MT90812 Mitel Networks Corporation, MT90812 Datasheet - Page 100

• Manufacturer Part Number: MT90812
• Description: Integrated Digital Switch (IDX)
• Manufacturer: Mitel Networks Corporation

MT90812
AC Electrical Characteristics - Intel/National - HPC Multiplexed Bus Mode
† See "Notes" following AC Electrical Characteristics tables.
96
10
11
12
11
14
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
CS setup from RD
Data hold after RD
WR delay after ALE falling
CS setup from WR
Valid Data Delay on write
Data hold after write
Acknowledgment Delay:
Register
Data Memory or Connect Memory
Data Memory A6=1
DBR, DBT and FSK FIFO Read
DBR, DBT and FSK FIFO Write
Acknowledgment Hold Time
ALE
AD0-7
CS
RD
WR
DTA
Characteristics
t
ADS
t
ALW
ADDRESS
Figure 48 - Intel/National Multiplexed Bus Timing
t
ADH
t
t
t
t
CSW
ALWR
ALRD
CSR
t
Sym
t
t
t
t
t
t
t
t
t
CSRW
t
t
t
t
ALWR
ALRD
CSW
SWD
DHW
DDR
DHR
ALW
ADS
ADH
CSR
AKD
AKH
t
SWD
t
AKD
t
DDR
Min
20
10
10
10
10
5
5
0
0
5
0
0
DATA
200 + 1/2 C8P
1.5xC8p + 85
t
DHW
2xC8p + 95
t
AKH
Max
135
30
95
15
t
CSRW
t
DHR
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Advance Information
5
3, 4
5
5
5,7
5
5
3, 4
Test Conditions†
2.0V
0.8V
2.0V
0.8V
2.0V
0.8V
2.0V
0.8V
2.0V
0.8V
2.0V
0.8V