SN65HVD21A Datasheet, PDF (11/22 Pages) Texas Instruments – 6 Mbps, Extended Common-Mode RS-485 Transceiver

www.ti.com
SN65HVD21A
SLLSE36 – DECEMBER 2010
PARAMETER MEASUREMENT INFORMATION (continued)
200 mV
40 mV
VID 200 mV
1.5 V
Bus Data Valid Region
Bus Data
Transition Region
Bus Data Valid Region
VOH
tp(SET)
tp(RESET)
R
1.5 V
VOL
Figure 15. Receiver Active Failsafe Definitions and Waveforms
100 Ω
Pulse Generator,
15 ms Duration,
1% Duty Cycle
VTEST
0V
15 ms
1.5 ms
V _TEST
Figure 16. Test Circuit and Waveforms, Transient Overvoltage Test
D PACKAGE
(TOP VIEW)
R
1
RE
2
DE
3
D
4
8
V_CC
7B
6A
5 GND
LOGIC DIAGRAM
R1
RE ²
3
DE
D4
6A
7
B
Copyright © 2010, Texas Instruments Incorporated
Product Folder Link(s) :SN65HVD21A
Submit Documentation Feedback
11