hef4050b NXP Semiconductors, hef4050b Datasheet - Page 2

• Manufacturer Part Number: hef4050b
• Description: Hex Non-inverting Buffers
• Manufacturer: NXP Semiconductors

Philips Semiconductors
DESCRIPTION
The HEF4050B provides six non-inverting buffers with
high current output capability suitable for driving TTL or
high capacitive loads. Since input voltages in excess of the
buffers’ supply voltage are permitted, the buffers may also
be used to convert logic levels of up to 15 V to standard
TTL levels. Their guaranteed fan-out into common bipolar
logic elements is shown in the table below.
Guaranteed fan-out in common logic families
January 1995
standard TTL
74 LS
74 L
HEX non-inverting buffers
DRIVEN ELEMENT
Fig.3 Logic diagram (one gate).
Fig.1 Functional diagram.
GUARANTEED
FAN-OUT
16
2
9
2
APPLICATION INFORMATION
Some examples of applications for the HEF4050B are:
Input protection
FAMILY DATA, I
See Family Specifications
HEF4050BP(N): 16-lead DIL; plastic
HEF4050BD(F): 16-lead DIL; ceramic (cerdip)
HEF4050BT(D): 16-lead SO; plastic
( ): Package Designator North America
LOCMOS to DTL/TTL converter
HIGH sink current for driving 2 TTL loads
HIGH-to-LOW level logic conversion
Fig.4
Input protection circuit that allows input
voltages in excess of V
DD
Fig.2 Pinning diagram.
LIMITS category BUFFERS
(SOT38-1)
(SOT74)
(SOT109-1)
DD
Product specification
.
HEF4050B
buffers