DESCRIPTION
The MC34063A by Analog Integrations Corporation, an improved second source over the
industrial standard MC34063A, is a monolithic control circuit containing the primary functions
required for DC/DC converters.
The device consists of an internal temperature compensated reference, comparator, controlled duty cycle oscillator with an active current limit circuit, driver and high current output switch.
This device is specifically designed to be incorporated in stepdown, step-up and voltage-inverting applications with a minimum number of external components.
The ±1.8% internal reference and low quiescent current of 1.6mA are among the improvements of the device over the competition.

FEATURES
*3V to 30V Input Voltage Operation.
*Internal 1.6A Peak Current Switch.
*Internal ±1.8% Reference.
*Low Quiescent Current at 1.6mA.
*Frequency Operation from 100Hz to 100KHz.
*Current Limiting.

APPLICATIONS
*Saver for Cellular phones
*DC-DC Converter Module

MC34063ACN
MC34063ACS

 

MC34063A-DC/DC CONVERTER CONTROL CIRCUIT

GENERAL DESCRIPTION
The AD7804/AD7808 are quad/octal 10-bit digital-to-analog converters, with serial load capabilities, while the AD7805/AD7809 are quad/octal 10-bit digital-to-analog converters with parallel load capabilities.
These parts operate from a +3.3 V to +5 V (±10%) power supply and incorporates an on-chip reference.
These DACs provide output signals in the form of VBIAS ± VSWING.
VSWING is derived internally from VBIAS. On-chip control registers include a system control register and channel control registers.
The system control register has control over all DACs in the package.
The channel control registers allow individual control of DACs.
The complete transfer function of each individual DAC can be shifted around the VBIAS point using an on-chip Sub DAC.
All DACs contain double buffered data inputs, which allow all analog outputs to be simultaneously updated using the asynchronous LDAC input.

FEATURES
Four 10-Bit DACs in One Package
Serial and Parallel Loading Facilities Available
AD7804 Quad 10-Bit Serial Loading
AD7805 Quad 10-Bit Parallel Loading
AD7808 Octal 10-Bit Serial Loading
AD7809 Octal 10-Bit Parallel Loading
+3.3 V to +5 V Operation
Power-Down Mode
Power-On Reset
Standby Mode (All DACs/Individual DACs)
Low Power All CMOS Construction
10-Bit Resolution
Double Buffered DAC Registers
Dual External Reference Capability
APPLICATIONS
Optical Disk Drives
Instrumentation and Communication Systems
Process Control and Voltage Setpoint Control
Trim Potentiometer Replacement
Automatic Calibration

AD7804BN
AD7804BR
 

AD7804-+3.3 V to +5 V Quad/Octal 10-Bit DACs

General Description
The AM93LC66 is the 4096-bit non-volatile serial EEPROM.
It is manufactured by using ATC's advanced CMOS EEPROM technology.
The AM93LC66 provides efficient non-volatile read/write memory arranged as 256 words of 16 bits each when the ORG Pin is connected to VCC and 512 words of 8 bits each when it is tied to ground.
The instruction set includes read, write, and write enable/disable functions.
The data out pin (DO) indicates the status of the device during the self-timed non-volatile programming cycle.
The self-timed write cycle includes an automatic erase-before-write capability.
Only when the chip is in the WRITE ENABLE state and proper VCC operation range is the WRITE instruction accepted and thus to protect against inadvertent writes.
 Data is written in 16 bits per write instruction into the selected register.
 If Chip Select (CS) is brought HIGH after initiation of the write cycle, the Data Output (DO) pin will indicate the READY/BUSY status of the chip.
The AM93LC66 is available in space-saving 8-lead PDIP, 8-lead SOP and rotated 8-lead SOP package.

Features
*State-of-the-art architecture
-Non-volatile data storage
-Standard voltage and low voltage operation
Vcc: 2.7V ~ 5.5V
-Full TTL compatible inputs and outputs
-Auto increment read for efficient data dump
*Hardware and software write protection
-Defaults to write-disabled state at power up
-Software instructions for write-enable/disable
-VCC level verification before self-timed
programming cycle
*Advanced low voltage CMOS EEPROM
technology
*Versatile, easy-to-use interface
-Self-timed programming cycle
-Automatic erase-before-write
-Programming status indicator
-Word and chip erasable
-Stop SK anytime for power savings
*Durability and reliability
-40 years data retention
-Minimum of 1M write cycles per word
-Unlimited read cycles
-ESD protection

AM93LC66
AM93LC66I
AM93LC66V

 

AM93LC66-4096-bits Serial Electrically Erasable PROM