欧美成人免费电影,国产欧美一区二区三区精品酒店,精品国产a毛片,色网在线免费观看

參數資料
型號: AM27C256-255EC
廠商: ADVANCED MICRO DEVICES INC
元件分類: PROM
英文描述: 256 Kilobit (32,768 x 8-Bit) CMOS EPROM
中文描述: 32K X 8 OTPROM, 250 ns, PDSO32
封裝: TSOP-32
文件頁數: 1/12頁
文件大小: 171K
代理商: AM27C256-255EC
FINAL
Publication#
08007
Issue Date:
May 1998
Rev:
I
Amendment/
0
Am27C256
256 Kilobit (32 K x 8-Bit) CMOS EPROM
DISTINCTIVE CHARACTERISTICS
I
Fast access time
— Speed options as fast as 45 ns
I
Low power consumption
— 20 μA typical CMOS standby current
I
JEDEC-approved pinout
I
Single +5 V power supply
I
±
10% power supply tolerance standard
I
100% Flashrite programming
— Typical programming time of 4 seconds
I
Latch-up protected to 100 mA from –1 V to
V
CC
+ 1 V
I
High noise immunity
I
Versatile features for simple interfacing
— Both CMOS and TTL input/output compatibility
— Two line control functions
I
Standard 28-pin DIP, PDIP, and 32-pin PLCC
packages
GENERAL DESCRIPTION
The Am27C256 is a 256-Kbit, ultraviolet erasable pro-
grammable read-only memory. It is organized as 32K
words by 8 bits per word, operates from a single +5 V
supply, has a static standby mode, and features fast
single address location programming. Products are
available in windowed ceramic DIP packages, as well
as plastic one time programmable (OTP) PDIP and
PLCC packages.
Data can be typically accessed in less than 55 ns, al-
lowing high-performance microprocessors to operate
without any WAIT states. The device offers separate
Output Enable (OE#) and Chip Enable (CE#) controls,
thus eliminating bus contention in a multiple bus micro-
processor system.
AMD’s CMOS process technology provides high
speed, low power, and high noise immunity. Typical
power consumption is only 80 mW in active mode, and
100 μW in standby mode.
All signals are TTL levels, including programming sig-
nals. Bit locations may be programmed singly, in
blocks, or at random. The device supports AMD’s
Flashrite programming algorithm (100 μs pulses), re-
sulting in a typical programming time of 4 seconds.
BLOCK DIAGRAM
08007I-1
A0–A14
Address
Inputs
CE#
OE#
V
CC
V
SS
V
PP
Data Outputs
DQ0–DQ7
Output
Buffers
Y
Gating
262,144
Bit Cell
Matrix
X
Decoder
Y
Decoder
Output Enable
Chip Enable
and
Prog Logic
相關PDF資料
PDF描述
AM27C256-255EI 256 Kilobit (32,768 x 8-Bit) CMOS EPROM
AM27C256-55 256 Kilobit (32,768 x 8-Bit) CMOS EPROM
AM27C256-55EC 256 Kilobit (32,768 x 8-Bit) CMOS EPROM
AM27C256-55EI 256 Kilobit (32,768 x 8-Bit) CMOS EPROM
AM27C256-55PC 256 Kilobit (32 K x 8-Bit) CMOS EPRO
相關代理商/技術參數
參數描述
AM27C256-45DI 制造商:Rochester Electronics LLC 功能描述:
AM27C256-55DC 制造商:Rochester Electronics LLC 功能描述:
AM27C256-55DI 制造商:Rochester Electronics LLC 功能描述:
AM27C25655JC 制造商:AMD 功能描述:*
AM27C256-55PC 制造商:Rochester Electronics LLC 功能描述:
主站蜘蛛池模板: 上饶市| 吉木萨尔县| 潼关县| 沽源县| 镇赉县| 郁南县| 新乐市| 嘉荫县| 岳阳市| 全椒县| 望谟县| 田阳县| 郧西县| 临汾市| 左云县| 扶风县| 高州市| 鸡东县| 民和| 台前县| 赣榆县| 区。| 衡阳市| 高平市| 莱芜市| 麻栗坡县| 衡东县| 阿坝县| 阿合奇县| 郸城县| 广南县| 霸州市| 青浦区| 项城市| 大田县| 竹溪县| 黑河市| 大姚县| 新田县| 株洲市| 繁昌县|