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AT91SAM Datasheet, PDF (56/67 Pages) ATMEL Corporation – ARM-based Flash MCU | |||
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⢠Single ended/differential conversion
⢠Programmable gain: 1, 2, 4
11.11 Digital-to-Analog Converter (DAC)
⢠Up to 2 channel 12-bit DAC
⢠Up to 2 mega-samples conversion rate in single channel mode
⢠Flexible conversion range
⢠Multiple trigger sources for each channel
⢠2 Sample/Hold (S/H) outputs
⢠Built-in offset and gain calibration
⢠Possible to drive output to ground
⢠Possible to use as input to analog comparator or ADC (as an internal wire and without S/H
stage)
⢠Two PDC channels
⢠Power reduction mode
11.12 Static Memory Controller
⢠16-Mbyte Address Space per Chip Select
⢠8- bit Data Bus
⢠Word, Halfword, Byte Transfers
⢠Byte Write or Byte Select Lines
⢠Programmable Setup, Pulse And Hold Time for Read Signals per Chip Select
⢠Programmable Setup, Pulse And Hold Time for Write Signals per Chip Select
⢠Programmable Data Float Time per Chip Select
⢠Compliant with LCD Module
⢠External Wait Request
⢠Automatic Switch to Slow Clock Mode
⢠Asynchronous Read in Page Mode Supported: Page Size Ranges from 4 to 32 Bytes
⢠NAND Flash additional logic supporting NAND Flash with Multiplexed Data/Address buses
⢠Hardware Configurable number of chip select from 1 to 4
⢠Programmable timing on a per chip select basis
11.13 Analog Comparator
⢠One analog comparator
⢠High speed option vs. low-power option
â 170 µA/xx ns active current consumption/propagation delay
â 20 µA/xx ns active current consumption/propagation delay
⢠Selectable input hysteresis
â 0, 15 mV, 30mV (Typ)
⢠Minus input selection:
â DAC outputs
56 SAM4S Series [Preliminary]
11100BSâATARMâ31-Jul-12
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