MAX328/MAX329
Ultra-Low Leakage Monolithic CMOS
Analog Multiplexers
6 _______________________________________________________________________________________
PIN
MAX328 MAX329
DIP/SO TQFN-EP DIP/SO TQFN-EP
NAME FUNCTION
1, 15, 16 15, 14, 13 — — A0, A2, A1 Address Input
— — 1, 16 15, 14 A0, A1 Address Input
2 16 2 16 EN Enable
3 1 3 1 V- Negative-Supply Voltage Input
4–7 2–5 — — S1–S4 Analog Inputs—Bidirectional
— — 4–7 2–5 S1A–S4A Analog Inputs—Bidirectional
8 6 — — D Analog Outputs—Bidirectional
— — 8, 9 6, 7 DA, DB Analog Outputs—Bidirectional
9–12 7–10 — — S8–S5 Analog Inputs—Bidirectional
— — 10–13 8–11 S4B–S1B Analog Inputs—Bidirectional
13 11 14 12 V+ Positive-Supply Voltage Input
14 12 15 13 GND Ground
— — — — EP Exposed pad. Connect EP to V+. (TQFN only).
Pin Description
Truth Table—MAX328
A2 A1 A0 EN
ON
SWITCH
X X X 0 None
0 0 0 1 1
0 0 1 1 2
0 1 0 1 3
0 1 1 1 4
1 0 0 1 5
1 0 1 1 6
1 1 0 1 7
1 1 1 1 8
A1 A0 EN
ON
SWITCH
X X 0 None
0 0 1 1
0 1 1 2
1 0 1 3
1 1 1 4
Note: Logic “0” = V
AL
≤ 0.8V, Logic “1” = V
AH
≥ 2.4V