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Part: 5962-9677501QXA
Category:
Logic
-> Backplane Logic (GTL, GTLP, FB/FB+, ABTE/ETL)
Description: ti SN54ABTE16245, 16-Bit Incident-wave Switching Bus Transceivers With 3-State Outputs
Company: Texas Instruments, Inc.
Datasheet: Download 5962-9677501QXA datasheet File size : 253 kB
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Datasheet text preview:
SN54ABTE16245, SN74ABTE16245 16-BIT INCIDENT-WAVE SWITCHING BUS TRANSCEIVERS WITH 3-STATE OUTPUTS
SCBS226J JULY 1993 REVISED DECEMBER 2001
D D D D D D D D D
Members of the Texas Instruments Widebus Family Support the VME64 ETL Specification Reduced, TTL-Compatible, Input Threshold Range High-Drive Outputs (IOH = 60 mA, IOL = 90 mA) Support 25- Incident-Wave Switching VCCBIAS Pin Minimizes Signal Distortion During Live Insertion Internal Pullup Resistor on OE Keeps Outputs in High-Impedance State During Power Up or Power Down Distributed VCC and GND Pins Minimize High-Speed Switching Noise Equivalent 25- Series Damping Resistor on B Port Bus Hold on Data Inputs Eliminates the Need for External Pullup/Pulldown Resistors
SN54ABTE16245 . . . WD PACKAGE SN74ABTE16245 . . . DGG OR DL PACKAGE (TOP VIEW)
description
The 'ABTE16245 devices are 16-bit (dual-octal) 22 27 noninverting 3-state transceivers designed for 23 26 synchronous two-way communication between 24 25 data buses. The control-function implementation minimizes external timing requirements. These devices can be used as two 8-bit transceivers or one 16-bit transceiver. They allow data transmission from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control (DIR) input. The output-enable (OE) input can be used to disable the device so that the buses are effectively isolated. When OE is low, the device is active. The B port has an equivalent 25- series output resistor to reduce ringing. Active bus-hold inputs also are on the B port to hold unused or floating inputs at a valid logic level. The A port provides for the precharging of the outputs via VCCBIAS, which establishes a voltage between 1.3 V and 1.7 V when VCC is not connected. Active bus-hold circuitry holds unused or undriven inputs at a valid logic state. Use of pullup or pulldown resistors with the bus-hold circuitry is not recommended.
1DIR 1B1 2B1 GND 1B2 2B2 VCC 1B3 2B3 GND 1B4 2B4 1B5 2B5 GND 1B6 2B6 VCC 1B7 2B7 GND 1B8 2B8 2DIR
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21
48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28
VCCBIAS 1A1 2A1 GND 1A2 2A2 VCC 1A3 2A3 GND 1A4 2A4 1A5 2A5 GND 1A6 2A6 VCC 1A7 2A7 GND 1A8 2A8 OE
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.
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 2001, Texas Instruments Incorporated
On products compliant to MIL-PRF-38535, all parameters are tested unless otherwise noted. On all other products, production processing does not necessarily include testing of all parameters.
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SN54ABTE16245, SN74ABTE16245 16-BIT INCIDENT-WAVE SWITCHING BUS TRANSCEIVERS WITH 3-STATE OUTPUTS
SCBS226J JULY 1993 REVISED DECEMBER 2001
ORDERING INFORMATION
TA PACKAGE SSOP DL DL TSSOP DGG Tube Tape and reel Tape and reel ORDERABLE PART NUMBER SN74ABTE16245DL SN74ABTE16245DLR SN74ABTE16245DGGR TOP-SIDE MARKING ABTE16245 ABTE16245
40°C to 85°C
55°C to 125°C CFP WD Tube SNJ54ABTE16245WD SNJ54ABTE16245WD Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. FUNCTION TABLE (each 8-bit section) INPUTS OE L L H DIR L H X OPERATION A data to B bus B data to A bus Isolation
logic diagram (positive logic)
1DIR 1 2DIR 24
OE
25
1B1
2
2B1
3
47
1A1
46
2A1
To Seven Other Channels
To Seven Other Channels
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, VCC and VCCBIAS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 state or power-off state, VO . . . . . . . . . . . . . . 0.5 V to 5.5 V Current into any output in the low state, IO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128 mA Input clamp current, IIK (VI < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 mA Output clamp current, IOK (VO < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 mA Package thermal impedance, JA (see Note 2): DGG package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70°C/W DL package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63°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 51-7.
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POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
SN54ABTE16245, SN74ABTE16245 16-BIT INCIDENT-WAVE SWITCHING BUS TRANSCEIVERS WITH 3-STATE OUTPUTS
SCBS226J JULY 1993 REVISED DECEMBER 2001
recommended operating conditions (see Note 3)
SN54ABTE16245 MIN VCC, VCCBIAS VIH VIL VI IOH IOL t/v Supply voltage High-level input voltage input voltage Low-level input voltage input voltage Input voltage High-level output current output current Low-level output current output current Input transition rise or fall rate B bus A bus B bus A bus Outputs enabled OE Except OE OE Except OE 0 4.5 2 1.6 0.8 1.4 VCC 12 24 12 64 10 0 NOM 5 MAX 5.5 SN74ABTE16245 MIN 4.5 2 1.6 0.8 1.4 VCC 12 60 12 90 10 NOM 5 MAX 5.5 UNIT V V V V mA mA ns/V
TA Operating free-air temperature 55 125 40 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.
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SN54ABTE16245, SN74ABTE16245 16-BIT INCIDENT-WAVE SWITCHING BUS TRANSCEIVERS WITH 3-STATE OUTPUTS
SCBS226J JULY 1993 REVISED DECEMBER 2001
electrical characteristics over recommended operating free-air temperature range (unless otherwise noted)
PARAMETER VIK B port VOH A port TEST CONDITIONS CONDITIONS VCC = 4.5 V, VCC = 5.5 V, VCC = 4 5 V 4.5 VCC = 5.5 V, VCC = 4 5 V 4.5 VCC = 4 5 V 4.5 VCC = 4 5 V 4.5 VCC = 4 5 V 4.5 VCC = 5.5 V, II IOZH IOZL IO Ioff ICC A or B ports Control inputs A or B ports A port A port A port B port VCC = 5 5 V 5.5 V, VCC = 5.5 V, VCC = 5.5 V, VCC = 5 5 V 5.5 V, II = 18 mA IOH = 100 µA IOH = 1 mA IOH = 12 mA IOH = 1 mA IOH = 32 mA IOH = 64 mA IOL = 1 mA IOL = 12 mA IOL = 64 mA IOL = 90 mA VI = 0.8 V VI = 2 V VI = 0 to 5.5 V VI = VCC or GND or GND VO = 2.7 V VO = 0.5 V VO = 2 5 V 2.5 50 25 120 52 28 38 20 0.02 0.33 10 13 100 100 ±500 ±1 ±20 10 10 180 90 ±100 36 48 32 28 38 20 0.02 0.33 2.5 4.5 4 8 50 25 2.4 2 4.5 2.4 0.4 0.55 100 100 ±500 ±1 ±20 10 10 180 90 ±100 36 48 32 mA/ MHz pF pF mA µA µA µA mA µA µA 2.4 2 0.4 0.8 0.55 0.9 V MIN SN54ABTE16245 TYP MAX 1.2 VCC0.2 2.4 2 4.5 V MIN SN74ABTE16245 TYP MAX 1.2 VCC0.2 UNIT V
B port port VOL A port port
II(hold)
B port
VCC = 0, VI or VO 4.5 V, VCCBIAS = 0 Outputs high VCC = 5.5 V, IO = 0 5 5V 0, Outputs low or GND VI = VCC or GND Outputs disabled VCC = 5 V, , CL = 50 pF VI = 2.5 V or 0.5 V VO = 2.5 V or 0.5 V OE high OE low
ICCD Ci Cio
A or B ports or ports Control inputs I/O ports
All typical values are at VCC = 5 V, TA = 25°C. The parameters IOZH and IOZL include the input leakage current.
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POST OFFICE BOX 655303
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SN54ABTE16245, SN74ABTE16245 16-BIT INCIDENT-WAVE SWITCHING BUS TRANSCEIVERS WITH 3-STATE OUTPUTS
SCBS226J JULY 1993 REVISED DECEMBER 2001
live-insertion specifications over recommended operating free-air temperature range
PARAMETER TEST CONDITIONS CONDITIONS VCC = 0 to 4.5 V, VCCBIAS = 4.5 V to 5.5 V, IO(DC) = 0 VCC = 4.5 V to 5.5 V, VCCBIAS = 4.5 V to 5.5 V, IO(DC) = 0 VCC = 0 VCC = 0 0, VCCBIAS = 4.5 V to 5.5 V VCCBIAS = 4.75 V to 5.25 V VCCBIAS = 4 5 V 4.5 VO = 0 VO = 3 V 1.1 1.3 20 20 MIN SN54ABTE16245 TYP MAX 250 700 20 1.5 1.5 1.9 1.7 100 100 1.1 1.3 20 20 1.5 1.5 MIN SN74ABTE16245 TYP MAX 250 700 µA 20 1.9 1.7 100 100 V µA µA UNIT
ICC (VCCBIAS) (V
VO IO
A port port A port port
All typical values are at VCC = 5 V, TA = 25°C. VCC 0.5 V < VCCBIAS
switching characteristics over recommended ranges of supply voltage and operating free-air temperature, CL = 50 pF (unless otherwise noted) (see Figure 2)
PARAMETER tPLH tPHL tPLH tPHL tPZH tPZL tPZH tPZL tPHZ tPLZ tPHZ tPLZ FROM (INPUT) TO (OUTPUT) VCC = 5 V, TA = 25°C MIN 1.5 1.5 1.5 1.5 2 2 2 2 2 2 2 2 TYP 3.3 3.8 3 3.1 3.9 4.4 4.5 5 4.9 3.7 5.2 4 MAX 4.2 4.6 3.8 4 5.3 5.9 6 6.4 5.9 4.6 6.2 5 SN54ABTE16245 MIN 1.5 1.5 1.5 1.5 2 2 2 2 2 2 2 2 MAX 5.4 5.4 4.7 4.7 6.4 7 7.3 7.5 7 5.4 7.2 5.8 SN74ABTE16245 MIN 1.5 1.5 1.5 1.5 2 2 2 2 2 2 2 2 MAX 5.2 5.2 4.5 4.5 6.2 6.8 7.1 7.3 6.7 5.1 7 5.5 ns ns ns ns ns ns UNIT
A B
B A A B A B
OE OE OE OE
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