參數(shù)資料
型號(hào)： MCM63L836A
廠商： Motorola, Inc.
英文描述： 8MBit Synchronous Late Write Fast Static RAM(8M位同步遲寫(xiě)快速靜態(tài)RAM)
中文描述： 8MBit快速同步后寫(xiě)入靜態(tài)存儲(chǔ)器（800萬(wàn)位同步遲寫(xiě)快速靜態(tài)內(nèi)存）
文件頁(yè)數(shù)： 9/20頁(yè)
文件大小： 412K
代理商： MCM63L836A
MCM63L836A
MCM63L918A
9
MOTOROLA FAST SRAM
AC INPUT CHARACTERISTICS
Parameter
Symbol
Min
Max
Notes
AC Input Logic High (See Figure 4)
VIH (ac)
VIL (ac)
Vref (ac)
Vdif (ac)
Vref + 200 mV
—
—
1
AC Input Logic Low (See Figures 2 and 4)
Vref – 200 mV
5% Vref (dc)
VDDQ + 600 mV
2
Input Reference Peak–to–Peak AC Voltage
—
3
Clock Input Differential Voltage
400 mV
4
NOTES:
1. Inputs may overshoot to VDD + 1 V for 30% tKHKH or 1.5 ns, whichever is smaller, and VDD + 1.5 V peak overshoot.
2. Inputs may undershoot to VSS – 1 V for 30% tKHKH or 1.5 ns, whichever is smaller and VSS – 1.5 V peak undershoot.
3. Although considerable latitude in the selection of the nominal dc value (i.e., rms value) of Vref is supported, the peak–to–peak ac compo-
nent superimposed on Vref may not exceed 5% of the dc component of Vref.
4. Minimum instantaneous differential input voltage required for differential input clock operation.
VOH
VSS
50%
100%
20% tKHKH
Figure 2. Undershoot Voltage
CROSSING POINT
VDDQ
VSS
VTR
VDIF
VCP
VCM*
Figure 3. Differential Inputs/Common Mode Input Voltage
* VCM, the Common Mode Input Voltage, equals VTR – [(VTR – VCP)/2].
VIH(ac)
Vref
VIL(ac)
Figure 4. AC Input Conditions
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