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參數(shù)資料
| 型號(hào)： | 27C020 |
| 廠商： | Atmel Corp. |
| 英文描述： | LED 470NM BLUE SMD PLCC4 |
| 中文描述： | 2兆位256K × 8檢察官辦公室存儲(chǔ)器 |
| 文件頁(yè)數(shù)： | 2/9頁(yè) |
| 文件大?。?/td> | 170K |
| 代理商： | 27C020 |
AT27C020
2
The AT27C020 is available in a choice of industry standard
JEDEC-approved one-time programmable (OTP) plastic
PDIP, PLCC, and TSOP packages. All devices feature two-
line control (CE, OE) to give designers the flexibility to pre-
vent bus contention.
With 256K byte storage capability, the AT27C020 allows
firmware to be stored reliably and to be accessed by the
system without the delays of mass storage media.
Atmel’s 27C020 have 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 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.
Block Diagram
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 27C020 | LED 591NM AMBER SMD PLCC4 |
| 27C024-70 | 1M-BIT [128K x 8/64K x 16] CMOS EPROM |
| 27C1024-10 | 1M-BIT [128K x 8/64K x 16] CMOS EPROM |
| 27C1024-12 | 1M-BIT [128K x 8/64K x 16] CMOS EPROM |
| 27C1024-15 | 1M-BIT [128K x 8/64K x 16] CMOS EPROM |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 27C024-70 | 制造商:MCNIX 制造商全稱:Macronix International 功能描述:1M-BIT [128K x 8/64K x 16] CMOS EPROM |
| 27C040 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:4-Megabit 512K x 8 OTP EPROM |
| 27C040150DC | 制造商: 功能描述: 制造商:undefined 功能描述: |
| 27C04A-15IL | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:4K (512 x 8) CMOS EEPROM |
| 27C04A-15IP | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:4K (512 x 8) CMOS EEPROM |
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