SN74LS670D datasheet, PDF - EEWORLD Datasheet

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SN74LS670D: Description4 X 4 STANDARD SRAM, 45 ns, PDIP16; Categorystorage storage; File Size109KB，6 Pages; ManufacturerMotorola ( NXP ); Websitehttps://www.nxp.com

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SN74LS670D Overview

4 X 4 STANDARD SRAM, 45 ns, PDIP16

SN74LS670D Parametric

Parameter Name	Attribute value
Maker	Motorola ( NXP )
Parts packaging code	SOIC
package instruction	SOP, SOP16,.25
Contacts	16
Reach Compliance Code	unknow
ECCN code	EAR99
Maximum access time	45 ns
JESD-30 code	R-PDSO-G16
JESD-609 code	e0
length	9.9 mm
memory density	16 bi
Memory IC Type	STANDARD SRAM
memory width	4
Number of functions	1
Number of ports	1
Number of terminals	16
word count	4 words
character code	4
Operating mode	ASYNCHRONOUS
Maximum operating temperature	70 °C
Minimum operating temperature
organize	4X4
Output characteristics	3-STATE
Exportable	NO
Package body material	PLASTIC/EPOXY
encapsulated code	SOP
Encapsulate equivalent code	SOP16,.25
Package shape	RECTANGULAR
Package form	SMALL OUTLINE
Parallel/Serial	PARALLEL
power supply	5 V
Certification status	Not Qualified
Maximum seat height	1.75 mm
Maximum supply voltage (Vsup)	5.25 V
Minimum supply voltage (Vsup)	4.75 V
Nominal supply voltage (Vsup)	5 V
surface mount	YES
technology	TTL
Temperature level	COMMERCIAL
Terminal surface	Tin/Lead (Sn/Pb)
Terminal form	GULL WING
Terminal pitch	1.27 mm
Terminal location	DUAL
width	3.9 mm

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SN54/74LS670

4 x 4 REGISTER FILE

WITH 3-STATE OUTPUTS

The TTL / MSI SN54 / 74LS670 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 in-

crease the word capacity up to 512 words. Any number of these devices can

be operated in parallel to generate an n-bit length.

The SN54 / 74LS170 provides a similar function to this device but it features

open-collector outputs.

4 x 4 REGISTER FILE

WITH 3-STATE OUTPUTS

LOW POWER SCHOTTKY

•

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

J SUFFIX

CERAMIC

CASE 620-09

CONNECTION DIAGRAM DIP

(TOP VIEW)

VCC

NOTE:

The Flatpak version

has the same pinouts

(Connection Diagram) as

the Dual In-Line Package.

N SUFFIX

PLASTIC

CASE 648-08

D SUFFIX

SOIC

CASE 751B-03

GND

ORDERING INFORMATION

PIN NAMES

LOADING (Note a)

HIGH

D1 – D4

WA, WB

RA, RB

Q1 – Q4

Data Inputs

Write Address Inputs

Write Enable (Active LOW) Input

Read Address Inputs

Read Enable (Active LOW) Input

Outputs (Note b)

0.5 U.L.

1.0 U.L.

0.5 U.L.

1.5 U.L.

65 (25) U.L.

LOW

0.25 U.L.

0.5 U.L.

0.25 U.L.

0.75 U.L.

15 (7.5) U.L.

SN54LSXXXJ

SN74LSXXXN

SN74LSXXXD

Ceramic

Plastic

SOIC

LOGIC SYMBOL

WA EW

RB E

15 1

NOTES:

a) 1 TTL Unit Load (U.L.) = 40

µA

HIGH/1.6 mA LOW.

b) The Output LOW drive factor is 7.5 U.L. for Military (54) and 15 U.L. for Commercial

(74) Temperature Ranges. The Output HIGH drive factor is 25 U.L. for Military and

65 U.L. for Commercial Temperature Ranges.

D1 D2 D3 D4

Q1 Q2 Q3 Q4

10 9 7

VCC = PIN 16

GND = PIN 8

FAST AND LS TTL DATA

5-597

SN74LS670D Related Products

	SN74LS670D	74LS670	SN54LS670
Description	4 X 4 STANDARD SRAM, 45 ns, PDIP16	4 X 4 STANDARD SRAM, 45 ns, PDIP16	4 X 4 STANDARD SRAM, 45 ns, PDIP16
memory width	4	4	4
Number of functions	1	1	1
Number of terminals	16	16	16
Maximum operating temperature	70 °C	70 Cel	70 Cel
Minimum operating temperature	-	0.0 Cel	0.0 Cel
organize	4X4	4 X 4	4 X 4
Temperature level	COMMERCIAL	COMMERCIAL	COMMERCIAL
Terminal form	GULL WING	THROUGH-HOLE	THROUGH-HOLE
Terminal location	DUAL	DUAL	DUAL
Maximum supply/operating voltage	-	5.25 V	5.25 V
Minimum supply/operating voltage	-	4.75 V	4.75 V
Rated supply voltage	-	5 V	5 V
maximum access time	-	45 ns	45 ns
Processing package description	-	ROHS COMPLIANT, PLASTIC, MS-001, DIP-16	ROHS COMPLIANT, PLASTIC, MS-001, DIP-16
Lead-free	-	Yes	Yes
EU RoHS regulations	-	Yes	Yes
China RoHS regulations	-	Yes	Yes
state	-	ACTIVE	ACTIVE
Craftsmanship	-	TTL	TTL
packaging shape	-	RECTANGULAR	RECTANGULAR
Package Size	-	IN-LINE	IN-LINE
Terminal spacing	-	2.54 mm	2.54 mm
terminal coating	-	NICKEL PALLADIUM GOLD	NICKEL PALLADIUM GOLD
Packaging Materials	-	PLASTIC/EPOXY	PLASTIC/EPOXY
storage density	-	16 deg	16 deg
operating mode	-	ASYNCHRONOUS	ASYNCHRONOUS
Number of digits	-	4	4
Memory IC type	-	STANDARD SRAM	STANDARD SRAM
serial parallel	-	PARALLEL	PARALLEL

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