MT90863(2000) 데이터 시트보기 (PDF) - Zarlink Semiconductor Inc

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MT90863
(Rev.:2000)

3V Rate Conversion Digital Switch

Zarlink Semiconductor Inc 

Advance Information MT90863

AC Electrical Characteristics - Motorola Non-Multiplexed Bus Mode

Characteristics

Sym

Min Typ

Max

Units

Test

Conditions

1 CS setup from DS falling

2 R/W setup from DS falling

3 Address setup from DS falling

4 CS hold after DS rising

5 R/W hold after DS rising

6 Address hold after DS rising

7 Data setup from DTA low on read

Reading registers

Reading Memory

8 Data hold on read

tCSS

tRWS

tADS

tCSH

tRWH

tADH

tDDR_REG

tDDR_MEM

tDHR

0

ns

10

ns

5

ns

10

ns

10

ns

6

ns

ns CL=50pF

16

440

11

ns CL=50pF,

RL=1K

Note 1

9 Data setup on write (fast write)

tDSW_REG

10 Valid data delay on write (slow write)

tSWD

11 Data hold on write

tDHW

5

12 Acknowledgment delay:

Reading/writing registers

Reading/writing memory

tAKD_REG

tAKD_MEM

13 Acknowledgment hold time

tAKH

2

ns

150

ns

ns

ns CL=50pF

40

470

17

ns CL=50pF,

RL=1K,

Note

Note:

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

DS

CS

R/W

A0-A7

D0-D15

READ

D0-D15

WRITE

DTA

tCSS

tCSH

tRWS

tRWH

tADS

tADH

VALID ADDRESS

tDHR

tSWD

VALID READ DATA

tDSW

tDHW

VALID WRITE DATA

tDDR

tAKD

tAKH

Figure 16 - Motorola Non-Multiplexed Bus Timing

VTT

VTT

VTT

VTT

VTT

VTT

VTT

31

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