參數(shù)資料
型號(hào)： CAT1321UI-25TDFN
英文描述： SCREWDRIVER, POZI TRITON ESD NO.1SCREWDRIVER, POZI TRITON ESD NO.1; Tip type:Pozidriv; Length, blade:80mm; Driver type:Posidriv No1; Handle type:Static diss.; Tip Size:No.1
中文描述： 監(jiān)控電路，帶有I2C串行EEPROM中的CMOS 32K的
文件頁(yè)數(shù)： 1/18頁(yè)
文件大?。?/td> 496K
代理商： CAT1321UI-25TDFN
1
CAT1320, CAT1321
Supervisory Circuits with I
2
C Serial 32K CMOS EEPROM
2005 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
Doc. No. 20585, Rev. 00
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FEATURES
I
Precision power supply voltage monitor
— 5V, 3.3V and 3V systems
- +5.0V (+/- 5%, +/- 10%)
- +3.3V (+/- 5%, +/- 10%)
- +3.0V (+/- 10%)
I
Active low reset, CAT1320
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Active high reset, CAT1321
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Valid reset guaranteed at V
CC
=1V
I
400kHz I
2
C bus
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3.0V to 5.5V operation
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Low power CMOS technology
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64-Byte page write buffer
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1,000,000 Program/Erase cycles
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100 year data retention
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8-pin DIP, SOIC, TSSOP and TDFN packages
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Industrial temperature range
PIN CONFIGURATION
PDIP (P, L) SOIC (J, W)
DESCRIPTION
The CAT1320 and CAT1321 are complete memory and
supervisory solutions for microcontroller-based systems.
A 32kbit serial EEPROM memory and a system power
supervisor with brown-out protection are integrated
together in low power CMOS technology. Memory
interface is via a 400kHz I
2
C bus.
The CAT1320 provides a precision V
CC
sense circuit
and drives an open drain output,
RESET
low whenever
V
CC
falls below the reset threshold voltage.
The CAT1321 provides a precision VCC sense circuit
that drives an open drain output, RESET high whenever
V
CC
falls below the reset threshold voltage.
The power supply monitor and reset circuit protect
memory and system controllers during power up/down
and against brownout conditions. Five reset threshold
voltages support 5V, 3.3V and 3V systems. If power
supply voltages are out of tolerance reset signals become
active, preventing the system microcontroller, ASIC or
peripherals from operating. Reset signals become inactive
typically 200 ms after the supply voltage exceeds the reset
threshold level. With both active high and low reset options,
interface to microcontrollers and other ICs is simple. In
addition, the
RESET
(CAT1320) pin can be used as an
input for push-button manual reset capability.
The CAT1320/21 memory features a 64-byte page. In
addition, hardware data protection is provided by a V
CC
sense circuit that prevents writes to memory whenever V
CC
falls below the reset threshold or until V
CC
reaches the reset
threshold during power up.
Available packages include an 8-pin DIP, SOIC, TSSOP
and 4.9 x 3mm TDFN.
TDFN PACKAGE: 4.9MM X 3MM
(RD2, ZD2)
TSSOP (U, Y)
A0
A1
VCC
RESET
SCL
SDA
A2
VSS
CAT1320
1
2
3
4
8
7
6
5
VCC
RESET
SCL
SDA
CAT1321
1
2
3
4
8
6
5
A0
A1
A2
VSS
A0
A1
VCC
RESET
SCL
SDA
A2
VSS
CAT1320
1
2
3
4
8
7
6
5
CAT1321
1
2
3
4
8
7
6
5
VCC
RESET
SCL
SDA
A0
A1
A2
VSS
1
2
3
4
8
7
6
5
VCC
RESET
SCL
SDA
CAT1320
A0
A1
A2
VSS
VCC
RESET
SCL
SDA
CAT1321
A0
A1
A2
VSS
1
2
3
4
8
7
6
5
相關(guān)PDF資料
PDF描述
CAT1321UI-25TE13 SCREWDRIVER, SLOT TRITON ESD 100SCREWDRIVER, SLOT TRITON ESD 100; Tip Size A x B:3 x 0.5mm; Tip size:3mm; Length, blade:100mm; Length, Inches:4"; Handle type:Static diss.; Tip Size:3 mm; Tip type:Parallel Slot
CAT1321WI-25SOIC Supervisory Circuits with I2C Serial 32K CMOS EEPROM
CAT1321WI-25TDFN Supervisory Circuits with I2C Serial 32K CMOS EEPROM
CAT1321WI-25TE13 Supervisory Circuits with I2C Serial 32K CMOS EEPROM
CAT1321WI-25TSSOP Supervisory Circuits with I2C Serial 32K CMOS EEPROM
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
CAT1321WI-28 功能描述:監(jiān)控電路 2.8V w/32K EEPROM RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過(guò)電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開(kāi)關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel
CAT1321WI-42 功能描述:監(jiān)控電路 4.2V w/32K EEPROM RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過(guò)電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開(kāi)關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel
CAT140021LWI-G 功能描述:監(jiān)控電路 w/2k I2C RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過(guò)電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開(kāi)關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel
CAT140021LWI-GT3 功能描述:監(jiān)控電路 w/2k I2C RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過(guò)電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開(kāi)關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel
CAT140021SWGI 制造商:Catalyst Semiconductor 功能描述:
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