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參數資料
| 型號： | PST621 |
| 廠商： | MITSUMI ELECTRIC |
| 英文描述： | System Reset (with battery back-up) Monolithic IC |
| 中文描述： | 系統復位（帶電池備份）單片集成電路 |
| 文件頁數： | 1/6頁 |
| 文件大小： | 193K |
| 代理商： | PST621 |
MITSUMI
System Reset (with battery back-up) PST620, 621
System Reset (with battery back-up)
Monolithic IC PST620, 621
Outline
These ICs are part of the regular series of back-up ICs, and use capacitors (super capacitor, large capacity
chemical capacitor) as back-up power supply. They control 1-chip microcomputer high-speed, low-speed,
and stand-by modes (MNI control).
These ICs also are capable of controlling data save in EPROM and other nonvolatile memories during power outage.
Features
1. Low current consumption
2. Capacitors (super capacitor, large capacity chemical capacitor) are used for back-up power supply, lowering
system cost
3. Stable 1-chip microcomputer crystal oscillator rise time maintained with the built-in pulse shaver.
4. In addition to power outage detection for main power supply (+5V), there are built-in pins to detect AC power
supply and +5V power supply primary side
5. Reset signal output by back-up power supply (super capacitor, large capacity chemical capacitor) detection
Applications
1. VCR
2. Audio equipment
3. Communications equipment
4. Rice cookers, etc.
Pin Assignment
Pin Description
PST620
1
4
3
2
8
5
6
7
Pin No.
Pin name
Function
1
V
AC
Has +2.0V detection voltage to detect AC power supply and
stable power supply primary side, for quick power outage detection.
+5V main power supply
Back-up power supply (back-up capacitor connected)
Pulse width setting pin for pulse shaver
(capacitor and resistor connected)
Reset output
Pulse shaver ON/OFF switching High : OFF Low : ON
Chip enable signal output
GND
2
3
V
CC1
V
CC2
4
TC
5
6
7
8
RE
PS
CONT
CE
GND
Package
DIP-8B (PST620DDB, PST621DDB)
SOP-8C (PST620DFT, PST621DFT)
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| PST7019 | System Reset Monolithic IC PST70XX Series |
| PST7020 | System Reset Monolithic IC PST70XX Series |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| PST623 | 制造商:MITSUMI 制造商全稱:Mitsumi Electronics, Corp. 功能描述:System Reset |
| PST623XS | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Voltage Detector |
| PST623XW | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Voltage Detector |
| PST-7 | 制造商:Panduit Corp 功能描述: |
| PST-7-01 | 功能描述:PUSH SPACER TEARDROP NAT 7/16" RoHS:是 類別:硬件，緊固件，配件 >> 電路板支座 系列:PST 標準包裝:1,000 系列:REHCBS 保持類型:卡入式鎖定 長度:1.590"（40.39mm） 板間高度:1.250"（31.75mm）1 1/4" 安裝類型:鉚釘 材質:尼龍 支撐孔直徑:0.158"（4.00mm） 支撐面板厚度:0.070"（1.78mm） 安裝孔直徑:0.187"（4.75mm）3/16" 安裝面板厚度:0.047 ~ 0.105"（1.20 ~ 2.67mm） 其它名稱:61063012REHCBS2001 |
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