S-19400 Datasheet, PDF (9/36 Pages) Seiko Instruments Inc – Watchdog operation voltage range

FOR AUTOMOTIVE 125°C OPERATION LOW CURRENT CONSUMPTION WATCHDOG TIMER WITH RESET FUNCTION
Rev.2.1_00
S-19400/19401 Series
 Absolute Maximum Ratings
Table 7
(Ta = −40°C to +125°C unless otherwise specified)
Item
Symbol
Absolute Maximum Rating
Unit
VDD pin voltage
WDI pin voltage
WEN pin voltage
___
W / T pin voltage
V_DD
V_WDI
V_WEN
V_w^___
/T
V_SS − 0.3 to V_SS + 7.0
V
V_SS − 0.3 to V_DD + 0.3 ≤ V_SS + 7.0
V
V_SS − 0.3 to V_DD + 0.3 ≤ V_SS + 7.0
V
V_SS − 0.3 to V_DD + 0.3 ≤ V_SS + 7.0
V
CPOR pin voltage
CWDT pin voltage
_______
RST pin voltage
A / B / C / D / E / F type
G / H / I / J / K / L type
________
WDO pin voltage
A / B / C / D / E / F type
G / H / I / J / K / L type
Operation ambient temperature
Storage temperature
V_CPOR
V_CWDT
V^_______
RST
V^________
WDO
T_opr
T_stg
V_SS − 0.3 to V_DD + 0.3 ≤ V_SS + 7.0
V
V_SS − 0.3 to V_DD + 0.3 ≤ V_SS + 7.0
V
V_SS − 0.3 to V_DD + 0.3 ≤ V_SS + 7.0
V
V_SS − 0.3 to V_SS + 7.0
V
V_SS − 0.3 to V_DD + 0.3 ≤ V_SS + 7.0
V
V_SS − 0.3 to V_SS + 7.0
V
−40 to +125
°C
−40 to +150
°C
Caution The absolute maximum ratings are rated values exceeding which the product could suffer physical
damage. These values must therefore not be exceeded under any conditions.
 Thermal Resistance Value
Table 8
Item
Symbol
Condition
Junction-to-ambient thermal resistance^*1 θja
TMSOP-8
Board 1
Board 2
HSNT-8(2030)
Board 1
Board 2
*1. Test environment: compliance with JEDEC STANDARD JESD51-2A
Min. Typ. Max. Unit
−
160
−
°C/W
−
133
−
°C/W
−
181
−
°C/W
−
135
−
°C/W
Remark Refer to " Thermal Characteristics" for details of power dissipation and test board.
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