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參數(shù)資料
| 型號(hào)： | AT27C256R-90TC |
| 廠商： | ATMEL CORP |
| 元件分類： | DRAM |
| 英文描述： | 8-Channel Analog Multiplexer/Demultiplexer 16-SSOP -40 to 85 |
| 中文描述： | 32K X 8 OTPROM, 90 ns, PDSO28 |
| 封裝： | PLASTIC, TSOP-28 |
| 文件頁數(shù)： | 2/9頁 |
| 文件大?。?/td> | 251K |
| 代理商： | AT27C256R-90TC |
The AT27C256R is available in a choice of industry stand-
ard JEDEC-approved one time programmable (OTP)
plastic DIP, PLCC, SOIC, and TSOP packages. All de-
vices 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.
Atmel’s 27C256R has additional features to ensure high
quality and efficient production use. The Rapid
Program-
ming Algorithm reduces the time required to program the
part and guarantees reliable programming. Programming
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 program-
ming algorithms and voltages.
Description
(Continued)
Switching between active and standby conditions via the
Chip Enable pin may produce transient voltage excur-
sions. Unless accommodated by the system design, these
transients may exceed data sheet limits, resulting in de-
vice non-conformance. At a minimum, a 0.1
μ
F high fre-
quency, low inherent inductance, ceramic capacitor
should be utilized 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 posi-
tioned as close as possible to the point where the power
supply is connected to the array.
System Considerations
3-126
AT27C256R
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AT27C256R-90TI | 8-Channel Analog Multiplexer/Demultiplexer 16-SSOP -40 to 85 |
| AT27C256R-45RC | 256K 32K x 8 OTP CMOS EPROM |
| AT27C256R-12 | 256K 32K x 8 OTP CMOS EPROM |
| AT27C256R-12JC | 256K 32K x 8 OTP CMOS EPROM |
| AT27C256R-12JI | 256K 32K x 8 OTP CMOS EPROM |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AT27C256R-90TI | 功能描述:IC OTP 256KBIT 90NS 28TSOP RoHS:否 類別:集成電路 (IC) >> 存儲(chǔ)器 系列:- 標(biāo)準(zhǔn)包裝:32 系列:- 格式 - 存儲(chǔ)器:閃存 存儲(chǔ)器類型:FLASH 存儲(chǔ)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(yīng)商設(shè)備封裝:32-PLCC 包裝:管件 其它名稱:AT49BV00112JC |
| AT27C400-90JC | 功能描述:IC OTP 4MBIT 90NS 44PLCC 制造商:microchip technology 系列:- 包裝:管件 零件狀態(tài):停產(chǎn) 存儲(chǔ)器類型:非易失 存儲(chǔ)器格式:EPROM 技術(shù):EPROM - OTP 存儲(chǔ)容量:4Mb （512K x 8，256K x 16） 寫周期時(shí)間 - 字，頁:- 訪問時(shí)間:90ns 存儲(chǔ)器接口:并聯(lián) 電壓 - 電源:4.5 V ~ 5.5 V 工作溫度:0°C ~ 70°C（TC） 安裝類型:表面貼裝 封裝/外殼:44-LCC（J 形引線） 供應(yīng)商器件封裝:44-PLCC（16.59x16.59） 基本零件編號(hào):AT27C400 標(biāo)準(zhǔn)包裝:27 |
| AT27C400-90PC | 功能描述:IC OTP 4MBIT 90NS 40DIP 制造商:microchip technology 系列:- 包裝:管件 零件狀態(tài):停產(chǎn) 存儲(chǔ)器類型:非易失 存儲(chǔ)器格式:EPROM 技術(shù):EPROM - OTP 存儲(chǔ)容量:4Mb （512K x 8，256K x 16） 寫周期時(shí)間 - 字，頁:- 訪問時(shí)間:90ns 存儲(chǔ)器接口:并聯(lián) 電壓 - 電源:4.5 V ~ 5.5 V 工作溫度:0°C ~ 70°C（TC） 安裝類型:通孔 封裝/外殼:40-DIP（0.600"，15.24mm） 供應(yīng)商器件封裝:40-PDIP 基本零件編號(hào):AT27C400 標(biāo)準(zhǔn)包裝:10 |
| AT27C409610JC | 制造商:ATMEL 功能描述:New |
| AT27C4096-10PC | 制造商:Atmel Corporation 功能描述:EPROM OTP 4M-Bit 256K x 16 100ns 40-Pin PDIP |
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