TI SN74ABT16833

SN54ABT16833, SN74ABT16833
DUAL 8-BIT TO 9-BIT PARITY BUS TRANSCEIVERS
SCBS097D – FEBRUARY 1991 – REVISED JANUARY 1997
D
D
D
D
D
D
D
D
D
D
SN54ABT16833 . . . WD PACKAGE
SN74ABT16833 . . . DGG OR DL PACKAGE
(TOP VIEW)
Members of the Texas Instruments
Widebus  Family
State-of-the-Art EPIC-ΙΙB  BiCMOS Design
Significantly Reduces Power Dissipation
Latch-Up Performance Exceeds 500 mA
Per JEDEC Standard JESD-17
Typical VOLP (Output Ground Bounce)
< 1 V at VCC = 5 V, TA = 25°C
Distributed VCC and GND Pin Configuration
Minimizes High-Speed Switching Noise
Flow-Through Architecture Optimizes
PCB Layout
High-Drive Outputs (–32-mA IOH, 64-mA IOL)
Parity-Error Flag With Parity
Generator/Checker
Register for Storage of Parity-Error Flag
Package Options Include Plastic 300-mil
Shrink Small-Outline (DL) and Thin Shrink
Small-Outline (DGG) Packages and 380-mil
Fine-Pitch Ceramic Flat (WD) Package
Using 25-mil Center-to-Center Spacings
1OEB
1CLK
1ERR
GND
1A1
1A2
VCC
1A3
1A4
1A5
GND
1A6
1A7
1A8
2A1
2A2
2A3
GND
2A4
2A5
2A6
VCC
2A7
2A8
GND
2ERR
2CLK
2OEB
description
The ’ABT16833 consist of two noninverting 8-bit
to 9-bit parity bus transceivers and are designed
for communication between data buses. For each
transceiver, when data is transmitted from the
A bus to the B bus, an odd-parity bit is generated
and output on the parity I/O pin (1PARITY or
2PARITY). When data is transmitted from the
B bus to the A bus, 1PARITY (or 2PARITY) is
configured as an input and combined with the
B-input data to generate an active-low error flag if
odd parity is not detected.
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
1OEA
1CLR
1PARITY
GND
1B1
1B2
VCC
1B3
1B4
1B5
GND
1B6
1B7
1B8
2B1
2B2
2B3
GND
2B4
2B5
2B6
VCC
2B7
2B8
GND
2PARITY
2CLR
2OEA
The error (1ERR or 2ERR) output is configured as an open-collector output. The B-to-A parity-error flag is
clocked into 1ERR (or 2ERR) on the low-to-high transition of the clock (1CLK or 2CLK) input. 1ERR (or 2ERR)
is cleared (set high) by taking the clear (1CLR or 2CLR) input low.
The output-enable (OEA and OEB) inputs can be used to disable the device so that the buses are effectively
isolated. When both OEA and OEB are low, data is transferred from the A bus to the B bus and inverted parity
is generated. Inverted parity is a forced error condition that gives the designer more system diagnostic
capability.
To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup
resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
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 and EPIC-ΙΙB are trademarks of Texas Instruments Incorporated.
Copyright  1997, Texas Instruments Incorporated
UNLESS OTHERWISE NOTED this document contains PRODUCTION
DATA information 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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1
SN54ABT16833, SN74ABT16833
DUAL 8-BIT TO 9-BIT PARITY BUS TRANSCEIVERS
SCBS097D – FEBRUARY 1991 – REVISED JANUARY 1997
description (continued)
The SN54ABT16833 is characterized for operation over the full military temperature range of –55°C to 125°C.
The SN74ABT16833 is characterized for operation from –40°C to 85°C.
FUNCTION TABLE
INPUTS
OUTPUT AND I/O
Ai
Σ OF H
OEB
OEA
CLR
CLK
L
H
X
X
H
L
H
↑
NA
X
X
H
L
H
L
Odd
Even
L
X
X
H
No↑
X
L
No↑
X
H
↑
Odd
H
↑
Even
X
X
Odd
Even
Bi†
Σ OF H
A
B
NA
NA
A
B
NA
NA
X
NA
NA
Odd
Even
X
PARITY
L
H
NA
H
FUNCTION
A data to B bus and
generate parity
L
B data to A bus and
check parity
H
Check error-flag register
NC
X
Z
Z
Z
H
H
Isolation§
L
NA
NA
A
H
L
NA = not applicable, NC = no change, X = don’t care
† Summation of high-level inputs includes PARITY along with Bi inputs.
‡ Output states shown assume ERR was previously high.
§ In this mode, ERR (when clocked) shows inverted parity of the A bus.
2
ERR‡
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NA
A data to B bus and
generate inverted parity
SN54ABT16833, SN74ABT16833
DUAL 8-BIT TO 9-BIT PARITY BUS TRANSCEIVERS
SCBS097D – FEBRUARY 1991 – REVISED JANUARY 1997
logic symbol†
1CLK
1CLR
1OEA
1OEB
2CLK
2CLR
2OEA
2OEB
1A1
1A2
1A3
1A4
1A5
1A6
1A7
1A8
2A1
2A2
2A3
2A4
2A5
2A6
2A7
2A8
Φ
PARITY XCVR
SN74ABT16833
2
55
56
1
1CLK
29
28
5
1OEB
1PARITY
54
1PARITY
2CLK
26
2ERR
2CLR
2ERR
2OEA
2OEB
2PARITY
1
1
31
52
6
51
8
49
9
48
10
A Bus
47
B Bus
12
45
13
44
14
43
15
1ERR
1OEA
27
30
3
1ERR
1CLR
8
8
1
1
42
16
41
17
40
19
38
20
A Bus
37
B Bus
21
36
23
34
24
33
8
8
2PARITY
1B1
1B2
1B3
1B4
1B5
1B6
1B7
1B8
2B1
2B2
2B3
2B4
2B5
2B6
2B7
2B8
† This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
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3
SN54ABT16833, SN74ABT16833
DUAL 8-BIT TO 9-BIT PARITY BUS TRANSCEIVERS
SCBS097D – FEBRUARY 1991 – REVISED JANUARY 1997
logic diagram (positive logic)
8
1A1–1A8
8x
8
1B1–1B8
EN
8x
8
EN
1OEB
1OEA
1
54
56
8
1PARITY
8
1 MUX
1
2k
9
1
P
1
G1
1CLK
1CLR
1D
C1
R
2
55
8
2A1–2A8
8x
3
8
1ERR
2B1–2B8
EN
8x
8
EN
2OEB
2OEA
28
31
29
8
2PARITY
8
1 MUX
1
1
9
2k
P
1
G1
2CLK
2CLR
4
1D
C1
R
27
30
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26
2ERR
SN54ABT16833, SN74ABT16833
DUAL 8-BIT TO 9-BIT PARITY BUS TRANSCEIVERS
SCBS097D – FEBRUARY 1991 – REVISED JANUARY 1997
ERROR-FLAG FUNCTION TABLE
INPUTS
INTERNAL
TO DEVICE
OUTPUT
PRE-STATE
OUTPUT
ERR
CLR
CLK
POINT P
ERRn–1†
H
↑
H
H
H
H
↑
X
L
L
H
↑
L
X
L
FUNCTION
Sample
L
X
X
X
H
† State of ERR before changes at CLR, CLK, or point P
Clear
error-flag waveforms
H
OEB
L
H
OEA
L
Even
Bi + PARITY
Odd
tsu
th
H
CLK
L
tw
tw
CLR
tsu
H
L
tPHL
tPLH
H
ERR
L
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5
SN54ABT16833, SN74ABT16833
DUAL 8-BIT TO 9-BIT PARITY BUS TRANSCEIVERS
SCBS097D – FEBRUARY 1991 – REVISED JANUARY 1997
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 (except I/O ports) (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to 7 V
Voltage range applied to any output in the high or power-off state, VO . . . . . . . . . . . . . . . . . . . –0.5 V to 5.5 V
Current into any output in the low state, IO: SN54ABT16833 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 mA
SN74ABT16833 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128 mA
Input clamp current, IIK (VI < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –18 mA
Output clamp current, IOK (VO < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –50 mA
Package thermal impedance, θJA (see Note 2): DGG package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81°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 EIA/JEDEC Std JESD51.
recommended operating conditions (see Note 3)
SN54ABT16833
VCC
VIH
Supply voltage
VIL
VI
Low-level input voltage
VOH
IOH
High-level output voltage
ERR
High-level output current
Except ERR
IOL
∆t/∆v
Low-level output current
High-level input voltage
MAX
MIN
MAX
4.5
5.5
4.5
5.5
2
2
0.8
Input voltage
0
Input transition rise or fall rate
Outputs enabled
TA
Operating free-air temperature
NOTE 3: Unused pins (input or I/O) must be held high or low to prevent them from floating.
PRODUCT PREVIEW information concerns products in the formative or
design phase of development. Characteristic data and other
specifications are design goals. Texas Instruments reserves the right to
change or discontinue these products without notice.
6
SN74ABT16833
MIN
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–55
UNIT
V
V
0.8
V
VCC
5.5
V
–24
–32
mA
48
64
mA
10
10
ns/V
85
°C
VCC
5.5
125
0
–40
V
SN54ABT16833, SN74ABT16833
DUAL 8-BIT TO 9-BIT PARITY BUS TRANSCEIVERS
SCBS097D – FEBRUARY 1991 – REVISED JANUARY 1997
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
VIK
VOH
All outputs
except ERR
TEST CONDITIONS
2.5
3.4
3
IOH = –3 mA
IOH = –24 mA
3
IOH = –32 mA
IOL = 24 mA
2*
VCC = 4
4.5
5V
Ioff
ICEX
VOH = 5.5 V
VI or VO ≤ 4.5 V
Outputs high
VCC = 5.5 V,
VO = 5.5 V
SN54ABT16833
MIN
–1.2
MAX
SN74ABT16833
MIN
–1.2
MAX
–1.2
3
2.7
A or B ports
0.55
0.3
0.55*
0.55
0.55
A or B ports
IOZH§
IOZL§
A or B ports
50
VI = GND
VO = 2.5 V
VCC =5.5 V,
VCC = 5.5 V,
VO = 2.7 V
VO = 0.5 V
VCC = 5.5 V,
IO = 0,
VI = VCC or GND
Outputs high
1.5
Outputs low
–50
Outputs disabled
–100
Ci
Control inputs
Cio
A or B ports
VI = 2.5 V or 0.5 V
VO = 2.5 V or 0.5 V
50
20
µA
±100
µA
50
µA
±1
±1
±1
±100
±100
±100
–50
–50
–50
µA
–180
–50
–180
–50
µA
–180
mA
50
50
50
µA
–50
–50
–50
µA
2
2
2
28
36
36
36
1
2
2
2
50
50
50
VCC = 5.5 V, One input at 3.4 V,
Other inputs at VCC or GND
∆ICC¶
20
±100
VCC = 0,
VCC = 5.5 V,
V
mV
20
VCC = 5
5.5
5 V,
V VI = VCC or GND
V
2
0.25
100
Control inputs
UNIT
V
2
IOL = 64 mA
VCC = 4.5 V,
VCC = 0,
ICC
3
VCC = 5 V,
ERR
IIL
IO‡
2.5
II = –18 mA
IOH = –3 mA
Vhys
IOH
II
TA = 25°C
TYP†
MAX
VCC = 4.5 V,
VCC = 4.5 V,
VCC = 4
4.5
5V
VOL
MIN
mA
µA
3
pF
9
pF
* On products compliant to MIL-PRF-38535, this parameter does not apply.
† All typical values are at VCC = 5 V.
‡ Not more than one output should be tested at a time, and the duration of the test should not exceed one second.
§ The parameters IOZH and IOZL include the input leakage current.
¶ This is the increase in supply current for each input that is at the specified TTL voltage level rather than VCC or GND.
PRODUCT PREVIEW information concerns products in the formative or
design phase of development. Characteristic data and other
specifications are design goals. Texas Instruments reserves the right to
change or discontinue these products without notice.
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SN54ABT16833, SN74ABT16833
DUAL 8-BIT TO 9-BIT PARITY BUS TRANSCEIVERS
SCBS097D – FEBRUARY 1991 – REVISED JANUARY 1997
timing requirements over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (see Figure 1)
VCC = 5 V,
TA = 25°C
MIN
tw
Pulse duration, CLK high or low
tsu
Setup time before CLK↑
↑
A port
th
Hold time after CLK↑
SN54ABT16833
MAX
MIN
MAX
SN74ABT16833
MIN
3
3
3
4.5
4.5
4.5
CLR
1
1
1
OEA
5
5
5
A port or OEA
0
0
0
UNIT
MAX
ns
ns
ns
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (see Figure 1)
FROM
(INPUT)
TO
(OUTPUT)
tPLH
tPHL
A or B
B or A
tPZH
tPZL
OE
A or B
tPHZ
tPLZ
OE
A or B
tPLH
tPHL
A or OE
PARITY
tPZH
tPZL
OE
PARITY
tPHZ
tPLZ
OE
PARITY
PARAMETER
tPLH
tPHL
CLK, CLR
CLK
ERR
VCC = 5 V,
TA = 25°C
SN54ABT16833
MIN
TYP
MAX
MIN
MAX
MIN
MAX
1.5
2.5
3.3
1.5
4.2
1.5
4.1
2
3.1
3.9
2
4.5
2
4.3
2
3.9
4.9
2
5.8
2
5.6
2.5
4.3
5.1
2.5
6.2
2.5
6
2
3.6
4.5
2
5.5
2
5.4
1.5
3
3.8
1.5
4.7
1.5
4.3
2
4.6
5.4
2
7
2
6.7
2
4.3
5.1
2
6.5
2
6.1
2
3.6
5
2
5.8
2
5.7
2.5
4.4
5.8
2.5
6.7
2.5
6.5
1.5
3.2
4
1.5
4.8
1.5
4.7
1.5
2.9
3.7
1.5
4.2
1.5
4.1
2
3.4
4.2
2
4.8
2
4.6
2
2.8
3.6
2
4.1
2
3.9
PRODUCT PREVIEW information concerns products in the formative or
design phase of development. Characteristic data and other
specifications are design goals. Texas Instruments reserves the right to
change or discontinue these products without notice.
8
POST OFFICE BOX 655303
SN74ABT16833
• DALLAS, TEXAS 75265
UNIT
ns
ns
ns
ns
ns
ns
ns
SN54ABT16833, SN74ABT16833
DUAL 8-BIT TO 9-BIT PARITY BUS TRANSCEIVERS
SCBS097D – FEBRUARY 1991 – REVISED JANUARY 1997
PARAMETER MEASUREMENT INFORMATION
7V
S1
500 Ω
From Output
Under Test
Open
GND
CL = 50 pF
500 Ω
(see Note A)
TEST
S1
tPLH/tPHL
tPLZ/tPZL
tPHZ/tPZH
Open
7V
Open
ERR
S1
tPHL (see Note E)
tPLH (see Note F)
7V
7V
LOAD CIRCUIT
3V
Timing Input
1.5 V
0V
tw
tsu
3V
th
3V
Input
1.5 V
1.5 V
Data Input
1.5 V
1.5 V
0V
0V
VOLTAGE WAVEFORMS
PULSE DURATION
VOLTAGE WAVEFORMS
SETUP AND HOLD TIMES
3V
Input
1.5 V
1.5 V
0V
VOH
1.5 V
Output
1.5 V
VOL
VOH
Output
1.5 V
1.5 V
VOL
1.5 V
0V
tPLZ
Output
Waveform 1
S1 at 7 V
(see Note B)
tPLH
tPHL
1.5 V
tPZL
tPHL
tPLH
3V
Output
Control
Output
Waveform 2
S1 at Open
(see Note B)
1.5 V
tPZH
3.5 V
VOL + 0.3 V
VOL
tPHZ
1.5 V
VOH – 0.3 V
VOH
≈0V
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES
LOW- AND HIGH-LEVEL ENABLING
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
INVERTING AND NONINVERTING OUTPUTS
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 disabled by the output control.
Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control.
C. All input pulses 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. tPHL is measured at 1.5 V.
F. tPLH is measured at VOL + 0.3 V.
Figure 1. Load Circuit and Voltage Waveforms
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PACKAGE OPTION ADDENDUM
www.ti.com
5-Sep-2005
PACKAGING INFORMATION
Orderable Device
Status (1)
Package
Type
Package
Drawing
Pins Package Eco Plan (2)
Qty
74ABT16833DGGRE4
ACTIVE
TSSOP
DGG
56
2000 Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
SN74ABT16833DGGR
ACTIVE
TSSOP
DGG
56
2000 Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
SN74ABT16833DL
ACTIVE
SSOP
DL
56
Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
SN74ABT16833DLR
ACTIVE
SSOP
DL
56
1000 Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
20
Lead/Ball Finish
MSL Peak Temp (3)
(1)
The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in
a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2)
Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS) or Green (RoHS & no Sb/Br) - please check
http://www.ti.com/productcontent for the latest availability information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements
for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered
at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame
retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material)
(3)
MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder
temperature.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is
provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the
accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take
reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on
incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited
information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI
to Customer on an annual basis.
Addendum-Page 1
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Following are URLs where you can obtain information on other Texas Instruments products and application
solutions:
Products
Applications
Amplifiers
amplifier.ti.com
Audio
www.ti.com/audio
Data Converters
dataconverter.ti.com
Automotive
www.ti.com/automotive
DSP
dsp.ti.com
Broadband
www.ti.com/broadband
Interface
interface.ti.com
Digital Control
www.ti.com/digitalcontrol
Logic
logic.ti.com
Military
www.ti.com/military
Power Mgmt
power.ti.com
Optical Networking
www.ti.com/opticalnetwork
Microcontrollers
microcontroller.ti.com
Security
www.ti.com/security
Telephony
www.ti.com/telephony
Video & Imaging
www.ti.com/video
Wireless
www.ti.com/wireless
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