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NXP Semiconductors - HEX inverting buffers

Numéro de référence HEF4049B
Description HEX inverting buffers
Fabricant NXP Semiconductors 
Logo NXP Semiconductors 





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HEF4049B fiche technique
HEF4049B
Hex inverting buffers
Rev. 9 — 18 November 2011
Product data sheet
1. General description
The HEF4049B provides six 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 VDD power supply range of 3 V to 15 V referenced to VSS
(usually ground). Unused inputs must be connected to VDD, VSS, 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
Table 1. Ordering information
All types operate from 40 C to +85 C.
Type number
Package
Name
Description
HEF4049BP
DIP16
plastic dual in-line package; 16 leads (300 mil)
HEF4049BT
SO16
plastic small outline package; 16 leads; body width 3.9 mm
Version
SOT38-4
SOT109-1

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