BD37A19FVM_10 ROHM [Rohm], BD37A19FVM_10 Datasheet - Page 6

• Manufacturer Part Number: BD37A19FVM_10
• Description: Voltage Detector ICs with Watchdog Timer
• Manufacturer: ROHM [Rohm]

●I/O Circuit diagram
●Timing chart
© 2010 ROHM Co., Ltd. All rights reserved.
BD37A19FVM, BD37A41FVM, BD87A28FVM, BD87A29FVM,
BD87A34FVM, BD87A41FVM, BD99A41F
(BD37A□□FVM／BD99A41F)
www.rohm.com
(BD87A□□FVM)
CTW
CLK
V CTW
CLK
VCT V CTH
VDD
INH
INH
VDD
R ESET
0
0
VDD
0
0
0
0
0
V DETH
V DET
VthH
CTW
VthL
CT
VDD
(1) (2) (3)
*1
T PLH
(4) (5)
TWH
*2
(4)
*4 TWCLK
(5)
TWL
*3
(6)
(7)
TWCLK
INH
(7)
VDD
(4) (5)(8)
RESET
Fig.15
Fig.16
6/10
INH
when INH is low.
WDT circuit turns off
(9)
WDT circuit turns off
when INH is high.
(4)
RESET
(5)
(10)
(2)
(3)
(4) (5) (10) (2)
CT
VDD
(3)
(4) (5)
VDD
CT
(10)
(11)
Technical Note
2010.12 - Rev.A
V DETH = VDET + Vrhys
10Ω(Typ.)