PI3B3253 Datasheet, PDF (1/5 Pages) Pericom Semiconductor Corporation – Mux/DeMux NanoSwitch™

Features
• Near-Zero propagation delay
• 5Ω switches connect inputs to outputs
• Fast Switching Speed: 5.2ns max.
• Ultra Low Quiescent Power (0.2µA typical)
– Ideally suited for notebook applications
• Pin compatible with 74 series 253 logic devices
• Packaging (Pb-free & Green available):
– 16-pin 150-mil wide plastic QSOP (Q)
– 16-pin 150-mil wide plastic SOIC (W)
– 16-pin 173-mil wide plastic TSSOP (L)
Block Diagram
PI3B3253
3.3V, Dual 4:1
Mux/DeMux NanoSwitch^™
Description
Pericom Semiconductor’s PI3B3253 is a 3.3V, Dual4:1 Multi-
plexer/ Demultiplexer with Hi-Z outputs that is pinout compatible
with the PI74FCT253T, 74F253, and 74ALS/AS/LS 253. Inputs
can be connected to outputs with low On-Resistance (5Ω) with no
additional ground bounce noise or propagation delay.
Pin Configuration
IA0 IA1 IA2 IA3 IB0 IB1 IB2 IB3
SW
EA
SW
SW
EB
SW
S0
SW
SW
I
Y
EA
1
S1
2
IA3
3
IA2
4
IA1
5
16
V_CC
15 EB
14 S0
13 IB3
12 IB2
S1
SW
E
IA0 6
11 IB1
SW
YA 7
10 IB0
SW
GND
8
9
YB
YA
YB
Truth Table⁽¹⁾
Enable
E_A
E_B
Select
S₁ S₀
Y_A Y_B
Function
H
X
X X Hi-Z X
Disable A
X
H
X X X Hi-Z Disable B
L
L
L
L _IA_{0 I}B₀
S1-0 = 0
L
L
L
H _IA_{1 I}B₁
S1-0 = 1
L
L
H
L _IA_{2 I}B₂
S1-0 = 2
L
L
H
H _IA_{3 I}B₃
S1-0 = 3
Note:
1. H = High Voltage Level, L = Low Voltage Level
Pin Description
Pin Name
Description
I^AN^, I^BN
Data Inputs
S_0-1
Select Inputs
E_A, E_B
Enable
Y_A, Y_B
Data Outputs
GND
Ground
V_CC
Power
1
PS8147G
09/09/04