DM87S185J ,55 ns, (2048 x 4) 8192-bit TTL PROMBlock Diagram
A9
"
A7 61_4
Mi usconan
A5
A4
8192-8" ARRAY
64 x123
MEMORY MATRIX
..
DM87S185N ,55 ns, (2048 x 4) 8192-bit TTL PROMDM77S185/DM87S185
National
Semiconductor
DM77/87S185
(2048 x 4) 8192-Bit TTL PROM
DM87S185N ,55 ns, (2048 x 4) 8192-bit TTL PROMGeneral Description
This Schottky memory is organized in the popular 2048
words by 4 bits confi ..
DM87S281N ,(1024 x 8) 8192-BIT TTL PROMsFeatures
I Advanced titanium-tungsten (Ti-W) fuses
I Schottky-clamped for high speed
Address a ..
DM87SR181J ,20 ns, (1024 x 8) 8K-bit registered TTL PROMGeneral Description
The DM77/87SR181 is an electrically programmable
Schottky TTL read-only mem ..
DM9000BEP , Ethernet Controller With General Processor Interface
DS26LS31CN ,Quad High Speed Differential Line DriversFeaturesn Output skew—2.0 ns typicalThe DS26LS31 is a quad differential line driver designed fordig ..
DS26LS31MJ/883 ,Quad High Speed Differential Line Driversfeatures a power up/down protection circuit which keeps the output in a highimpedance state (TRI-ST ..
DS26LS31MW/883 ,Quad High Speed Differential Line DriversFEATURES SECTIONoProcessing Subgrp Description Temp ( C)MIL-STD-883, Method 5004 1 Static tests ..
DS26LS31MW/883 ,Quad High Speed Differential Line DriversDS26LS31C/DS26LS31M Quad High Speed Differential Line DriverJune 1998DS26LS31C/DS26LS31MQuad High S ..
DS26LS32 ,Quad Differential Line ReceiversLogic DiagramDS005255-1®TRI-STATE is a registered trademark of National Semiconductor Corporation. ..
DS26LS32A , DS26LS32AC/DS26LS32C/DS26LS32M/DS26LS33M Quad Differential Line Receivers
DM77S185J-DM87S185BJ-DM87S185J-DM87S185N
60 ns, (2048 x 4) 8192-bit TTL PROM
DM77S185/DM87S185
National
Semiconductor
DM77/87S185
(2048 x 4) 8192-Bit TTL PROM
General Description Features
This Schottky memory is organized in the popular 2048 ll Advanced titanium-tungsten (Ti-W) fuse)
words by 4 bits configuration. A memory enabIe input is pro- I: Schottky-clamped for high speed
vided to control the output states. When the device is en- Address access~35 ns max
abled, the outputs represent the contents of the selected Enable atpttesty-25 ns max
word. When disabled, the 4 outputs go to the "OFF" or high Enable recovery-M ns max
impedance state. I: PNP inputs for reduced input loading
PROMs are shipped from the factory with lows in all loca- I: All DC and AC parameters guaranteed over
tions. A high may be programmed into any selected location temperature
by following the programming instructions. a Low voltage TRI-SAFETM programming
a TRI-STATE' outputs
Block Diagram
A7 I 819t-8lT mm
A6 Ct 64 x128
oscnnen MEMORY MATRIX
Pln Names .. .
AO-AI 0 Addresses
mo G Output Enable
g GND Ground
'll tM-tM Outputs
VCC Power Supply
E ENABLE
SUFFER
TL/D/9197-1
Connection Diagrams
Dual-In-LIne-Package
Aii--t
tmo --g
Top View
Order Number DM77/87S185J, 185AJ, 185N
DM87S185N, 185AN,185BN
See NS Package Number J18A or MBA
Ordering Information
Commercial Temp Range (0°C to + 70°C)
TL/D/9197-2
Parameter/Order Number
Max Access Time (ns)
DM87S185AJ 45
DM87S185BJ 35
DM87S185J 55
DM87S185AN 45
DM87S185BN 35
DM87S185N 55
DM87S185AV 45
DM87SI85BV 35
DM87S185V 55
Plastic Leaded Chip Carrier (PLCC)
ID ED 0 p, ts
A < = ' "
I I I l I
3 2 1 20 19
A4- 4 18 “A8
M- 5 17 -A9
A0- ii " "-00
A1- 7 15 -)lc
M-. 8 14 -01
9 10 11 12 13
I l l I
Ct D IO '0 N
a p, c, cr
TL/D/9197-3
TopView
Order Number DM87St85V, 185AV, 185BV
See NS Package Number V20A
Military Temp Range c- 55°C to + 125'C)
Parameter/Order Number
Max Access Time (ns)
DM77S185AJ 60 f .
DM77S185BJ 50
DM77S185J 70
98LS£8WOISBLS££WG
DM77S185/DM87S185
Absolute Maximum Ratings (Note1)
Operating Conditions
If Mllltary/Aerospaee specllled devices are required, Mln Max Unlts
please contact the Natlonal Semiconductor Sales Supply Voltage (Vcc)
Ofmte/Ditgtrlbutortt for availability and speclflcatlons. Military 4.50 5.50 V
Supply Voltage (Note 2) - 0.5V to + 7.0V Commercial 4.75 5.25 V
Input Voltage (Note 2) - 1.2V to + 5.5V Ambient Temperature (T A)
OutputVoItage(Note 2) -0.5Vto +5.5v Military . -55 +125 C
Stora eTem erature -65'Ct +150°C Commercial 0 +70 "C
g p . tr 0 Logical "o" lnputVoltage o 0.8 v
Lead Temp. (Soldoring, 10 seconds) 300 C Logical "I" Input Voltage 2.0 5.5 V
ESD to be determined
Note 1: Absolute maximum ratings are those values beyond which the de-
vice may be permanently damaged. They do not mean that the dev|ce may
be operated at these values.
Note 2: These limits do not apply during programming. For the programming
ratings, refer to the programming instructions.
DC Electrical Characteristics (Note1)
Symbol Parameter Condltlons DM77S185 DM87S185 Unlts
Mln Typ Max Mln Typ Max
IIL Input Load Current Vcc = Max, VIN = 0.45V -80 -250 -80 -250 WA
IIH Input Leakage Current Vcc = Max, " = 2.7V 25 25 pA
Vcc = Max, VIN = 5.5V 1.0 1.0 mA
VOL Low Level Output Voltage Vcc = Min, kx = 16 mA 0.35 0.50 0.35 0.45 V
" Low Level Input Voltage 0.80 0.80 V
" High Level Input Voltage 2.0 2.0 V
Vc InputCIamp Voltage Vcc = Min, IN = --18 mA -0.8 -1.2 -0.8 -1.2 V
C. InputCapacitance Vcc = 5.0V, VIN = 2.0V I .
TA = 25°c,1 MHz 4.0 4.0 pF
Co Output Capacitance Vcc = 5.0V, Vo = 2.0V 6 0 6 O F
TA = 25''C,1 MHz, Outputs Off . . p
ICC Power Supply Current Vcc = Max, Input Grounded 100 140 100 140 m A
All Outputs Open
los Short Circuit vo = OV, Vcc = Max _ - _ _
Output Current (Note 2) 20 70 20 70 mA
loz Output Leakage Vcc = Max, Vo = 0.45Vto 2.4V
- + - +
(TRI-STATE) Chip Disabled 50 50 50 so WA
VOH Output Voltage High IOH = -2.0 mA 2.4 3.2 V
IOH T."'-- - 6.5 mA 2.4 3.2 V
Note 1: These limits apply over the entire operating range unless otherwise noted. All typical values are for Vcc ' 5.0V and TA = 25'C.
Note 2: During los measurement, only one output at a time should be grounded. Permanent damage may otherwise result.
AC Electrical Characteristics with Standard Load and Operating Conditions
COMMERCIAL TEMP RANGE (0°C to + 70°C)
JEDEC DM87S185 DM87S185A DM8781858
Symbol Parameter Units
Symbol Min Typ Max Min Typ Max Min Typ Max
TAA TAVQV Address Access Time 40 55 30 45 25 35 ns
TEA TEVQV Enable Access Time 15 25 15 25 15 25 ns
TER TEXQX Enable Recovery Time 15 25 15 25 15 25 ns
TZX TEVQX Output Enable Time 15 25 15 25 15 25 ns
TXZ TEXQZ Output Disable Time 15 25 15 25 15 25 ns
MILITARY TEMP RANGE ( _ 55% to + 125°C)
JEDEC DM77S185 DM77S185A DM77S1858
Symbol Parameter Units
Symbol Min Typ Max Min Typ Max Min Typ Max
TAA TAVQV Address Access Time 40 70 30 60 25 50 ns
TEA TEVQV Enable Access Time 15 30 15 30 15 30 ns
TER TEXQX Enable Recovery Time 15 30 15 30 15 30 ns
TZX TEVQX Output Enable Time 15 30 15 30 15 30 ns
TXZ TEXQZ Output Disable Time 15 30 15 30 15 30 ns
Functional Description
TESTABILITY
The Schottky PROM die includes extra rows and columns of
fusable links for testing the programmability of each chip.
These test fuses are placed at the worst-case chip locations
to provide the highest possible confidence in the program-
ming tests in the final product. A ROM pattern is also per-
manently fixed in the additional circuitry and coded to pro-
vide a parity check of input address levels. These and other
test circuits are used to test for correct operation of the row
and column-select circuits and functionality of input and en-
able gates. All test circuits are available at both water and
assembled device levels to allow 100% functional and para-
metric testing at every stage of the test flow.
RELIABILITY
As with all National products, the Ti-W PROMs are subject-
ed to an on-going reliability evaluation by the Reliability As-
surance Department. These evaluations employ accelerat-
ed life tests, including dynamic high-temperature operating
life, temperature-humidity life, temperature cycling, and ther-
mal shock. To date, nearly 7.4 million Schottky Ti-W PROM
device hours have been logged, with samples in Epoxy B
molded DIP (N-package), PLCC (V-package) and CERDIP
(J-package). Device performance in all package configura-
tions is excellent.
TITANIUM-TUNGSTEN FUSES
National's Programmable Read-Only Memories (PROMs)
feature titanium-tungsten (Ti-W) fuse links designedto pro-
gram efficiently with only 10.5V applied. The high perform-
ance and reliability of these PROMs are the result of fabrica-
tion by a Schottky bipolar process, of which the titanium-
tungsten metallization is an integral part, and the use of an
on-chip programming circuit.
A major advantage of the titanium-tungsten fuse technology
is the low programming voltage of the fuse links. At 10.5V,
this virtually eliminates the need for guard-ring devices and
wide spacings required for other fuse technologies. Care is
taken, however, to minimize voltage drops across the die
and to reduce parasititts. The device is designed to ensure
that worst-case fuse operating current is low enough for
reliable long-term operation. The Darlington programming
circuit is liberally designed to insure adequate power density
for blowing the fuse links. The complete circuit design is
optimized to provide high performance over the entire oper-
ating ranges of Vcc and temperature.
SBlSL8WO/SQLSLLWG
This datasheet has been :
www.ic-phoenix.com
Datasheets for electronic components.
National Semiconductor was acquired by Texas Instruments.
corp/docs/irwestor_relations/Pr_09_23_201 1_national_semiconductor.html
This file is the datasheet for the following electronic components:
DM87S185AV - product/dm87s185av?HQS=T|-null-nulI-dscatalog-df-pf-null-wwe
DM77S185AJ - productldm77s185a]?HQS=T|—nul|-null-dscatalog-df—pf—nuII-wwe
DM77S185BJ - product/dm77s185b]?HQS=T|—nulI-null-dscatalog-df—pf—nuII-wwe
DM77S185J - product/dm77s185]?HQS=T|-nu|I-nulI—dscatalog-df—pf—nuII-wwe
DM87S185AJ - product/dm87s185a]?HQS=TI-null-nulI-dscatalog-df-pf—nuII-wwe
DM87S185J - product/dm87s185]?HQS=T|-nulI-nulI-dscatalog-df—pf—nuII-wwe
DM87S185BJ - product/dm87s185b]?HQS=T|—nulI-null-dscatalog-df—pf—nuII-wwe
DM87S185BN - product/dm87s185bn?HQS=T|-nu|I-null-dscatalog-df—pf-nuII-wwe
DM87S185BV - product/dm87s185bv?HQS=T|-null-nulI-dscatalog-df-pf-null-wwe
DM87S185AN - product/dm87s185an?HQS=T|-nu|I-nu|I-dscatalog-df—pf—nuII-wwe
DM87S185N - product/dm87s185n?HQS=T|-nulI-nulI-dscatalog-df-pf-nuIl-wwe
DM87S185V - product/dm87s185v?HQS=TI—nu|I-nuIl—dscatalog-df-pf-nulI-wwe
