công cụ tìm kiếm bảng dữ liệu linh kiện điện tử
  Vietnamese  ▼
ALLDATASHEET.VN

X  

AM27X020-90JI bảng dữ liệu(PDF) 4 Page - Advanced Micro Devices

tên linh kiện AM27X020-90JI
Giải thích chi tiết về linh kiện  2 Megabit (256 K x 8-Bit) CMOS ExpressROM Device
Download  10 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
nhà sản xuất  AMD [Advanced Micro Devices]
Trang chủ  http://www.amd.com
Logo AMD - Advanced Micro Devices

AM27X020-90JI bảng dữ liệu(HTML) 4 Page - Advanced Micro Devices

  AM27X020-90JI Datasheet HTML 1Page - Advanced Micro Devices AM27X020-90JI Datasheet HTML 2Page - Advanced Micro Devices AM27X020-90JI Datasheet HTML 3Page - Advanced Micro Devices AM27X020-90JI Datasheet HTML 4Page - Advanced Micro Devices AM27X020-90JI Datasheet HTML 5Page - Advanced Micro Devices AM27X020-90JI Datasheet HTML 6Page - Advanced Micro Devices AM27X020-90JI Datasheet HTML 7Page - Advanced Micro Devices AM27X020-90JI Datasheet HTML 8Page - Advanced Micro Devices AM27X020-90JI Datasheet HTML 9Page - Advanced Micro Devices Next Button
Zoom Inzoom in Zoom Outzoom out
 4 / 10 page
background image
4
Am27X020
FUNCTIONAL DESCRIPTION
Read Mode
To obtain data at the device outputs, Chip Enable (CE#)
and Output Enable (OE#) must be driven low. CE# con-
trols the power to the device and is typically used to se-
lect the device. OE# enables the device to output data,
independent of device selection. Addresses must be
stable for at least tACC–tOE. Refer to the Switching
Waveforms section for the timing diagram.
Standby Mode
The device enters the CMOS standby mode when CE#
is at VCC ± 0.3 V. Maximum VCC current is reduced to
100 µA. The device enters the TTL-standby mode
when CE# is at VIH. Maximum VCC current is reduced
to 1.0 mA. When in either standby mode, the device
places its outputs in a high-impedance state, indepen-
dent of the OE# input.
Output OR-Tieing
To accommodate multiple memory connections, a
two-line control function provides:
s Low memory power dissipation, and
s Assurance that output bus contention will not occur.
CE# should be decoded and used as the primary de-
vice-selecting function, while OE# be made a common
connection to all devices in the array and connected to
the READ line from the system control bus. This as-
sures that all deselected memory devices are in their
low-power standby mode and that the output pins are
only active when data is desired from a particular mem-
ory device.
System Applications
During the switch between active and standby condi-
tions, transient current peaks are produced on the ris-
ing and falling edges of Chip Enable. The magnitude of
these transient current peaks is dependent on the out-
put capacitance loading of the device. At a minimum, a
0.1 µF ceramic capacitor (high frequency, low inherent
inductance) should be used on each device between
VCC and VSS to minimize transient effects. In addition,
to overcome the voltage drop caused by the inductive
effects of the printed circuit board traces on Express-
ROM device arrays, a 4.7 µF bulk electrolytic capacitor
should be used between VCC and VSS for each eight
devices. The location of the capacitor should be close
to where the power supply is connected to the array.
MODE SELECT TABLE
Note:
X = Either VIH or VIL.
Mode
CE#
OE#
PGM#
VPP
Outputs
Read
VIL
VIL
XX
DOUT
Output Disable
X
VIH
X
X
High Z
Standby (TTL)
VIH
X
X
X
High Z
Standby (CMOS)
VCC ± 0.3 V
X
X
X
High Z


Số phần tương tự - AM27X020-90JI

nhà sản xuấttên linh kiệnbảng dữ liệuGiải thích chi tiết về linh kiện
logo
Advanced Micro Devices
AM27X010 AMD-AM27X010 Datasheet
138Kb / 10P
   1 Megabit (128 K x 8-Bit) CMOS ExpressROM Device
AM27X010-120JC AMD-AM27X010-120JC Datasheet
138Kb / 10P
   1 Megabit (128 K x 8-Bit) CMOS ExpressROM Device
AM27X010-120JI AMD-AM27X010-120JI Datasheet
138Kb / 10P
   1 Megabit (128 K x 8-Bit) CMOS ExpressROM Device
AM27X010-120PC AMD-AM27X010-120PC Datasheet
138Kb / 10P
   1 Megabit (128 K x 8-Bit) CMOS ExpressROM Device
AM27X010-120PI AMD-AM27X010-120PI Datasheet
138Kb / 10P
   1 Megabit (128 K x 8-Bit) CMOS ExpressROM Device
More results

Mô tả tương tự - AM27X020-90JI

nhà sản xuấttên linh kiệnbảng dữ liệuGiải thích chi tiết về linh kiện
logo
Advanced Micro Devices
AM27X010 AMD-AM27X010 Datasheet
138Kb / 10P
   1 Megabit (128 K x 8-Bit) CMOS ExpressROM Device
AM27X040 AMD-AM27X040 Datasheet
132Kb / 10P
   4 Megabit (512 K x 8-Bit) CMOS ExpressROM Device
AM27X2048 AMD-AM27X2048 Datasheet
136Kb / 10P
   2 Megabit (128 K x 16-Bit) CMOS ExpressROM Device
AM27X256 AMD-AM27X256 Datasheet
139Kb / 10P
   256 Kilobit (32 K x 8-Bit) CMOS ExpressROM Device
AM27C020 AMD-AM27C020 Datasheet
172Kb / 12P
   2 Megabit (256 K x 8-Bit) CMOS EPROM
AM27X64 AMD-AM27X64 Datasheet
139Kb / 10P
   64 Kilobit (8 K x 8-Bit) CMOS ExpressROM Device
AM27X128 AMD-AM27X128 Datasheet
139Kb / 10P
   128 Kilobit (16 K x 8-Bit) CMOS ExpressROM Device
AM27X512 AMD-AM27X512 Datasheet
135Kb / 10P
   512 Kilobit (64 K x 8-Bit) CMOS ExpressROM Device
AM27C4096 AMD-AM27C4096 Datasheet
165Kb / 12P
   4 Megabit (256 K x 16-Bit) CMOS EPROM
AM28F020 AMD-AM28F020 Datasheet
509Kb / 35P
   2 Megabit (256 K x 8-Bit) CMOS 12.0 Volt, Bulk Erase Flash Memory
More results


Html Pages

1 2 3 4 5 6 7 8 9 10


bảng dữ liệu tải về

Go To PDF Page


Link URL




Chính sách bảo mật
ALLDATASHEET.VN
Cho đến nay ALLDATASHEET có giúp ích cho doanh nghiệp của bạn hay không?  [ DONATE ] 

Alldatasheet là   |   Quảng cáo   |   Liên lạc với chúng tôi   |   Chính sách bảo mật   |   Trao đổi link   |   Tìm kiếm theo nhà sản xuất
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com