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 (see Figure 5−8).
c(CO)
Table 5−11. I/O Read Timing Requirements
MIN
MAX
UNIT
For accesses not immediately following a
HOLD operation
4H − 9
ns
Access time, read data access from
address valid, first read access
t
a(A)M1
†
For read accesses immediately following a
HOLD operation
4H − 11
ns
t
t
Setup time, read data valid before CLKOUT low
Hold time, read data valid after CLKOUT low
7
ns
ns
su(D)R
0
h(D)R
†
Address R/W, PS, DS, and IS timings are included in timings referenced as address.
Table 5−12. I/O Read Switching Characteristics
PARAMETER
MIN
MAX
UNIT
For accesses not immediately following a
HOLD operation
− 1
− 1
4
ns
†
t
Delay time, CLKOUT low to address valid
d(CLKL-A)
For read accesses immediately following a
HOLD operation
6
ns
t
Delay time, CLKOUT low to IOSTRB low
Delay time, CLKOUT low to IOSTRB high
− 1
4
4
ns
ns
d(CLKL-IOSL)
t
0
d(CLKL-IOSH)
†
Address R/W, PS, DS, and IS timings are included in timings referenced as address.
81
November 2001 − Revised April 2004
SPRS007D
TI [ TEXAS INSTRUMENTS ]
