Datasheet

56F8357/56F8157 Features
56F8357 Technical Data, Rev. 15
Freescale Semiconductor 7
Preliminary
1.1.3 Memory
Note: Features in italics are NOT available in the 56F8157 device.
• Harvard architecture permits as many as three simultaneous accesses to program and data memory
• Flash security protection feature
• On-chip memory, including a low-cost, high-volume flash solution
— 256KB of Program Flash
— 4KB of Program RAM
— 8KB of Data Flash
— 16KB of Data RAM
— 16KB of Boot Flash
• Off-chip memory expansion capabilities provide a simple method for interfacing additional external
memory and/or peripheral devices
— Access up to 4MB of external program memory or 32MB of external data memory
— External accesses supported at up to 60MHz (zero wait states)
• EEPROM emulation capability
1.1.4 Peripheral Circuits
Note: Features in italics are NOT available in the 56F8157 device.
• Pulse Width Modulator:
— In the 56F8357, two Pulse Width Modulator modules, each with six PWM outputs, three Current Sense
inputs, and four Fault inputs; fault-tolerant design with dead time insertion; supports both center-aligned
and edge-aligned modes
— In the 56F8157, one Pulse Width Modulator module with six PWM outputs, three Current Sense inputs,
and three Fault inputs; fault-tolerant design with dead time insertion; supports both center-aligned and
edge-aligned modes
• Four 12-bit, Analog-to-Digital Converters (ADCs), which support four simultaneous conversions with
quad, 4-pin multiplexed inputs; ADC and PWM modules can be synchronized through Timer C, channels
2 and 3
• Quadrature Decoder:
— In the 56F8357, two four-input Quadrature Decoders or two additional Quad Timers
— In the 56F8157, one four-input Quadrature Decoder, which works in conjunction with Quad Timer A
• Temperature Sensor can be connected, on the board, to any of the ADC inputs to monitor the on-chip
temperature
•Quad Timer:
— In the 56F8357, four dedicated general-purpose Quad Timers totaling six dedicated pins: Timer C with
two pins and Timer D with four pins
— In the 56F8157, two general-purpose Quad Timers; Timer A works in conjunction with Quadrature
Decoder 0 or GPIO and Timer C works in conjunction with GPIO
• FlexCAN (CAN Version 2.0 B-compliant ) module with 2-pin port for transmit and receive