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| Innovative 16-bit Input/Output Expanders from Microchip Technology | | | |
CHANDLER, Ariz - Microchip Technology Inc., today introduced two 16-bit input/output (I/O)
expanders. The MCP23017 is the only 16-bit I/O expander that supports standard (100 kHz), fast (400 kHz) and
high-speed (up to 1.7 MHz) I2C™ communications. The MCP23S17 features SPI™ clock speeds up to 10 MHz for higher
throughput applications.
These unique solutions make it easy and cost effective for designers to upgrade or
enhance their current microcontroller-based systems that require additional I/O. The MCP23017 and MCP23S17 provide
system I/O expansion via existing microcontroller serial ports, saving development time and cost by eliminating the
need to redesign the complete system with a higher I/O microcontroller. The devices can support a broad range of
applications with low- and high-bandwidth requirements. Hardware-address pins allow cascading of multiple devices in
one system--up to 128 bits of I/O can be added to existing systems, providing ample design flexibility.
The MCP23017 and MCP23S17 operate down to 1.8 volts and have a standby mode where current consumption is less
than 2 microamps. Separate interrupt outputs for each bank of 8 I/O ports can be utilized for system partitioning.
Pins can drive standard LEDs directly (25 milliamps sink/source capability per I/O). These devices complement the
Company's existing 8-bit MCP23008 and MCP23S08 I/O expanders.
Samples and volume production are
available today. Packaging is lead (Pb)-free, including 28-pin PDIP, SOIC, SSOP and 6x6 millimeter QFN options. The
MCP23017 is priced at $0.86 each in 1,000-unit quantities for the 28-pin PDIP. The MCP23S17 is priced at $0.91 each
in 1,000-unit quantities for the 28-pin PDIP. See Microchip's Web site for complete details, or contact any
Microchip sales representative or authorized Microchip distributor around the world.
Microchip
Technology Inc. (NASDAQ: MCHP) is a leading provider of microcontroller and analog semiconductors, providing
low-risk product development, lower total system cost and faster time to market for thousands of diverse customer
applications worldwide. Headquartered in Chandler, Ariz., Microchip offers outstanding technical support along with
dependable delivery and quality. |
Jueves, 30 Junio, 2005 - 07:55 | |
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La Física es como el sexo: seguro que da alguna compensación práctica, pero no es por eso por lo que la hacemos.
Richard Feynman (1918-1988)
Físico estadounidense, premio Nobel de Física en 1965 |
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