SN65HVD09 Datasheet, PDF (1/25 Pages) Texas Instruments – 9-CHANNEL RS-422 / RS-485 TRANSCEIVER

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
1
BSR
2
GRE
3
1A
4
1DE/RE
5
2A
6
2DE/RE
7
3A
8
3DE/RE
9
4A
10
4DE/RE
11
V_CC
12
GND
13
GND
14
GND
15
GND
16
GND
17
V_CC
18
5A
19
5DE/RE
20
6A
21
6DE/RE
22
7A
23
7DE/RE
24
8A
25
8DE/RE
26
9A
27
9DE/RE
28
56
CDE2
55
CDE1
54
CDE0
53
9B+
52
9B-
51
8B+
50
8B-
49
7B+
48
7B-
47
6B+
46
6B-
45
V_CC
44
GND
43
GND
42
GND
41
GND
40
GND
39
V_CC
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