Model: 643-938

Digital Microcircuit

Properties:

Body Length
0.785 inches
Body Width
Between 0.220 inches and 0.310 inches
Body Height
Between 0.140 inches and 0.185 inches
Maximum Power Dissipation Rating
38.5 milliwatts
Operating Tempurature Range
-55.0/+125.0 degrees celsius
Storage Tempurature Range
-65.0/+150.0 degrees celsius
Features Provided
Hermetically sealed and monolithic and positive outputs and low power and schottky
Inclosure Material
Ceramic and glass
Inclosure Configuration
Dual-in-line
Output Logic Form
Transistor-transistor logic
Input Circuit Pattern
Dual 4 input
Design Function And Quantity
2 schmitt trigger and 2 gate, nand
Case Outline Source And Designator
D-1 mil-m-38510
Terminal Surface Treatment
Solder
Voltage Rating And Type Per Characteristic
5.5 volts power source
Test Data Document
81349-mil-m-38510 specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.).
Terminal Type And Quantity
14 printed circuit
Specification Data
81349-mil-m-38510/313 government specification
NSN
5962-01-075-6890
Part Number
643-938
Description
Microcircuit,digital
CAGE
K2504

A microcircuit specifically designed to generate, modify, or process electrical signals which operate with two distinct or binary states. These states are commonly referred to as on and off, true and false, high and low, or "1" and "0".

Part 643-938 NSN 5962-01-075-6890

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
31779
FIIG:
A458A0
Concept No.:
1
App. Key:
A
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
A
ESD:
B
ESD:
B
MMAC:
EH
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
061700
UFC:
34580
LTL:
RATING VARIABLE
LCL:
77.5
WCC:
72D
TCC:
Z
SHC:
9
ACC:
Instruments/Radio

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Schedule B and Export
  • Schedule B: 8542900000
  • SITC: 77689
  • End Use: Semiconductors
  • NAICS: 334413
  • USDA: 1

Freight Class: Electronic integrated circuits and microassembly parts

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