W83194R-67A Datasheet, PDF (13/18 Pages) Winbond – 100MHZ 3-DIMM CLOCK FOR VIA MVP4

W83194R-67A
9.4 BUFFER CHARACTERISTICS
PRELIMINARY
9.4.1 TYPE 1 BUFFER FOR CPU CLOCK
Parameter
Pull-Up Current Min
Pull-Up Current Max
Pull-Down Current Min
Pull-Down Current Max
Rise/Fall Time Min
Between 0.4 V and 2.0 V
Rise/Fall Time Max
Between 0.4 V and 2.0 V
Symbol Min Typ Max Units
Test Conditions
I_OH(min)
-27
mA Vout = 1.0 V
I_OH(max)
-27 mA Vout = 2.0V
I_OL(min)
mA Vout = 1.2 V
I_OL(max)
T_RF(min)
0.4
27 mA Vout = 0.3 V
ns 10pF Load
T_RF(max)
1.6
ns 20pF Load
9.4.2 TYPE 3 BUFFER FOR REF[0:1], 24MHZ, 48MHZ
Parameter
Symbol Min Typ Max Units
Test Conditions
Pull-Up Current Min
Pull-Up Current Max
I_OH(min) ^-29
I_OH(max)
mA Vout = 1.0 V
-23 mA Vout = 3.135V
Pull-Down Current Min
I_OL(min)
29
mA Vout = 1.95 V
Pull-Down Current Max
Rise/Fall Time Min
Between 0.8 V and 2.0 V
I_OL(max)
T_RF(min) ^1.0
mA Vout = 0.4 V
ns 10pF Load
Rise/Fall Time Max
Between 0.8 V and 2.0 V
T_RF(max)
4.0
ns 20pF Load
9.4.3 TYPE 4 BUFFER FOR SDRAM (F,0:11)
Parameter
Symbol Min Typ Max
Pull-Up Current Min
I_OH(min)
Pull-Up Current Max
I_OH(max)
-46
Pull-Down Current Min
I_OL(min)
Pull-Down Current Max
I_OL(max)
53
Rise/Fall Time Min
T_RF(min) ^0.5
Between 0.8 V and 2.0 V
Rise/Fall Time Max
T_RF(max)
1.3
Between 0.8 V and 2.0 V
Units
mA
mA
mA
mA
ns
Test Conditions
Vout = 1.65 V
Vout = 3.135 V
Vout = 1.65 V
Vout = 0.4 V
20pF Load
ns 30pF Load
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Publication Release Date: Feb. 1999
Revision 0.30