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MM1025 반도체 회로 부품 판매점

(MM1025 / MM1174) System Reset (with battery back-up) Monolithic IC



MITSUMI ELECTRIC 로고
MITSUMI ELECTRIC
MM1025 데이터시트, 핀배열, 회로
MITSUMI
System Reset (with battery back-up) MM1025, 1174
System Reset (with battery back-up)
Monolithic IC MM1025, 1174
Outline
These ICs were developed for D-RAM and dummy S-RAM battery back-up. D-RAM and dummy S-RAM
power supplies differ from that of S-RAMs because 5V or 3.3V of power supply is required even during
battery back-up. Therefore, these ICs provide voltage from a stable power supply during both normal
operation and back-up. Also, the internal stable power supply switches automatically to battery back-up if the
main power supply voltage goes down for any reason.
Features
1. Battery back-up
MM1025
Current consumption
Input/output voltage difference IL=40mA
Output current
MM1174
Current consumption
Input/output voltage difference IL=40mA
Output current
2. Normal operation
MM1025
Input/output voltage difference IL=80mA (built-in transistor)
Output current
VCC=6V
External transistor drive current VCC= 6V
Current consumption
MM1174 (for external transistor)
Input/output voltage difference IL=200mA
Output current
External transistor drive current (no built-in TR) VCC=3.6V
Current consumption
600µA typ.
0.25V typ.
40mA max.
300µA typ.
0.13V typ.
40mA max.
0.29V typ.
80mA typ.
15mA typ.
900µA max.
0.13V typ.
Depends on external transistor
10mA typ.
500µA max.
3. Switching voltage from VCC to Battery VCC=High Low
MM1025
4.9V typ.
MM1174
3.25V typ.
4. VCC-Battery forced switching and detection voltage adjustment possible
Package
SOP-8A
Applications
1. Memory cards (D-RAM cards, other)
2. PCs, word processors and other equipment with D-RAMs
3. Fax machines, photocopiers and other office equipment with D-RAMs


MM1025 데이터시트, 핀배열, 회로
MITSUMI
Pin Assignment
System Reset (with battery back-up) MM1025, 1174
8765
1234
SOP-8P (A)
1
2 GND
3 GND
4 CS
5 VBATT
6 VOUT
7 VCC
8 TRB
Pin Description
Pin No.
1
2
3
4
5
6
7
8
Block Diagram
Pin name
GND
GND
CS
VBATT
VOUT
VCC
TRB
Function
Forced switching and detection voltage adjustment
External transistor drive
Absolute Maximum Ratings (Ta=25°C)
Item
Operating temperature
Storage temperature
Maximum output current 1
Maximum output current 2
Power supply voltage
Power consumption
Symbol
TOPR
TSTG
IL max.
IL max.
VCC
Pd
Rating
-20~+70
40~+125
80
40
-0.3~+18
300
Units
°C
°C
mA
mA
V
mW




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MM1025 battery

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