參數(shù)資料
型號(hào): HB52E89EM
廠商: Hitachi,Ltd.
英文描述: 64 MB Unbuffered SDRAM DIMM(64MB 未緩沖同步DRAM DIMM)
中文描述: 64 MB的無(wú)緩沖SDRAM的內(nèi)存(64MB的未緩沖同步的DRAM內(nèi)存)
文件頁(yè)數(shù): 23/64頁(yè)
文件大小: 2741K
代理商: HB52E89EM
HB52E88EM-F, HB52E89EM-F, HB52E168EN-F, HB52E169EN-F
23
Capacitance (Ta = 25
°
C, V
CC
= 3.3 V
±
0.3 V) (HB52E168EN)
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.
Capacitance (Ta = 25
°
C, V
CC
= 3.3 V
±
0.3 V) (HB52E169EN)
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 65
°
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
105
90
68
38
50
23
22
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
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
112
97
70
40
50
27
22
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
Parameter
System clock cycle time
(CE latency = 2)
(CE latency = 3)
CK high pulse width
CK low pulse width
Access time from CK
(CE latency = 2)
(CE latency = 3)
Data-out hold time
HITACHI-
Symbol
PC100
Symbol
HB52E88EM/89EM/
168EN/169EN
-A6F/B6F
Min
Unit
Notes
1
Max
t
CK
t
CK
t
CKH
t
CKL
Tclk
Tclk
Tch
Tcl
10
10
3
3
ns
ns
ns
ns
1
1
1, 2
t
AC
t
AC
t
OH
Tac
Tac
Toh
3
6
6
ns
ns
ns
1, 2
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