SR1 datasheet(18/21 Pages) STMICROELECTRONICS

18 / 21 page

Part numbering

SR1

18/21

DocID026048 Rev 2

Part numbering

Table 6. Ordering information scheme

Example:

SR1

Device type

SR1

Smart Reset setup delay (tSRC)

(1)

Smart Reset delay (tSRC) 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.

C = factory programmable tSRC = 1.5 s (typ.)

H = factory programmable tSRC = 4.0 s (typ.)

L = factory programmable tSRC = 6.0 s (typ.)

P = factory programmable tSRC = 7.5 s (typ.)

U = factory programmable tSRC = 10.0 s (typ.)

Inputs, outputs type(2)

Push-pull reset output type also available (active low or active high). SR input and open drain reset output

available with optional pull-up resistor. Minimum order quantities may apply. Contact local sales office for

availability.

A = active low SR input with no pull-up,

active low open drain RST output with no pull-up

B = active low SR input with pull-up,

active low open drain RST output with no pull-up

Reset timeout period (tREC)

A = factory programmable tREC = 210 ms (typ.)

B = factory programmable tREC = 360 ms (typ.)

R = push-button controlled (no defined tREC)

Package

U = UDFN-6L

SR1 데이터시트(PDF) 18 Page - STMicroelectronics