參數(shù)資料
型號: HM62G18256
廠商: Hitachi,Ltd.
英文描述: 4M Synchronous Fast Static RAM (256k-words ×18-bits)(4M同步快速靜態(tài)RAM(256k字 ×18位))
中文描述: 4分同步快速靜態(tài)存儲器(256k -字× 18位)(4分同步快速靜態(tài)隨機存儲器(256k字× 18位))
文件頁數(shù): 13/24頁
文件大小: 194K
代理商: HM62G18256
HM62G18256 Series
13
Input Capacitance
(Ta = 25
°
C, f = 1 MHz)
Parameter
Symbol
Min
Max
Unit
Pin Name
Input Capacitance
C
IN
4
pF
SAn,
SS
,
SWE
,
SWEx
Clock Input Capacitance C
CLK
I/O Capacitance
Note : This parameter is sampled and not 100% tested.
7
pF
K,
K
,
G
C
IO
5
pF
DQxn
AC Test Conditions
Parameter
Symbol
Conditions
Unit
Note
Input and output timing reference levels
V
REF
V
IL
, V
IH
tr, tf
0.75
V
Input signal amplitude
0.25 to 1.25
V
Input rise / fall time
0.5 (10% to 90%)
ns
Clock input timing reference level
Differential Cross Point
V
DIF
to Clock
V
CM
to Clock
Output Loading conditions
Note : Measurement condition is the minimum impedance push pull output buffer mode, I
OH
=-6mA,I
OL
=6mA
0.75
V
0.75
V
See Figures
50
16.7
16.7
50
5pF
DQ
0.75V
50
16.7
50
5pF
0.75V
0.75V
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