MAX13037 Datasheet, PDF (6/22 Pages) Maxim Integrated Products – Automotive Contact Monitor and Level Shifters with LDO Regulator

Automotive Contact Monitor and
Level Shifters with LDO Regulator
CS
t_LEAD
CLK
t_SI(SU) t_SI(HOLD)
SDI
MSB IN
t_SO(EN)
SDO
MSB OUT
Figure 1. SPI Timing Characteristics
t_VALID
V_L
MAX13037/
CS MAX13038 SDO
CS
1kΩ
15pF
SDO
t_SO(EN)
1/3V_L
Figure 2. SDO Enable/Disable Test Circuit and Timing Diagram
t_LAG
t_SO(DIS)
LSB OUT
t_SO(DIS)
V_OL + 0.1V_L
WDI
t_WD1
INT
RST
NORMAL OPERATION
(NO SWITCHES ACTIVE)
Figure 3. Watchdog Interrupt/Reset Timing Diagram
t_WD1
t_WD2
t_RST
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