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Device Summary Description Complete Data Sheet
X9440 Dual smart comparators with SPI interface PDF
X9448 Dual smart comparators with 2-wire interface PDF


Device Summary Description Complete Data Sheet
X9015 Digitally-Controlled 32 Tap Trim Potentiometer PDF
X9116 Digitally-Controlled 16 Tap Trim Potentiometer PDF
X9250 Quad, 256 Tap, Non-Volatile Digital Potentiometer PDF
X9258 Quad, 256 Tap, Non-Volatile Digital Potentiometer with serial port that
utilizes a 2-wire protocol PDF
X9C102/103/
104/503
Series 100 taps, 1K, 10K, 50K, 100K Ohms, ±5V, 3 wire PDF
X9C303 100 taps, 32K Ohms, ±5V, 3 wire, log taper PDF
X9312 100 taps, 10K Ohms, +15V, 3 wire PDF
X9313 32 taps, 10K Ohms, ±5V, 3 wire PDF
X9315 32 taps, 10K Ohms, +2.7V, 3 wire, low power PDF
X9317 100 taps, 10K Ohms, +2.7V, 3 wire, low power PDF
X9221 dual 64 taps, 10K Ohms, ±5V, 2 wire PDF
X9241 quad 64 taps, 10K Ohms, ±5V, 2 wire PDF
X9400 quad 64 taps, 10K Ohms, ±2.7V, SPI PDF
X9401 quad – 4 separate potentiometers PDF
X9408 quad 64 taps, 10K Ohms, ±2.7V, 2-wire PDF
X9409 quad – 4 separate potentiometers PDF
X9410 dual 64 taps, 10K Ohms, ±2.7V, SPI PDF
X9418 dual 64 taps, 10K Ohms, ±2.7V, 2 wire PDF
X9428 XDCP Digitally Controlled Potentiometer PDF
X9511 32 taps, 10K Ohms, ±5V, PushPOT? PDF


Device Description Complete Data Sheet
X1203 Real time clock with alarms, low voltage sense reset. Operates down to
1.8V PDF
X1243 Real time clock with alarms, low voltage sense reset and 16K EEPROM PDF


*Recommended for new design
Device Summary Description Complete Data Sheet
XK4000 XK4000 Development System PDF
X4003/05 CPU Supervisor PDF
X4003/05
Errata Known operational differences between initial X4003/5 samples and the
data sheet. PDF
X4043/45 CPU Supervisor with 4Kb EEPROM PDF
X4043/45
Errata Known operational differences between initial X4043/45 samples and the
data sheet. PDF
X4C105* CPU Supervisor with I2C port, 4 bits NOVRAM and 4 bit nonvolatile
output port, Low voltage sense, EEPROM
PDF
X5083* Voltage Supervisor with Selectable Watchdog Timer Adjustable VCC
Sense, Reset LOW, SPI EEPROM
PDF
XK5000 The XK5000 is used to program and measure the VTRIP voltages of
Xicor's X5000 series CPU supervisors. PDF
X5001* CPU Supervisor with Power-on reset, with Adjustable Low Voltage Reset,
Selectable watchdog timer, Reset LOW
PDF
X5163* CPU Supervisor with Power-on reset, with Selectable Watchdog Timer
Adjustable Low Voltage Reset, Reset LOW, 16KB SPI EEPROM
PDF
X51638* CPU Supervisor with 800ms Power-on reset, with Selectable Watchdog
Timer Adjustable Low Voltage Reset, Reset LOW, 16KB SPI EEPROM
PDF
X5165* CPU Supervisor with Power-on reset, with Selectable Watchdog Timer
Adjustable Low Voltage Reset, Reset HIGH, 16KB SPI EEPROM PDF
X5168* CPU Supervisor with Power-on reset, with Adjustable Low Voltage Reset,
Reset LOW, 16KB SPI EEPROM PDF
X5169* CPU Supervisor with Power-on reset, with Adjustable Low Voltage Reset,
Reset HIGH, 16KB SPI EEPROM
PDF
X5323* CPU Supervisor with Power-on reset, with Selectable Watchdog Timer,
Adjustable Low Voltage Reset, Reset LOW, 32KB SPI EEPROM
PDF
X5325* CPU Supervisor with Power-on reset, with Selectable Watchdog Timer,
Adjustable Low Voltage Reset, Reset HIGH, 32KB SPI EEPROM
PDF
X5328* CPU Supervisor with Power-on reset, with Adjustable Low Voltage Reset,
Reset LOW, 32KB SPI EEPROM
PDF
X5329* CPU Supervisor with Power-on reset, with Adjustable Low Voltage Reset,
Reset HIGH, 32KB SPI EEPROM
PDF
X5643* CPU Supervisor with Power-on reset, with Selectable Watchdog Timer,
Adjustable Low Voltage Reset, Reset LOW, 64KB SPI EEPROM
PDF
X5645* CPU Supervisor with Power-on reset, with Selectable Watchdog Timer,
Adjustable Low Voltage Reset, Reset HIGH, 64KB SPI EEPROM
PDF
X5648* CPU Supervisor with Power-on reset, with Adjustable Low Voltage Reset,
Reset LOW, 64KB SPI EEPROM
PDF
X5649* CPU Supervisor with Power-on reset, with Adjustable Low Voltage Reset,
Reset HIGH, 64KB SPI EEPROM
PDF
X5043* Programmable watchdog timer, Vcc supervisor & 4K bits SPI EEPROM with
Block Lock?, reset active LOW PDF
X5045* Programmable watchdog timer, Vcc supervisor & 4K bits SPI EEPROM with
Block Lock?, reset active HIGH PDF
X25043* Programmable watchdog timer, Vcc supervisor & 4K bits SPI EEPROM with
Block Lock?, reset active LOW PDF
X25045* Programmable watchdog timer, Vcc supervisor & 4K bits SPI EEPROM with
Block Lock?, reset active HIGH PDF
X25163 Programmable watchdog timer, Vcc supervisor & 16K bits SPI EEPROM with
Block Lock?, reset active LOW PDF
X25165 Programmable watchdog timer, Vcc supervisor & 16K bits SPI EEPROM with
Block Lock?, reset active HIGH PDF
X25168 Vcc supervisory Circuit & 16K bits SPI EEPROM with Block Lock?, reset
active LOW PDF
X25169 Vcc supervisory Circuit & 16K bits SPI EEPROM with Block Lock?, reset
active HIGH PDF
X25323 Programmable watchdog timer, Vcc supervisor & 32K bits SPI EEPROM with
Block Lock?, reset active LOW PDF
X25325 Programmable watchdog timer, Vcc supervisor & 32K bits SPI EEPROM with
Block Lock?, reset active HIGH PDF
X25328 Vcc supervisory Circuit & 32K bits SPI EEPROM with Block Lock?, reset
active LOW PDF
X25329 Vcc supervisory Circuit & 32K bits SPI EEPROM with Block Lock?, reset
active HIGH PDF
X25383 8K bits, 5MHz, 16 byte page mode, IDLock?, Programmable watchdog
timer, Vcc supervisor, reset active LOW PDF
X25643 Programmable watchdog timer, Vcc supervisor & 64K bits SPI EEPROM with
Block Lock?, reset active LOW PDF
X25645 Programmable watchdog timer, Vcc supervisor & 64K bits SPI EEPROM with
Block Lock?, reset active HIGH PDF
X25648 Vcc supervisory Circuit & 64K bits SPI EEPROM with Block Lock?, reset
active LOW PDF
X25649 Vcc supervisory Circuit & 64K bits SPI EEPROM with Block Lock?, reset
active HIGH PDF

Device Summary Description Complete Data Sheet
X76F041 Secure SerialFlash with password protect, and IIC interface PDF
X76F102 Secure SerialFlash, 896 bits PDF
X76F200 Secure SerialFlash, 2K PDF
X76F400 Secure SerialFlash, 4K PDF
X76F641 Secure SerialFlash (64K) with password protect, and ISO 7816 pinout
PDF


Device Summary Description Complete Data Sheet
X28C64 64K bits, 64 byte page mode, SDP PDF
X28HC64 64K bits, 64 byte page mode, SDP PDF
X28C256 5 Volt, Byte Alterable E2PROM PDF
X28HC256 5 Volt, Byte Alterable E2PROM PDF
X28VC256 256K bits, 128 byte page mode, SDP, 45ns PDF
X28C512/513 512K bits, 128 byte page mode, SDP, 90ns PDF
X28C010 1024K bits, 256 byte page mode, SDP, 120ns PDF
XM28C010P 1024K bits, E2PROM module, 70ns PDF
XM28C020P 2048K bits organized 64K x 32, E2PROM module, 120ns PDF
XM28C040 4096K bits, E2PROM module, 200ns PDF


Device Summary Description Complete Data Sheet
Two Wire Interface
X24C00 128 bits PDF
X24C01 1K bits, 4 byte page mode PDF
X24C02 2K bits, 4 byte page mode PDF
X24C04 4K bits, 16 byte page mode PDF
X24C08 8K bits, 16 byte page mode PDF
X24C16 16K bits, 16 byte page mode PDF
X24129 16K bits, 32 byte page mode, Block Lock? PDF
X24164 16K bits, 16 byte page mode PDF
X24165 16K bits, 32 byte page mode, Block Lock? PDF
X24645 64K bits, 32 byte page mode, Block Lock? PDF
SPI Interface
X25C02 2K bits, 1MHz, 4 byte page mode PDF
X25020 2K bits, 1MHz, 4 byte page mode, Block Lock? PDF
X25040 4K bits, 1MHz, 4 byte page mode, Block Lock? PDF
X25057 4K bits, 5MHz, 16 byte page mode, IDLock? PDF
X25097 8K bits, 5MHz, 16 byte page mode, IDLock? PDF
X25138 128K bits, 5MHz, 32 byte page mode, Block Lock? PDF
X25170 16K bits, 5MHz, 32 byte page mode, Block Lock? PDF
X25320 32K bits, 2MHz, 32 byte page mode, Block Lock? PDF
X25330 32K bits, 5MHz, 32 byte page mode, Block Lock? PDF
X25650 64K bits, 5MHz, 32 byte page mode, Block Lock? PDF
MPS
X84041 4K bits, 3.3 MHz, I/O port saver PDF
X84161 16K bits, 10MHz, I/O port saver PDF
X84641 64K bits, 10MHz, I/O port saver PDF
X84129 128K bits, 10MHz, I/O port saver PDF


Device Description
X20C04 4K bits, 150ns PDF
X20C16 16K bits, AUTOSTORE?, 35ns PDF
X22C10 256 bits, nibble-wide, 1 million cycles, 120ns PDF
X22C12 1K bits, nibble-wide, 1 million cycles, 150ns PDF


Device Description
X24C44 256 bits, word-wide, COPS? and 8051 compatible PDF
X24C45 256 bits, word-wide, AUTOSTORE?, COPS? and 8051 compatible PDF


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X5045: SPI serial EEPROM with programmable watchdog timer

Features

? 4096 bits organized as 512 x 8
? Programmable watchdog timer (disabled, 200ms, 600ms, 1400ms)
? Low Vcc detection (valid to VCC = 1V)
? SPI Interface 3-wire interface (SI, SO, and SCK)
? SCK frequencies up to 1MHz
? SPI serial port compatible (0,0 and 1,1)
? Low Vcc versions available
? Low power CMOS (<10μA standby current, <3mA active current)
? 4 byte page mode write operation
? RESET output pin signals watchdog timer or Vcc violations
? Hardware write protect input (/WP)
? Block Lock? and software write protection
? Typical self-timed nonvolatile write cycle time of 5ms
? 100,000 endurance cycles per byte
? 100+ years data retention
? RESET pin polarity is opposite of X5043
? 8 pin DIP, 8-lead SOIC, or 14-lead TSSOP packages
Description

The X5045 is a 4096-bit CMOS serial EEPROM organized as 512 x 8. It features
an interface and software protocol designed to require only a 3-wire bus and
a chip select (/CS), allowing any number of devices to share the same bus.
The interface consists
of serial data input, serial data output, and serial clock input pins. The
device can be written, up to 4 bytes at a time, with random address read or
write modes and allows sequential reads of unlimited length. There is an
additional write protect
input (/WP) that can be actively driven or tied to a fixed voltage. This pin
disables all nonvolatile writes to the device when it is LOW. The X5045 also
contains a nonvolatile Write Enable Latch bit (WEL) that must be set prior to
each attempt to write
to either array, providing extra data protection to both arrays.

The X5045 contains a nonvolatile status register (SR) that can be both
written to and read from and which allows for control of several advanced
features. The WEL bit, Write In Progress bit (WIP), 2 Watchdog Timer bits
(WD0 and WD1), and 2 Block Lock?
Protection bits (BL0 and BL1) are accessible in the SR, allowing for varying
levels of data protection and control. Using Block Lock?, the system can be
partitioned to only allow nonvolatile writes to 0%, 25%, 50%, or 100% of the
total EEPROM array.
Polling of the WIP bit will indicate the early completion of a nonvolatile
write cycle.

The X5045 also has a concurrent programmable watchdog timer and voltage
supervisor function. If /CS isn't toggling from LOW to HIGH or HIGH to LOW
within the watchdog timer interval, RESET will be asserted. Additionally, the
Vcc sense circuitry will
also assert RESET if Vcc falls below the programmed trip point. This
effectively provides the functionality of 3 chips (serial EEPROM, watchdog
timer, and voltage supervisor) in a single X5045.

This device is available in 8-pin DIP, 8-lead SOIC, or 14-lead TSSOP packages
with Vcc ranges from 2.7V to 5.5V. It is also available in commercial,
industrial, or military temperature grades.