DM74170N ,7 V, 4 x 4 register file woth open-collector outputNational
Semiconductor
54170/DM74170
4 x 4 Register File
with Open-Collector Outputs
Gener ..
DM74173N ,TRI-STATE Quad RegistersFeaturesYGated enable inputs are provided for controlling the entry of TRI-STATE outputs interface ..
DM74174N , Hex D-Type Flip-Flop with ClearFeaturesY174 contains six flip-flops with single-rail outputsThese positive-edge triggered flip-flo ..
DM74174N , Hex D-Type Flip-Flop with Clear54174/DM54174/DM74174,54175/DM54175/DM74175Hex/QuadDFlip-FlopswithClearJune198954174/DM54174/DM7417 ..
DM74175N ,Hex/Quad D Flip-Flops with Clearfeatures complementary YBuffered clock and direct clear inputsoutputs from each flip-flop.YIndividu ..
DM7417M ,Hex Buffers with High Voltage Open-Collector OutputsGeneral Description Pull-Up Resistor EquationsThis device contains six independent gates each of wh ..
DS1744-70 ,Y2K-Compliant, Nonvolatile Timekeeping RAMsFEATURES PIN CONFIGURATIONS Integrated NV SRAM, Real-Time Clock, TOP VIEW Crystal, Power-Fail C ..
DS1744-70+ ,Y2K-Compliant, Nonvolatile Timekeeping RAMsFEATURES PIN CONFIGURATIONS Integrated NV SRAM, Real-Time Clock, TOP VIEW Crystal, Power-Fail C ..
DS1744-70+ ,Y2K-Compliant, Nonvolatile Timekeeping RAMsPIN DESCRIPTION A0–A14 - Address Input CE - Chip Enable OE - Output Enable WE - Write Enable V ..
DS1744-70IND ,Y2K-Compliant, Nonvolatile Timekeeping RAMsFEATURES PIN CONFIGURATIONS Integrated NV SRAM, Real-Time Clock, TOP VIEW Crystal, Power-Fail C ..
DS1744-70IND+ ,Y2K-Compliant, Nonvolatile Timekeeping RAMs DS1744/DS1744P Y2K-Compliant, Nonvolatile Timekeeping RAMs
DS1744P-70 ,Y2K-Compliant, Nonvolatile Timekeeping RAMsPIN DESCRIPTION A0–A14 - Address Input CE - Chip Enable OE - Output Enable WE - Write Enable V ..
DM74170N
7 V, 4 x 4 register file woth open-collector output
gif Natiqnal
Semiconductor
54170/DM74170
4 It 4 Register File
with Open-Collector Outputs
General Description
The '170 contains 16 high speed, low power. transparent
D-type latches arranged as four words of four bits each, to
function as a 4 x 4 register file. Separate read and write
inputs, both address and enable. allow simultaneous read
and write operation. Open-collector outputs make it possible
to connect up to 128 outputs in a wired-AND configuration
to increase the word capacity up to 512 words. Any number
of these devices can be operated in parallel to generate an
n-bit length.
Connection Diagram Logic Symbol
DuttlAttNrte Package 3 'i' i i i
02-l 16 -a 14 mo“ 01 oz 03 "
03- 2 15 ~01 Ir-' m
04- 3 14 -WAt) _ ttho
m - 4 13 ~wm
- 4--. m
oo- 5 12 -WE RE 01 02 03 04
04- s 11 ~13: tit I I I I
03-7 10 -0t tl IO 9 7 6
tml)- tt 9 -02 Vac = Plnt6
GND == PInB
TL/F/8733-1
Order Number 54170DMQB, 54170FMQB or DM74170N
See NS Package Number J16A, N16E and W16A
Pln Names Dowlpuon
D1-D4 Data Inputs
WAD, WA1 Write Address Inputs
WE Write Enable Input (Active LOW)
RAO-RA1 Read Address Inputs
FTE Read Enabte Input (Active LOW)
o1-04 Data Outputs
TUF/9783-2
Absolute Maximum Ratings
If MllltaryfAerotrpaee ttpetrified devices are required,
please contact the National Stmtlttondutttor Salas
offleefDlstrmttortt for avaliablllty and apeelfleatlorta.
Supply Voltage 7V
Input Voltage 5.5V
Operating Free Air Temperature Range
54 -55'C to + 125°C
DM74 0'C to + 70°C
Storage Temperature Range -65'C to + 150°C
Recommended Operating Conditions
Note: The "Absolute Maximum Ratings" are those values
beyond which the safety of the device cannot be guttran-
teed. The device should not be operated at these limits. The
parametric values defined in the "Electrical Characteristics"
table are not guaranteed at the absolute maximum ratings.
The "Recommended Operating Conditions" table will define
the conditions far actual device operation.
Symbol Parameter 54170 DM74170 Units
Mln Nom Max Mln Nom Max
Vcc Supply Voltage 4.5 5 5.5 4.75 5 5.25 V
w, High Level Input Voltage 2 2 V
" Low Level Input Voltage 0.8 0.8 V
VOH High Level Output Voltage 5.5 V
IOL Low Level Output Current 16 16 mA
TA Free Air Operating Temperature - 55 125 0 70 ''C
ts Setup Time HIGH or LOW
Dn to Rising WT: IO 10 ns
tn Hold Time HiGH or LOW
Dn to Rising Wit" 15 15 ns
ts Setup Time HIGH or LOW
WAn to Falling WE 15 15 ns
th Hold Time HIGH or LOW
WAn to Rising WE so 5.0 ns
tw (L) WT: or P_E Pulse Width LOW 25 25 03
Electrical Characteristics
Over recommended operating free air temperature range (unless otherwise noted)
Symbol Parameter Conditions Min Typ Max Unite
(Note 1)
V. Input Clamp Voltage Vcc = Min, l, = -12 mA -1.5 V
IOH High Level Output Current Vcc = Min, VOH = Max
" = Max
VOL Low Level OutputVoItage Vcc = Mun, kn. = Max 0.2 0.4 V
Ihr; = Min
ll InputCurrent © Max Vcc = Max, VI == 5.5V
Input Voltage
IIH High Level lnputCurrent Vcc = Max, V. = 2.4V 40 pA
kr. Low Level Input Current VCC = Max, lh = 0.4V -1.6 mA
lcc Supply Current Vcc = Max, RAn = ov 54 140 m A
On, WE, AE = 4.5V DM74 150
Note 1: All typical: are at Voc = 5V, TA = 25'C.
Switching Characteristics
Vcc = + 5.0V, TA == + 25''C (See Section 2 for waveforms and load configurations)
54IDM74
Symbol Parameter t : 'dll' Unlts
Min Max
tpLH Propagation Delay' 35 ns
tPHL RAo or RA1 to On 40
tpLH ?gpagation Delay 15 ns
tpHL RE to On 30
tpLH ..e.repagation Delay 40 ns
tPHL WE to On 45
tpLH Propagation Delay 30 ns
tpHL On to On 45
'Measured at least 25 ns alter entry of new data at saiectod location.
Timing Waveforms
WAO, WA1
V =1.5V
m (1.3V for LS)
TL/Fti9N3-4
Logic Diagram
mo --tre
tr G D D
D G tt 6 D D
"a-ac)-
TL/F/9783-3
Write Functlon Table Read Function Table
- Write Inputs D Inputs To - Read Inputs Outputs From
WE WA, WAo RE RA1 RAa
L L L Word 0 L L L Word 0
L L H Word 1 L L H Word 1
L H L Word 2 L H L Word 2
L H H Word 3 L H H Word 3
H X X None (Hold) H X X None (HIGH 2)
H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial
This datasheet has been :
www.ic-phoenix.com
Datasheets for electronic components.
National Semiconductor was acquired by Texas Instruments.
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This file is the datasheet for the following electronic components:
54170DMQB - product/54170dmqb?HQS=T|-nu|I-nu|I-dscatalog-df-pf-null-wwe
54170FMQB - product/54170fmqb?HQS=T|-nu|I-nu|I-dscatalog-df-pf-nulI-wwe
DM74170N - product/dm74170n?HQS=TI-nulI-null-dscataIog-df-pf-null-wwe
