ISL21400 Datasheet, PDF (5/17 Pages) Intersil Corporation – Programmable Temperature Slope Voltage Reference

ISL21400
Serial Interface Specification (for SCL, SDA, A0, A1, A2 unless specified otherwise) (Continued)
SYMBOL
PARAMETER
TEST CONDITIONS
TYP
MIN
(Note 2)
t_sp
Pulse Width Suppression Time at Any pulse narrower than the
SDA and SCL Inputs
max spec is suppressed
(Note 3)
t_AA
SCL Falling Edge to SDA Output SCL falling edge crossing
Data Valid
30% of V_CC, until SDA exits
the 30% to 70% of V_CC
window (Note 3)
t_BUF
Time the Bus Must be Free Before
the Start of a New Transmission
SDA crossing 70% of V_CC
during a STOP condition, to
SDA crossing 70% of V_CC
during the following START
condition (Note 3)
1300
t_LOW
Clock LOW Time
Measured at the 30% of V_CC
crossing (Note 3)
1300
t_HIGH
Clock HIGH Time
Measured at the 70% of V_CC
600
crossing (Note 3)
t_SU:STA START Condition Setup Time
t_HD:STA START Condition Hold Time
t_SU:DAT Input Data Setup Time
t_HD:DAT Input Data Hold Time
t_SU:STO STOP Condition Setup Time
t_HD:STO
STOP Condition Hold Time for
Read, or Volatile Only Write
t_DH
Output Data Hold Time
t_R
SDA and SCL Rise Time
SCL rising edge to SDA
falling edge; both crossing
70% of V_CC (Note 3)
From SDA falling edge
crossing 30% of V_CC to SCL
falling edge crossing 70% of
V_CC (Note 3)
From SDA exiting the 30% to
70% of V_CC window, to SCL
rising edge crossing 30% of
V_CC (Note 3)
From SCL rising edge
crossing 70% of V_CC to SDA
entering the 30% to 70% of
V_CC window (Note 3)
From SCL rising edge
crossing 70% of V_CC, to SDA
rising edge crossing 30% of
V_CC (Note 3)
From SDA rising edge to SCL
falling edge; both crossing
70% of V_CC (Note 3)
From SCL falling edge
crossing 30% of V_CC, until
SDA enters the 30% to 70%
of V_CC window (Note 3)
From 30% to 70% of V_CC
(Note 3)
600
600
100
0
600
1300
0
20 +
0.1 x Cb
t_F
SDA and SCL Fall Time
From 70% to 30% of V_CC
(Note 3)
20 +
0.1 x Cb
Cb
Capacitive Loading of SDA or SCL Total on-chip and off-chip
10
(Note 4)
MAX
50
900
250
250
400
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
pF
5
FN8091.0
December 14, 2006