© 1999 Fairchild Semiconductor Corporation

DS005214

www.fairchildsemi.com

February 1984

Revised October 1999

MM74HC4049 • MM74HC4050

Hex Inverting Logic Level Down Converter •

Hex Logic Level Down Converter

General Description

The

MM74HC4049

and

the

MM74HC4050

utilize

advanced silicon-gate CMOS technology, and have a mod-

ified input protection structure that enables these parts to

be used as logic level translators which will convert high

level logic to a low level logic while operating from the low

logic supply. For example, 0–15V CMOS logic can be con-

verted to 0–5V logic when using a 5V supply. The modified

ing the input voltage to exceed the supply. The lower zener

diode protects the input from both positive and negative

static voltages. In addition each part can be used as a sim-

ple buffer or inverter without level translation. The

MM74HC4049 is pin and functionally compatible to the

CD4049BC and the MM74HC4050 is compatible to the

CD4050BC

Features

s Typical propagation delay: 8 ns

s Wide power supply range: 2V–6V

s Low quiescent supply current: 20

µA maximum (74HC)

s Fanout of 10 LS-TTL loads

Ordering Code:

Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.

Connection Diagrams

MM74HC4049

MM74HC4050

Order Number

Package Number Package Description

MM74HC4049M

M16A

16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150” Narrow

MM74HC4049SJ

M16D

16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide

MM74HC4049MTC

MTC16

16-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153. 4.4mm Wide

MM74HC4049N

N16E

16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300” Wide

MM74HC4050M

M16A

16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150” Narrow

MM74HC4050SJ

M16D

16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide

MM74HC4050MTC

MTC16

16-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153. 4.4mm Wide

MM74HC4050N

N16E

16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300” Wide