21143TD Intel, 21143TD Datasheet - Page 41

• Manufacturer Part Number: 21143TD
• Manufacturer: Intel

Specifications of 21143TD

• Operating Supply Voltage (typ): 3.3V
• Operating Supply Voltage (min): 3V
• Operating Supply Voltage (max): 3.6V
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 144
• Lead Free Status / Rohs Status: Not Compliant

3.10
3.10.1
Preliminary
Datasheet
Boot ROM Port Timing
This section describes the boot ROM port timing.
Boot ROM Read Timing
Figure 18
timing limits.
1.
Tavav
Tavqv
Telqv
Telqx
Tehqz
Toh
Tads
Tadh
Symbol
Parameter design guarantee.
1
1
br_ad<7:0>
br_a<1>
br_a<0>
br_ce_l
shows the boot ROM read timing characteristics, and
Read cycle time
Address to output delay
br_ce_l to output delay
br_ce_l to output low impedance
br_ce_l going high to output high impedance
Output hold from br_ce_l change
Address setup to latch enable high
Address hold from latch enable high
Tads
Address = <7:2>
Address <17>
oe = O, we = 1
Tadh
Table 33. Boot ROM Read Timing Specifications
Parameter
Address <15:8>
Tads
Figure 18. Boot ROM Read Timing Diagram
Address <16>
Telqx
Tadh
Tavqv
Telqv
Address <1>
Address <0>
Tavav
Data <7:0>
Tehqz
Toh
Valid
Minimum
240
—
30
30
—
—
0
0
Table 33
Maximum
lists the boot ROM read
240
240
55
—
—
—
—
—
Unit
ns
ns
ns
ns
ns
ns
ns
ns
A5993-01
21143
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