CAT1025: EEPROM Serial 2-Kb CPU Supervisor
内容: The CAT1025 is a complete memory and supervisory s...
The CAT1025 is a complete memory and supervisory solution for microcontroller-based systems. A EEPROM Serial 2-Kb CPU Supervisor and a system power supervisor with brown-out protection are integrated together in low power CMOS technology. Memory interface is via a 400 kHz I²C bus.
The CAT1025 provides a precision VCC sense circuit and two open drain outputs: one (RESET) drives high and the other (RESET) drives low whenever VCC falls below the reset threshold voltage. The CAT1025 also has a Write Protect input (WP). Write operations are disabled if WP is connected to a logic high.
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 5.0 V, 3.3 V and 3.0 V 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 signals, interface to microcontrollers and other ICs is simple. In addition, the RESET pin or a separate input, MR, can be used as an input for push-button manual reset capability.
The CAT1025 memory features a 16-byte page. In addition, hardware data protection is provided by a VCC sense circuit that prevents writes to memory whenever VCC falls below the reset threshold or until VCC reaches the reset threshold during power up.
Available packages include an 8-pin DIP, 8-pin SOIC, 8-pin TSSOP, 8-pin TDFN and 8-pin MSOP. The TDFN package thickness is 0.8 mm maximum. TDFN footprint is 3 x 3 mm.
特長
Precision power supply voltage supervisor
5.0 V, 3.3 V and 3.0 V systems
Five threshold voltage options
Active high or low reset
— Valid reset guaranteed at VCC = 1V
400 kHz I²C bus
3.0 V to 5.5 V operation
Low power CMOS technology
16-Byte page write buffer
Built-in inadvertent write protection
— WP pin
1,000,000 Program/Erase cycles
Manual reset input
100 year data retention
8-pin DIP, SOIC, TSSOP, MSOP &
TDFN (3x3mm foot print) packages
Industrial and extended temperature ranges
アプリケーション
Industrial control
Medical systems
Printers
Mass storage
供給状況 & サンプル
CAT1025WI-25-GT3
状態: Active
Compliance: Pb-free Halide free
内容: EEPROM Serial 2-Kb CPU Supervisor
外形 タイプ: SOIC-8
外形 Case Outline: 751BD
MSL: 1
梱包形態 タイプ: REEL
梱包形態 数量: 3000
在庫
Market Leadtime (weeks):2 to 4
Arrow:0
Digikey:>1K
ON Semiconductor:7,238
CAT1025WI-28-GT3
状態: Active
Compliance: Pb-free Halide free
内容: EEPROM Serial 2-Kb CPU Supervisor
外形 タイプ: SOIC-8
外形 Case Outline: 751BD
MSL: 1
梱包形態 タイプ: REEL
梱包形態 数量: 3000
在庫
Market Leadtime (weeks):2 to 4
Arrow:0
ON Semiconductor:12,000
PandS:>1K
CAT1025WI-30-GT3
状態: Active
Compliance: Pb-free Halide free
内容: EEPROM Serial 2-Kb CPU Supervisor
外形 タイプ: SOIC-8
外形 Case Outline: 751BD
MSL: 1
梱包形態 タイプ: REEL
梱包形態 数量: 3000
在庫
Market Leadtime (weeks):17 to 20
Arrow:0
Digikey:>1K
FutureElectronics:>1K
Newark:<1K
PandS:>1K
CAT1025WI-42-GT3
状態: Active
Compliance: Pb-free Halide free
内容: EEPROM Serial 2-Kb CPU Supervisor
外形 タイプ: SOIC-8
外形 Case Outline: 751BD
MSL: 1
梱包形態 タイプ: REEL
梱包形態 数量: 3000
在庫
Market Leadtime (weeks):2 to 4
Arrow:0
ON Semiconductor:6,000
CAT1025WI-45-GT3
状態: Active
Compliance: Pb-free Halide free
内容: EEPROM Serial 2-Kb CPU Supervisor
外形 タイプ: SOIC-8
外形 Case Outline: 751BD
MSL: 1
梱包形態 タイプ: REEL
梱包形態 数量: 3000
CAT1025YI-25-GT3
状態: Active
Compliance: Pb-free Halide free
内容: EEPROM Serial 2-Kb CPU Supervisor
外形 タイプ: TSSOP-8
外形 Case Outline: 948AL
MSL: 1
梱包形態 タイプ: REEL
梱包形態 数量: 3000
CAT1025YI-28-GT3
状態: Active
Compliance: Pb-free Halide free
内容: EEPROM Serial 2-Kb CPU Supervisor
外形 タイプ: TSSOP-8
外形 Case Outline: 948AL
MSL: 1
梱包形態 タイプ: REEL
梱包形態 数量: 3000
CAT1025YI-30-GT3
状態: Active
Compliance: Pb-free Halide free
内容: EEPROM Serial 2-Kb CPU Supervisor
外形 タイプ: TSSOP-8
外形 Case Outline: 948AL
MSL: 1
梱包形態 タイプ: REEL
梱包形態 数量: 3000
CAT1025YI-42-GT3
状態: Active
Compliance: Pb-free Halide free
内容: EEPROM Serial 2-Kb CPU Supervisor
外形 タイプ: TSSOP-8
外形 Case Outline: 948AL
MSL: 1
梱包形態 タイプ: REEL
梱包形態 数量: 3000
CAT1025YI-45-GT3
状態: Active
Compliance: Pb-free Halide free
内容: EEPROM Serial 2-Kb CPU Supervisor
外形 タイプ: TSSOP-8
外形 Case Outline: 948AL
MSL: 1
梱包形態 タイプ: REEL
梱包形態 数量: 3000
Specifications
Type:
Serial 
Density:
2 kb 
Organization:
256 x 8 
Data Transmission Standard:
I2C 
fcycle Max (kHz):
400 
tACC Max ns:
900 
VCC Min (V):
2.7 
VCC Max (V):
5.5 
Istandby Max (µA):
40 
Iact Max (mA):
3 
T Min (°C):
-40 
T Max (°C):
85 
Package Type:
SOIC-8 
TSSOP-8