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零件编号 | TS68020DESC04YA | ||
描述 | HCMOS 32-bit Virtual Memory Microprocessor | ||
制造商 | ATMEL Corporation | ||
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1 Page
Features
• Object Code Compatible with Earlier TS68000 Microprocessors
• Addressing Mode Extensions for Enhanced Support of High Level Languages
• New Bit Field Data Type Accelerates Bit-oriented Application, i.e. Video Graphics
• Fast on-chip Instruction Cache Speed Instructions and Improves Bus Bandwidth
• Co-processor Interface to Companion 32-bit Peripherals: TS68881 and TS68882
Floating Point Co-processors
• Pipelined Architecture with High Degree of Internal Parallelism Allowing Multiple
Instructions to be Executed Concurrently
• High Performance Asynchronous Bus in Non-multiplexed and Full 32 Bits
• Dynamic Bus Sizing Efficiently Supports 8-, 16-, 32-bit Memories and Peripherals
• Full Support of Virtual Memory and Virtual Machine
• Sixteen 32-bit General-purpose Data and Address Registers
• Two 32-bit Supervisor Stack Pointers and 5 Special Purpose Control Registers
• 18 Addressing Modes and 7 Data Types
• 4-Gbyte Direct Addressing Range
• Processor Speed: 16.67 MHz - 20 MHz - 25 MHz
• Power Supply: 5.0 VDC ± 10%
Description
The TS68020 is the first full 32-bit implementation of the TS68000 family of micropro-
cessors. Using HCMOS technology, the TS68020 is implemented with 32-bit registers
and data paths, 32-bit addresses, a rich instruction set, and versatile addressing
modes.
HCMOS 32-bit
Virtual Memory
Microprocessor
TS68020
Screening/Quality
This product is manufactured in full compliance with either:
• MIL-STD-883 (class B)
• DESC 5962 - 860320
• or according to Atmel standards
See “Ordering Information” on page 43.
Pin connection: see page 3.
R suffix
PGA 114
Ceramic Pin Grid Array
F suffix
CQFP 132
Ceramic Quad Flat Pack
Rev. 2115A–HIREL–07/02
1
This device contains protective circuitry against damage due to high static voltages or
electrical fields; however, it is advised that normal precautions be taken to avoid applica-
tion of any voltages higher than maximum-rated voltages to this high-impedance circuit.
Reliability of operation is enhanced if unused inputs are tied to an appropriate logic volt-
age level (e.g., either GND or VCC).
Figure 5. Clock Input Timing Diagram
Note:
Timing measurements are referenced to and from a low voltage of 0.8V and a high volt-
age of 2.0V, unless otherwise noted. The voltage swing through this range should start
outside and pass through the range such that the rise or fall will be linear between 0.8V
and 2.0V.
Table 4. Thermal Characteristics at 25°C
Package
Symbol Parameter
PGA 114
CQFP 132
θJA Thermal Resistance - Ceramic Junction to Ambient
θJC Thermal Resistance - Ceramic Junction to Case
θJA Thermal Resistance - Ceramic Junction to Ambient
θJC Thermal Resistance - Ceramic Junction to Case
Value
26
5
34
2
Unit
°C/W
°C/W
°C/W
°C/W
Power Considerations
The average chip-junction temperature, TJ, in °C can be obtained from:
TJ = TA + (PD · θ JA)
(1)
TA = Ambient Temperature, °C
θJA = Package Thermal Resistance, Junction-to-Ambient, °C/W
PD = PINT + PI/O
PINT = ICC · VCC, Watts — Chip Internal Power
PI/O = Power Dissipation on Input and Output Pins — User Determined
For most applications PI/O < PINT and can be neglected.
An approximate relationship between PD and TJ (if PI/O is neglected) is:
PD = K + (TJ + 273)
(2)
Solving equations (1) and (2) for K gives:
K = PD · (TA + 273) + θJA · PD2
(3)
where K is a constant pertaining to the particular part K can be determined from equa-
tion (3) by measuring PD (at equilibrium) for a known TA. Using this value of K, the
values of PD and TJ can be obtained by solving equations (1) and (2) iterativley for any
value of TA.
8 TS68020
2115A–HIREL–07/02
Figure 10. Write Cycle Timing Diagram (Continued)
Note:
Timing measurements are referenced to and from a low voltage of 0.8V and a high voltage of 2.0V, unless otherwise noted. The
voltage swing thorough this range should start outside and pass through the range such that the rise or fall will be linear
between 0.8V and 2.0V.
16 TS68020
2115A–HIREL–07/02
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页数 | 45 页 | ||
下载 | [ TS68020DESC04YA.PDF 数据手册 ] |
零件编号 | 描述 | 制造商 |
TS68020DESC04YA | HCMOS 32-bit Virtual Memory Microprocessor | ATMEL Corporation |
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