|
|
Part: 74ALVCHR16245ZQLR
Category:
Logic
-> Transceivers
-> Standard Transceivers
Description: ti SN74ALVCHR16245, 16-Bit Bus Transceiver With 3-State Outputs
Company: Texas Instruments, Inc.
Datasheet: Download 74ALVCHR16245ZQLR datasheet File size : 67 kB
Request For quote: Find where to buy 74ALVCHR16245ZQLR
Datasheet text preview:
SN74ALVCHR16245 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS
SCES064F DECEMBER 1995 REVISED AUGUST 2003
D D D D D D D D
Member of the Texas Instruments Widebus Family Operates From 1.65 V to 3.6 V Max tpd of 4.2 ns at 3.3 V ±12-mA Output Drive at 3.3 V All Outputs Have Equivalent 26- Series Resistors, So No External Resistors Are Required Bus Hold on Data Inputs Eliminates the Need for External Pullup/Pulldown Resistors Latch-Up Performance Exceeds 250 mA Per JESD 17 ESD Protection Exceeds JESD 22 2000-V Human-Body Model (A114-A) 200-V Machine Model (A115-A)
DGG OR DL PACKAGE (TOP VIEW)
description/ordering information
This 16-bit (dual-octal) noninverting bus transceiver is designed for 1.65-V to 3.6-V VCC operation. The SN74ALVCHR16245 is designed for asynchronous communication between data buses. The control-function implementation minimizes external timing requirements.
1DIR 1B1 1B2 GND 1B3 1B4 VCC 1B5 1B6 GND 1B7 1B8 2B1 2B2 GND 2B3 2B4 VCC 2B5 2B6 GND 2B7 2B8 2DIR
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25
1OE 1A1 1A2 GND 1A3 1A4 VCC 1A5 1A6 GND 1A7 1A8 2A1 2A2 GND 2A3 2A4 VCC 2A5 2A6 GND 2A7 2A8 2OE
This device can be used as two 8-bit transceivers or one 16-bit transceiver. It allows 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. All outputs, which are designed to sink up to 12 mA, include equivalent 26- series resistors to reduce overshoot and undershoot. ORDERING INFORMATION
TA SSOP DL 40°C to 85 C 85°C TSSOP DGG VFBGA GQL VFBGA ZQL (Pb-free) PACKAGE Tape and reel Tape and reel Tape and reel ORDERABLE PART NUMBER SN74ALVCHR16245LR SN74ALVCHR16245GR SN74ALVCHR16245KR 74ALVCHR16245ZQLR TOP-SIDE MARKING ALVCHR16245 ALVCHR16245 VR245
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package.
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 2003, Texas Instruments Incorporated
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
1
SN74ALVCHR16245 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS
SCES064F DECEMBER 1995 REVISED AUGUST 2003
description/ordering information (continued)
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. 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.
GQL OR ZQL PACKAGE (TOP VIEW) 1 A B C D E F G H J K 2 3 4 5 6
terminal assignments
1 A B C D E F G H J K 1DIR 1B2 1B4 1B6 1B8 2B1 2B3 2B5 2B7 2DIR 2 NC 1B1 1B3 1B5 1B7 2B2 2B4 2B6 2B8 NC GND VCC GND NC GND VCC GND NC 3 NC GND VCC GND 4 NC GND VCC GND 5 NC 1A1 1A3 1A5 1A7 2A2 2A4 2A6 2A8 NC 6 1OE 1A2 1A4 1A6 1A8 2A1 2A3 2A5 2A7 2OE
NC No internal connection FUNCTION TABLE (each 8-bit section) INPUTS OE L L H DIR L H X OPERATION B data to A bus A data to B bus Isolation
logic diagram (positive logic)
1DIR 1 2DIR 48 24
1OE
25
2OE
1A1
47
2A1
36
2
1B1
13
2B1
To Seven Other Channels Pin numbers shown are for the DGG and DL packages.
To Seven Other Channels
2
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
SN74ALVCHR16245 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS
SCES064F DECEMBER 1995 REVISED AUGUST 2003
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 V to 4.6 V Input voltage range, VI: Except I/O ports (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 V to 4.6 V I/O ports (see Notes 1 and 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 V to VCC + 0.5 V Output voltage range, VO (see Notes 1 and 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 V to VCC + 0.5 V Input clamp current, IIK (VI < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 mA Output clamp current, IOK (VO < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 mA Continuous output current, IO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±50 mA Continuous current through each VCC or GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±100 mA Package thermal impedance, JA (see Note 3): DGG package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70°C/W DL package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63°C/W GQL/ZQL package . . . . . . . . . . . . . . . . . . . . . . . . . . . 42°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 negative-voltage and output voltage ratings may be exceeded if the input and output current ratings are observed. 2. This value is limited to 4.6 V maximum. 3. The package thermal impedance is calculated in accordance with JESD 51-7.
recommended operating conditions (see Note 4)
MIN VCC VIH Supply voltage High-level input voltage VCC = 1.65 V to 1.95 V VCC = 2.3 V to 2.7 V VCC = 2.7 V to 3.6 V VCC = 1.65 V to 1.95 V VIL VI VO Low-level input voltage Input voltage Output voltage VCC = 1.65 V VCC = 2.3 V VCC = 2.7 V VCC = 3 V VCC = 1.65 V VCC = 2.3 V VCC = 2.7 V VCC = 3 V VCC = 2.3 V to 2.7 V VCC = 2.7 V to 3.6 V 0 0 1.65 0.65 × VCC 1.7 2 0.35 × VCC 0.7 0.8 VCC VCC 2 6 8 12 2 6 8 12 10 ns/V mA mA V V V V MAX 3.6 UNIT V
IOH
High-level output current
IOL
Low-level output current
t/v
Input transition rise or fall rate
TA Operating free-air temperature 40 85 °C NOTE 4: 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.
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
3
SN74ALVCHR16245 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS
SCES064F DECEMBER 1995 REVISED AUGUST 2003
electrical characteristics over recommended operating free-air temperature range (unless otherwise noted)
PARAMETER IOH = 100 µA IOH = 2 mA IOH = 4 mA VOH IOH = 6 mA IOH = 8 mA IOH = 12 mA IOL = 100 µA IOL = 2 mA IOL = 4 mA VOL IOL = 6 mA IOL = 8 mA IOL = 12 mA II VI = VCC or GND VI = 0.58 V VI = 1.07 V VI = 0.7 V II(hold) VI = 1.7 V VI = 0.8 V VI = 2 V VI = 0 to 3.6 V IOZ§ ICC ICC Ci Cio Control inputs A or B ports VO = VCC or GND VI = VCC or GND, One input at VCC 0.6 V, VI = VCC or GND VO = VCC or GND IO = 0 Other inputs at VCC or GND TEST CONDITIONS VCC 1.65 V to 3.6 V 1.65 V 2.3 V 2.3 V 3V 2.7 V 3V 1.65 V to 3.6 V 1.65 V 2.3 V 2.3 V 3V 2.7 V 3V 3.6 V 1.65 V 2.3 V 3V 3.6 V 3.6 V 3.6 V 3 V to 3.6 V 3.3 V 3.3 V 4 9 25 25 45 45 75 75 ±500 ±10 40 750 µA µA µA pF µA MIN TYP MAX UNIT VCC0.2 1.2 1.9 1.7 2.4 2 2 0.2 0.45 0.4 0.55 0.55 0.6 0.8 ±5 µA V V
pF All typical values are at VCC = 3.3 V, TA = 25°C. This is the bus-hold maximum dynamic current. It is the minimum overdrive current required to switch the input from one state to another. § For I/O ports, the parameter IOZ includes the input leakage current.
switching characteristics over recommended operating free-air temperature range (unless otherwise noted) (see Figure 1)
PARAMETER tpd ten FROM (INPUT) A or B OE TO (OUTPUT) B or A B or A VCC = 1.8 V TYP ¶ ¶ ¶ VCC = 2.5 V ± 0.2 V MIN 1 1 1 MAX 4.9 6.8 6.3 VCC = 2.7 V MIN MAX 4.7 6.7 5.7 VCC = 3.3 V ± 0.3 V MIN 1 1 1 MAX 4.2 5.6 5.5 ns ns ns UNIT
tdis B or A OE ¶ This information was not available at the time of publication.
4
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
SN74ALVCHR16245 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS
SCES064F DECEMBER 1995 REVISED AUGUST 2003
operating characteristics, TA = 25°C
PARAMETER Cpd Power dissipation capacitance Outputs enabled Outputs disabled TEST CONDITIONS CL = 50 pF, f = 10 MHz VCC = 1.8 V TYP VCC = 2.5 V TYP 24 4 VCC = 3.3 V TYP 32 5 UNIT pF
This information was not available at the time of publication.
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
5
Others parts begin by 74
74-1 74-2 74-3 74-4 74-5 74-6 74-7 74-8 74-9 74-10 74-11 74-12 74-13 74-14 74-15 74-16 74-17 74-18 74-19 74-20 74-21 74-22 74-23 74-24 74-25 74-26 74-27 74-28 74-29 74-30 74-31 74-32 74-33 74-34 74-35 74-36 74-37 74-38 74-39 74-40 74-41 74-42 74-43 74-44 74-45 74-46 74-47 74-48 74-49 74-50 74-51 74-52 74-53 74-54 74-55 74-56 74-57 74-58 74-59 74-60 74-61 74-62
|
|
|
