TI SN74CBT162292DGG

SN74CBT162292
12-BIT 1-OF-2 FET MULTIPLEXER/DEMULTIPLEXER
WITH INTERNAL PULLDOWN RESISTORS
SCDS052C – MARCH 1998 – REVISED MAY 1998
D
D
D
D
D
D
D
DGG, DGV, OR DL PACKAGE
(TOP VIEW)
TTL-Compatible Control Input Levels
Isolation Under Power-Off Conditions
Make-Before-Break Feature
Internal 500-Ω Pulldown Resistors to
Ground
A-Port Inputs/Outputs Have Equivalent
25-Ω Series Resistors, So No External
Resistors Are Required
Latch-Up Performance Exceeds 250 mA Per
JESD 17
Package Options Include Plastic Thin
Shrink Small-Outline (DGG), Thin Very
Small-Outline (DGV), and 300-mil Shrink
Small-Outline (DL) Packages
S
1A
NC
2A
NC
3A
NC
GND
4A
NC
5A
NC
6A
NC
7A
NC
VCC
8A
GND
NC
9A
NC
10A
NC
11A
NC
12A
NC
description
The SN74CBT162292 is a 12-bit 1-of-2
high-speed TTL-compatible FET multiplexer/
demultiplexer. The low on-state resistance of the
switch allows connections to be made with
minimal propagation delay.
When the select (S) input is low, port A is
connected to port B1 and RINT is connected to port
B2. When S is high, port A is connected to port B2
and RINT is connected to port B1.
The A-port inputs/outputs include equivalent 25-Ω
series resistors to reduce overshoot and
undershoot.
The SN74CBT162292 is characterized for
operation from –40°C to 85°C.
1
56
2
55
3
54
4
53
5
52
6
51
7
50
8
49
9
48
10
47
11
46
12
45
13
44
14
43
15
42
16
41
17
40
18
39
19
38
20
37
21
36
22
35
23
34
24
33
25
32
26
31
27
30
28
29
NC
NC
1B1
1B2
2B1
2B2
3B1
GND
3B2
4B1
4B2
5B1
5B2
6B1
6B2
7B1
7B2
8B1
GND
8B2
9B1
9B2
10B1
10B2
11B1
11B2
12B1
12B2
NC – No internal connection
FUNCTION TABLE
INPUT
S
FUNCTION
L
A port = B1 port
RINT = B2 port
H
A port = B2 port
RINT = B1 port
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.
Copyright  1998, 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.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
1
SN74CBT162292
12-BIT 1-OF-2 FET MULTIPLEXER/DEMULTIPLEXER
WITH INTERNAL PULLDOWN RESISTORS
SCDS052C – MARCH 1998 – REVISED MAY 1998
logic diagram (positive logic)
2
54
1A
1B1
RINT
RINT
53
1B2
30
27
12B1
12A
RINT
RINT
29
12B2
1
S
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)†
Supply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to 7 V
Input voltage range, VI (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to 7 V
Continuous channel current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128 mA
Input clamp current, IIK (VI < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –50 mA
Package thermal impedance, θJA (see Note 2): DGG package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81°C/W
DGV package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86°C/W
DL package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74°C/W
Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to 150°C
† Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES: 1. The input and output negative-voltage ratings may be exceeded if the input and output clamp-current ratings are observed.
2. The package thermal impedance is calculated in accordance with JESD 51.
2
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
SN74CBT162292
12-BIT 1-OF-2 FET MULTIPLEXER/DEMULTIPLEXER
WITH INTERNAL PULLDOWN RESISTORS
SCDS052C – MARCH 1998 – REVISED MAY 1998
recommended operating conditions (see Note 3)
MIN
MAX
VCC
VIH
Supply voltage
4
5.5
High-level control input voltage
2
VIL
TA
Low-level control input voltage
Operating free-air temperature
–40
UNIT
V
V
0.8
V
85
°C
NOTE 3: All unused control inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report,
Implications of Slow or Floating CMOS Inputs, literature number SCBA004.
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
VIK
II
VCC = 4.5 V,
VCC = 5.5 V,
II = –18 mA
VI = VCC or GND
Ioff
ICC
VCC = 0,
VCC = 5.5 V,
VI or VO = 0 to 7 V
IO = 0,
VCC = 5.5 V,
VI = 3 V or 0
One input at 3.4 V,
VCC = 0,
VCC = 4 V,
TYP at VCC = 4 V
VO = 3 V or 0
∆ICC‡
Ci
Control input
Control input
Cio
ron§
VCC = 4.5 V
MIN
TYP†
VI = VCC or GND
Other inputs at VCC or GND
MAX
UNIT
–1.2
V
±5
µA
10
µA
3
µA
2.5
mA
3.5
pF
8
pF
VI = 2.4 V,
II = 15 mA
38
55
VI = 0
II = 45 mA
II = 30 mA
39
63
37
55
Ω
VI = 2.4 V,
II = 15 mA
37
55
† All typical values are at VCC = 5 V (unless otherwise noted), TA = 25°C.
‡ This is the increase in supply current for each input that is at the specified TTL voltage level rather than VCC or GND.
§ Measured by the voltage drop between the A and B terminals at the indicated current through the switch. On-state resistance is determined by
the lower of the voltages of the two (A or B) terminals.
switching characteristics over recommended operating free-air temperature range, CL = 50 pF,
(unless otherwise noted) (see Figure 1)
PARAMETER
tpd¶
ten
FROM
(INPUT)
TO
(OUTPUT)
A or B
B or A
S
A or B
VCC = 4 V
VCC = 5 V
± 0.5 V
MIN
MAX
MIN
1
10.7
1.9
1
UNIT
MAX
1.85
ns
9.5
ns
tdis
S
A or B
1
10.9
1
9.7
ns
¶ The propagation delay is the calculated RC time constant of the typical on-state resistance of the switch and the specified load capacitance, when
driven by an ideal voltage source (zero output impedance).
switching characteristics over recommended operating free-air temperature range, CL = 50 pF,
(unless otherwise noted) (see Figure 1)
PARAMETER
DESCRIPTION
VCC = 4 V
VCC = 5 V
± 0.5 V
MIN
MIN
MAX
tmbb#
Make-before-break time
0
2
0
2
# The make-before-break time is the time interval between make and break, during the transition from one selected port to the other.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
UNIT
MAX
ns
3
SN74CBT162292
12-BIT 1-OF-2 FET MULTIPLEXER/DEMULTIPLEXER
WITH INTERNAL PULLDOWN RESISTORS
SCDS052C – MARCH 1998 – REVISED MAY 1998
PARAMETER MEASUREMENT INFORMATION
7V
S1
500 Ω
From Output
Under Test
Open
GND
CL = 50 pF
(see Note A)
500 Ω
TEST
S1
tpd
tPZL/tPLZ
tPZH/tPHZ
Open
7V
Open
3V
Output
Control
LOAD CIRCUIT
1.5 V
1.5 V
0V
tPZL
3V
Input
1.5 V
1.5 V
0V
tPLH
1.5 V
2.3 V
1.2 V
tPZH
tPHL
VOH
Output
Output
Waveform 1
S1 at 7 V
(see Note B)
1.5 V
VOL
Output
Waveform 2
S1 at Open
(see Note B)
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
tPLZ
VOL + 0.3 V
VOL
tPHZ
1.2 V
2.3 V
VOH – 0.3 V
0V
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES
NOTES: A. CL includes probe and jig capacitance.
B. Waveform 1 is for an output with internal conditions such that the output is low except when connected to the internal 500-Ω
pulldown resistor. Waveform 2 is for an output with internal conditions such that the output is high except when connected to the
internal 500-Ω pulldown resistor.
C. All pulse inputs and DC inputs are supplied by generators having the following characteristics: PRR ≤ 10 MHz, ZO = 50 Ω,
tr ≤ 2.5 ns, tf ≤ 2.5 ns.
D. The outputs are measured one at a time with one transition per measurement.
E. tPLZ and tPHZ are the same as tdis. Z = RINT = 500 Ω.
F. tPZL and tPZH are the same as ten. Z = RINT = 500 Ω.
G. tPLH and tPHL are the same as tpd.
Figure 1. Load Circuit and Voltage Waveforms
4
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
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Copyright  1998, Texas Instruments Incorporated