
MB90540/545 Series
4
(Continued)
*1: Embedded Algorithm is a trade mark of Advanced Micro Devices Inc.
Features
MB90V540
MB90F543/F549
MB90543/549
16-bit
Input Capture
(8 channels)
Rising edge, falling edge or rising & falling edge sensitive
Four 16-bit Capture registers
Signals an interrupt upon external event
8/16-bit
Programmable
Pulse Generator
(4 channels)
Supports 8-bit and 16-bit operation modes
Eight 8-bit reload counters
Eight 8-bit reload registers for L pulse width
Eight 8-bit reload registers for H pulse width
A pair of 8-bit reload counters can be configured as one 16-bit reload counter or as
8-bit prescaler plus 8-bit reload counter
4 output pins
Operation clock freq.: fsys, fsys/21, fsys/22, fsys/23, fsys/24 or 128
s@fosc=4MHz
(fsys = System clock frequency, fosc = Oscillation clock frequency)
CAN Interface
540 series:
2 channels
545 series:
1 channel
Conforms to CAN Specification Version 2.0 Part A and B
Automatic re-transmission in case of error
Automatic transmission responding to Remote Frame
Prioritized 16 message buffers for data and ID’s
Supports multiple messages
Flexible configuration of acceptance filtering:
Full bit compare / Full bit mask / Two partial bit masks
Supports up to 1Mbps
32 kHz Subclock
Sub-clock for low power operation
External Interrupt
(8 channels)
Can be programmed edge sensitive or level sensitive
IO Ports
Virtually all external pins can be used as general purpose IO
All push-pull outputs and schmitt trigger inputs
Bit-wise programmable as input/output or peripheral signal
Flash Memory
Supports automatic programming,
Embedded AlgorithmTM *1
Write/Erase/Erase-Suspend/
Resume commands
A flag indicating completion of the
algorithm
Number of erase cycles: 10,000
times
Data retention time: 10 years
Flash Writer from Minato Electron-
ics Inc.
Boot block configuration
Erase can be performed on each
block
Block protection with external pro-
gramming voltage
Flash Security Feature:
protects the content of the
Flash memory