参数资料
| 型号： | AT27C256R-70JU |
| 厂商： | Atmel |
| 文件页数： | 1/13页 |
| 文件大小： | 0K |
| 描述： | IC OTP 256KBIT 70NS 32PLCC |
| 标准包装： | 32 |
| 格式 - 存储器： | EPROMs |
| 存储器类型： | EPROM OTP |
| 存储容量： | 256K (32K x 8) |
| 速度： | 70ns |
| 接口： | 并联 |
| 电源电压： | 4.5 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 32-LCC（J 形引线） |
| 供应商设备封装： | 32-PLCC |
| 包装： | 管件 |
| 产品目录页面： | 1457 (CN2011-ZH PDF) |
Features
? Fast read access time – 45ns
? Low-power CMOS operation
– 100μA max standby
– 20mA max active at 5MHz
?
JEDEC standard packages
– 28-lead PDIP
– 32-lead PLCC
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?
?
?
?
?
?
5V ? ± ? 10% supply
High reliability CMOS technology
– 2,000V ESD protection
– 200mA latchup immunity
Rapid programming algorithm – 100μs/byte (typical)
CMOS- and TTL-compatible inputs and outputs
Integrated product identification code
Industrial and automotive temperature ranges
Green (Pb/halide-free) packaging option
256K (32K x 8)
One-time
Programmable,
Read-only Memory
Atmel AT27C256R
1.
Description
The Atmel ? AT27C256R is a low-power, high-performance, 262,144-bit, one-time pro-
grammable, read-only memory (OTP EPROM) organized as 32K by 8 bits. It requires only
one 5V power supply in normal read mode operation. Any byte can be accessed in less than
45ns, eliminating the need for speed reducing WAIT states on high-performance micropro-
cessor systems.
The Atmel scaled CMOS technology provides low active power consumption and fast pro-
gramming. Power consumption is typically only 8mA in active mode and less than 10μA in
standby mode.
The AT27C256R is available in a choice of industry-standard, JEDEC-approved, one-time
programmable (OTP) PDIP and PLCC packages. All devices feature two-line control (CE,
OE) to give designers the flexibility to prevent bus contention.
With 32K byte storage capability, the AT27C256R allows firmware to be stored reliably and
to be accessed by the system without the delays of mass storage media.
The AT27C256R has additional features to ensure high quality and efficient production use.
The rapid programming algorithm reduces the time required to program the part and guar-
antees reliable programming. Programming time is typically only 100μs/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.
0014O–EPROM–10/11
相关PDF资料 |
PDF描述 |
|---|---|
| A3P400-FG144 | IC FPGA 1KB FLASH 400K 144-FBGA |
| AT27C256R-70PU | IC OTP 256KBIT 70NS 28DIP |
| ESC31DTEN | CONN EDGECARD 62POS .100 EYELET |
| ESC31DTEH | CONN EDGECARD 62POS .100 EYELET |
| ABB30DHBR | CONN EDGECARD 60POS R/A .050 SLD |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AT27C256R-70JU SL383 | 制造商:Atmel Corporation 功能描述:EPROM OTP 256KBIT 32KX8 70NS 32PLCC - Tape and Reel |
| AT27C256R-70JU-306 | 功能描述:IC OTP 256KBIT 70NS 32PLCC 制造商:microchip technology 系列:- 包装:管件 零件状态:在售 存储器类型:非易失 存储器格式:EPROM 技术:EPROM - OTP 存储容量:256Kb （32K x 8） 写周期时间 - 字，页:- 访问时间:70ns 存储器接口:并联 电压 - 电源:4.5 V ~ 5.5 V 工作温度:-40°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 标准包装:32 |
| AT27C256R-70JU-T | 功能描述:IC OTP 256KBIT 70NS 32PLCC 制造商:microchip technology 系列:- 包装:剪切带（CT） 零件状态:在售 存储器类型:非易失 存储器格式:EPROM 技术:EPROM - OTP 存储容量:256Kb （32K x 8） 写周期时间 - 字，页:- 访问时间:70ns 存储器接口:并联 电压 - 电源:4.5 V ~ 5.5 V 工作温度:-40°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 标准包装:1 |
| AT27C256R-70KC | 制造商:未知厂家 制造商全称:未知厂家 功能描述:x8 EPROM |
| AT27C256R-70KI | 制造商:未知厂家 制造商全称:未知厂家 功能描述:x8 EPROM |
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