STANDARD PRODUCT
PM5365 TEMAP
DATASHEET
PMC-1991148
ISSUE 3
HIGH DENSITY VT/TU MAPPER
AND M13 MULTIPLEXER
Figure 59: Line Side Telecom BUS InputTiming
LREFCLK
tS
tH
TEL
LAC1
LDDATA[7:0]
LDDP,LDPL
TEL
LDTPL,LDAIS
LDV5,LDC1J1
Table 40 – Telecom BUS Output Timing (Figure 63 to Figure 64)
Symbol
Description
Min
Max
Units
t
t
t
LREFCLK to all Telecom BUS Outputs
3
20
ns
P
TEL
Valid (See Notes 1,2 and 4)
LREFCLK to all Telecom BUS tristateable
Outputs going tristate (See Note 3)
LREFCLK to all Telecom BUS tristateable
Outputs going valid from tristate
(See Notes 1,2 and 4)
3
3
12
20
ns
ns
Z
TEL
P
TELOE
Notes on Telecom Bus Output Timing:
1. Output propagation delay time is the time in nanoseconds from the 1.4 Volt
point of the reference signal to the 1.4 Volt point of the output.
2. Maximum and minimum output propagation delays are measured with a 100
pF load on all the outputs.
3. Output tristate delay is the time in nanoseconds from the 1.4 Volt point of the
reference signal to the point where the total current delivered through the
output is less than or equal to the leakage current.
4. The propagation delay, t
, should be used when Telecom bus outputs are
P
TEL
always driven as configured by LADDOE in register 1200H. The propagation
delays, t and t , should be used when the Telecom bus outputs
P
Z
TEL
TELOE
are multiplexed with other TEMAP devices using the tristate capability of the
outputs as configured by LADDOE in register 1200H. Note that consideration
Proprietary and Confidential to PMC-Sierra, Inc. and for its Customers’ Internal Use
216
PMC [ PMC-SIERRA, INC ]
