40MX and 42MX FPGA Families
1- 62
R e v i sio n 1 1
TTL Output Module Timing5
tDLH
Data-to-Pad HIGH
2.5
2.8
3.2
3.7
5.2
ns
tDHL
Data-to-Pad LOW
3.0
3.3
3.7
4.4
6.1
ns
tENZH
Enable Pad Z to HIGH
2.7
3.0
3.4
4.0
5.6
ns
tENZL
Enable Pad Z to LOW
3.0
3.3
3.8
4.4
6.2
ns
tENHZ
Enable Pad HIGH to Z
5.4
6.0
6.8
8.0
11.2
ns
tENLZ
Enable Pad LOW to Z
5.0
5.6
6.3
7.4
10.4
ns
tGLH
G-to-Pad HIGH
2.9
3.2
3.6
4.3
6.0
ns
tGHL
G-to-Pad LOW
2.9
3.2
3.6
4.3
6.0
ns
tLCO
I/O Latch Clock-to-Out
(Pad-to-Pad), 64 Clock Loading
5.7
6.3
7.1
8.4
11.9
ns
tACO
Array Clock-to-Out
(Pad-to-Pad), 64 Clock Loading
8.0
8.9
10.1
11.9
16.7
ns
dTLH
Capacitive Loading, LOW to HIGH
0.03
0.04
0.06 ns/pF
dTHL
Capacitive Loading, HIGH to LOW
0.04
0.05
0.07 ns/pF
Table 1-34 A42MX16 Timing Characteristics (Nominal 5.0 V Operation) (continued)
(Worst-Case Commercial Conditions, VCCA = 4.75 V, TJ = 70°C)
–3 Speed
–2 Speed
–1 Speed
Std Speed
–F Speed
Units
Parameter / Description
Min. Max. Min. Max.
Min. Max. Min. Max. Min. Max.
Notes:
1. For dual-module macros, use tPD1 + tRD1 + tPDn, tCO + tRD1 + tPDn, or tPD1 + tRD1 + tSUD, point and position whichever is
appropriate.
2. Routing delays are for typical designs across worst-case operating conditions. These parameters should be used for
estimating device performance. Post-route timing analysis or simulation is required to determine actual performance.
3. Data applies to macros based on the S-module. Timing parameters for sequential macros constructed from C-modules
can be obtained from the Timer utility.
4. Set-up and hold timing parameters for the input buffer latch are defined with respect to the PAD and the D input. External
setup/hold timing parameters must account for delay from an external PAD signal to the G inputs. Delay from an external
PAD signal to the G input subtracts (adds) to the internal setup (hold) time.
5. Delays based on 35 pF loading.