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参数资料
| 型号： | AT49LW040-33TC |
| 厂商： | ATMEL CORP |
| 元件分类： | DRAM |
| 英文描述： | 8-megabit and 4-megabit Firmware Hub Flash Memory |
| 中文描述： | 512K X 8 FLASH 3V PROM, 11 ns, PDSO40 |
| 封装： | 10 X 20 MM, PLASTIC, MO-142CD, TSOP1-40 |
| 文件页数： | 5/34页 |
| 文件大小： | 465K |
| 代理商： | AT49LW040-33TC |
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5
AT49LW080/040
1966C–FLASH–03/02
I/O0 - I/O7
I/O
X
DATA INPUT/OUTPUTS:
These pins receive data and commands during
write cycles and transmit data during memory array and identifier code
read cycles. Data pins float to high-impedance when the chip is
deselected or outputs are disabled. Data is internally latched during a
write cycle.
OE
INPUT
X
OUTPUT ENABLE:
Gates the device’s outputs during a read cycle.
R/C
INPUT
X
ROW-COLUMN ADDRESS SELECT:
For the A/A Mux interface, this pin
determines whether the address pins are pointing to the row addresses,
A0 - A10, or to the column addresses, A11 - A18 (AT49LW040) or
A11 - A19 (AT49LW080).
WE
INPUT
X
WRITE ENABLE:
Controls writes to the array sectors. Addresses and
data are latched on the rising edge of the WE pulse.
V
PP
SUPPLY
X
X
SECTOR ERASE/PROGRAM POWER SUPPLY:
For erasing array
sectors or programming data. V
PP
= 3.3V or 12V. With V
PP
≤
V
PPLK
,
memory contents cannot be altered. Sector erase or program with an
invalid V
PP
(see DC Characteristics) produces spurious results and
should not be attempted. V
PP
may only be held at 12V for 80 hours over
the lifetime of the device.
V
CC
SUPPLY
X
X
DEVICE POWER SUPPLY:
Internal detection automatically configures
the device for optimized read performance. Do no float any power pins.
With V
CC
≤
V
LKO
, all write attempts to the flash memory are inhibited.
Device operations at invalid V
CC
voltages (see DC Characteristics)
produce spurious results and should not be attempted.
GND
SUPPLY
X
X
GROUND:
Do not float any ground pins.
V
CCa
SUPPLY
X
X
ANALOG POWER SUPPLY:
This supply should share the same system
supply as V
CC
.
GNDa
SUPPLY
X
X
ANALOG GROUND:
Should be tied to same plane as GND.
RFU
X
RESERVED FOR FUTURE USE:
These pins are reserved for future
generations of this product and should be connected accordingly. These
pins may be left disconnected or driven. If they are driven, the voltage
levels should meet V
IH
and V
IL
requirements.
A/A Mux = I/O[7:4]
NC
X
X
NO CONNECT:
Pin may be driven or floated. If it is driven, the voltage
levels should meet V
IH
and V
IL
. No connects appear only on the 40-lead
TSOP package.
RY/BY
OUTPUT
X
READY/BUSY:
Valid only in A/A Mux Mode. This output pin is a reflection
of bit 7 in the status register. This pin is used to determine sector erase or
program completion.
Table 1.
Pin Description (Continued)
Symbol
Type
Interface
Name and Function
FWH
A/A Mux
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AT49LW080-33JC | 功能描述:IC FLASH 8MBIT 33MHZ 32PLCC RoHS:否 类别:集成电路 (IC) >> 存储器 系列:- 标准包装:1 系列:- 格式 - 存储器:RAM 存储器类型:SDRAM 存储容量:256M（8Mx32） 速度:143MHz 接口:并联 电源电压:3 V ~ 3.6 V 工作温度:-40°C ~ 85°C 封装/外壳:90-VFBGA 供应商设备封装:90-VFBGA（8x13） 包装:托盘 其它名称:Q2841869 |
| AT49LW080-33JC SL383 | 功能描述:IC FLASH 8MBIT 33MHZ 32PLCC RoHS:否 类别:集成电路 (IC) >> 存储器 系列:- 标准包装:1 系列:- 格式 - 存储器:RAM 存储器类型:SDRAM 存储容量:256M（8Mx32） 速度:143MHz 接口:并联 电源电压:3 V ~ 3.6 V 工作温度:-40°C ~ 85°C 封装/外壳:90-VFBGA 供应商设备封装:90-VFBGA（8x13） 包装:托盘 其它名称:Q2841869 |
| AT49LW080-33JC-T | 功能描述:IC FLASH 8MBIT 33MHZ 32PLCC 制造商:microchip technology 系列:- 包装:带卷（TR） 零件状态:停產 存储器类型:非易失 存储器格式:闪存 技术:FLASH 存储容量:8Mb （1M x 8） 时钟频率:33MHz 写周期时间 - 字，页:300μs 存储器接口:并联 电压 - 电源:3 V ~ 3.6 V 工作温度:0°C ~ 85°C（TC） 安装类型:表面贴装 封装/外壳:32-LCC（J 形引线） 供应商器件封装:32-PLCC 基本零件编号:AT49LW080 标准包装:750 |
| AT49LW080-33JX | 功能描述:IC FLASH 8MBIT 33MHZ 32PLCC RoHS:是 类别:集成电路 (IC) >> 存储器 系列:- 标准包装:1 系列:- 格式 - 存储器:RAM 存储器类型:SDRAM 存储容量:256M（8Mx32） 速度:143MHz 接口:并联 电源电压:3 V ~ 3.6 V 工作温度:-40°C ~ 85°C 封装/外壳:90-VFBGA 供应商设备封装:90-VFBGA（8x13） 包装:托盘 其它名称:Q2841869 |
| AT49LW080-33JX SL383 | 功能描述:IC FLASH 8MBIT 33MHZ 32PLCC RoHS:是 类别:集成电路 (IC) >> 存储器 系列:- 标准包装:1 系列:- 格式 - 存储器:RAM 存储器类型:SDRAM 存储容量:256M（8Mx32） 速度:143MHz 接口:并联 电源电压:3 V ~ 3.6 V 工作温度:-40°C ~ 85°C 封装/外壳:90-VFBGA 供应商设备封装:90-VFBGA（8x13） 包装:托盘 其它名称:Q2841869 |
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