MT90840

 

 

 

 

Preliminary Information

 

AC Electrical Characteristics† - Motorola Multiplexed Bus Mode

 

 

 

 

 

Voltages are with respect to ground (VSS) unless otherwise stated.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Characteristics

Sym

Min

Typ‡

Max

 

Units

Test Conditions/

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Notes

 

 

1

 

AS pulse width

tasw

10

 

 

 

ns

 

 

 

 

 

2

 

Address setup from AS falling

tads

5

 

 

 

ns

 

 

 

 

 

3

 

Address hold from AS falling

tadh

5

 

 

 

ns

 

 

 

 

 

4

 

Data setup from

 

LOW on

tddr

0

 

 

 

ns

CL=150 pF on

 

 

 

DTA

 

 

DTA,

 

 

 

read

 

 

 

 

 

 

30 pF on AD0-7.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

 

 

 

hold after DS falling

tcsh

0

 

 

 

ns

 

 

 

 

CS

 

 

 

 

 

 

 

6

 

 

 

setup from DS rising

tcss

0

 

 

 

ns

 

 

 

 

CS

 

 

 

 

 

 

 

7

 

Data setup on write

tdsw

10

 

 

 

 

 

 

 

 

 

8

 

Data hold after write

tdhw

0

 

 

 

ns

 

 

 

 

 

9

 

DS Inactive to AS Falling Edge

tdss

23

 

 

 

ns

 

 

 

 

 

10

 

 

 

 

setup from DS rising

trws

5

 

 

 

ns

 

 

 

 

R/W

 

 

 

 

 

 

 

11

 

 

 

 

hold after DS falling

trwh

5

 

 

 

ns

 

 

 

 

R/W

 

 

 

 

 

 

 

12

 

Data hold after read

tdhr

10

 

22

 

ns

CL=30 pF

 

 

 

 

 

 

 

 

 

 

 

15

 

30

 

ns

CL=150 pF

 

 

13

 

DS delay after AS falling

tdsh

15

 

 

 

ns

 

 

 

 

 

14

 

Acknowledgment hold time

takh

0

 

20

 

ns

CL=150 pF,

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RL=1kΩ∗

 

 

15

 

Acknowledgment Delay:

takd-wr

 

 

32

 

ns

CL=30 pF

 

 

 

 

 

Writing Registers

 

 

 

41

 

ns

CL=150 pF

 

 

 

 

Acknowledgment Delay:

takd-rd

 

 

73

 

ns

CL=30 pF

 

 

 

 

 

Reading Registers

 

 

 

85

 

ns

CL=150 pF

 

 

16

 

Memory Acknowledgment Delay

takd-mem

 

 

 

 

 

 

 

 

 

 

 

 

 

Reading TP Data Memory

 

244

488

1306

 

ns

1 to 5 C4 cycles +

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

register takd-rd

 

 

 

 

 

Reading RP Data Memory

 

122

366

1062

 

ns

.5 to 4 C4 cycles +

 

 

 

 

 

Reading TP Connection

 

1

 

 

 

 

register takd-rd

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Memory

 

clock

2 clock

3 clk

 

 

1 to 3 PCKT/R

 

 

 

 

 

 

 

 

 

 

 

cycle

cycles

cyc +

 

 

cycles + register

 

 

 

 

 

 

 

 

 

 

 

 

 

takd-rd

 

 

takd-rd

 

 

 

 

 

Reading RP Connection

 

244

488

817

 

ns

1 to 3 C4 cycles +

 

 

 

 

 

Memory

 

 

 

 

 

 

register takd-rd

 

 

 

 

 

Writing TP Connection

 

takd-wr

 

3 clk

 

 

Up to 3 PCKT/R

 

 

 

 

 

Memory**

 

 

 

cyc +

 

 

cyc. + register takd-wr

 

 

 

 

 

 

 

 

 

 

 

 

 

takd-wr

 

 

 

 

 

 

 

 

 

 

Writing RP Connection

 

takd-wr

 

774

 

ns

Up to 3 C4 cycles +

 

 

 

 

 

Memory**

 

 

 

 

 

 

register takd-wr

 

† Timing is over recommended temperature & power supply voltages.

‡ Typical figures are at 25°C and are for design aid only: not guaranteed and not subject to production testing.

*High Impedance is measured by pulling to the appropriate rail with RL, with timing corrected to cancel time taken to discharge CL.

**Individual writes to Connection Memories will have Register Acknowledgment Delay. Burst writes to Connection Memories will have Read Connection Memory Acknowledgment Delay.

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Mitel MT90840 manual AC Electrical Characteristics† Motorola Multiplexed Bus Mode, Characteristics Sym Min
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MT90840 specifications

The Mitel MT90840 is an advanced telecommunications device designed to enhance connectivity and communication capabilities for various applications. With its robust array of features and technologies, the MT90840 is well-suited for businesses looking to improve their communications infrastructure.

One of the standout features of the Mitel MT90840 is its integration of voice and data services. This allows users to manage their communications more efficiently, streamlining operations and reducing costs. The device supports a wide range of voice codecs, ensuring high-quality audio during calls and providing flexibility for users who may require different standards for different applications.

Another key characteristic of the MT90840 is its scalability. The device is designed to grow with the needs of a business. It supports multiple lines and can be configured to handle an increasing number of users without compromising performance. This scalability is particularly advantageous for organizations that may undergo growth or changes in their communication needs over time.

The Mitel MT90840 also incorporates advanced networking technologies, such as VoIP (Voice over Internet Protocol). This allows users to make voice calls using the internet rather than traditional phone lines, reducing costs for long-distance calls and improving overall communication efficiency. The device is equipped with features that support secure, encrypted communication, further protecting sensitive data and conversations from potential breaches.

Additionally, the MT90840 is designed with user-friendliness in mind. It features an intuitive interface that simplifies operation, making it accessible even for those who may not be tech-savvy. The device is compatible with various peripherals, such as headsets and conferencing equipment, further enhancing its usability in diverse settings, from small offices to large conference rooms.

Moreover, the Mitel MT90840 offers excellent interoperability with a variety of third-party applications. This flexibility enables organizations to integrate the device into their existing systems seamlessly, thereby enhancing productivity without requiring a complete technological overhaul.

In conclusion, the Mitel MT90840 stands out as a versatile and reliable telecommunications solution. Its rich feature set, including voice and data integration, scalability, VoIP capabilities, user-friendly interface, and interoperability, makes it an ideal choice for businesses looking to elevate their communications strategy.
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