SN74CBT16390
16-BIT TO 32-BIT FET MULTIPLEXER/DEMULTIPLEXER BUS SWITCH
SCDS035E – OCTOBER 1997 – REVISED OCTOBER 2000
DGG, DGV, OR DL PACKAGE
Member of Texas Instruments’ Widebus
Family
(TOP VIEW)
5-Ω Switch Connection Between Two Ports
TTL-Compatible Input Levels
A1
2B1
2B2
A3
1B1
1B2
A2
1B3
1B4
A4
1
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
2
Latch-Up Performance Exceeds 250 mA Per
JESD 17
3
4
2B3
2B4
A5
5
ESD Protection Exceeds JESD 22
– 2000-V Human-Body Model (A114-A)
– 200-V Machine Model (A115-A)
6
1B5
1B6
A6
7
2B5
2B6
A7
2B7
2B8
GND
8
description
9
1B7
1B8
A8
10
11
12
13
14
15
16
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 device also can be used to connect or isolate
the PCI bus to one or two slots simultaneously.
GND
V
V
CC
CC
A9
2B9
1B9
1B10
2B10 17
A11 18
40 A10
39 1B11
38 1B12
37 A12
36 1B13
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.
2B11 19
2B12 20
A13 21
22
23
24
25
26
27
28
35
34
33
32
31
30
29
2B13
2B14
A15
1B14
A14
1B15
1B16
A16
2B15
2B16
NC
OE1
OE2
NC
NC – No internal connection
ORDERING INFORMATION
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
†
PACKAGE
T
A
Tube
SN74CBT16390DL
SSOP – DL
CBT16390
Tape and reel
SN74CBT16390DLR
SN74CBT16390DGGR
SN74CBT16390DGVR
–40°C to 85°C
TSSOP – DGG Tape and reel
TVSOP – DGV Tape and reel
CBT16390
CY390
†
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design
guidelines are available at www.ti.com/sc/package.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Widebus is a trademark of Texas Instruments.
Copyright 2000, Texas Instruments Incorporated
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.
1
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