Electrical Specifications
5.8.3 I/O Read
Table 5–11 and Table 5–12 assume testing over recommended operating conditions, IOSTRB = 0, and
H = 0.5t
c(CO)
(see Figure 5–8).
Table 5–11. I/O Read Timing Requirements
MIN
Access time, read data access from
address valid, first read access†
For accesses not immediately following a
HOLD operation
For read accesses immediately following a
HOLD operation
7
0
MAX
4H – 9
4H – 11
UNIT
ns
ns
ns
ns
ta(A)M1
tsu(D)R
Setup time, read data valid before CLKOUT low
th(D)R
Hold time, read data valid after CLKOUT low
† Address R/W, PS, DS, and IS timings are included in timings referenced as address.
Table 5–12. I/O Read Switching Characteristics
PARAMETER
For accesses not immediately following a
HOLD operation
For read accesses immediately following a
HOLD operation
MIN
–1
–1
–1
0
MAX
4
6
4
4
UNIT
ns
ns
ns
ns
td(CLKL-A)
Delay time CLKOUT low to address valid†
time,
td(CLKL-IOSL)
Delay time, CLKOUT low to IOSTRB low
td(CLKL-IOSH)
Delay time, CLKOUT low to IOSTRB high
† Address R/W, PS, DS, and IS timings are included in timings referenced as address.
November 2001 – Revised July 2003
SPRS007B
69
TI [ TEXAS INSTRUMENTS ]
