TRANSCEIVER. SN65HVD09 Datasheet

SN65HVD09 Datasheet PDF


Part

SN65HVD09

Description

9-CHANNEL RS-422 / RS-485 TRANSCEIVER

Manufacture

etcTI

Page 25 Pages
Datasheet
Download SN65HVD09 Datasheet


SN65HVD09 Datasheet
SN65HVD09
www.ti.com............................................................................................................................................................................................ SLLS941 – DECEMBER 2008
9-CHANNEL RS-422 / RS-485 TRANSCEIVER
FEATURES
1
Designed to Operate at up to 20 Million Data
Transfers per Second on Each RS-422/RS-485
Channel
SN65HVD09 Packaged in Thin Shrink
Small-Outline Package with 0.5-mm Pin Pitch
ESD Protection on Bus Pins Exceeds 12kV
Low Disabled Supply Current 8 mA Typ
Thermal Shutdown Protection
Positive- and Negative-Current Limiting
Power-Up/Down Glitch Protection
DESCRIPTION
The SN65HVD09 is a 9-channel RS-422 / RS-485
transceiver suitable for industrial applications. It offers
improved switching performance, a small package,
and high ESD protection. The precise skew limits
ensures that the propagation delay times, not only
from channel-to-channel but from device-to-device,
are closely matched for the tight skew budgets
associated with high-speed parallel data buses.
Patented thermal enhancements are used in the thin
shrink, small-outline package (TSSOP), allowing
operation over the industrial temperature range. The
TSSOP package offers very small board area
requirements while reducing the package height to
1 mm. This provides more board area and allows
component mounting to both sides of the printed
circuit boards for low-profile, space-restricted
applications such as small form-factor hard disk
drives.
The HVD09 can withstand electrostatic discharges
exceeding 12 kV using the human-body model, and
600 V using the machine model on the RS-485 I/O
terminals. This provides protection from the noise that
can be coupled into external cables. The other
terminals of the device can withstand discharges
exceeding 4 kV and 400 V respectively.
Configuration and
Control Logic
9 Single-ended TTL
I/O Channels
Each of the nine half-duplex channels of the HVD09
is designed to operate with either RS-422 or RS-485
communication networks.
The SN65HVD09 is characterized for operation over
an ambient air temperature range of –40°C to 85°C.
SN65HVD09 DGG
(TOP VIEW)
GND
BSR
GRE
1A
1DE/RE
2A
2DE/RE
3A
3DE/RE
4A
4DE/RE
VCC
GND
GND
GND
GND
GND
VCC
5A
5DE/RE
6A
6DE/RE
7A
7DE/RE
8A
8DE/RE
9A
9DE/RE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
56 CDE2
55 CDE1
54 CDE0
53 9B+
52 9B-
51 8B+
50 8B-
49 7B+
48 7B-
47 6B+
46 6B-
45 VCC
44 GND
43 GND
42 GND
41 GND
40 GND
39 VCC
38 5B+
37 5B-
36 4B+
35 4B-
34 3B+
33 3B-
32 2B+
31 2B-
30 1B+
29 1B-
Terminals 13 through 17, and 40 through 44 are
connected together to the package lead frame
and signal ground.
HVD09
9 Differential
RS-422/RS-485
I/O Channels
1
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.
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 © 2008, Texas Instruments Incorporated

SN65HVD09 Datasheet
SN65HVD09
SLLS941 – DECEMBER 2008............................................................................................................................................................................................ www.ti.com
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
PIN FUNCTIONS
PIN
NAME
NO.
1A to 9A
4,6,8,10,
19,21,23,
25,27
1B– to 9B–
29,31,33,
35,37,.46
,
48,50,52
1B+ to 9B+
30,32,34,
36,38,47,
49,51,53
LOGIC
LEVEL
TTL
RS-485
RS-485
BSR
2 TTL
CDE0
54
CDE1
55
CDE2
CRE
1DE/RE to
9DE/RE
GND
VCC
56
3
5,7,9,11,
20,22,24,
26,28
1,13,14,
15,16,17,
40,41,42,
43,44
12,18,39,
45
TTL
TTL
TTL
TTL
TTL
NA
NA
I/O
I/O
I/O
I/O
Input
Input
Input
Input
Input
Input
Power
Power
TERMINATION DESCRIPTION
Pullup
1A to 9A carry data to and from the communication controller.
Pulldown
1B– to 9B– are the inverted data signals of the balanced pair to/from the bus.
Pullup
Pullup
Pulldown
Pulldown
Pulldown
Pullup
Pullup
NA
NA
1B+ to 9B+ are the noninverted data signals of the balanced pair to/from the bus.
BSR is the bit significant response. BSR disables receivers 1 through 8 and enables
wired-OR drivers when BSR and DE/RE and CDE1 or CDE2 are high. Channel 9 is
placed in a high-impedance state with BSR high.
CDE0 is the common driver enable 0. Its input signal enables all drivers when CDE0 and
1DE/RE – 9DE/RE are high.
CDE1 is the common driver enable 1. Its input signal enables drivers 1 to 4 when CDE1 is
high and BSR is low.
CDE2 is the common driver enable 2. When CDE2 is high and BSR is low, drivers 5 to 8
are enabled.
CRE is the common receiver enable. When high, CRE disables receiver channels 5 to 9.
1DE/RE–9DE/RE are direction controls that transmit data to the bus when it and CDE0
are high. Data is received from the bus when 1DE/RE–9DE/RE and CRE and BSR are
low and CDE1 and CDE2 are low.
GND is the circuit ground. All GND terminals except terminal 1 are physically tied to the
die pad for improved thermal conductivity.(1)
Supply voltage
(1) Terminal 1 must be connected to signal ground for proper operation.
2 Submit Documentation Feedback
Copyright © 2008, Texas Instruments Incorporated
Product Folder Link(s) :SN65HVD09


Features Datasheet pdf SN65HVD09 www.ti.com.................... ....................................... ....................................... ....................................... ....................................... ............ SLLS941 – DECEMBER 2008 9-CHANNEL RS-422 / RS-485 TRANSCEIVER FEATURES 1 • Designed to Operate at u p to 20 Million Data Transfers per Seco nd on Each RS-422/RS-485 Channel • SN 65HVD09 Packaged in Thin Shrink Small-O utline Package with 0.5-mm Pin Pitch ESD Protection on Bus Pins Exceeds 12 kV • Low Disabled Supply Current 8 mA Typ • Thermal Shutdown Protection Positive- and Negative-Current Limiti ng • Power-Up/Down Glitch Protection DESCRIPTION The SN65HVD09 is a 9-channe l RS-422 / RS-485 transceiver suitable for industrial applications. It offers improved switching performance, a small package, and high ESD protection. The precise skew limits ensures that the pr opagation delay times, not only from ch annel-to-channel but from device-to-device, are closely matched for the tight s.
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