CDCR81 Datasheet, PDF (6/13 Pages) Texas Instruments – DIRECT RAMBUSE CLOCK GENERATOR

CDCR81
DIRECT RAMBUS™ CLOCK GENERATOR
SCAS606B – NOVEMBER 1998 – REVISED NOVEMBER 1999
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
V_O(STOP)
VO(X)
VO
V_IK
PARAMETER
Output voltage during CLK Stop (StopB=0)
Output crossing-point voltage
Output voltage swing
Input clamp voltage
TEST CONDITIONS†
See Figure 1
See Figures 1 and 6
See Figure 1
VDD = 3.135 V,
See Figure 1
II = –18 mA
VOH
High-level output voltage
VDD = min to max, IOH = –1 mA
VDD = 3.135 V,
See Figure 1
IOH = –16 mA
VOL
Low-level output voltage
IOH
High-level output current
IOL
IOZ
IOZ(STOP)
Low-level output current
High-impedance-state output current
High-impedance-state output current
during CLK stop
VDD = min to max,
VDD = 3.135 V,
VDD = 3.135 V,
VDD = 3.3 V,
VDD = 3.465 V,
VDD = 3.135 V,
VDD = 3.3 V,
VDD = 3.465 V,
S0 = 0, S1 = 1
IOL = 1 mA
IOL = 16 mA
VO = 1 V
VO = 1.65 V
VO = 3.135 V
VO = 1.95 V
VO = 1.65 V
VO = 0.4 V
Stop= 0, VO = GND or VDD
IOZ(PD)
IIH
High-impedance-state output current in
powerdown state
High-level input
current
REFCLK, PCLKM,
SYNCLKN, STOPB
PWRDNB, S0, S1,
S2, MULT0, MULT1
PWDNB= 0,
VO = GND or VDD
VDD = 3.465 V,
VI = VDD
VDD = 3.465 V,
VI = VDD
IIL
Low-level input
current
REFCLK, PCLKM,
SYNCLKN, STOPB
PWRDNB, S0, S1,
S2, MULT0, MULT1
VDD = 3.465 V,
VDD = 3.465 V,
VI = 0
VI = 0
ZO
High state
Output impedance
Low state
RI at IO –14.5 mA to –16.5 mA
RI at IO 14.5 mA to 16.5 mA
Reference current VDDIR, VDDIPD
VDD = 3.465 V,
PWRDNB = 0
PWRDNB = 1
CI
CO
IDD(PD)
Input capacitance
Output capacitance
Supply current in powerdown state
VI = VDD or GND
VO = VDD or GND
REFCLK = 0 MHz to 100 MHz,
PWDNB = 0,
STOPB = 1
IDD(CLKSTOP) Supply current in CLK stop state
BUSCLK configured for 400 MHz
IDD(NORMAL) Supply current in normal state
BUSCLK = 400 MHz
† _{VDD refers to any of the following; VDD, VDDIPD, VDDIR, VDDO, VDDC, and VDDP}
‡ _{All typical values are at VDD = 3.3 V, TA = 25°C.}
MIN TYP‡
1.1
1.3
0.4
VDD–
0.1 V
2.4
1
–32 –52
–51
–14.5
43 61.5
65
25.5
MAX
2
1.8
0.6
–1.2
2
0.1
0.5
–21
36
± 10
UNIT
V
V
V
V
V
mA
mA
µA
± 100 µA
–10
100 µA
10
µA
10
–10
µA
–10
15
26
40
Ω
11
17
35
50 µA
0.5 mA
1.8
pF
3.1
pF
200 µA
30 mA
70 mA
6
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