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参数资料
| 型号： | 97SD3248RPMI |
| 厂商： | MAXWELL TECHNOLOGIES |
| 元件分类： | DRAM |
| 英文描述： | 32M X 48 SYNCHRONOUS DRAM, 6 ns, QFP132 |
| 封装： | STACK, QFP-132 |
| 文件页数： | 4/40页 |
| 文件大小： | 758K |
| 代理商： | 97SD3248RPMI |
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97SD3248
M
em
o
ry
12
All data sheets are subject to change without notice
2004 Maxwell Technologies
All rights reserved.
1.5Gb (8-Meg X 48-Bit X 4-Banks) SDRAM
03.25.04 Rev 1
Function Truth Table
The following function table shows the operations that are performed when each command is issued in each
mode of the SDRAM.
The following table assumes that CKE is High.
CURRENT STATE
CS
RAS
CAS
WE
ADDRESS
COMMAND
OPERATION
Precharge
H
x
DESL
Enter IDLE after t
RP
L
H
x
NOP
Enter IDLE after t
RP
L
H
L
H
BA, CA, A10
READ/READ A
ILLEGAL1
L
H
L
BA, CA, A10
WRIT/WRIT A
ILLEGAL1
L
H
BA, RA
ACTV
ILLEGAL1
L
H
L
BA, A10
PRE, PALL
NOP2
L
H
x
REF, SELF
ILLEGAL
L
MODE
MRS
ILLEGAL
Idle
H
x
DESL
NOP
LH
H
x
NOP
L
H
L
H
BA, CA, A10
READ/READ A
ILLEGAL3
L
H
L
BA, CA, A10
WRIT/WRIT A
ILLEGAL3
L
H
BA, RA
ACTV
Bank and row active
L
H
L
BA, A10
PRE, PALL
NOP
L
H
x
REF, SELF
Refresh
L
MODE
MRS
Mode register set
Row active
H
x
DESL
NOP
LH
H
x
NOP
L
H
L
H
BA, CA, A10
READ/READ A
Begin read
L
H
L
BA, CA, A10
WRIT/WRIT A
Begin write
L
H
BA, RA
ACTV
Other bank active
ILLEGAL on same bank4
L
H
L
BA, A10
PRE, PALL
Precharge
L
H
x
REF, SELF
ILLEGAL
L
MODE
MRS
ILLEGAL
相关PDF资料 |
PDF描述 |
|---|---|
| 97SD3248RPMK | 32M X 48 SYNCHRONOUS DRAM, 6 ns, QFP132 |
| 97U870AKIT | 97U SERIES, PLL BASED CLOCK DRIVER, 10 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), QCC40 |
| 97U870AH | 97U SERIES, PLL BASED CLOCK DRIVER, 10 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PBGA52 |
| 97U870AHIT | 97U SERIES, PLL BASED CLOCK DRIVER, 10 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PBGA52 |
| 97U870AKT | 97U SERIES, PLL BASED CLOCK DRIVER, 10 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), QCC40 |
相关代理商/技术参数 |
参数描述 |
|---|---|
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| AT91SAM9R64 | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:Thumb Microcontrollers |
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| AT91SAM9R64-CU | 功能描述:ARM微控制器 - MCU ARM Thumb MCU RoHS:否 制造商:STMicroelectronics 核心:ARM Cortex M4F 处理器系列:STM32F373xx 数据总线宽度:32 bit 最大时钟频率:72 MHz 程序存储器大小:256 KB 数据 RAM 大小:32 KB 片上 ADC:Yes 工作电源电压:1.65 V to 3.6 V, 2 V to 3.6 V, 2.2 V to 3.6 V 工作温度范围:- 40 C to + 85 C 封装 / 箱体:LQFP-48 安装风格:SMD/SMT |
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