PI5C3253 Datasheet, PDF (1/6 Pages) Pericom Semiconductor Corporation – Dual 4:1 Mux/DeMux Bus Switch

PI5C3253
Dual 4:1 Mux/DeMux Bus Switch
Features
• Near-Zero propagation delay
• 5Ω switches connect inputs to outputs
• Direct bus connection when switches are ON
• 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 300-mil wide plastic SOIC (S)
– 16-pin 150-mil wide plastic SOIC (W)
– 16-pin 173-mil wide plastic TSSOP (L)
Description
Pericom Semiconductor’s PI5C3253 is a Dual 4:1 Multiplexer/
demultiplexer with three-state 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.
Block Diagram
IA0 IA1 IA2 IA3 IB0 IB1 IB2 IB3
EA
EB
S0
S1
YA
YB
Pin Configuration
EA 1
S1 2
IA3 3
IA2 4
IA1
5
IA0 6
YA
7
GND 8
16 VCC
15 EB
14 S0
13 IB3
12 IB2
11 IB1
10 IB0
9 YB
Truth Table⁽¹⁾
Enable
Select
EA EB S1 S0 YA YB
Function
H X X X Hi-Z X
Disable A
X H X X X Hi-Z Disable B
L L L L IA0 IB0
S1-0 = 0
L L L H IA1 IB1
S1-0 = 1
L L H L IA2 IB2
S1-0 = 2
L L H H IA3 IB3
S1-0 = 3
Note:
1. H = High Voltage Level, L = Low Voltage Level
Pin Description
Pin Name
IAn, IBn
S0–1
EA, EB
YA, YB
GND
V_CC
Description
Data Inputs
Select Inputs
Enable
Data Outputs
Ground
Power
1
PS7017C
09/14/04