X5328

CPU Supervisor with 32Kbit SPI EEPROM

Product Status: Mass Production

OVERVIEW

These devices combine three popular functions, Poweron Reset Control, Supply Voltage Supervision, and Block Lock Protect Serial EEPROM Memory in one package. This combination lowers system cost, reduces board space requirements, and increases reliability.

Applying power to the device activates the power-on reset circuit which holds RESET /RESET active for a period of time. This allows the power supply and oscillator to stabilize before the processor can execute code.

The Device's low VCC detection circuitry protects the user's system from low voltage conditions by holding RESET /RESET active when VCC falls below a minimum VCC trip point. RESET /RESET remains asserted until VCC returns to proper operating level and stabilizes. Five industry standard VTRIP thresholds are available, however, Intersil's unique circuits allow the threshold to be reprogrammed to meet custom requirements or to fine-tune the threshold in applications requiring higher precision.

KEY FEATURES

  • Low VCC detection and reset assertion
  • Five standard reset threshold voltages
  • Re-program low VCC reset threshold voltage using special programming sequence
  • Reset signal valid to VCC = 1V
  • Long battery life with low power consumption
  • <1µA max standby current
  • <400µA max active current during read
  • 32Kbits of EEPROM
  • Built-in inadvertent write protection
  • Power-up/power-down protection circuitry
  • Protect 0, 1/4, 1/2 or all of EEPROM array with Block Lock™ protection
  • In circuit programmable ROM mode
  • 2MHz SPI interface modes (0,0 & 1,1)
  • Minimize EEPROM programming time
  • 32-byte page write mode
  • Self-timed write cycle
  • 5ms write cycle time (typical)
  • 2.7V to 5.5V and 4.5V to 5.5V power supply operation
  • Available packages
  • 14 Ld TSSOP, 8 Ld SOIC, 8 Ld PDIP
  • Pb-free plus anneal available (RoHS compliant)

PARAMETRICS

Parameters
X5328
Basic Information
生产状态
Mass Production
供电电压Vs范围 (V)
4.5 to 5.5, 4.5 to 5.5, 2.7 to 5.5, 2.7 to 5.5
电压阈值1 (V)
4.63 (2.8%), 4.38 (2.7%), 2.93 (2.7%), 2.63 (3%)
复位输出类型
Active Low
看门狗定时器
No
手动复位
No
总线/输出接口
SPI
EEPROM大小
32 KBits
电池监控和切换
No
故障检测寄存器
No
后缀
-4.5A, Blank, -2.7A, -2.7
POR (ms)
200
RTC功能
No
特性
Replaces X25328
资质级别
Standard
温度范围
-40 to +85

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