參數(shù)資料
型號: HB52RD328DC
廠商: Hitachi,Ltd.
英文描述: 256 MB Unbuffered SDRAM S.O.DIMM(256 MB 未緩沖同步DRAM S.O.DIMM)
中文描述: 256 MB的無緩沖內(nèi)存的SODIMM(256 MB的未緩沖同步內(nèi)存的SODIMM)
文件頁數(shù): 17/68頁
文件大?。?/td> 885K
代理商: HB52RD328DC
HB52RD328DC-F
17
Notes: 1. I
depends on output load condition when the device is selected. I
CC
(max) is specified at the
output open condition.
2. One bank operation.
3. Input signals are changed once per one clock.
4. Input signals are changed once per two clocks.
5. Input signals are changed once per four clocks.
6. After power down mode, CLK operating current.
7. After power down mode, no CLK operating current.
8. After self refresh mode set, self refresh current.
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
150
pF
1, 2, 4
150
pF
1, 2, 4
Input capacitance (CK)
90
pF
1, 2, 4
Input capacitance (DQMB)
30
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 Dout.
4. This parameter is sampled and not 100% tested.
30
pF
1, 2, 3, 4
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