Datasheet
1. General 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 Table 3
.
It operates over a recommended V
DD
power supply range of 3 V to 15 V referenced to V
SS
(usually ground). Unused inputs must be connected to V
DD
, V
SS
, or another input.
2. Features and benefits
Accepts input voltages in excess of the supply voltage
Fully static operation
5 V, 10 V, and 15 V parametric ratings
Standardized symmetrical output characteristics
Specified from 40 C to +85 C
Complies with JEDEC standard JESD 13-B
3. Applications
LOCMOS (Local Oxidation CMOS) to DTL/TTL converter
HIGH sink current for driving two TTL loads
HIGH-to-LOW level logic conversion
4. Ordering information
HEF4050B
Hex non-inverting buffers
Rev. 8 — 18 November 2011 Product data sheet
Table 1. Ordering information
All types operate from
40
C to +85
C.
Type number Package
Name Description Version
HEF4050BP DIP16 plastic dual in-line package; 16 leads (300 mil) SOT38-4
HEF4050BT SO16 plastic small outline package; 16 leads; body width 3.9 mm SOT109-1