PI3B32X245 Datasheet, PDF (1/3 Pages) Pericom Semiconductor Corporation – 3.3V, Hot Insertion 16-Bit, 2-Port Bus Switch

PI3B32X245
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3.3V, Hot Insertion 16-Bit, 2-Port Bus Switch
Product Features
• Fast Switching Speed: 4.5ns max.
• Permits Hot Insertion
• Near-zero propagation delay
• 5Ω switches connect inputs to outputs
• Direct bus connection when switches are ON
• Ultra-low quiescent power (1.0µA typical)
– Ideally suited for notebook applications
• Industrial operating temperature: –40°C to +85°C
• TTL - compatible control of input levels
• Packages available:
– 40-pin 150 mil wide plastic BQSOP (B)
Logic Block Diagram
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Product Description
Pericom Semiconductor’s PI3B series of logic circuits are produced
using the Company’s advanced submicron CMOS technology.
The PI3B32X245 is a 3.3V,16-bit, 2-port bus switch. Two enable
signals (BEn) turn the switches on. The bus switch creates no
additional propagational delay or additional ground bounce noise.
Product Pin Configuration
NC 1
40 VCC
A0 2
39 BE1
A1 3
38 B0
A2 4
37 B1
A3 ₅
36 B2
A4 ₆
35 B3
A5 ₇
34 B4
A6 ₈ ^40-Pin ₃₃ B₅
A7 ₉
B _{32 B6}
GND 10
NC ₁₁
31 B7
30 VCC
A8 ₁₂
29 BE2
A9 ₁₃
28 B8
A10 14
27 B9
A11 ₁₅
26 B₁₀
A12 16
25 B11
A13 17
24 B12
A14 18
23 ^B13
A15 ₁₉
22 B14
GND 20
21 B15
Truth Table⁽¹⁾
Function
BEn A0–15
Disconnect
H Hi-Z
Connect
L B0–15
Notes:
1. H= High Voltage Level
L = Low Voltage Level
Hi-Z = High Impedance
Product Pin Description
Pin Name I/O
BEn
I
A0-A15
I/O
B0-B15
I/O
Description
Bus Enable Input (Active LOW)
Bus A
Bus B
1
PS8337A
03/31/99