ICS9220 Datasheet, PDF (9/17 Pages) Integrated Device Technology – Programmable RambusTM XDRTM Clock Generator

ICS9220
Absolute Maximum Ratings
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . 4.0 V
Logic Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . GND –0.5 V to V_DD +0.5 V
Ambient Operating Temperature . . . . . . . . . . 0°C to +85°C
Storage Temperature . . . . . . . . . . . . . . . . . . . . –65°C to +150°C
Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. These
ratings are stress specifications only and functional operation of the device at these or any other conditions above those
listed in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions
for extended periods may affect product reliability.
DC Characteristics - Inputs
TA = 0°C to +85°C; Supply Voltage AVDD2.5, VDD2.5 = 2.5 V +/- 0.125V (unless otherwise stated)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP
Supply Voltage
High-level input voltage
Low-level input voltage
Crossing point voltage
Difference in crossing point voltage
Input threshold voltage
High-level input voltage for single-ended
CLK_IN
V_DD2.5,
A_VDD
V_IHCLK
V_ILCLK
V_IXCLK
V_IXCLK
V_TH
V_IHSE
CLK_INT, CLK_INC
Singled-ended CLK_IN¹
2.375
0.6
-0.15
0.2
0.35
V_TH +
0.3
Low-level input voltage for single-ended
CLK_IN
V_ILSE
-0.15
High-level input voltage
Low-level input voltage
High-level input voltage - SMBus
Low-level input voltage - SMBus
V_IH
V_IL
V_IHSMB
V_ILSMB
OE, AS1, AS2, BYPASS#/PLL
SMBCLK, SMBDAT
1.4
-0.15
1.4
-0.15
MAX UNITS
2.625 V
0.95
V
0.15
V
0.55
V
0.15
V
0.5_VDD2.5 V
2.625 V
V_TH - 0.3 V
2.625 V
0.8
V
3.465²
V
0.8
V
Notes:
1 When using singled-ended clock input, V_TH is supplied to CLK_INTC as shown in Figure 2. Duty cycle of
singled-ended CLK_IN is measured at V_TH.
2 This range of SMBus input high voltages allows the 9220 to co-exist with 3.3V, 2.5V and 1.8V devices on
the same SMBus.
1227G—11/05/07
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