參數(shù)資料
型號: HB52R1289E22
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?。?/td> 98K
代理商: HB52R1289E22
HB52R1289E22-A6B/B6B
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
HB52R1289E22
-A6B/B6B
Parameter
System clock cycle time
(CE latency = 3)
(CE latency = 4)
CK high pulse width
CK low pulse width
Access time from CK
(CE latency = 3)
(CE latency = 4)
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
HITACHI-
Symbol
t
CK
PC100
Symbol
Tclk
Min
10
Max
Unit
ns
Notes
1
t
CK
t
CKH
t
CKL
t
AC
Tclk
Tch
Tcl
Tac
10
4
4
7.5
ns
ns
ns
ns
1
1
1, 2
t
AC
t
OH
t
LZ
t
HZ
t
DS
t
DH
t
AS
t
AH
t
CES
t
CESP
Tac
Toh
2.1
1.1
2.9
3.4
2.6
3.0
2.6
2.6
7.5
7.5
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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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