txc-03456 TranSwitch Corporation, txc-03456 Datasheet - Page 22

• Manufacturer Part Number: txc-03456
• Description: Device Level Mapper
• Manufacturer: TranSwitch Corporation

TIMING CHARACTERISTICS
Detailed timing diagrams for the L4M device are illustrated in Figures 3 through 21, with values of the timing
parameters following each figure. All output times are measured with a maximum 75 pF load capacitance. Tim-
ing parameters are measured at (V
Please note that all of the timing parameters in this document are subject to change contingent on the
results of characterization.
* Nibble Interface: 28.7224 ns, Byte interface: 57.4449 ns.
TXC clock period
TXC duty cycle, t
Data input set up time for TXC
Data input hold time after TXC
Note: Shown for TINVC equal to 0. Data is clocked in on negative transitions when control bit TINVC is
equal to 1.
Parameter
PWH
/t
TXD(8-0)
CYC
(INPUT)
(INPUT)
TXC
Figure 3. Transmit Line Interface Timing
OH
+ V
OL
)/2 or (V
Symbol
t
t
CYC
SU
t
SU
t
H
DATA SHEET
IH
- 22 -
t
H
+ V
t
PWH
IL
)/2 as applicable.
t
CYC
10.0
Min
5.0
40
Typ
*
Max
60
Ed. 1A, January 2000
TXC-03456
TXC-03456-MB
Unit
ns
ns
ns
%
L4M