參數(shù)資料
型號: μPD4564841
廠商: NEC Corp.
英文描述: 64M-bit Synchronous DRAM(64M同步動態(tài)RAM)
中文描述: 6400位同步DRAM(6400同步動態(tài)RAM)的
文件頁數(shù): 36/84頁
文件大?。?/td> 697K
代理商: ΜPD4564841
36
μ
PD4564441, 4564841, 4564163 for Rev. E
DC Characteristics 2 (Recommended Operating Conditions unless otherwise noted)
Parameter
Symbol
Test condition
MIN.
TYP.
MAX.
Unit
Note
Input leakage current
I
I (L)
0
V
I
V
CC
Q, V
CC
Q = V
CC
All other pins not under test = 0 V
1.0
+1.0
μ
A
Output leakage current
I
O (L)
0
V
O
V
CC
Q, D
OUT
is disabled
1.5
+1.5
μ
A
High level output voltage
V
OH
I
O
=
4 mA
2.4
V
Low level output voltage
V
OL
I
O
= +4 mA
0.4
V
AC Characteristics (Recommended Operating Conditions unless otherwise noted)
Test Conditions
AC measurements assume t
T
= 1 ns.
Reference level for measuring timing of input signals is 1.4 V. Transition times are measured between V
IH
and V
IL
.
If t
T
is longer than 1 ns, reference level for measuring timing of input signals is V
IH (MIN.)
and V
IL (MAX.)
.
An access time is measured at 1.4 V.
t
CK
t
CH
t
CL
2.0 V
1.4 V
0.8 V
CLK
2.0 V
1.4 V
0.8 V
Input
t
SETUP
t
HOLD
Output
t
AC
t
OH
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