參數(shù)資料
型號: MT90823AP
廠商: ZARLINK SEMICONDUCTOR INC
元件分類: 路由/交換
英文描述: 3V Large Digital Switch
中文描述: TELECOM, DIGITAL TIME SWITCH, PQCC84
封裝: PLASTIC, MS-018AF, LCC-84
文件頁數(shù): 36/46頁
文件大?。?/td> 663K
代理商: MT90823AP
MT90823
Data Sheet
36
Zarlink Semiconductor Inc.
Note:
1. High Impedance is measured by pulling to the appropriate rail with R
L
, with timing corrected to cancel time taken to discharge C
L
.
AC Electrical Characteristics
- Multiplexed Bus Timing (Mode 1)
Characteristics
Sym.
Min.
Typ.
Max.
Units
Test Conditions
1
2
3
4
5
6
7
8
9
ALE pulse width
Address setup from ALE falling
Address hold from ALE falling
RD active after ALE falling
Data setup from DTA Low on Read
CS hold after RD/WR
RD pulse width (fast read)
CS setup from RD
Data hold after RD
t
ALW
t
ADS
t
ADH
t
ALRD
t
DDR
t
CSRW
t
RW
t
CSR
t
DHR
20
3
3
3
5
5
45
0
10
ns
ns
ns
ns
ns
ns
ns
ns
ns
C
L
=150pF
20
C
L
=150pF, R
L
=1K,
Note 1.
10
11
12
13
14
15
16
WR pulse width (fast write)
WR delay after ALE falling
CS setup from WR
Data setup from WR (fast write)
Valid Data Delay on write (slow write)
Data hold after WR inactive
Acknowledgment Delay:
Reading/Writing Registers
Reading/Writing Memory @ 2Mb/s
@ 4Mb/s
@ 8Mb/s
Acknowledgment Hold Time
t
WW
t
ALWR
t
CSW
t
DSW
t
SWD
t
DHW
t
AKD
45
3
0
20
ns
ns
ns
ns
ns
ns
122
5
43/43
760/750
400/390
220/210
22
ns
ns
ns
ns
ns
C
L
=150pF
C
L
=150pF
C
L
=150pF
C
L
=150pF
C
L
=150pF, R
L
=1K,
Note 1.
17
t
AKH
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