DocID026047 Rev 2 19/22
SR2 Part numbering
22
9 Part numbering
Table 6. Ordering information scheme
Example: SR2 H A R U
Device type
SR2
Smart Reset™ set up delay (t
SRC
)
(1)
1. Smart Reset
TM
delay (t
SRC
) is available from 0.5 s to 10 s in 0.5 s steps (typ.). Minimum order quantities
may apply. Contact local sales office for availability.
H = factory programmable t
SRC
= 4.0 s, no pull-up
L = factory programmable t
SRC
= 6.0 s, no pull-up
P = factory programmable t
SRC
= 7.5 s, no pull-up
U = factory programmable t
SRC
= 10.0 s, no pull-up
Outputs type
A = open drain, no pull-up, active low
Reset timeout period (t
REC
)
B = factory programmable t
REC
= 360 ms (typ.)
R = push-button controlled
Package
DL = UDFN6
Package marking information SR2
20/22 DocID026047 Rev 2
10 Package marking information
Figure 17. Package marking (top view)
Table 7. Package marking
Part number t
SRC
(s)
Smart Reset™
inputs
(1)
1. AL = active low.
Output
type
(2)
2. OD = open drain, AL = active low.
t
REC
option
(ms)
(3)
3. No t
REC
= push-button controlled reset pulse width.
Package Topmark
SR2HARU 4.0 AL OD, AL No t
REC
UDFN6 HA
SR2LABU 6.0 AL OD, AL 360 UDFN6 LC
SR2LARU 6.0 AL OD, AL No t
REC
UDFN6 LA
SR2PARU 7.5 AL OD, AL No t
REC
UDFN6 PA
SR2UABU 10.0 AL OD, AL 360 UDFN6 UC
SR2UARU 10.0 AL OD, AL No t
REC
UDFN6 UA
$
%
$0
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% PDUNLQJDUHDWRSPDUN
DocID026047 Rev 2 21/22
SR2 Revision history
22
11 Revision history
Table 8. Document revision history
Date Revision Changes
10-Mar-2014 1 Initial release
13-May-2014 2
Modified: t
REC
values Table 4 on page 15
Updated: Table 6 on page 19

SR2UABU

Mfr. #:
Manufacturer:
STMicroelectronics
Description:
Supervisory Circuits 6 pin Smart Reset
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

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