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9.2.4.
Functional Descriptions
The 24C32A supports a Bi-directional 2-wire bus and data transmission protocol. A device that sends
data onto the bus is defined as transmitter, and a device receiving data as receiver. The bus must be
controlled by a master device which generates the Serial Clock (SCL), controls the bus access, and
generates the START and STOP conditions, while the 24C32A works as slave. Both master and slave
can operate as transmitter or receiver but the master device determines which mode is activated.
LM317
9.3.
9.3.1.
General Description
The LM117/LM217/LM317 are monolithic integrated circuit in TO-220, ISOWATT220, TO-3 and D
PAK packages intended for use as positive adjustable voltage regulators.
They are designed to supply more than 1.5A of load current with an output voltage adjustable over a
1.2 to 37V range.
The nominal output voltage is selected by means of only a resistive divider, making the device
exceptionally easy to use and eliminating the stocking of many fixed regulators.
9.3.2.
Features
• Output voltage range: 1.2 to 37V
• Output current In excess of 1.5A
• 0.1% Line and Load Regulation
• Floating Operation for High Voltages
• Complete Series of Protections: Current Limiting, Thermal Shutdown And Soa Control
ST24LC21
9.4.
9.4.1. Description
The ST24LC21 is a 1K bit electrically erasable programmable memory (EEPROM), organized by 8 bits.
This device can operate in two modes: Transmit Only mode and I
the device is in Transmit Only mode with EEPROM data clocked out from the rising edge of the signal
applied on VCLK. The device will switch to the I
applied on SCL pin. The ST24LC21 can not switch from the I
mode (except when the power supply is removed). The device operates with a power supply value as
low as 2.5V. Both Plastic Dual-in-Line and Plastic Small Outline packages are available.
9.4.2. Features
• 1 million Erase/Write cycles
• 40 years data retention
• 2.5V To 5.5V single supply voltage
• 400k Hz compatibility over the full range of supply voltage
• Two wire serial interface I
• Page Write (Up To 8 Bytes)
• Byte, random and sequential read modes
• Self timed programming cycle
• Automatic address incrementing
• Enhanced ESD/Latch up
• Performances
Plasma TV Service Manual
C bidirectional mode upon the falling edge of the signal
2
C bus compatible
2
C bidirectional mode. When powered,
2
C bidirectional mode to the Transmit Only
2
5
2
11/01/2005
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