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參數(shù)資料
型號(hào): Q67100-Q542
廠商: SIEMENS AG
英文描述: 256 K x 4-Bit Dynamic RAM Low Power 256 K x 4-Bit Dynamic RAM
中文描述: 256畝× 4位動(dòng)態(tài)隨機(jī)存儲(chǔ)器的低功耗256畝× 4位動(dòng)態(tài)隨機(jī)存儲(chǔ)器
文件頁(yè)數(shù): 8/53頁(yè)
文件大小: 418K
代理商: Q67100-Q542
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
相關(guān)PDF資料
PDF描述
Q67100-Q543 256 K x 4-Bit Dynamic RAM Low Power 256 K x 4-Bit Dynamic RAM
Q67100-Q607 256 K x 4-Bit Dynamic RAM Low Power 256 K x 4-Bit Dynamic RAM
Q67100-Q608 256 K x 4-Bit Dynamic RAM Low Power 256 K x 4-Bit Dynamic RAM
Q67100-Q651 1M x 36-Bit Dynamic RAM Module (2M x 18-Bit Dynamic RAM Module)
Q67100-Q727 256k x 16-Bit Dynamic RAM
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
Q67100-Q543 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:256 K x 4-Bit Dynamic RAM Low Power 256 K x 4-Bit Dynamic RAM
Q67100-Q607 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:256 K x 4-Bit Dynamic RAM Low Power 256 K x 4-Bit Dynamic RAM
Q67100-Q608 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:256 K x 4-Bit Dynamic RAM Low Power 256 K x 4-Bit Dynamic RAM
Q67100-Q651 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:1M x 36-Bit Dynamic RAM Module (2M x 18-Bit Dynamic RAM Module)
Q67100-Q727 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:256k x 16-Bit Dynamic RAM
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