MPC555 Motorola, MPC555 Datasheet - Page 3

• Manufacturer Part Number: MPC555
• Description: Microcontroller
• Manufacturer: Motorola

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MOTOROLA
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Clock synthesizer
Power management
Reset controller
MPC555 decrementer and time base
Real-time clock register
Periodic interrupt timer
Hardware bus monitor and software watchdog timer
Interrupt controller that supports up to eight external and eight internal interrupts
IEEE 1149.1 JTAG test access port
External bus interface
— 24 address pins, 32 data pins
— Supports multiple master designs
— Four-beat transfer bursts, two-clock minimum bus transactions
— Supports 5V inputs, provides 3.3-V outputs
Four instruction regions and four data regions
4-Kbyte to 16-Mbyte region size support
Default attributes available in one global entry
Attribute support for speculative accesses
One 256-Kbyte and one 192-Kbyte module
Page read mode
Block (32-Kbyte) erasable
External 4.75-V to 5.25-V program and erase power supply
One 16-Kbyte and one 10-Kbyte module
Fast (one-clock) access
Keep-alive power
Soft defect detection (SDD)
Address (24) and data (32) pins can be used for general-purpose I/O in single-chip mode
Nine general-purpose I/O pins in MIOS1 unit
Many peripheral pins can be used for general-purpose I/O when not used for primary function
5-V tolerant inputs/outputs
U-Bus System Interface Unit (USIU)
Flexible Memory Protection Unit
448-Kbyte Flash EEPROM Memory
26-Kbytes of Static RAM
General-Purpose I/O Support
MPC555 Product Brief
Key Features
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