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AM27X128-255PC

Description
128 Kilobit (16 K x 8-Bit) CMOS ExpressROM Device
Categorystorage    storage   
File Size68KB,10 Pages
ManufacturerAMD
Websitehttp://www.amd.com
Download Datasheet Parametric View All

AM27X128-255PC Overview

128 Kilobit (16 K x 8-Bit) CMOS ExpressROM Device

AM27X128-255PC Parametric

Parameter NameAttribute value
Is it Rohs certified?incompatible
MakerAMD
Parts packaging codeDIP
package instructionDIP, DIP28,.6
Contacts28
Reach Compliance Codeunknow
ECCN codeEAR99
Maximum access time250 ns
Other featuresEXPRESS
JESD-30 codeR-PDIP-T28
JESD-609 codee0
memory density131072 bi
Memory IC TypeOTP ROM
memory width8
Number of functions1
Number of terminals28
word count16384 words
character code16000
Operating modeASYNCHRONOUS
Maximum operating temperature70 °C
Minimum operating temperature
organize16KX8
Output characteristics3-STATE
Package body materialPLASTIC/EPOXY
encapsulated codeDIP
Encapsulate equivalent codeDIP28,.6
Package shapeRECTANGULAR
Package formIN-LINE
Parallel/SerialPARALLEL
Peak Reflow Temperature (Celsius)NOT SPECIFIED
power supply5 V
Certification statusNot Qualified
Maximum standby current0.0001 A
Maximum slew rate0.03 mA
Maximum supply voltage (Vsup)5.25 V
Minimum supply voltage (Vsup)4.75 V
Nominal supply voltage (Vsup)5 V
surface mountNO
technologyCMOS
Temperature levelCOMMERCIAL
Terminal surfaceTin/Lead (Sn/Pb)
Terminal formTHROUGH-HOLE
Terminal pitch2.54 mm
Terminal locationDUAL
Maximum time at peak reflow temperatureNOT SPECIFIED
Base Number Matches1
FINAL
Am27X128
128 Kilobit (16 K x 8-Bit) CMOS ExpressROM Device
DISTINCTIVE CHARACTERISTICS
s
As an OTP EPROM alternative:
— Factory optimized programming
— Fully tested and guaranteed
s
As a Mask ROM alternative:
— Shorter leadtime
— Lower volume per code
s
Fast access time
— 55 ns
s
Single +5 V power supply
s
Compatible with JEDEC-approved EPROM
pinout
s
±10%
power supply tolerance
s
High noise immunity
s
Low power dissipation
— 100 µA maximum CMOS standby current
s
Available in Plastic Dual-In-line Package (PDIP)
and Plastic Leaded Chip Carrier (PLCC)
s
Latch-up protected to 100 mA from –1 V to
V
CC
+ 1 V
s
Versatile features for simple interfacing
— Both CMOS and TTL input/output compatibility
— Two line control functions
GENERAL DESCRIPTION
The Am27X128 is a factory programmed and tested
OTP EPROM. It is programmed after packaging prior to
final test. Every device is rigorously tested under AC
and DC operating conditions to your stable code. It is
organized as 16 Kwords by 8 bits per word and is avail-
able in plastic dual in-line packages (PDIP), as well as
plastic leaded chip carrier (PLCC) packages. Express-
ROM devices provide a board-ready memory solution
for medium to high volume codes with short leadtimes.
This offers manufacturers a cost-effective and flexible
alternative to OTP EPROMs and mask programmed
ROMs.
Data can be accessed as fast as 55 ns, allowing
high-performance microprocessors to operate with re-
duced WAIT states. The device offers separate Output
Enable (OE#) and Chip Enable (CE#) controls, thus
eliminating bus contention in a multiple bus micropro-
cessor 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.
BLOCK DIAGRAM
V
CC
V
SS
OE#
CE#
Output Enable
Chip Enable
and
Prog Logic
Y
Decoder
A0–A13
Address
Inputs
Output
Buffers
Data Outputs DQ0–DQ7
Y
Gating
X
Decoder
131,072
Bit Cell
Matrix
12083F-1
Publication#
12083
Rev:
F
Amendment/0
Issue Date:
May 1998
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