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參數(shù)資料
| 型號(hào)： | AT27C400-12 |
| 廠商： | Atmel Corp. |
| 英文描述： | AML42 Series, Solid State Indicator, Square, Compact Style, Lighted, 1 LED, Snap in panel mount |
| 中文描述： | 4兆位256K × 16或512K × 8檢察官辦公室存儲(chǔ)器 |
| 文件頁(yè)數(shù)： | 2/10頁(yè) |
| 文件大?。?/td> | 184K |
| 代理商： | AT27C400-12 |
AT27C400
2
Description
(Continued)
The AT27C400 can be organized as either word-wide or
byte-wide. The organization is selected via the BYTE/V
PP
pin. When BYTE/V
PP
is asserted high (V
IH
), the word-wide
organization is selected and the O15/A-1 pin is used for
O15 data output. When BYTE/V
PP
is asserted low (V
IL
), the
byte-wide organization is selected and the O15/A-1 pin is
used for the address pin A-1. When the AT27C400 is logi-
cally regarded as x16 (word-wide), but read in the byte-
wide mode, then with A-1 = V
IL
the lower 8 bits of the 16-bit
word are selected and with A-1 = V
IH
the upper 8 bits of the
16-bit word are selected.
In read mode, the AT27C400 typically consumes 15 mA.
Standby mode supply current is typically less than 10
μ
A
.
The AT27C400 is available in industry standard
JEDEC-approved one-time programmable (OTP) PDIP,
SOIC (SOP), and TSOP packages. The device features
two-line control (CE, OE) to eliminate bus contention in
high-speed systems.
With high density 256K word or 512K byte storage capabil-
ity, the AT27C400 allows firmware to be stored reliably and
to be accessed by the system without the delays of mass
storage media.
Atmel’s AT27C400 has additional features that 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 50
μ
s/word. The Integrated Product
Identification Code electronically identifies the device and
manufacturer. This feature is used by industry standard
programming equipment to select the proper programming
algorithms and voltages.
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.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AT27C400-12PC | 4-Megabit 256K x 16 or 512K x 8 OTP EPROM |
| AT27C400-12PI | 4-Megabit 256K x 16 or 512K x 8 OTP EPROM |
| AT27C400-90RC | 4-Megabit 256K x 16 or 512K x 8 OTP EPROM |
| AT27C400-70PC | 8-Channel Analog Multiplexer/Demultiplexer 16-SOIC -40 to 85 |
| AT27C400-70PI | 8-Channel Analog Multiplexer/Demultiplexer 16-SOIC -40 to 85 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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(yè):- 訪問(wèn)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(yè):- 訪問(wèn)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 |
| AT27C409612JC | 制造商:Atmel Corporation 功能描述: |
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