These flexible I/O controllers are optimised, Microchip says, for industrial and embedded computing designs, in smaller packages and with long product lifecycles: they are available in both commercial and industrial operating temperature versions.
Each product in the SCH322X Super I/O family contains a different feature set, combining serial ports, parallel port, and PS/2 with flexible General Purpose Input/Output (GPIO) capability and fully-specified temperature and voltage monitoring, which enables the design of more cost-effective industrial applications. This SCH322X product family comes in area-efficient BGA packages.
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Designed to operate with the x86 architecture, the SCH322X family comprises six devices with varying numbers of serial ports, combined with hardware monitoring, and with and without keyboard controller functionality; SCH3221, SCH3222, SCH3223, SCH3224, SCH3226 and SCH3227. Numbers of GPIOs across the family ranges from 19 to 40; and all device except SCH3221 have a 32-byte security key register. Supporting legacy PC functions within an industrial environment, the SCH3227 (as an example) is a 3.3V Super I/O Controller with an LPC interface. The SCH3227 includes keyboard controller, hardware monitoring capabilities, power control logic, and motherboard glue logic. The device provides a parallel port, 4 full serial ports and the option for two additional 4-Pin serial ports. The serial ports are fully functional NS16550 compatible UARTs that support data rates up to 1.5 Mbps.
The six-member SCH322X Super I/O family is available in 64-WFBGA (6 x 6 mm), 84-WFBGA (7 x 7 mm), 100-WFBGA (8 x 8 mm), and 144-WFBGA (9 x 9 mm) packages starting at $1.50 (10,000).
Microchip Technology; www.microchip.com/SCH322x-022316b