PM6341 E1XC
DATA SHEET
PMC-910419
ISSUE 8
E1 FRAMER/TRANSCEIVER
18
MICROPROCESSOR INTERFACETIMING CHARACTERISTICS
TA=-40° to +85°C,VDD=5V ±10%
Table 18
Symbol
- Microprocessor Read Access (Figure 36)
Parameter
Min
25
20
20
10
20
0
Max
Units
ns
tS
Address to Valid Read Set-up Time
Address to Valid Read Hold Time
Address to Latch Set-up Time
Address to Latch Hold Time
Valid Latch Pulse Width
Latch to Read Set-up
AR
tH
ns
AR
tS
ns
ALR
tH
ns
ALR
L
tV
tS
ns
ns
LR
tH
Latch to Read Hold
10
ns
LR
tP
Valid Read to Valid Data
Propagation Delay
80
ns
RD
tZ
Valid Read Deasserted to Output Tri-
state
20
ns
ns
RD
tP
Valid Read Deasserted to INTB High
100
INTH
(Assumes a 2 kΩ pull up.)
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
231
PMC [ PMC-SIERRA, INC ]
