1. General description
The 74LVT14 is a high-performance BiCMOS product designed for V
CC
operation at 3.3 V.
It is capable of transforming slowly changing input signals into sharply defined, jitter free
output signals. In addition, it has a greater noise margin than conventional inverters.
Each circuit contains a Schmitt trigger followed by a Darlington level shifter and a phase
splitter driving a TTL totem-pole output. The Schmitt trigger uses positive feedback to
effectively speed-up slow input transitions, and provide different input threshold voltages
for positive-going and negative-going inputs. The threshold differential (typically 600 mV)
is determined internally by resistor ratios and is insensitive to temperature and supply
voltage variations.
2. Features
n Different positive and negative going input threshold voltages
n Tolerant of slow input transitions
n High noise immunity
n TTL input and output switching levels
n Output capability: +32 mA/−20 mA
n Latch-up protection exceeds 500 mA per JESD78 class II level A
n ESD protection:
u HBM JESD22-A114E exceeds 2000 V
u MM JESD22-A115-A exceeds 200 V
3. Ordering information
74LVT14
3.3 V hex inverter Schmitt trigger
Rev. 02 — 25 April 2008 Product data sheet
Table 1. Ordering information
Type number Package
Temperature range Name Description Version
74LVT14D −40 °Cto+85°C SO14 plastic small outline package; 14 leads;
body width 7.5 mm
SOT108-1
74LVT14DB −40 °Cto+85°C SSOP14 plastic shrink small outline package; 14 leads;
body width 5.3 mm
SOT337-1
74LVT14PW −40 °Cto+85°C TSSOP14 plastic thin shrink small outline package; 14 leads;
body width 4.4 mm
SOT402-1
74LVT14BQ −40 °Cto+85°C DHVQFN14 plastic dual in-line compatible thermal enhanced very
thin quad flat package; no leads; 14 terminals;
body 2.5 × 4.5 × 0.85 mm
SOT762-1
