1. General description
The 74HC2G66; 74HCT2G66 is a dual single pole, single-throw analog switch. Each
switch has two input/output terminals (nY and nZ) and a digital enable input (nE). When
nE is LOW, the analog switch is turned off. Inputs include clamp diodes. This enables the
use of current limiting resistors to interface inputs to voltages in excess of V
CC
.
2. Features and benefits
Wide supply voltage range from 2.0 V to 10.0 V for 74HC2G66
Very low ON resistance:
41 (typ.) at V
CC
=4.5V
30 (typ.) at V
CC
=6.0V
21 (typ.) at V
CC
=9.0V
High noise immunity
Low power dissipation
25 mA continuous switch current
Multiple package options
ESD protection:
HBM JESD22-A114F exceeds 2000 V
MM JESD22-A115-A exceeds 200 V
Specified from 40 Cto+85C and 40 Cto+125C
3. Ordering information
74HC2G66; 74HCT2G66
Dual single-pole single-throw analog switch
Rev. 10 — 3 October 2013 Product data sheet
Table 1. Ordering information
Type number Package
Temperature range Name Description Version
74HC2G66DP 40 C to +125 C TSSOP8 plastic thin shrink small outline package; 8
leads; body width 3 mm; lead length 0.5 mm
SOT505-2
74HCT2G66DP
74HC2G66DC 40 C to +125 C VSSOP8 plastic very thin shrink small outline package; 8
leads; body width 2.3 mm
SOT765-1
74HCT2G66DC
74HC2G66GT 40 C to +125 C XSON8 plastic extremely thin small outline package;
no leads; 8 terminals; body 1 1.95 0.5 mm
SOT833-1
74HCT2G66GT
74HC2G66GD 40 C to +125 C XSON8 plastic extremely thin small outline package;
no leads; 8 terminals; body 3 2 0.5 mm
SOT996-2
74HCT2G66GD
