PI3B16245 Datasheet, PDF (1/3 Pages) Pericom Semiconductor Corporation – 3.3V, 16-Bit, 2-Port NanoSwitch™

PI3B16245
PI3B162245 (25Ω) _{1122334455667788990011223344556677889900112233445566778899001122112233445566778899001122334455667788990011223344556677889900112211223344556677889900112233445566778899001122334455667788990011221122334455667788990011223344556677889900112233445566778899001122112233445566778899001122}
3.3V, Hot Insertion, 16-Bit, 2-Port BusSwitch
Product Features
• Near-zero propagation delay
• 5Ω switches connect inputs to outputs
• Fast Switching Speed - 4ns max.
• Permits Hot Insertion
• Pin compatible with 74 series16245
• Operating Vcc Range: 3.0V to 3.6V
• Industrial operating temperature: –40°C to +85°C
• Packages available:
– 48-pin 240 mil wide thin plastic TSSOP (A)
– 48-pin 300 mil wide plastic SSOP (V)
Logic Block Diagram
Product Description
Pericom Semiconductor’s PI3B series of logic circuits are produced
using the Company’s advanced 0.35 micron CMOS technology.
The PI3B16245 and PI3B162245 are 3.3 volt, hot-insertion, 16-bit,
2-port bus switches that are pin compatible with the 74 series 16245
16-bit transceiver. Two enable signals (nBE) turn the switches on
similar to the enable signals of the 16245. The bus switches create
no additional propagational delay or additional ground bounce
noise.
The PI3B162245 device has a built-in 25-ohm series resistor to
reduce noise resulting from reflections, thus eliminating the need
for an external terminating resistor.
Product Pin Configuration
1A0
1A7
1BE
2A0
2A7
2BE
Truth Table⁽¹⁾
Function
nBE nA0–7
Disconnect
H Hi-Z
Connect
L nB0–7
Note: 1. H = High Voltage Level
L = Low Voltage Level
Hi-Z = High Impedance
1B0
1B7
2B0
2B7
NC
1B0
1B1
GND
1B2
1B3
VCC
1B4
1B5
GND
1B6
1B7
2B0
2B1
GND
2B2
2B3
VCC
2B4
2B5
GND
2B6
2B7
NC
1
48
2
47
3
46
4
45
5
44
6
43
7
42
8
41
9
40
10
39
11
38
12 ^48-Pin 37
13 ^{A, V} 36
14
35
15
34
16
33
17
32
18
31
19
30
20
29
21
28
22
27
23
26
24
25
1BE
1A0
1A1
GND
1A2
1A3
VCC
1A4
1A5
GND
1A6
1A7
2A0
2A1
GND
2A2
2A3
VCC
2A4
2A5
GND
2A6
2A7
2BE
Product Pin Description
Pin Name I/O
nBE
I
nA0-nA7 I/O
nB0-nB7
I/O
Description
Bus Enable Input (Active LOW)
Bus A
Bus B
1
PS8189C 09/13/99