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參數(shù)資料
| 型號： | GS8662Q18BD-357 |
| 廠商： | GSI TECHNOLOGY |
| 元件分類： | SRAM |
| 英文描述： | 4M X 18 STANDARD SRAM, 0.45 ns, PBGA165 |
| 封裝： | 15 X 13 MM, 1 MM PITCH, FPBGA-165 |
| 文件頁數(shù)： | 10/36頁 |
| 文件大?。?/td> | 850K |
| 代理商： | GS8662Q18BD-357 |
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Thermal Impedance
Package
Test PCB
Substrate
θ JA (C°/W)
Airflow = 0 m/s
θ JA (C°/W)
Airflow = 1 m/s
θ JA (C°/W)
Airflow = 2 m/s
θ JB (C°/W)
θ JC (C°/W)
165 BGA
4-layer
22.300
18.572
17.349
9.292
2.310
Notes:
1. Thermal Impedance data is based on a number of of samples from mulitple lots and should be viewed as a typical number.
2. Please refer to JEDEC standard JESD51-6.
3. The characteristics of the test fixture PCB influence reported thermal characteristics of the device. Be advised that a good thermal path to
the PCB can result in cooling or heating of the RAM depending on PCB temperature.
GS8662Q08/09/18/36BD-357/333/300/250/200
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
Rev: 1.02 3/2011
18/36
2011, GSI Technology
HSTL I/O DC Input Characteristics
Parameter
Symbol
Min
Max
Units
Notes
DC Input Logic High
VIH (dc)
VREF + 0.1
VDDQ + 0.3
V
1
DC Input Logic Low
VIL (dc)
–0.3
VREF – 0.1
V
1
Notes:
1. Compatible with both 1.8 V and 1.5 V I/O drivers.
2. These are DC test criteria. DC design criteria is VREF ± 50 mV. The AC VIH/VIL levels are defined separately for measuring timing
parameters.
3. VIL (Min)DC = –0.3 V, VIL(Min)AC = –1.5 V (pulse width ≤ 3 ns).
4. VIH (Max)DC = VDDQ + 0.3 V, VIH(Max)AC = VDDQ + 0.85 V (pulse width ≤ 3 ns).
HSTL I/O AC Input Characteristics
Parameter
Symbol
Min
Max
Units
Notes
AC Input Logic High
VIH (ac)
VREF + 200
—
mV
2,3
AC Input Logic Low
VIL (ac)
—
VREF – 200
mV
2,3
VREF Peak-to-Peak AC Voltage
VREF (ac)
—
5% VREF (DC)
mV
1
Notes:
1. The peak-to-peak AC component superimposed on VREF may not exceed 5% of the DC component of VREF.
2. To guarantee AC characteristics, VIH,VIL, Trise, and Tfall of inputs and clocks must be within 10% of each other.
3. For devices supplied with HSTL I/O input buffers. Compatible with both 1.8 V and 1.5 V I/O drivers.
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