100
mA
ICC2(4,7)
Standby Current
—
10
mA
DC ELECTRICAL CHARACTERISTICS
(Commercial: VCC = 5V ± 10%, TA = 0
°C to +70°C; Industrial: VCC = 5V ± 10%, TA = -40°C to +85°C)
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 IDT72835LB/72845LB 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.
ABSOLUTE MAXIMUM RATINGS
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
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.
Symbol
Parameter
Min.
Typ.
Max.
Unit
VCC
Supply Voltage (Com’l/Ind’l)
4.5
5.0
5.5
V
GND
Supply Voltage (Com’l/Ind’l)
0
V
VIH
Input High Voltage (Com’l/Ind’l)
2.0
V
VIL(1)
Input Low Voltage (Com’l/Ind’l)
0.8
V
TA
Operating Temperature
0
70
°C
Commercial
TA
Operating Temperature
0
85
°C
Industrial
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