MC68340FT25E
Product Brief Integrated Processor With DMA
The primary features of the MC68340 are as follows:
High Functional Integration on a Single Piece of Silicon
CPU32—MC68020-Derived 32-Bit Central Processor Unit
Upward Object-Code Compatible with MC68000 and MC68010
Additional 32-Bit MC68020 Instructions and Addressing Modes
Unique Embedded Control Instructions
Fast Two-Clock Register Instructions—10,045 Dhrystones/Second
Two-Channel Low-Latency DMA Controller for High-Speed Memory Transfers
Single- or Dual-Address Transfers
32-Bit Addresses and Counters
8-, 16-, and 32-Bit Data Transfers
50 Mbyte/Sec Sustained Transfers (12.5 Mbyte/Sec Memory-to-Memory)
Two-Channel Universal Synchronous/Asynchronous Receiver/Transmitter (USART)
Baud Rate Generators
Modem Control
MC68681/MC2681 Compatible
9.8 Mbits/Sec Maximum Transfer Rate
Two Independent Counter/Timers
16-Bit Counter
Up to 8-Bit Prescaler
Multimode Operation
80-ns Resolution
System Integration Module Incorporates Many Functions Typically Relegated to
External PALs, TTL, and ASIC, such as:
System Configuration External Bus Interface
System Protection Periodic Interrupt Timer
Chip Select and Wait State Generation Interrupt Response
Clock Generation Bus Arbitration
Dynamic Bus Sizing IEEE 1149.1 Boundary Scan (JTAG)
Up to 16 Discrete I/O Lines Power-On Reset
32 Address Lines, 16 Data Lines
Power Consumption Control
Static HCMOS Technology Reduces Power in Normal Operation
Low Voltage Operation at 3.3 V ±0.3 V (MC68340V only)
Programmable Clock Generator Throttles Frequency
Unused Peripherals Can Be Turned Off
LPSTOP Provides an Idle State for Lowest Standby Current
0–16.78 MHz or 0–25.16 MHz Operation
144-Pin Ceramic Quad Flat Pack (CQFP) or 145-Pin Plastic Pin Grid Array (PGA)
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