SN74ALVCH162827_08 Datasheet, PDF (1/13 Pages) Texas Instruments – 20-BIT BUFFER/DRIVER WITH 3-STATE OUTPUTS

www.ti.com
FEATURES
• Member of the Texas Instruments Widebus™
Family
• Output Ports Have Equivalent 26-Ω 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)
- 1000-V Charged-Device Model (C101)
DESCRIPTION/ORDERING INFORMATION
This 20-bit noninverting buffer/driver is designed for
1.65-V to 3.6-V V_CC operation.
The SN74ALVCH162827 is composed of two 10-bit
sections with separate output-enable signals. For
either 10-bit buffer section, the two output-enable
(1OE1 and 1OE2 or 2OE1 and 2OE2) inputs must
both be low for the corresponding Y outputs to be
active. If either output-enable input is high, the
outputs of that 10-bit buffer section are in the
high-impedance state.
The outputs, which are designed to sink up to 12 mA,
include equivalent 26-Ω resistors to reduce overshoot
and undershoot.
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.
SN74ALVCH162827
20-BIT BUFFER/DRIVER
WITH 3-STATE OUTPUTS
SCES013H – JULY 1995 – REVISED AUGUST 2004
DGG, DGV, OR DL PACKAGE
(TOP VIEW)
1OE1 1
1Y1 2
1Y2 3
GND 4
1Y3 5
1Y4 6
V_CC 7
1Y 8
1Y6 9
1Y7 10
GND 11
1Y8 12
1Y9 13
1Y10 14
2Y1 15
2Y2 ¹⁶
2Y3 ¹⁷
GND 18
2Y4 ¹⁹
2Y5 ²⁰
2Y6 ²¹
V_CC ²²
2Y7 ²³
2Y8 ²⁴
GND ²⁵
2Y9 ²⁶
2Y10 ²⁷
2OE1 ²⁸
56 1OE2
55 1A1
54 1A2
53 GND
52 1A3
51 1A4
50 V_CC
49 1A5
48 _1A6
47 _1A7
46 GND
45 _1A8
44 _1A9
43 _1A10
42 _2A1
41 _2A2
40 _2A3
39 _GND
38 _2A4
37 _2A5
36 _2A6
35 _VCC
34 _2A7
33 _2A8
32 _GND
31 _2A9
30 _2A10
29 _2OE2
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.
T_A
-40°C to 85°C
ORDERING INFORMATION
PACKAGE ⁽¹⁾
ORDERABLE PART NUMBER
SSOP - DL
Tube
Tape and reel
SN74ALVCH162827DL
SN74ALVCH162827DLR
TSSOP - DGG
Tape and reel
SN74ALVCH162827GR
TVSOP - DGV
Tape and reel
SN74ALVCH162827VR
TOP-SIDE MARKING
ALVCH162827
ALVCH162827
VH2827
(1) 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 the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 1995–2004, Texas Instruments Incorporated