ICS9148-82 Datasheet, PDF (13/16 Pages) Integrated Circuit Systems – Frequency Generator & Integrated Buffers for PENTIUM/ProTM

ICS9148 - 82
Electrical Characteristics - SDRAM
T_A = 0 - 70º C; V_DD = 3.3 V +/-5%, V_DDL = 2.5 V +/-5%; C_L = 30 pF (unless otherwise stated)
PAR AM ETER
SYM B OL
C ONDIT IONS
M IN
Output High Voltage
V_OH3
I_OH = -28 mA
2 .4
Output Low Voltage
V_OL3
I_OL = 23 mA
Output High Current
I_OH3
V_OH = 2.0 V
Output Low Current
I_OL3
V_OL = 0.8 V
41
Rise Time
T_r31
V_OL = 0.4 V, V_OH = 2.4 V
Fall Time
T_f31
V_OH = 2.4 V, V_OL = 0.4 V
Duty Cycle
D_t31
V_T = 1.5 V
45
Skew¹
Tsk1
VT = 1.5 V
Propagation Delay
T_prop
V_T = 1.5 V
1_{Guarenteed by design, not 100% tested in production.}
TYP
2 .8
0 .3 5
-6 3
51
1 .5
1 .6
54
200
4
M AX
0 .4
-4 0
UNITS
V
V
mA
mA
2
ns
2
ns
55
%
500 ps
6
ns
Electrical Characteristics - AGP
T_A = 0 - 70º C; V_DD = 3.3 V +/-5%, V_DDL = 2.5 V +/-5%; C_L = 30 pF (unless otherwise stated)
PARAMETER
SYMBOL
CONDITIONS
MIN
Output High Voltage
V_OH1 I_OH = -28 mA
2.4
Output Low Voltage
V_OL1
I_OL = 23 mA
Output High Current
I_OH1
V_OH = 2.0 V
Output Low Current
I_OL1
V_OL = 0.8 V
41
Rise Time¹
t_r1
V_OL = 0.4 V, V_OH = 2.4 V
Fall Time¹
t_f1
V_OH = 2.4 V, V_OL = 0.4 V
Duty Cycle¹
d_t1
V_T = 1.4 V, CPU @ 100MHz
45
Skew¹
t_sk1
V_T = 1.5 V
Jitter, One Sigma¹
t_j1σ1a V_T = 1.5 V, Synchronous
Jitter, Absolute¹
t_jabs1a
t_jabs1b
V_T = 1.5 V, Synchronous
V_T = 1.5 V, Asynchronous
-5
-6
1_{Guaranteed by design, not 100% tested in production.}
TYP MAX UNITS
3
V
0.2 0.4 V
-60 -40 mA
50
mA
1.1
2
ns
1.3
2
ns
50
55
%
130 250 ps
2
3
%
2.5
5
%
4.5
6
%
13