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X5328V14Z Datasheet(PDF) 1 Page - Intersil Corporation

Part # X5328V14Z
Description  CPU Supervisor with 32Kbit SPI EEPROM
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Manufacturer  INTERSIL [Intersil Corporation]
Direct Link  http://www.intersil.com/cda/home
Logo INTERSIL - Intersil Corporation

X5328V14Z Datasheet(HTML) 1 Page - Intersil Corporation

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1
®
FN8132.1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
| Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2005. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
X5328, X5329
(Replaces X25328, X25329)
CPU Supervisor with 32Kbit SPI EEPROM
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 Lockprotection
—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)
DESCRIPTION
These devices combine three popular functions, Power-
on 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 oscilla-
tor 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 mini-
mum VCC trip point. RESET/RESET remains asserted
until VCC returns to proper operating level and stabi-
lizes. 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 applica-
tions requiring higher precision.
BLOCK DIAGRAM
Data
Register
Command
Decode &
Control
Logic
SI
SO
SCK
CS
VCC
Reset
Timebase
Power-on and
Generation
VTRIP
+
-
RESET/RESET
Reset
Low Voltage
Status
Register
Protect Logic
8Kbits
8Kbits
16Kbits
WP
X5328 = RESET
X5329 = RESET
Data Sheet
October 17, 2005


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