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Details, datasheet, quote on part number:74ACT11543DW
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Datasheet text preview:
74ACT11543 OCTAL REGISTERED TRANSCEIVER WITH 3-STATE OUTPUTS
SCAS136 D3608, JULY 1990 REVISED APRIL 1993
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Inputs Are TTL-Voltage Compatible 3-State True Outputs Back-to-Back Registers for Storage 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
DW PACKAGE (TOP VIEW)
t
description
This 8-bit registered transceiver contains two sets of D-type latches for temporary storage of data flowing in either direction. Separate latch enable (LEAB or LEBA) and output enable (GAB or GBA) inputs are provided for each register to permit independent control in either direction of data flow.
CEBA A1 A2 A3 A4 GND GND GND GND A5 A6 A7 A8 CEAB
1 2 3 4 5 6 7 8 9 10 11 12 13 14
28 27 26 25 24 23 22 21 20 19 18 17 16 15
GBA LEBA B1 B2 B3 B4 VCC VCC B5 B6 B7 B8 LEAB GAB
The A-to-B enable (CEAB) input must be low in order to enter data from A or to output data to B. Having CEAB low and LEAB low makes the A-to-B latches transparent; a subsequent low-to-high transition of LEAB puts the A latches in the storage mode. With CEAB and GAB both low, the 3-state B outputs are active and reflect the data present at the output of the A latches. Data flow from B-to-A is similar, but requires the use of CEBA, LEBA, and GBA inputs. The 74ACT11543 is characterized for operation from 40°C to 85°C.
FUNCTION TABLE INPUTS CEAB H X X L L L H LEAB X H H L L Transparent Storing GAB X LATCH STATUS A TO B Storing Storing Z Current A Data Previous A Data OUTPUT BUFFERS B1 THRU B8 Z
}
A-to-B data flow is shown: B-to-A flow control is the same except uses CEBA, LEBA, and GBA. Data present before low-to-high transition of LEAB.
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
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74ACT11543 OCTAL REGISTERED TRANSCEIVER WITH 3-STATE OUTPUTS
SCAS136 D3608, JULY 1990 REVISED APRIL 1993
logic symbol
GBA CEBA LEAB GAB CEAB LEAB A1 A2 A3 A4 A5 A6 A7 A8 28 1 27 15 14 16 2 3 4 5 10 11 12 13 1EN G1 1C5 2EN4 G2 2C6 3 6D 5D 4 26 25 24 23 20 19 18 17 B1 B2 B3 B4 B5 B6 B7 B8
logic diagram (positive logic)
GBA CEBA LEBA GAB CEAB LEAB A1 28 1 27 15 14 16 2 C1 1D C1 1D 26
B1
To Seven Other Transceivers
This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 200 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.
recommended operating conditions
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 40 0 0 4.5 2 0.8 VCC VCC 24 24 10 85 NOM 5 MAX 5.5 UNIT V V V V V mA mA ns/ V °C
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POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
74ACT11543 OCTAL REGISTERED TRANSCEIVER WITH 3-STATE OUTPUTS
SCAS136 D3608, JULY 1990 REVISED APRIL 1993
electrical characteristics over recommended operating free-air temperature range
PARAMETER IOH = 50 mA mA VOH IOH = 24 mA mA IOH = 75 mA IOL = 50 mA 50 mA VOL IOL = 24 mA 24 mA IOL = 75 mA VI = VCC or GND VO = VCC or GND VI = VCC or GND, IO = 0 One input at 3.4 V, Other inputs at GND or VCC Control inputs VI = VCC or GND VO = VCC or GND TEST CONDITIONS CONDITIONS VCC 4.5 V 5.5 V 4.5 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 5V 4.5 ± 0.1 ± 0.5 8 0.9 0.1 0.1 0.36 0.36 MIN 4.4 5.4 3.94 4.94 TA = 25°C TYP MAX MIN 4.4 5.4 3.8 4.8 3.85 0.1 0.1 0.44 0.44 1.65 ±1 ±5 80 1 V V MAX UNIT
II IOZ ICC
Control inputs A or B ports
mA mA mA
mA pF pF
DICC§
Ci
Cio A or B ports 5V 12 Not more than one output should be tested at a time, and the duration of the test should not exceed 10 ms. For I/O ports, the parameter IOZ includes the input leakage current. § 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.
timing requirements over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 1)
TA = 25°C MIN MAX tw tsu th Pulse duration, LEAB or LEBA low Setup time time Data after LEAB or LEBA Data before CEAB or CEBA Hold time time Data after LEAB or LEBA Data after CEAB or CEBA 4 2.5 3 2 1.5 MIN 4 2.5 3 2 1.5 MAX UNIT ns ns
ns
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· DALLAS, TEXAS 75265
23
74ACT11543 OCTAL REGISTERED TRANSCEIVER WITH 3-STATE OUTPUTS
SCAS136 D3608, JULY 1990 REVISED APRIL 1993
switching characteristics over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 1)
PARAMETER tPLH tPHL tPLH tPHL tPZH tPZL tPHZ tPLZ tPZH tPZL tPHZ tPLZ FROM (INPUT) A or B or TO (OUTPUT) B or A or A or B or A or B or A or B or A or B or A or B or MIN 3.5 3.2 3 3.7 3.5 3.2 4.8 5.1 3.3 3 4.6 5 TA = 25°C TYP MAX 6.2 6.5 6.1 7.2 6.7 8.4 7.3 7.5 6.4 8 6.9 7.1 9.1 10.8 10.1 11.7 11.1 13.4 10.1 10.3 10.5 12.8 9.6 9.8 MIN 3.5 3.2 3 3.7 3.5 3.2 4.8 5.1 3.3 3 4.6 5 MAX 10.2 12.1 11.2 13.2 12.2 16 11 11.1 11.5 15.3 10.4 10.5 UNIT ns ns ns ns ns ns
LEBA or LEAB or LEAB CEBA or CEAB or CEAB CEBA or CEAB or CEAB GBA or GAB or GAB GBA or GAB or GAB
operating characteristics, VCC = 5 V, TA = 25°C
PARAMETER Cpd Power dissipation capacitance per transceiver Power dissipation capacitance per transceiver Outputs enabled Outputs disabled TEST CONDITIONS CL = 50 pF 50 pF, MHz f = 1 MHz TYP 47 13 UNIT pF
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POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
74ACT11543 OCTAL REGISTERED TRANSCEIVER WITH 3-STATE OUTPUTS
SCAS136 D3608, JULY 1990 REVISED APRIL 1993
PARAMETER MEASUREMENT INFORMATION
2 × VCC From Output Under Test CL = 50 pF (see Note A) 500 S1 Open GND 500 TEST tPLH/tPHL tPLZ/tPZL tPHZ/tPZH S1 Open 2 × VCC GND
LOAD CIRCUIT Timing Input (see Note B) tw 3V Input 1.5 V 1.5 V 0V VOLTAGE WAVEFORMS VOLTAGE WAVEFORMS Data Input tsu 1.5 V 3V 1.5 V 0V th 3V 1.5 V 0V
Input (see Note B) tPLH In-Phase Output tPHL Out-of-Phase Output
3V 1.5 V 1.5 V 0V tPHL 50% VCC VOH 50% VCC VOL tPLH 50% VCC VOH 50% VCC VOL
Output Control (low-level enabling) Output Waveform 1 S1 at 2 × VCC (see Note C) Output Waveform 2 S1 at GND (see Note C)
3V 1.5 V tPZL tPLZ 50% VCC tPHZ 80% VCC VOH 20% VCC 1.5 V 0V
[ VC C
VOL
tPZH
50% VCC
[0V
VOLTAGE WAVEFORMS
VOLTAGE WAVEFORMS
NOTES: A. CL includes probe and jig capacitance. B. All input pulses are supplied by generators having the following characteristics: PRR 10 MHz, ZO = 50 , tr = 3 ns, tf = 3 ns. C. 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. D. The outputs are measured one at a time with one input transition per measurement.
Figure 1. Load Circuit and Voltage Waveforms
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25
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