DataSheet39.com

Am28F020 Datasheet PDF - AMD

Part Number Am28F020
Description 2 Megabit CMOS 12.0 Volt Bulk Erase Flash Memory
Manufacturers AMD 
Logo AMD Logo 



Preview ( 30 pages )
		
Am28F020 datasheet, circuit
FINAL
Am28F020
2 Megabit (256 K x 8-Bit)
CMOS 12.0 Volt, Bulk Erase Flash Memory
DISTINCTIVE CHARACTERISTICS
s High performance
— Access times as fast as 70 ns
s CMOS low power consumption
— 30 mA maximum active current
— 100 µA maximum standby current
— No data retention power consumption
s Compatible with JEDEC-standard byte-wide
32-pin EPROM pinouts
— 32-pin PDIP
— 32-pin PLCC
— 32-pin TSOP
s 10,000 write/erase cycles minimum
s Write and erase voltage 12.0 V ±5%
s Latch-up protected to 100 mA from
–1 V to VCC +1 V
s Flasherase Electrical Bulk Chip Erase
— One second typical chip erase time
s Flashrite Programming
— 10 µs typical byte program time
— 4 s typical chip program time
s Command register architecture for
microprocessor/microcontroller compatible
write interface
s On-chip address and data latches
s Advanced CMOS flash memory technology
— Low cost single transistor memory cell
s Automatic write/erase pulse stop timer
GENERAL DESCRIPTION
The Am28F020 is a 2 Megabit Flash memory orga-
nized as 256 Kbytes of 8 bits each. AMD’s Flash mem-
ories offer the most cost-effective and reliable read/
write non-volatile random access memor y. The
Am28F020 is packaged in 32-pin PDIP, PLCC, and
TSOP versions. It is designed to be reprogrammed and
erased in-system or in standard EPROM programmers.
The Am28F020 is erased when shipped from
the factory.
The standard Am28F020 offers access times of as fast
as 70 ns, allowing high speed microprocessors to
operate without wait states. To eliminate bus conten-
tion, the device has separate chip enable (CE#) and
output enable (OE#) controls.
AMD’s Flash memories augment EPROM functionality
with in-circuit electrical erasure and programming. The
Am28F020 uses a command register to manage this
functionality, while maintaining a JEDEC-standard 32-
pin pinout. The command register allows for 100% TTL
level control inputs and fixed power supply levels during
erase and programming, while maintaining maximum
EPROM compatibility.
AMD’s Flash technology reliably stores memory con-
tents even after 10,000 erase and program cycles. The
AMD cell is designed to optimize the erase and pro-
gramming mechanisms. In addition, the combination of
advanced tunnel oxide processing and low internal
electric fields for erase and programming operations
produces reliable cycling. The Am28F020 uses a
12.0±5% VPP supply input to perform the Flasherase
and Flashrite functions.
The highest degree of latch-up protection is achieved
with AMD’s proprietary non-epi process. Latch-up pro-
tection is provided for stresses up to 100 mA on
address and data pins from –1 V to VCC +1 V.
The Am28F020 is byte programmable using 10 µs
programming pulses in accordance with AMD’s
Flashrite programming algorithm. The typical room
temperature programming time of the Am28F020 is
four seconds. The entire chip is bulk erased using 10
ms erase pulses according to AMD’s Flasherase
algorithm. Typical erasure at room temperature is
accomplished in less than one second. The windowed
package and the 15–20 minutes required for EPROM
erasure using ultraviolet light are eliminated.
Commands are written to the command register using
standard microprocessor write timings. Register con-
tents serve as input to an internal state-machine, which
controls the erase and programming circuitry. During
write cycles, the command register internally latches
Publication# 14727 Rev: F Amendment/+2
Issue Date: January 1998

No Preview Available !


1 page
line_dark_gray
Am28F020 equivalent
ORDERING INFORMATION
Standard Products
AMD standard products are available in several packages and operating ranges. The ordering number (Valid Combination) is
formed by a combination of the following:
AM28F020 -70
J
CB
OPTIONAL PROCESSING
Blank = Standard Processing
B = Burn-In
Contact an AMD representative for more information.
TEMPERATURE RANGE
C = Commercial (0°C to +70°C)
I = Industrial (–40°C to +85°C)
E = Extended (–55°C to +125°C)
PACKAGE TYPE
P = 32-Pin Plastic DIP (PD 032)
J = 32-Pin Rectangular Plastic Leaded Chip
Carrier (PL 032)
E = 32-Pin Thin Small Outline Package (TSOP)
Standard Pinout (TS 032)
F = 32-Pin Thin Small Outline Package (TSOP)
Reverse Pinout (TSR032)
SPEED OPTION
See Product Selector Guide and Valid Combinations
DEVICE NUMBER/DESCRIPTION
Am28F020
2 Megabit (256 K x 8-Bit) CMOS Flash Memory
AM28F020-70
AM28F020-90
AM28F020-120
AM28F020-150
AM28F020-200
Valid Combinations
PC, PI, PE,
JC, JI, JE,
EC, EI, EE,
FC, FI, FE
Valid Combinations
Valid Combinations list configurations planned to be support-
ed in volume for this device. Consult the local AMD sales of-
fice to confirm availability of specific valid combinations and
to check on newly released combinations.
Am28F020
5

5 Page
line_dark_gray


Information Total 30 Pages
Download[ Am28F020.PDF Datasheet ]

Share Link :

Electronic Components Distributor

SparkFun Electronics Allied Electronics DigiKey Electronics Arrow Electronics
Mouser Electronics Adafruit Element14 Chip One Stop



Featured Datasheets

Part NumberDescriptionManufacturers
Am28F020The function is 2 Megabit CMOS 12.0 Volt Bulk Erase Flash Memory.AMD
AMD
Am28F020AThe function is 2 Megabit CMOS 12.0 Volt Bulk Erase Flash Memory.AMD
AMD

Quick jump to:

Am28  1N4  2N2  2SA  2SC  74H  ADC  BC  BF  BU  CXA  HCF  IRF  KA  KIA  LA  LM  MC  NE  ST  STK  TDA  TL  UA 


DataSheet39.com is an Online Datasheet PDF Search Site.
It offers a large amount of data sheet, You can free PDF files download.
The updated every day, always provide the best quality and speed.



keyword : Am28F020 schematic, equivalent, pinout, replacement, circuit, manual

DataSheet39.com   |  2020   |  Privacy Policy |  Contact Us  | New  |  Search