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參數(shù)資料
| 型號： | AT27LV256A |
| 廠商： | Atmel Corp. |
| 英文描述： | 32K x 8 Low-voltage OTP EPROM(32K x 8低電壓一次可編程EPROM) |
| 中文描述： | 32K的× 8低壓檢察官辦公室存儲器（32K的× 8低電壓一次可編程存儲器） |
| 文件頁數(shù)： | 2/12頁 |
| 文件大?。?/td> | 284K |
| 代理商： | AT27LV256A |
AT27LV256A
2
making it ideal for fast, portable systems using battery
power.
Atmel
’
s innovative design techniques provide fast speeds
that rival 5V parts while keeping the low power consump-
tion of a 3.3V supply. At V
CC
= 3.0V, any byte can be
accessed in less than 55 ns. With a typical power dissipa-
tion of only 18 mW at 5 MHz and V
CC
= 3.3V, the
AT27LV256A consumes less than one fifth the power of a
standard 5V EPROM.
Standby mode supply current is typically less than 1
μ
A at
3.3V.
The AT27LV256A is available in industry standard JEDEC-
approved one-time programmable (OTP) plastic PLCC,
SOIC and TSOP packages. All devices feature two-line
control (CE, OE) to give designers the flexibility to prevent
bus contention.
The AT27LV256A operating with V
CC
at 3.0V produces TTL
level outputs that are compatible with standard TTL logic
devices operating at V
CC
= 5.0V. The device is also capa-
ble of standard 5-volt operation making it ideally suited for
dual supply range systems or card products that are plug-
gable in both 3-volt and 5-volt hosts.
Atmel
’
s AT27LV256A has additional features to ensure
high quality and efficient production use. The Rapid
Pro-
gramming Algorithm reduces the time required to program
the part and guarantees reliable programming. Program-
ming time is typically only 100
μ
s/byte. The Integrated
Product Identification Code electronically identifies the
device and manufacturer. This feature is used by industry
standard programming equipment to select the proper pro-
gramming algorithms and voltages. The AT27LV256A pro-
grams exactly the same way as a standard 5V AT27C256R
and uses the same programming equipment.
System Considerations
Switching between active and standby conditions via the
Chip Enable pin may produce transient voltage excursions.
Unless accommodated by the system design, these tran-
sients may exceed data sheet limits, resulting in device
non-conformance. At a minimum, a 0.1
μ
F high frequency,
low inherent inductance, ceramic capacitor should be uti-
lized for each device. This capacitor should be connected
between the V
CC
and Ground terminals of the device, as
close to the device as possible. Additionally, to stabilize the
supply voltage level on printed circuit boards with large
EPROM arrays, a 4.7
μ
F bulk electrolytic capacitor should
be utilized, again connected between the V
CC
and Ground
terminals. This capacitor should be positioned as close as
possible to the point where the power supply is connected
to the array.
Block Diagram
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| AT27LV512A | High Speed CMOS Logic Quad Bilateral Switches 14-PDIP -55 to 125 |
| AT27LV512A-12 | High Speed CMOS Logic Quad Bilateral Switches 14-PDIP -55 to 125 |
| AT27LV512A-12JC | High Speed CMOS Logic Quad Bilateral Switches 14-SOIC -55 to 125 |
| AT27LV512A-12JI | High Speed CMOS Logic Quad Bilateral Switches 14-SOIC -55 to 125 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| AT27LV256A-12JC | 功能描述:可擦除可編程ROM 256k bit RoHS:否 制造商:Maxim Integrated 類型: 存儲容量:1024 bit 組織:1 K x 1 接口類型: 工作電流:5 uA 編程電壓: 工作電源電壓:2.8 V to 6 V 最大工作溫度:+ 85 C 安裝風格:Through Hole 封裝 / 箱體:TO-92 |
| AT27LV256A-12JI | 功能描述:IC OTP 256KBIT 120NS 32PLCC RoHS:否 類別:集成電路 (IC) >> 存儲器 系列:- 標準包裝:32 系列:- 格式 - 存儲器:閃存 存儲器類型:FLASH 存儲容量:1M (128K x 8) 速度:120ns 接口:并聯(lián) 電源電壓:2.7 V ~ 3.6 V 工作溫度:0°C ~ 70°C 封裝/外殼:32-LCC（J 形引線） 供應商設備封裝:32-PLCC 包裝:管件 其它名稱:AT49BV00112JC |
| AT27LV256A-12RC | 功能描述:IC OTP 256KBIT 120NS 28SOIC RoHS:否 類別:集成電路 (IC) >> 存儲器 系列:- 標準包裝:32 系列:- 格式 - 存儲器:閃存 存儲器類型:FLASH 存儲容量:1M (128K x 8) 速度:120ns 接口:并聯(lián) 電源電壓:2.7 V ~ 3.6 V 工作溫度:0°C ~ 70°C 封裝/外殼:32-LCC（J 形引線） 供應商設備封裝:32-PLCC 包裝:管件 其它名稱:AT49BV00112JC |
| AT27LV256A-12RI | 功能描述:IC OTP 256KBIT 120NS 28SOIC RoHS:否 類別:集成電路 (IC) >> 存儲器 系列:- 標準包裝:32 系列:- 格式 - 存儲器:閃存 存儲器類型:FLASH 存儲容量:1M (128K x 8) 速度:120ns 接口:并聯(lián) 電源電壓:2.7 V ~ 3.6 V 工作溫度:0°C ~ 70°C 封裝/外殼:32-LCC（J 形引線） 供應商設備封裝:32-PLCC 包裝:管件 其它名稱:AT49BV00112JC |
| AT27LV256A-12TC | 功能描述:IC OTP 256KBIT 120NS 28TSOP RoHS:否 類別:集成電路 (IC) >> 存儲器 系列:- 標準包裝:32 系列:- 格式 - 存儲器:閃存 存儲器類型:FLASH 存儲容量:1M (128K x 8) 速度:120ns 接口:并聯(lián) 電源電壓:2.7 V ~ 3.6 V 工作溫度:0°C ~ 70°C 封裝/外殼:32-LCC（J 形引線） 供應商設備封裝:32-PLCC 包裝:管件 其它名稱:AT49BV00112JC |
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