
32
A1 28 0A T i m i n g C har a c t e r i st i c s (continued)
(W or s t - C as e M i l i t a r y Cond i t i o n s , V CC = 4.5 V, TJ = 1 25°C)
‘–1’ Speed
‘Std’ Speed
Parameter
Description
Min.
Max.
Min.
Max.
Units
TTL Output Module Timing1
tDLH
Data to Pad High
11.0
13.0
ns
tDHL
13.9
16.4
ns
tENZH
Enable Pad Z to High
12.3
14.4
ns
tENZL
Enable Pad Z to Low
16.1
19.0
ns
tENHZ
Enable Pad High to Z
9.8
11.5
ns
tENLZ
Enable Pad Low to Z
11.5
13.6
ns
tGLH
G to Pad High
12.4
14.6
ns
tGHL
G to Pad Low
15.5
18.2
ns
dTLH
Delta Low to High
0.09
0.11
ns/pF
dTHL
Delta High to Low
0.17
0.20
ns/pF
CMOS Output Module Timing1
tDLH
Data to Pad High
14.0
16.5
ns
tDHL
Data to Pad Low
11.7
13.7
ns
tENZH
Enable Pad Z to High
12.3
14.4
ns
tENZL
Enable Pad Z to Low
16.1
19.0
ns
tENHZ
Enable Pad High to Z
9.8
11.5
ns
tENLZ
Enable Pad Low to Z
11.5
13.6
ns
tGLH
G to Pad High
12.4
14.6
ns
tGHL
G to Pad Low
15.5
18.2
ns
dTLH
Delta Low to High
0.17
0.20
ns/pF
dTHL
Delta High to Low
0.12
0.15
ns/pF
Notes:
1.
Delays based on 50 pF loading.
2.
SSO information can be found in the Simultaneously Switching Output Limits for Actel FPGAs application note at
http://www.actel.com/appnotes.