FM4005 데이터 시트보기 (PDF) - Ramtron International Corporation
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FM4005 Datasheet PDF : 23 Pages
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Pin Configuration
CNT1
1
14
CNT2
2
13
DNU
3
12
DNU
4
11
CAL/PFO
5
10
RST
6
9
VSS
7
8
VDD
SCL
SDA
X2
X1
PFI
VBAK
FM4005
Pin Name
CNT1, CNT2
CAL/PFO
/RST
PFI
X1, X2
SDA
SCL
DNU
VBAK
VDD
VSS
Function
Battery-backed Counter Inputs
Clock Calibration and Early
Power-fail Output
Reset Input/Output
Early Power-fail Input
Crystal Connections
Serial Data
Serial Clock
Do Not Use
Battery-Backup Supply
Supply Voltage
Ground
Ordering Information
Base Configuration Operating Voltage
FM4005
2.7-5.5V
Reset Threshold
2.6V, 2.9, 3.9, 4.4V
Ordering Part Number
FM4005-G
Rev. 2.3
Oct. 2006
Page 2 of 23
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