參數(shù)資料
型號: HB52RF1289E2
廠商: Hitachi,Ltd.
英文描述: 1 GB Registered SDRAM DIMM(1GB 寄存同步DRAM DIMM)
中文描述: 1 GB的注冊SDRAM的內(nèi)存(1GB的寄存同步的DRAM內(nèi)存)
文件頁數(shù): 15/21頁
文件大小: 95K
代理商: HB52RF1289E2
HB52RF1289E2-75B
15
Capacitance (Ta = 25
°
C, V
CC
= 3.3 V
±
0.3 V)
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.
AC Characteristics (Ta = 0 to 55
°
C, V
CC
= 3.3 V
±
0.3 V, V
SS
= 0 V)
Parameter
Input capacitance (Address)
Input capacitance (RE, CE, W)
Input capacitance (CKE)
Input capacitance (S)
Input capacitance (CK)
Input capacitance (DQMB)
Input/Output capacitance (DQ)
Symbol
C
I1
C
I2
C
I3
C
I4
C
I5
C
I6
C
I/O1
Max
25
25
45
20
45
20
25
Unit
pF
pF
pF
pF
pF
pF
pF
Notes
1, 2, 4
1, 2, 4
1, 2, 4
1, 2, 4
1, 2, 4
1, 2, 4
1, 2, 3, 4
HB52RF1289E2-75B
Parameter
System clock cycle time
CK high pulse width
CK low pulse width
Access time from CK
Data-out hold time
CK to Data-out low impedance
CK to Data-out high impedance
Data-in setup time
Data in hold time
Address setup time
Address hold time
CKE setup time
CKE setup time for power down exit
HITA-
CHISym-
bol
t
CK
t
CKH
t
CKL
t
AC
t
OH
t
LZ
t
HZ
t
DS
t
DH
t
AS
t
AH
t
CES
t
CESP
PC100
Symbol
Tclk
Tch
Tcl
Tac
Toh
Min
7.5
3.4
3.4
1.8
1.1
2.4
1.7
1.9
1.5
1.9
1.9
Max
6.3
6.3
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Notes
1
1
1
1, 2
1, 2
1, 2, 3
1, 4
1
1
1
1, 5
1, 5
1
Tsi
Thi
Tsi
Thi
Tsi
Tpde
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