SAP51C-A-G1-R ZMDI, SAP51C-A-G1-R Datasheet - Page 44

• Manufacturer Part Number: SAP51C-A-G1-R
• Description: Interface - Specialized ASI
• Manufacturer: ZMDI

Specifications of SAP51C-A-G1-R

• Rohs: yes
• Product Type: Actuator Sensor Interface IC
• Operating Supply Voltage: 16 V to 34 V
• Supply Current: 6 mA
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: SOP-20
• Minimum Operating Temperature: - 25 C

Note: The power-on reset circuit has a threshold voltage reference. This reference matches the process
4.13.2. Logic controlled Reset
The IC also becomes reset after reception of Reset_Slave or Broadcast_Reset commands, expiration of the
(enabled) Communication Watchdog or entering of a forbidden state machine state (i.e. due to heavy EMI).
4.13.3. External Reset
The IC can be reset externally by pulling the DSTBn pin LOW for more than a minimum reset time. The
external reset input function is provided in every operational mode of the IC – Slave Mode and
Master/Repeater Mode. The following signal timings apply:
Table 31: Timing of external reset
Symbol Parameter
t
t
t
Data Sheet
October 20, 2011
noRESET
RESET
INIT
SAP5S / SAP51
Universal Actuator-Sensor Interface IC
tolerance of the logic levels and must not be very accurate. All values depend slightly on the raise and
fall time of the supply voltage.
UIN
U5R
reset
DSTBn LOW time for no reset initiation
Reset execution time,
DSTBn H/L transition to Hi-Z output drives at DO0...DO3, P0…P3
State Machine initialization time after reset (E²PROM read out)
© 2011 Zentrum Mikroelektronik Dresden AG — Rev. 3.0
All rights reserved. The material contained herein may not be reproduced, adapted, merged, translated, stored, or used without
the prior written consent of the copyright owner. The information furnished in this publication is PRELIMINARY and subject to
changes without notice.
about 15V
V
V
POR1R
POR1F
Figure 9: Power-On Behavior (all modes)
t
LOW
Min
Max
90
99
2
Unit
ms
ms
ms
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Note