參數(shù)資料
型號: Q67100-Q759
廠商: SIEMENS AG
英文描述: 4M x 1-Bit Dynamic RAM
中文描述: 4米× 1位動態(tài)隨機存儲器
文件頁數(shù): 8/53頁
文件大?。?/td> 418K
代理商: Q67100-Q759
HYB 39S64400/800/160BT(L)
64-MBit Synchronous DRAM
Data Book
8
12.99
DQM
LDQM
UDQM
Input
Pulse
Active
High
The Data Input/Output mask places the DQ buffers in a
high impedance state when sampled high. In Read mode,
DQM has a latency of two clock cycles and controls the
output buffers like an output enable. In Write mode, DQM
has a latency of zero and operates as a word mask by
allowing input data to be written if it is low but blocks the
write operation if DQM is high.
One DQM input it present in
×
4 and
×
8 SDRAMs, LDQM
and UDQM controls the lower and upper bytes in
×
16
SDRAMs.
V
DD
V
SS
Supply
Power and ground for the input buffers and the core logic.
V
DDQ
V
SSQ
Supply –
Isolated power supply and ground for the output buffers to
provide improved noise immunity.
V
REF
Input
Level
Reference voltage for SDRAM versions supporting SSTL
interface
Signal Pin Description
(cont’d)
Pin
Type
Signal Polarity Function
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
Q67100-Q762 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:1M x 4-BIT DYNAMIC RAM LOW POWER 1M x 4-BIT DYNAMIC RAM
Q67100-Q764 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:1M x 4-Bit Dynamic RAM Low Power 1M x 4-Bit Dynamic RAM
Q67100-Q849 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:512kx8-Bit Dynamic RAM
Q67100-Q850 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:512kx8-Bit Dynamic RAM
Q67100-Q851 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:512kx8-Bit Dynamic RAM