SN74CBT16390 Datasheet, PDF (1/5 Pages) Texas Instruments – 16-BIT TO 32-BIT FET MULTIPLEXER/DEMULTIPLEXER BUS SWITCH

SN74CBT16390
16-BIT TO 32-BIT FET MULTIPLEXER/DEMULTIPLEXER BUS SWITCH
D 5-Ω Switch Connection Between Two Ports
D TTL-Compatible Input Levels
D ESD Protection Exceeds 2000 V Per
MIL-STD-883, Method 3015; Exceeds 200 V
Using Machine Model (C = 200 pF, R = 0)
D Latch-Up Performance Exceeds 250 mA Per
JESD 17
D Package Options Include Plastic Thin
Shrink Small-Outline (DGG), Thin Very
Small-Outline (DGV), and 300-mil Shrink
Small-Outline (DL) Packages
description
The SN74CBT16390 is a 16-bit to 32-bit switch
used in applications in which two separate data
paths must be multiplexed onto, or demultiplexed
from, a single path. This device can be used for
memory interleaving, in which two different banks
of memory must be addressed simultaneously.
This also can be used to connect or isolate the PCI
bus to one or two slots simultaneously.
Two output enables (OE1 and OE2) control the
data flow. When OE1 is low, A port is connected
to 1B port. When OE2 is low, A port is connected
to 2B port. When both OE1 and OE2 are low, the
A port is connected to both 1B and 2B ports. The
control inputs can be driven with a 5-V CMOS, 5-V
TTL, or an LVTTL driver.
The SN74CBT16390 is characterized for
operation from –40°C to 85°C.
SCDS035C – OCTOBER 1997 – REVISED OCTOBER 1998
DGG, DGV, OR DL PACKAGE
(TOP VIEW)
A1 ₁
2B1 2
2B2 3
A3 4
2B3 5
2B4 6
A5 7
2B5 8
2B6 9
A7 10
2B7 11
2B8 12
GND 13
V_CC 14
A9 15
2B9 16
2B10 17
A11 18
2B11 19
2B12 20
A13 21
2B13 22
2B14 23
A15 24
2B15 25
2B16 26
NC 27
NC 28
56 ^1B1
55 1B2
54 A2
53 1B3
52 1B4
51 A4
50 1B5
49 1B6
48 A6
47 1B7
46 1B8
45 A8
44 GND
43 V_CC
42 1B9
41 1B10
40 A10
39 1B11
38 1B12
37 A12
36 1B13
35 1B14
34 A14
33 1B15
32 1B16
31 A16
30 OE1
29 OE2
NC – No internal connection
FUNCTION TABLE
INPUTS
OE1 OE2
FUNCTION
L
L
A = 1B and A = 2B
L
H
A = 1B
H
L
A = 2B
H
H
Isolation
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Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
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Copyright © 1998, Texas Instruments Incorporated
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