View SN74LS670D_290130.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

SN74LS670 4 x 4 Register File with 3-State Outputs
The TTL / MSI SN74LS670 is a high-speed, low-power 4 x 4 Register File organized as four words by four bits. Separate read and write inputs, both address and enable, allow simultaneous read and write operation. The 3-state outputs make it possible to connect up to 128 outputs 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.
http://onsemi.com
* * * * *
Simultaneous Read / Write Operation Expandable to 512 Words by n-Bits Typical Access Time to 20 ns 3-State Outputs for Expansion Typical Power Dissipation of 125 mW
LOW POWER SCHOTTKY
GUARANTEED OPERATING RANGES
Symbol VCC TA IOH IOL Parameter Supply Voltage Operating Ambient Temperature Range Output Current - High Output Current - Low Min 4.75 0 Typ 5.0 25 Max 5.25 70 - 2.6 24 Unit V C mA mA
16 1
PLASTIC N SUFFIX CASE 648
16 1
SOIC D SUFFIX CASE 751B
ORDERING INFORMATION
Device SN74LS670N SN74LS670D Package 16 Pin DIP 16 Pin Shipping 2000 Units/Box 2500/Tape & Reel
(c) Semiconductor Components Industries, LLC, 1999
1
December, 1999 - Rev. 6
Publication Order Number: SN74LS670/D
SN74LS670
CONNECTION DIAGRAM DIP (TOP VIEW)
VCC 16 D1 15 WA 14 WB 13 EW 12 ER 11 Q1 10 Q2 9 NOTE: The Flatpak version has the same pinouts (Connection Diagram) as the Dual In-Line Package. 1 D2 2 D3 3 D4 4 RB 5 RA 6 Q4 7 Q3 8 GND
LOADING (Note a) PIN NAMES D1 - D4 WA, WB EW RA, RB ER Q1 - Q4 Data Inputs Write Address Inputs Write Enable (Active LOW) Input Read Address Inputs Read Enable (Active LOW) Input Outputs HIGH 0.5 U.L. 0.5 U.L. 1.0 U.L. 0.5 U.L. 1.5 U.L. 65 U.L. LOW 0.25 U.L. 0.25 U.L. 0.5 U.L. 0.25 U.L. 0.75 U.L. 15 U.L.
NOTES: a) 1 TTL Unit Load (U.L.) = 40 mA HIGH/1.6 mA LOW.
LOGIC SYMBOL
12 14 13 5 4 WA EW WB RA RB ER 11 15 1 2 3 D1 D2 D3 D4
Q1 Q2 Q3 Q4 10 9 7 6
VCC = PIN 16 GND = PIN 8
http://onsemi.com
2
SN74LS670
LOGIC DIAGRAM
D4
12 3
D3
2
D2
1
D1
15
EW
13
WB
14
WA WORD 0 G Q D G Q D G Q D G Q D
G Q
D
G Q
D
G Q
D
G Q
D
WORD 1
WORD 2 G Q D G Q D G Q D G Q D
WORD 3 G Q
4
D
G Q
D
G Q
D
G Q
D
RB
11
ER
5
RA
6
7
9
10
Q4
Q3 VCC = PIN 16 GND = PIN 8 = PIN NUMBERS
Q2
Q1
http://onsemi.com
3
SN74LS670
DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified)
Limits Symbol VIH VIL VIK VOH Parameter Input HIGH Voltage Input LOW Voltage Input Clamp Diode Voltage Output HIGH Voltage 2.4 - 0.65 3.1 0.25 VO OL IOZH IOZL Output LOW Voltage 0.35 Output Off Current HIGH Output Off Current LOW Input HIGH Current D, R, W EW ER D, R, W EW ER Input LOW Current D, R, W EW ER Short Circuit Current (Note 1) Power Supply Current - 30 0.5 20 -20 20 40 60 0.1 0.2 0.3 - 0.4 - 0.8 -1.2 - 130 50 V A A A IOL = 24 mA 0.4 Min 2.0 0.8 - 1.5 Typ Max Unit V V V V V Test Conditions Guaranteed Input HIGH Voltage for All Inputs Guaranteed Input LOW Voltage for All Inputs VCC = MIN, IIN = - 18 mA VCC = MIN, IOH = MAX, VIN = VIH or VIL per Truth Table IOL = 12 mA VCC = VCC MIN, VIN = VIL or VIH per Truth Table
VCC = MAX, VO = 2.7 V VCC = MAX, VO = 0.4 V
VCC = MAX, VIN = 2.7 V
IIH
mA
VCC = MAX, VIN = 7.0 V
IIL
mA
VCC = MAX, VIN = 0.4 V
IOS ICC
mA mA
VCC = MAX VCC = MAX
Note 1: Not more than one output should be shorted at a time, nor for more than 1 second.
http://onsemi.com
4
SN74LS670
AC CHARACTERISTICS (TA = 25C)
Limits Symbol tPLH tPHL tPLH tPHL tPLH tPHL tPZH tPZL tPLZ tPHZ Parameter Propagation Delay, RA or RB to Output Propagation Delay, EW to Output Propagation Delay, Data to Output Output Enable Time Output Disable Time Min Typ 23 25 26 28 25 23 15 22 16 30 Max 40 45 45 50 45 40 35 40 35 50 Unit ns ns ns ns ns CL = 5.0 pF VCC = 5.0 V, CL = 45 pF Test Conditions
AC SETUP REQUIREMENTS (TA = 25C)
Limits Symbol tW ts ts th th trec Parameter Pulse Width Setup Time, (D) Setup Time, (W) Hold Time, (D) Hold Time, (W) Recovery Time Min 25 10 15 15 5.0 25 Typ Max Unit ns ns ns ns ns ns VCC = 5 0 V 5.0 Test Conditions
AC WAVEFORMS
D, EW
1.3 V tPHL
1.3 V tPLH 1.3 V 1.3 V
RA, RB
1.3 V tPHL
1.3 V tPLH 1.3 V 1.3 V
Q
Q
Figure 1.
Figure 2.
WA, WB
1.3 V ts
1.3 V th 1.3 V 1.3 V ts th 1.3 V
D tW EW 1.3 V
Figure 3.
http://onsemi.com
5
SN74LS670
PACKAGE DIMENSIONS
N SUFFIX PLASTIC PACKAGE CASE 648-08 ISSUE R
-A-
16 9 NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. DIMENSION L TO CENTER OF LEADS WHEN FORMED PARALLEL. 4. DIMENSION B DOES NOT INCLUDE MOLD FLASH. 5. ROUNDED CORNERS OPTIONAL. DIM A B C D F G H J K L M S INCHES MIN MAX 0.740 0.770 0.250 0.270 0.145 0.175 0.015 0.021 0.040 0.70 0.100 BSC 0.050 BSC 0.008 0.015 0.110 0.130 0.295 0.305 0_ 10 _ 0.020 0.040 MILLIMETERS MIN MAX 18.80 19.55 6.35 6.85 3.69 4.44 0.39 0.53 1.02 1.77 2.54 BSC 1.27 BSC 0.21 0.38 2.80 3.30 7.50 7.74 0_ 10 _ 0.51 1.01
B
1 8
F S
C
L
-T- H G D
16 PL
SEATING PLANE
K
J TA
M
M
0.25 (0.010)
M
http://onsemi.com
6
SN74LS670
PACKAGE DIMENSIONS
D SUFFIX PLASTIC SOIC PACKAGE CASE 751B-05 ISSUE J
-A-
NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: MILLIMETER. 3. DIMENSIONS A AND B DO NOT INCLUDE MOLD PROTRUSION. 4. MAXIMUM MOLD PROTRUSION 0.15 (0.006) PER SIDE. 5. DIMENSION D DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.127 (0.005) TOTAL IN EXCESS OF THE D DIMENSION AT MAXIMUM MATERIAL CONDITION. MILLIMETERS MIN MAX 9.80 10.00 3.80 4.00 1.35 1.75 0.35 0.49 0.40 1.25 1.27 BSC 0.19 0.25 0.10 0.25 0_ 7_ 5.80 6.20 0.25 0.50 INCHES MIN MAX 0.386 0.393 0.150 0.157 0.054 0.068 0.014 0.019 0.016 0.049 0.050 BSC 0.008 0.009 0.004 0.009 0_ 7_ 0.229 0.244 0.010 0.019
16
9
-B-
1 8
P
8 PL
0.25 (0.010)
M
B
S
G F
K C -T-
SEATING PLANE
R
X 45 _
M D
16 PL M
J
0.25 (0.010)
TB
S
A
S
DIM A B C D F G J K M P R
http://onsemi.com
7
SN74LS670
ON Semiconductor and are trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. "Typical" parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including "Typicals" must be validated for each customer application by customer's technical experts. SCILLC does not convey any license under its patent rights nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer.
PUBLICATION ORDERING INFORMATION
North America Literature Fulfillment: Literature Distribution Center for ON Semiconductor P.O. Box 5163, Denver, Colorado 80217 USA Phone: 303-675-2175 or 800-344-3860 Toll Free USA/Canada Fax: 303-675-2176 or 800-344-3867 Toll Free USA/Canada Email: ONlit@hibbertco.com N. American Technical Support: 800-282-9855 Toll Free USA/Canada EUROPE: LDC for ON Semiconductor - European Support German Phone: (+1) 303-308-7140 (M-F 2:30pm to 5:00pm Munich Time) Email: ONlit-german@hibbertco.com French Phone: (+1) 303-308-7141 (M-F 2:30pm to 5:00pm Toulouse Time) Email: ONlit-french@hibbertco.com English Phone: (+1) 303-308-7142 (M-F 1:30pm to 5:00pm UK Time) Email: ONlit@hibbertco.com ASIA/PACIFIC: LDC for ON Semiconductor - Asia Support Phone: 303-675-2121 (Tue-Fri 9:00am to 1:00pm, Hong Kong Time) Toll Free from Hong Kong 800-4422-3781 Email: ONlit-asia@hibbertco.com JAPAN: ON Semiconductor, Japan Customer Focus Center 4-32-1 Nishi-Gotanda, Shinagawa-ku, Tokyo, Japan 141-8549 Phone: 81-3-5487-8345 Email: r14153@onsemi.com Fax Response Line: 303-675-2167 800-344-3810 Toll Free USA/Canada ON Semiconductor Website: http://onsemi.com For additional information, please contact your local Sales Representative.
http://onsemi.com
8
SN74LS670/D

▲Up To Search▲

Price & Availability of SN74LS670D

	To Download SN74LS670D Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .