Motorola MC68340 manual Characteristic Symbol Min Max Unit, CLKOUT, FREEZE, IPIPE, Ifetch

Models: MC68340

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Freescale Semiconductor, Inc.

11.5DC ELECTRICAL SPECIFICATIONS (See notes (a), (b), (c), and (d) corresponding to part operation, GND = 0 Vdc, TA = 0 to 70°C; see numbered notes)

Characteristic

Symbol

Min

Max

Unit

Input High Voltage (except clock)

Input Low Voltage

Clock Input High Voltage

Undershoot

Input Leakage Current (All Input Only Pins) Vin = VCC or GND

Hi-Z (Off-State) Leakage Current (All Noncrystal Outputs and I/O Pins) Vin = 0.5/2.4 V1

VIH

2.0

VCC

V

VIL

GND

0.8

V

VIHC

0.7 *(V CC )

VCC +0.3

V

–0.8

V

Iin

–2.5

2.5

A

IOZ

–20

20

A

Freescale Semiconductor, Inc...

Signal Low Input Current

TMS, TDI

VIL = 0.8 V

TMS, TDI

Signal High Input Current

VIH = 2.0 V

 

Output High Voltage1, 2

 

IOH = –0.8 mA, VCC = 4.75 V

 

All Noncrystal Outputs except HALT, RESET, DONE2, DONE1

Output Low Voltage1

CLKOUT, FREEZE, IPIPE, IFETCH

IOL = 2.0 mA

IOL = 3.2 mA

A23–A0, D15–D0, FC3–FC0, SIZ1, SIZ0

IOL = 5.3 mA

All Other Output Only and Group 2 I/O Pins

IOL = 15.3 mA

HALT, RESET

Total Supply Current at 5 V +5% @ 16.78 MHz

RUN3

LPSTOP (VCO Off)

Power Dissipation at 5 V +5% @ 16.78 MHz4

Total Supply Current at 3.3 V + 0.3 V @ 8.39 MHz

RUN5

LPSTOP (VCO Off)

Power Dissipation at 3.3 V +0.3 V @ 8.39 MHz6

Input Capacitance 7

All Input-Only Pins

All I/O Pins

Load Capacitance 7

IL

–0.015

0.2

mA

IH

–0.015

0.2

mA

VOH

2.4

V

VOL

0.5

V

 

 

 

 

 

0.5

 

 

 

0.5

 

 

 

0.5

 

ICC

180

mA

 

SICC

 

500

A

PD

945

mW

ICC

TBD

mA

 

SICC

 

TBD

A

PD

TBD

mW

Cin

10

pF

 

 

 

 

 

20

 

CL

100

pF

NOTES:

(a)The electrical specifications in this document for both the 8.39 and 16.78 MHz @ 3.3 V ±0.3 V are preliminary and apply only to the appropriate MC68340V low voltage part.

(b)The 16.78-MHz specifications apply to the MC68340 @ 5.0 V ±5% operation.

(c)The 25.16 MHz @ 5.0 V ±5% electrical specifications are preliminary.

(d)For extended temperature parts TA = –40 to +85°C. These specifications are preliminary.

1.Input-Only Pins: BERR, BG, BKPT, BR, CTSB, CTSA, DREQ2, DREQ1, DSACK1, DSACK0, EXTAL, RxDB, RxDA, SCLK, TCK, TDI, TGATE2, TGATE1, TIN2, TIN1, TMS

Output-Only Pins: A23–A0, AS, BG, CLKOUT, DACK2, DACK1, DS, FC3–FC0, FREEZE, IFETCH, IPIPE, RMC, RTSB, RTSA, R/ W, RRDYA, SIZ1, SIZ0, TDO, TOUT2, TOUT1, TxDB, TxDA, TRDYA Input/Output Pins:

Group 1: D15–D0

Group 2: A31–A24, CS3–CS0, DONE2, DONE1, IRQ7, IRQ5, IRQ3, MODCK

Group 3: HALT, RESET

2.VOH specification for HALT, RESET, DONE2, and DONE1 is not applicable because they are open-drain pins.

3.Supply current measured with system clock frequency of 16.78 MHz @ 5.25 V.

4.Power dissipation measured with a system clock frequency of 16.78 MHz, all modules active.

5.Supply current measured with system clock frequency of 8.39 MHz @ 3.6 V.

6.Power dissipation measured with a system clock frequency of 8.39 MHz, all modules active.

7.Capacitance is periodically sampled rather than 100% tested.

MOTOROLAMC68340 USER’S MANUAL11-5

For More Information On This Product,

Go to: www.freescale.com

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Motorola MC68340 manual Characteristic Symbol Min Max Unit, CLKOUT, FREEZE, IPIPE, Ifetch

MC68340 specifications

The Motorola MC68340 is a highly integrated microprocessor that was introduced in the early 1990s. It belongs to the 68000 family of microprocessors and is designed to cater to the demands of embedded systems, particularly in telecommunications and networking applications. This chip represents a significant evolution in microprocessor technology by combining a microprocessor core with additional peripherals on a single chip, making it an attractive solution for engineers looking to design compact and efficient systems.

One of the key features of the MC68340 is its 32-bit architecture, which allows for significant processing power and data handling capabilities. This architecture enables the processor to handle larger data sizes and perform more complex calculations compared to its 16-bit predecessors. The MC68340 operates at clock speeds typically ranging from 16 MHz to 25 MHz. Its dual instruction pipeline enhances throughput, allowing for simultaneous instruction fetches and executions, which significantly boosts performance.

A notable characteristic of the MC68340 is the inclusion of integrated peripherals, which help reduce the overall component count in a system. Key integrated components include a memory management unit (MMU), a direct memory access (DMA) controller, and various communication interfaces such as serial ports. The memory management capabilities enhance the processor's ability to manage memory resources efficiently, enabling it to support multitasking environments commonly found in modern computing.

In terms of connectivity, the MC68340 features connections for both synchronous and asynchronous serial communication, making it well-suited for networking tasks. The processor supports a range of bus standards, including address and data buses, which facilitate seamless interaction with peripheral devices.

Another important aspect of the MC68340 is its flexibility. The processor supports multiple operating modes, including multiple CPU configurations and compatibility with the Motorola 68000 family, allowing for easier integration into existing systems.

Moreover, the MC68340 boasts low power consumption compared to many of its contemporaries, making it an excellent choice for battery-operated applications, enhancing its appeal in sectors like telecommunications, industrial control, and automotive systems. Its combination of performance, integration, versatility, and efficiency has secured the MC68340 a reputable position in the annals of embedded systems technology, proving to be a valuable asset for developers and engineers alike.