Datasheet

DS26303: 3.3V, T1/E1/J1, Short-Haul, Octal Line Interface Unit

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Table 10-5. Motorola Read Cycle Characteristics

= 3.3V ±5%, Tj = -40°C to +125°C.) (Note 1) (See Figure 10-5 and Figure 10-6.)

SIGNAL

NAME(S)

SYMBOL DESCRIPTION MIN TYP MAX UNITS

DSB t1 Pulse Width (Note 2) 60 ns

CSB t2 Setup Time to DSB Active (Note 2) 0 ns

CSB t3 Hold Time from DSB Inactive (Note 2) 0 ns

RWB t4 Setup Time to DSB Active (Note 2) 10 ns

RWB t5 Hold Time from DSB Inactive (Note 2) 0 ns

AD[7:0] t6 Setup Time to ASB/DSB Active (Notes 2, 3) 10 ns

AD[7:0] t7 Hold Time from ASB/DSB Active (Notes 2, 3) 5 ns

AD[7:0], D[7:0] t8 Output Valid Delay Time from DSB Active (Note 2) 3 30 ns

AD[7:0], D[7:0] t9 Invalid Output Delay Time from DSB Active (Note 2) 2 ns

AD[7:0], D[7:0] t10 Output Valid Delay Time from DSB Inactive (Note 2) 3 30 ns

ACKB t11 Asserted Delay from DSB Active (Note 2) 40 ns

ACKB t12 Output Delay Time from DSB Inactive (Note 2) 12 ns

ASB t13 Active Delay Time to DSB Active (Note 2) 10 ns

Note 1: The timing parameters in this table are guaranteed by design (GBD).

Note 2: The input/output timing reference level for all signals is V

/2.

Note 3: In a nonmux cycle, the timing reference refers only to the DSB signal. While in a mux cycle, the timing reference refers only to the

ASB signal.