SN74LVCH16540A Datasheet, PDF (1/9 Pages) Texas Instruments – 16-BIT BUFFER/DRIVER WITH 3-STATE OUTPUTS

SN74LVCH16540A
16-BIT BUFFER/DRIVER
WITH 3-STATE OUTPUTS
SCAS569G – MARCH 1996 – REVISED JUNE 1998
D Member of the Texas Instruments
Widebus ™ Family
D EPIC™ (Enhanced-Performance Implanted
CMOS) Submicron Process
D Typical V_OLP (Output Ground Bounce)
< 0.8 V at V_CC = 3.3 V, T_A = 25°C
D Typical V_OHV (Output V_OH Undershoot)
> 2 V at V_CC = 3.3 V, T_A = 25°C
D Supports Mixed-Mode Signal Operation on
All Ports (5-V Input/Output Voltage With
3.3-V V_CC)
D Power Off Disables Outputs, Permitting
Live Insertion
D Latch-Up Performance Exceeds 250 mA Per
JESD 17
D Bus Hold on Data Inputs Eliminates the
Need for External Pullup/Pulldown
Resistors
D Package Options Include Plastic 300-mil
Shrink Small-Outline (DL) and Thin-Shrink
Small-Outline (DGG) Packages
description
This 16-bit buffer/driver is designed for 1.65-V to
3.6-V V_CC operation, and provides a
high-performance bus interface for wide data
paths.
DGG OR DL PACKAGE
(TOP VIEW)
1OE1 ¹
1Y1 ²
1Y2 ³
GND ⁴
1Y3 ⁵
1Y4 ⁶
V_CC ⁷
1Y5 ⁸
1Y6 ⁹
GND ¹⁰
1Y7 ¹¹
1Y8 ¹²
2Y1 ¹³
2Y2 ¹⁴
GND ¹⁵
2Y3 ¹⁶
2Y4 ¹⁷
V_CC ¹⁸
2Y5 ¹⁹
2Y6 ²⁰
GND ²¹
2Y7 ²²
2Y8 ²³
2OE1 ²⁴
48 _1OE2
47 _1A1
46 _1A2
45 _GND
44 _1A3
43 _1A4
42 _VCC
41 _1A5
40 _1A6
39 _GND
38 _1A7
37 _1A8
36 _2A1
35 _2A2
34 _GND
33 _2A3
32 _2A4
31 _VCC
30 _2A5
29 _2A6
28 _GND
27 _2A7
26 _2A8
25 _2OE2
The 3-state control gate is a 2-input AND gate with active-low inputs so that if either output-enable (OE1 or OE2)
input is high, all corresponding outputs are in the high-impedance state.
Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of these devices as translators
in a mixed 3.3-V/5-V system environment.
To ensure the high-impedance state during power up or power down, OE should be tied to V_CC through a pullup
resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
Active bus-hold circuitry is provided to hold unused or floating data inputs at a valid logic level.
The SN74LVCH16540A is characterized for operation from –40°C to 85°C.
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.
EPIC and Widebus are trademarks 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 © 1998, Texas Instruments Incorporated
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