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Part: 54ACT11280
Category:
Logic
-> Parity Generators/Checkers
-> CMOS/BiCMOS->AC/ACT Family
Description: 9-bit Parity Generators/checkers
Company: Texas Instruments, Inc.
Datasheet: Download 54ACT11280 datasheet File size : 275 kB
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Datasheet text preview:
54ACT11280, 74ACT11280 9-BIT PARITY GENERATORS/CHECKERS
SCAS046A D3148, AUGUST 1988 REVISED APRIL 1993
· · · · · · · ·
Inputs Are TTL-Voltage Compatible Generates Either Odd or Even Parity for Nine Data Lines Cascadable for n-Bits Parity Flow-Through Architecture Optimizes PCB Layout Center-Pin VCC and GND Configurations Minimize High-Speed Switching Noise EPIC (Enhanced-Performance Implanted CMOS) 1-mm Process 500-mA Typical Latch-Up Immunity at 125°C Package Options Include Plastic Small-Outline Packages, Ceramic Chip Carriers, and Standard Plastic and Ceramic 300-mil DIPs
54ACT11280 . . . J PACKAGE 74ACT11280 . . . D OR N PACKAGE (TOP VIEW)
t
B A ODD GND EVEN NC I
1 2 3 4 5 6 7
14 13 12 11 10 9 8
C D E VCC F G H
54ACT11280 . . . FK PACKAGE (TOP VIEW)
description
These universal, monolithic, 9-bit parity generators/checkers feature odd and even outputs to facilitate operation of either an odd or even parity application. The word-length capability is easily expanded by cascading. The 54ACT11280 is characterized for operation over the full military temperature range of 55°C to 125°C. The 74ACT11280 is characterized for operation from 40°C to 85°C.
FUNCTION TABLE NUMBER OF INPUTS A THRU I THRU THAT ARE HIGH 0, 2, 4, 6, 8 1, 3, 5, 7, 9 OUTPUTS
C NC B NC A
4 5 6 7 8
3 2 1 20 19 18 17 16 15 14 9 10 11 12 13
D E NC V CC F G NC H NC I
NC No internal connection
logic symbol
A B C D E F G H I 2 1 14 13 12 10 9 8 7 3 5 EVEN ODD 2k
S EVEN
H L
S ODD
L H
This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. Pin numbers shown are for the D, J, and N packages.
EPIC is a trademark of 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.
Copyright © 1993, Texas Instruments Incorporated
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
ODD GND NC EVEN NC
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54ACT11280, 74ACT11280 9-BIT PARITY GENERATORS/CHECKERS
SCAS046A D3148, AUGUST 1988 REVISED APRIL 1993
logic diagram (positive logic)
2 A 1
B
C
14
5
EVEN
D
13
E
12
F
10
3
ODD
G
9
H
8
I
7
Pin numbers shown are for the D, J, and N packages.
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 VCC + 0.5 V Output voltage range, VO (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 V to VCC + 0.5 V Input clamp current, IIK (VI VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 20 mA Output clamp current, IOK (VO VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 50 mA Continuous output current, IO (VO = 0 to VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 50 mA Continuous current through VCC or GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 00 mA Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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. NOTE 1: The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
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POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
54ACT11280, 74ACT11280 9-BIT PARITY GENERATORS/CHECKERS
SCAS046A D3148, AUGUST 1988 REVISED APRIL 1993
recommended operating conditions
54ACT11280 MIN VCC VIH VIL VI VO IOH IOL Dt /Dv TA Supply voltage High-level input voltage Low-level input voltage Input voltage Output voltage High-level output current Low-level output current Input transition rise or fall rate Operating free-air temperature 0 55 0 0 4.5 2 0.8 VCC VCC 24 24 10 125 0 40 0 0 MAX 5.5 74ACT11280 MIN 4.5 2 0.8 VCC VCC 24 24 10 85 MAX 5.5 UNIT V V V V V mA mA ns/ V °C
electrical characteristics over recommended operating free-air temperature range (unless otherwise noted)
PARAMETER TEST CONDITIONS CONDITIONS IOH = 50 mA mA VOH IOH = 24 mA mA IOH = 50 mA{ IOH = 75 mA{ IOL = 50 mA 50 mA VOL IOL = 24 mA 24 mA IOL = 50 mA{ IOL = 75 mA{ II ICC VI = VCC or GND VI = VCC or GND, IO = 0 VCC 4.5 V 5.5 V 4.5 V 5.5 V 5.5 V 5.5 V 4.5 V 5.5 V 4.5 V 5.5 V 5.5 V 5.5 V 5.5 V 5.5 V 5.5 V ± 0.1 8 0.9 ±1 160 1 0.1 0.1 0.36 0.36 0.1 0.1 0.5 0.5 1.60 1.65 ±1 80 1 MIN 4.4 5.4 3.94 4.94 TA = 25°C TYP MAX 54ACT11280 MIN 4.4 5.4 3.7 4.7 3.85 3.85 0.1 0.1 0.44 0.44 V MAX 74ACT11280 MIN 4.4 5.4 3.8 4.8 V MAX UNIT
mA mA
mA pF
DICC}
One input at 3.4 V, Other inputs at GND or VCC
Ci VI = VCC or GND 5V 3.5 Not more than one output should be tested at a time and the duration of the test should not exceed 10 ms. This is the increase in supply current for each input that is at one of the specified TTL voltage levels rather than 0 V or VCC.
switching characteristics over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 1)
PARAMETER tPLH tPHL tPLH tPHL FROM (INPUT) Any input input Any input input TO (OUTPUT) MIN 1.5 1.5 1.5 1.5 TA = 25°C TYP MAX 7.3 8.8 7.3 8.6 10.8 12.5 10.8 12.4 54ACT11280 MIN 1.5 1.5 1.5 1.5 MAX 13.1 15.6 12.9 15.7 74ACT11280 MIN 1.5 1.5 1.5 1.5 MAX 12.2 14.3 12.1 14.3 UNIT ns ns
S EVEN EVEN S ODD ODD
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
23
54ACT11280, 74ACT11280 9-BIT PARITY GENERATORS/CHECKERS
SCAS046A D3148, AUGUST 1988 REVISED APRIL 1993
operating characteristics, VCC = 5 V, TA = 25°C
PARAMETER Cpd Power dissipation capacitance TEST CONDITIONS CL = 50 pF, f = 1 MHz TYP 56 UNIT pF
PARAMETER MEASUREMENT INFORMATION
Input (see Note B) From Output Under Test CL = 50 pF (see Note A) 500 In-Phase Output tPHL Out-of-Phase Output LOAD CIRCUIT 50% VCC tPLH 50% VCC 3V 1.5 V 1.5 V 0V tPHL VOH 50% VCC VOL tPLH VOH 50% VCC VOL
VOLTAGE WAVEFORMS
NOTES: A. CL includes probe and jig capacitance. B. Input pulses are supplied by generators having the following characteristics: PRR 10 MHz, ZO = 50 , tr = 3 ns, tf = 3 ns. C. The outputs are measured one at a time with one input transition per measurement.
Figure 1. Load Circuit and Voltage Waveforms
24
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
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Copyright © 1998, Texas Instruments Incorporated
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