參數(shù)資料
型號(hào): HB52R168DB
廠商: Hitachi,Ltd.
英文描述: 128 MB Unbuffered SDRAM S.O.DIMM(128 MB 未緩沖同步DRAM S.O.DIMM)
中文描述: 128 MB的無(wú)緩沖內(nèi)存的SODIMM(128 MB的未緩沖同步內(nèi)存的SODIMM)
文件頁(yè)數(shù): 11/57頁(yè)
文件大小: 860K
代理商: HB52R168DB
HB52R168DB-F
11
Capacitance
(Ta = 25
°
C, V
CC
= 3.3 V
±
0.3 V)
Parameter
Symbol
Max
Unit
Notes
Input capacitance (Address)
Input capacitance (
RE
,
CE
,
W
,
S
, CKE)
C
IN
C
IN
C
IN
C
IN
C
I/O
90
pF
1, 2, 4
90
pF
1, 2, 4
Input capacitance (CK)
60
pF
1, 2, 4
Input capacitance (DQMB)
20
pF
1, 2, 4
Input/Output capacitance (DQ)
Notes: 1. Capacitance measured with Boonton Meter or effective capacitance measuring method.
2. Measurement condition: f = 1 MHz, 1.4 V bias, 200 mV swing.
3. DQMB = V
IH
to disable Data-out.
4. This parameter is sampled and not 100% tested.
20
pF
1, 2, 3, 4
AC Characteristics
(Ta = 0 to 65
°
C, V
CC
= 3.3 V
±
0.3 V, V
SS
= 0 V)
HB52R168DB
-10F/10FL
Parameter
Symbol
Min
Max
Unit
Notes
System clock cycle time
(
CE
latency = 2)
(
CE
latency = 3)
t
CK
t
CK
t
CKH
t
CKL
15
ns
1
15
CK0/CK1 high pulse width
5
ns
1
CK0/CK1 low pulse width
5
ns
1
Access time from CK0/CK1
(
CE
latency = 2)
(
CE
latency = 3)
t
AC
t
AC
t
OH
t
LZ
t
HZ
t
DS
t
DH
t
AS
t
AH
t
CES
t
CESP
t
CEH
9
ns
1, 2
9
Data-out hold time
2.5
ns
1, 2
CK0/CK1 to Data-out low impedance
2
ns
1, 2, 3
CK0/CK1 to Data-out high impedance
7
ns
1, 4
Data-in setup time
3
ns
1
Data in hold time
1.5
ns
1
Address setup time
3
ns
1
Address hold time
1.5
ns
1
CKE0 setup time
3
ns
1, 5
CKE0 setup time for power down exit
3
ns
1
CKE0 hold time
1.5
ns
1
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