參數(shù)資料
型號: HM5212805F
廠商: Hitachi,Ltd.
英文描述: 128M LVTTL interface SDRAM(128M LVTTL 接口同步DRAM)
中文描述: 128M的LVTTL接口的SDRAM(128M的LVTTL接口同步的DRAM)
文件頁數(shù): 47/63頁
文件大?。?/td> 858K
代理商: HM5212805F
HM5212165F/HM5212805F-75/A60/B60
47
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.
9. Input signals are V
IH
or V
IL
fixed.
Capacitance
(Ta = 25
°
C, V
CC
, V
CC
Q = 3.3 V
±
0.3 V)
Parameter
Symbol
Min
Max
Unit
Notes
Input capacitance (CLK)
C
I1
C
I2
C
O
2.5
7
pF
1, 2, 4
Input capacitance (Input)
2.5
7
pF
1, 2, 4
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. DQM, DQMU/DQML = V
IH
to disable Dout.
4. This parameter is sampled and not 100% tested.
4
8
pF
1, 2, 3, 4
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HM5212165F 128M LVTTL interface SDRAM(128M LVTTL 接口同步DRAM)
HM5225165BTT-75 256M LVTTL interface SDRAM 133 MHz/100 MHz 4-Mword 】 16-bit 】 4-bank/8-Mword 】 8-bit 】 4-bank /16-Mword 】 4-bit 】 4-bank PC/133, PC/100 SDRAM
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HM5225405B-B6 256M LVTTL interface SDRAM 133 MHz/100 MHz 4-Mword 】 16-bit 】 4-bank/8-Mword 】 8-bit 】 4-bank /16-Mword 】 4-bit 】 4-bank PC/133, PC/100 SDRAM
HM5225405BLTT-75 POT 20K OHM 9MM HORZ NO BUSHING
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參數(shù)描述
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HM5212805FLTD-B60 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:128M LVTTL interface SDRAM 133 MHz/100 MHz 2-Mword X 16-bit X 4-bank/4-Mword X 8-bit X 4-bank PC/133, PC/100 SDRAM
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