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參數(shù)資料
| 型號： | 70P249L65BYGI |
| 廠商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分類： | SRAM |
| 英文描述： | 4K X 16 DUAL-PORT SRAM, 40 ns, PBGA100 |
| 封裝： | 0.50 MM PITCH, GREEN, BGA-100 |
| 文件頁數(shù)： | 14/22頁 |
| 文件大?。?/td> | 146K |
| 代理商： | 70P249L65BYGI |
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IDT70P269/259/249L
Low Power 16K/8K/4K x 16 Dual-Port Static RAM
Industrial Temperature Range
OCTOBER 16, 2008
Input Read Register
The Input Read Register (IRR) of the IDT70P269/259/249 captures
thestatusoftwoexternalbinaryinputdevicesconnectedtotheInputRead
pins (e.g. DIP switches). The contents of the IRR are read as a standard
memory access to address x0000 from either port and the data is output
via the standard I/Os (Truth Table V). During Input Register reads I/O0
- I/O1 are valid bits and I/O2 - I/O15 are read from the memory. Writes to
addressx0000arenormalmemoryoperation.When
SFEN=VIH,theIRR
is inactive and address x0000 can be used as part of the main memory.
The IRR inputs will be 1.8V/2.5V LVCMOS or 3.0V LVTTL, depending
on the core voltage supply.Refer to Truth Table V for Input Read Register
operation.
Output Drive Register
The Output Drive Register (ODR) of the IDT70P269/259/249 deter-
mines the state of up to five external binary-state devices by providing a
path to VSSfor the external circuit. The five external devices supported by
theODRcanoperateatdifferentvoltages(1.5V <VSUPPLY <3.5V),butthe
combinedcurrentofthedevicesmustnotexceed40mA(8mAIMAXforeach
external device). The status of the ODR bits is set using standard write
accessesfromeitherporttoaddressx0001witha“1”correspondingto“on“
and a “0” corresponding to “off”. The status of the ODR bits can also be
read(withoutchangingthestatusofthebits)viaastandardreadtoaddress
x0001. When
SFEN = VIL, the ODR is active and address x0001 is not
available for standard memory operations. When
SFEN = VIH, the ODR
is inactive and address x0001 can be used as part of the main memory.
During reads and writes to the ODR I/O0 - I/O4 are valid bits and I/O5 -
I/O15 will not affect the ODR function but they will read from or write to the
memory. Refer to Truth Table VI for Output Drive Register operation.
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| 70P249L65BYGI8 | 功能描述:靜態(tài)隨機存取存儲器 Low Power Dual-Port RAM IC RoHS:否 制造商:IDT 存儲容量: 組織: 訪問時間: 電源電壓-最大: 電源電壓-最小: 最大工作電流: 最大工作溫度: 最小工作溫度: 安裝風(fēng)格: 封裝 / 箱體: 封裝: |
| 70P249L90BYGI | 功能描述:IC SRAM 64KBIT 90NS 100FBGA 制造商:idt, integrated device technology inc 系列:- 包裝:托盤 零件狀態(tài):過期 格式 - 存儲器:RAM 存儲器類型:SRAM - 雙端口，異步 存儲容量:64K（4K x 16） 速度:90ns 接口:并聯(lián) 電壓 - 電源:1.7 V ~ 1.9 V 工作溫度:-40°C ~ 85°C（TA） 封裝/外殼:100-TFBGA 供應(yīng)商器件封裝:100-CABGA（6x6） 標準包裝:90 |
| 70P249L90BYGI8 | 功能描述:靜態(tài)隨機存取存儲器 Low Power Dual-Port RAM IC RoHS:否 制造商:IDT 存儲容量: 組織: 訪問時間: 電源電壓-最大: 電源電壓-最小: 最大工作電流: 最大工作溫度: 最小工作溫度: 安裝風(fēng)格: 封裝 / 箱體: 封裝: |
| 70P24L20BF | 制造商:Integrated Device Technology Inc 功能描述:SRAM ASYNC DUAL 1.8V 64KBIT 4K X 16 20NS 100BGA - Bulk |
| 70P24L20BF8 | 制造商:Integrated Device Technology Inc 功能描述:SRAM ASYNC DUAL 1.8V 64KBIT 4K X 16 20NS 100BGA - Tape and Reel |
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