X9448 Datasheet, PDF (11/19 Pages) Xicor Inc. – Mixed Signal with 2-Wire Interface

X9448
CAPACITANCE
Symbol
C_I/O
C_IN
C_L, C_H, C_W
Test
Input/output capacitance (SDA)
Input capacitance (A0, A1, A2, A3, and SCL)
Potentiometer capacitance
Typical
8
6
10/10/25
Power-Up Timing and Sequence
Power-up sequence⁽¹⁾: (1) V_CC (2) V+ and V-
Power-down sequence: no limitation
{V+ ≤ V_CC at all times}
Unit
pF
pF
pF
Test Conditions
V_I/O = 0V
V_IN = 0V
A.C. TEST CONDITIONS
Input pulse levels
Input rise and fall times
V_CC x 0.1 to V_CC x 0.9
10ns
Input and output timing level V_CC x 0.5
Note: (1) Applicable to recall and power consumption applica-
tions
EQUIVALENT A.C. LOAD CIRCUIT
SD Output
5V
1533Ω
100pF
2.7V
100pF
TIMING DIAGRAMS
START and STOP Timing
(START)
SCL
t_SU:STA
SDA
t_R
t_HD:STA
t_R
Input Timing
t_CYC
SCL
SDA
t_SU:DAT
t_F
t_SU:STO
t_F
(STOP)
t_HIGH
t_LOW
t_HD:DAT
t_BUF
11
FN8201.0
April 18, 2005