ZL50057 ZARLINK [Zarlink Semiconductor Inc], ZL50057 Datasheet - Page 103

• Manufacturer Part Number: ZL50057
• Description: 12 K-Channel Digital Switch with High Jitter Tolerance, Per Stream Rate Conversion (2, 4, 8, 16, or 32 Mbps), and 48 Inputs and 48 Outputs
• Manufacturer: ZARLINK [Zarlink Semiconductor Inc]

Non-Multiplexed Microprocessor Port Timing
Note 1:
Note 2:
10
12
11
1
2
3
4
5
6
7
8
9
CS setup from DS falling
R/W setup from DS falling
Address setup from DS falling
CS hold after DS rising
R/W hold after DS rising
Address hold after DS rising
Data setup from DTA Low on Read
Data hold on read
Data setup on write
Data hold on write
Acknowledgment Delay:
Acknowledgment Hold Time
High Impedance is measured by pulling to the appropriate rail with R
C
There must be a minimum of 30 ns between CPU accesses, to allow the device to recognize the accesses as separate (i.e., a
minimum of 30ns must separate the de-assertion of DTA (to high) and the assertion of CS and/or DS to initiate the next
access).
Reading/Writing Registers
Reading/Writing Memory
L
.
Characteristics
Zarlink Semiconductor Inc.
Sym.
t
t
t
t
t
t
t
t
t
t
t
t
RWH
WDS
WDH
ZL50057/8
RWS
CSS
ADS
CSH
ADH
RDS
RDH
AKD
AKH
103
Min.
12
0
9
9
0
9
9
5
9
9
L
, with timing corrected to cancel time taken to discharge
Typ.
Max.
4.5
88
80
11
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Memory Read
Register Read
C
C
Note 1
C
C
C
Note 1
Test Conditions
L
L
L
L
L
=60pF
=60pF, R
=60pF
=60pF
=60pF, R
Data Sheet
L
L
=1k
=1k,