Datasheet

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 
SCLS555JUNE 2004
DESCRIPTION
The SN74LV8153 is a serial-to-parallel data converter. It
accepts serial input data and outputs 8-bit parallel data.
The automatic data-rate detection feature of the
SN74LV8153 eliminates the need for an external oscillator
and helps with cost and board real-estate savings.
The OUTSEL pin is used to choose between open
collector and push-pull outputs. The open-collector option
is suitable when this device is used in applications such as
LED interface, where high drive current is required. SOUT
is the output that acknowledges reception of the serial
data.
To ensure the high-impedance state during power up or
power down, OE should be tied to V
CC1
through a pullup
resistor; the minimum value of the resistor is determined
by the current-sinking capability of the driver.
N OR PW PACKAGE
(TOP VIEW)
V
CC1
A0
A1
A2
D
OUTSEL
RESET
OE
SOUT
GND
V
CC2
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
GND
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
FEATURES
D Single-Wire Serial Data Input
D Compatible With UART Serial-Data Format
D Up to Eight Devices (64-Bit Parallel) Can
Share the Same Bus by Using Different
Combinations of A0, A1, A2
D Up to 40 mA Current Drive in Open-Collector
Mode for Driving LEDs
D Outputs Can be Configured as
Open-Collector or Push-Pull
D Internal Oscillator and Counter for
Automatic Data-Rate Detection
D Output Levels Are Referenced to V
CC2
and
Can Be Configured From 3 V to 12 V
D Latch-Up Performance Exceeds 250 mA Per
JESD 17
D ESD Protection Exceeds JESD 22
− 2000-V Human-Body Model (A114-A)
− 1000-V Charged-Device Model (C101)
SUMMARY OF RECOMMENDED
OPERATING CONDITIONS
PARAMETER
V
CC1
3 V to 5.5 V
V
CC2
3 V to 13.2 V
I
OL
40 mA @ V
CC2
= 4.5 V
(open-collector mode)
I
OH
−24 mA @ V
CC2
= 12 V
(push-pull mode)
Maximum Data Rate 24 Kbps
FUNCTION TABLE
(each buffer)
INPUTS
OUTPUT
OUTPUT
OUTSEL RESET OE Dn
OUTPUT
Yn
OUTPUT
STRUCTURE
L H L H L
L HLL H
Open collector
L XHX H
Open collector
L LXX H
H H L H H
H HLL L
Push-pull
H XHX Z
Push-pull
H L L X L
In the open-collector mode (OUTSEL = L), the outputs are inverted,
e.g., Y1 = l, when D1 = H
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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.
www.ti.com
Copyright 2004, Texas Instruments Incorporated

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