ICS85214AGT-LF [IDT]

Low Skew Clock Driver, 5 True Output(s), 0 Inverted Output(s), PDSO20, 6.50 X 4.40, 0.92 MM HEIGHT, MO-153, TSSOP-20;
ICS85214AGT-LF
型号: ICS85214AGT-LF
厂家: INTEGRATED DEVICE TECHNOLOGY    INTEGRATED DEVICE TECHNOLOGY
描述:

Low Skew Clock Driver, 5 True Output(s), 0 Inverted Output(s), PDSO20, 6.50 X 4.40, 0.92 MM HEIGHT, MO-153, TSSOP-20

驱动 光电二极管 逻辑集成电路
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ICS85214  
LOW SKEW, 1-TO-5  
DIFFERENTIAL-TO-HSTL FANOUT BUFFER  
Integrated  
Circuit  
Systems, Incꢀ  
GENERAL DESCRIPTION  
FEATURES  
The ICS85214 is a low skew, high performance 5 differential HSTL compatible outputs  
1-to-5 Differential-to-HSTL Fanout Buffer and a  
Selectable differential CLK0, nCLK0 or LVCMOS/LVTTL  
clock inputs  
HiPerClockS™  
member of the HiPerClockS™ family of High  
Performance Clock Solutions from ICS. The  
CLK0, nCLK0 pair can accept most standard dif-  
CLK0, nCLK0 pair can accept the following differential  
ferential input levels. The single ended CLK1 input accepts  
LVCMOS or LVTTLinput levels. Guaranteed output and part-  
to-part skew characteristics make the ICS85214 ideal for  
those clock distribution applications demanding well de-  
fined performance and repeatability.  
input levels: LVDS, LVPECL, HSTL, SSTL, HCSL  
CLK1 can accept the following input levels:  
LVCMOS or LVTTL  
Output frequency up to 700MHz  
Translates any single ended input signal to HSTLlevels  
with resistor bias on nCLK0 input  
Output skew: 30ps (maximum)  
Part-to-part skew: 250ps (maximum)  
Propagation delay: 1.8ns (maximum)  
3.3V core, 1.8V output operating supply  
0°C to 85°C ambient operating temperature  
Industrial temperature information available upon request  
BLOCK DIAGRAM  
PIN ASSIGNMENT  
Q0  
nQ0  
Q1  
nQ1  
Q2  
nQ2  
Q3  
nQ3  
Q4  
1
2
3
4
5
6
20  
19  
18  
17  
16  
15  
14  
13  
12  
11  
VDDO  
nCLK_EN  
VDD  
D
nCLK_EN  
Q
LE  
nc  
CLK0  
nCLK0  
0
CLK1  
CLK0  
nCLK0  
nc  
CLK_SEL  
GND  
Q0  
nQ0  
1
CLK1  
7
8
9
10  
Q1  
nQ1  
CLK_SEL  
nQ4  
Q2  
nQ2  
ICS85214  
Q3  
nQ3  
20-Lead TSSOP  
6.5mm x 4.4mm x 0.92mm package body  
G Package  
Q4  
Top View  
nQ4  
85214AG  
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REV. A JULY 17, 2003  
1
ICS85214  
LOW SKEW, 1-TO-5  
DIFFERENTIAL-TO-HSTL FANOUT BUFFER  
Integrated  
Circuit  
Systems, Incꢀ  
TABLE 1. PIN DESCRIPTIONS  
Number  
1, 2  
Name  
Q0, nQ0  
Q1, nQ1  
Q2, nQ2  
Q3, nQ3  
Q4, nQ4  
GND  
Type  
Description  
Output  
Output  
Output  
Output  
Output  
Power  
Differential output pair. HSTL interface levels.  
Differential output pair. HSTL interface levels.  
Differential output pair. HSTL interface levels.  
Differential output pair. HSTL interface levels.  
Differential output pair. HSTL interface levels.  
Power supply ground.  
3, 4  
5, 6  
7, 8  
9, 10  
11  
Clock select input. When HIGH, selects CLK1 input.  
When LOW, selects CLK0, nCLK0 input. LVTTL / LVCMOS interface levels.  
12  
CLK_SEL  
Input  
Pulldown  
Pullup  
13, 17  
14  
nc  
Unused  
Input  
No connect.  
nCLK0  
CLK0  
CLK1  
VDD  
Inverting differential clock input.  
15  
Input  
Pulldown Non-inverting differential clock input.  
Pulldown Clock input. LVTTL / LVCMOS interface levels.  
Core supply pin.  
16  
Input  
18  
Power  
Synchronizing clock enable. When LOW, clock outputs follow clock input.  
Pulldown When HIGH, Q outputs are forced low, nQ outputs are forced high.  
LVTTL / LVCMOS interface levels.  
19  
nCLK_EN  
Input  
20  
VDDO  
Power  
Output supply pin.  
NOTE: Pullup and Pulldown refer to internal input resistors. See Table 2, Pin Characteristics, for typical values.  
TABLE 2. PIN CHARACTERISTICS  
Symbol Parameter  
Test Conditions  
Minimum Typical  
Maximum Units  
CIN  
Input Capacitance  
Input Pullup Resistor  
4
pF  
K  
KΩ  
RPULLUP  
51  
51  
RPULLDOWN Input Pulldown Resistor  
85214AG  
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REV. A JULY 17, 2003  
2
ICS85214  
LOW SKEW, 1-TO-5  
DIFFERENTIAL-TO-HSTL FANOUT BUFFER  
Integrated  
Circuit  
Systems, Incꢀ  
TABLE 3A. CONTROL INPUT FUNCTION TABLE  
Inputs  
Outputs  
nQ0:nQ4  
Enabled  
nCLK_EN  
Q0:Q4  
0
1
Enabled  
Disabled; LOW  
Disabled; HIGH  
After nCLK_EN switches, the clock outputs are disabled or enabled following a rising and falling input clock edge  
as shown in Figure 1.  
In the active mode, the state of the outputs are a function of the CLK0, nCLK0 inputs as described in Table 3B.  
Enabled  
Disabled  
nCLK0  
CLK0  
nCLK_EN  
nQ0:nQ4  
Q0:Q4  
FIGURE 1. nCLK_EN TIMING DIAGRAM  
TABLE 3B. CLOCK INPUT FUNCTION TABLE  
Inputs  
Outputs  
Input to Output Mode  
Polarity  
CLK0, CLK1  
nCLK0  
Q0:Q4  
LOW  
HIGH  
LOW  
HIGH  
HIGH  
LOW  
nQ0:nQ4  
HIGH  
LOW  
0
1
Differential to Differential  
Differential to Differential  
Single Ended to Differential  
Single Ended to Differential  
Single Ended to Differential  
Single Ended to Differential  
Non Inverting  
Non Inverting  
Non Inverting  
Non Inverting  
Inverting  
1
0
0
Biased; NOTE 1  
HIGH  
LOW  
1
Biased; NOTE 1  
Biased; NOTE 1  
Biased; NOTE 1  
0
1
LOW  
HIGH  
Inverting  
NOTE 1: Please refer to the Application Information section, "Wiring the Differential Input to Accept Single Ended Levels".  
85214AG  
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REV. A JULY 17, 2003  
3
ICS85214  
LOW SKEW, 1-TO-5  
DIFFERENTIAL-TO-HSTL FANOUT BUFFER  
Integrated  
Circuit  
Systems, Incꢀ  
ABSOLUTE MAXIMUM RATINGS  
Supply Voltage, VDDX  
Inputs, VDD  
4.6V  
NOTE: Stresses beyond those listed under Absolute  
Maximum Ratings may cause permanent damage to the  
device. These ratings are stress specifications only. Functional  
operation of product at these conditions or any conditions be-  
yond those listed in the DC Characteristics or AC Character-  
istics is not implied. Exposure to absolute maximum rating  
conditions for extended periods may affect product reliability.  
-0.5V to VDD + 0.5 V  
-0.5V to VDDO + 0.5V  
Outputs, VDDO  
Package Thermal Impedance, θJA 73.2°C/W (0 lfpm)  
Storage Temperature, TSTG -65°C to 150°C  
TABLE 4A. POWER SUPPLY DC CHARACTERISTICS, VDD = 3.3V±5%, VDDO = 1.8V±0.2V, TA = 0°C TO 85°C  
Symbol Parameter  
Test Conditions  
Minimum  
3.135  
Typical  
3.3  
Maximum Units  
VDD  
VDDO  
IDD  
Input Power Supply Voltage  
3.465  
2.0  
V
V
Output Power Supply Voltage  
Power Supply Current  
1.6  
1.8  
80  
mA  
TABLE 4B. LVCMOS / LVTTL DC CHARACTERISTICS, VDD = 3.3V±5%, VDDO = 1.8V±0.2V, TA = 0°C TO 85°C  
Symbol Parameter  
Test Conditions  
Minimum Typical Maximum Units  
nCLK_EN, CLK_SEL  
CLK1  
2
VDD + 0.3  
V
V
V
V
VIH  
VIL  
Input High Voltage  
2
VDD + 0.3  
nCLK_EN, CLK_SEL  
CLK1  
-0.3  
-0.3  
0.8  
Input Low Voltage  
1.3  
CLK1, CLK_SEL,  
nCLK_EN  
CLK1, CLK_SEL,  
nCLK_EN  
IIH  
IIL  
Input High Current  
Input Low Current  
VDD = VIN = 3.465V  
150  
µA  
µA  
VDD = 3.465V, VIN = 0V  
-5  
TABLE 4C. DIFFERENTIAL DC CHARACTERISTICS, VDD = 3.3V±5%, VDDO = 1.8V±0.2V, TA = 0°C TO 85°C  
Symbol Parameter Test Conditions Minimum Typical Maximum Units  
nCLK0  
CLK0  
V
DD = VIN = 3.465V  
5
µA  
µA  
µA  
µA  
V
IIH  
Input High Current  
VDD = VIN = 3.465V  
150  
nCLK0  
CLK0  
V
DD = 3.465V, VIN = 0V  
DD = 3.465V, VIN = 0V  
-150  
-5  
IIL  
Input Low Current  
V
VPP  
Peak-to-Peak Input Voltage  
0.15  
1.3  
Common Mode Input Voltage;  
NOTE 1, 2  
VCMR  
0.5  
V
DD - 0.85  
V
NOTE 1: For single ended applications the maximum input voltage for CLK0, nCLK0 is VDD + 0.3V.  
NOTE 2: Common mode voltage is defined as VIH.  
85214AG  
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REV. A JULY 17, 2003  
4
ICS85214  
LOW SKEW, 1-TO-5  
DIFFERENTIAL-TO-HSTL FANOUT BUFFER  
Integrated  
Circuit  
Systems, Incꢀ  
TABLE 4D. HSTL DC CHARACTERISTICS, VDD = 3.3V±5%, VDDO = 1.8V±0.2V, TA = 0°C TO 85°C  
Symbol Parameter  
Test Conditions  
Minimum  
Typical  
Maximum  
Units  
Output High Voltage;  
NOTE 1  
VOH  
1
1.4  
V
Output Low Voltage;  
NOTE 1  
VOL  
0
38% x (VOH - VOL) + VOL  
0.6  
0.4  
60% x (VOH - VOL) + VOL  
1.1  
V
V
V
VOX  
Output Crossover Voltage  
Peak-to-Peak  
Output Voltage Swing  
VSWING  
NOTE 1: Outputs terminated with 50to ground.  
TABLE 5. AC CHARACTERISTICS, VDD = 3.3V±5%, VDDO = 1.8V±0.2V, TA = 0°C TO 85°C  
Symbol Parameter  
Test Conditions  
Minimum  
Typical  
Maximum Units  
CLK0, nCLK0  
CLK1  
700  
300  
1.8  
30  
MHz  
MHZ  
ns  
fMAX  
Output Frequency  
tPD  
Propagation Delay; NOTE 1  
ƒ700MHz  
1.0  
tsk(o)  
tsk(pp)  
tR  
Output Skew; NOTE 2, 4  
Part-to-Part Skew; NOTE 3, 4  
Output Rise Time  
ps  
250  
700  
700  
54  
ps  
20% to 80%  
20% to 80%  
200  
200  
46  
ps  
tF  
Output Fall Time  
ps  
CLK0, nCLK0  
CLK1  
%
odc  
Output Duty Cycle  
45  
55  
%
All parameters measured at fMAX unless noted otherwise.  
The cycle to cycle jitter on the input will equal the jitter on the output. The part does not add jitter.  
NOTE 1: Measured from either the differential input crossing point or VDD/2 to the differential output crossing point.  
NOTE 2: Defined as skew between outputs at the same supply voltage and with equal load conditions.  
Measured at output differential cross points.  
NOTE 3: Defined as skew between outputs on different devices operating at the same supply voltages  
and with equal load conditions. Using the same type of inputs on each device, the outputs are measured  
at the differential cross points.  
NOTE 4: This parameter is defined in accordance with JEDEC Standard 65.  
85214AG  
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REV. A JULY 17, 2003  
5
ICS85214  
LOW SKEW, 1-TO-5  
DIFFERENTIAL-TO-HSTL FANOUT BUFFER  
Integrated  
Circuit  
Systems, Incꢀ  
PARAMETER MEASUREMENT INFORMATION  
1.8V±0.2V  
3.3V±5%  
VDD  
SCOPE  
VDD  
Qx  
nCLK0  
CLK0  
VDDO  
VPP  
VCMR  
Cross Points  
HSTL  
nQx  
GND  
GND = 0V  
3.3V/1.8V OUTPUT LOAD AC TEST CIRCUIT  
DIFFERENTIAL INPUT LEVEL  
nQx  
Qx  
nQx  
PART 1  
Qx  
nQy  
nQy  
PART 2  
Qy  
Qy  
tsk(pp)  
tsk(o)  
OUTPUT SKEW  
PART-TO-PART SKEW  
80%  
80%  
CLK1  
VSWING  
20%  
Clock  
20%  
nQ0:nQ4  
Outputs  
tF  
tR  
Q0:Q4  
tPD  
OUTPUT RISE/FALL TIME  
nQ0:nQ4  
Q0:Q4  
nCLK0  
CLK0  
Pulse Width  
tPERIOD  
nQ0:nQ4  
tPW  
Q0:Q4  
odc =  
tPD  
tPERIOD  
odc, tPW & tPERIOD  
PROPAGATION DELAY  
85214AG  
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REV. A JULY 17, 2003  
6
ICS85214  
LOW SKEW, 1-TO-5  
DIFFERENTIAL-TO-HSTL FANOUT BUFFER  
Integrated  
Circuit  
Systems, Incꢀ  
APPLICATION INFORMATION  
WIRING THE DIFFERENTIAL INPUT TO ACCEPT SINGLE ENDED LEVELS  
Figure 2 shows how the differential input can be wired to accept of R1 and R2 might need to be adjusted to position the V_REF in  
single ended levels. The reference voltage V_REF = VDD/2 is the center of the input voltage swing. For example, if the input  
generated by the bias resistors R1, R2 and C1. This bias circuit clock swing is only 2.5V and VDD = 3.3V, V_REF should be 1.25V  
should be located as close as possible to the input pin. The ratio and R2/R1 = 0.609.  
VDD  
R1  
1K  
CLK_IN  
+
V_REF  
-
C1  
0.1uF  
R2  
1K  
FIGURE 2. SINGLE ENDED SIGNAL DRIVING DIFFERENTIAL INPUT  
85214AG  
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REV. A JULY 17, 2003  
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ICS85214  
LOW SKEW, 1-TO-5  
DIFFERENTIAL-TO-HSTL FANOUT BUFFER  
Integrated  
Circuit  
Systems, Incꢀ  
DIFFERENTIAL CLOCK INPUT INTERFACE  
The CLK /nCLK accepts LVDS, LVPECL, HSTL, SSTL, HCSL  
and other differential signals. Both VSWING and VOH must meet the  
VPP and VCMR input requirements. Figures 3A to 3D show inter-  
face examples for the ICS85214 clock input driven by the most  
common driver types. The input interfaces suggested here are  
examples only. Please consult with the vendor of the driver com-  
ponent to confirm the driver termination requirements. For ex-  
ample in Figure 3A, the input termination applies for ICS  
HiPerClockS HSTLdrivers. If you are using an HSTL driver from  
another vendor, use their termination recommendations.  
3.3V  
3.3V  
3.3V  
1.8V  
Zo = 50 Ohm  
CLK  
Zo = 50 Ohm  
CLK  
Zo = 50 Ohm  
nCLK  
Zo = 50 Ohm  
HiPerClockS  
LVPECL  
Input  
nCLK  
HiPerClockS  
LVHSTL  
Input  
R1  
50  
R2  
50  
ICS  
R1  
50  
R2  
50  
HiPerClockS  
LVHSTL Driver  
R3  
50  
FIGURE 3A. HIPERCLOCKS CLK/NCLK INPUT DRIVEN BY  
ICS HIPERCLOCKS LVHSTL DRIVER  
FIGURE 3B. HIPERCLOCKS CLK/NCLK INPUT DRIVEN BY  
3.3V LVPECL DRIVER  
3.3V  
3.3V  
3.3V  
3.3V  
Zo = 50 Ohm  
3.3V  
R3  
R4  
125  
125  
LVDS_Driver  
Zo = 50 Ohm  
Zo = 50 Ohm  
CLK  
CLK  
R1  
100  
nCLK  
Receiver  
nCLK  
HiPerClockS  
Input  
Zo = 50 Ohm  
LVPECL  
R1  
84  
R2  
84  
FIGURE 3C. HIPERCLOCKS CLK/NCLK INPUT DRIVEN BY  
3.3V LVPECL DRIVER  
FIGURE 3D. HIPERCLOCKS CLK/NCLK INPUT DRIVEN BY  
3.3V LVDS DRIVER  
85214AG  
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REV. A JULY 17, 2003  
8
ICS85214  
LOW SKEW, 1-TO-5  
DIFFERENTIAL-TO-HSTL FANOUT BUFFER  
Integrated  
Circuit  
Systems, Incꢀ  
SCHEMATIC EXAMPLE  
Figure 4 shows a schematic example of the ICS85214. In this  
near the power pin. For ICS85214, the unused outputs can be  
example, the input is driven by an ICS HiPerClockS HSTL left floating.  
driver. The decoupling capacitors should be physically located  
Zo = 50  
Zo = 50  
+
-
R2  
50  
R1  
50  
U1  
1.8V  
R12 1K  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
10  
9
8
7
6
5
4
3
2
1
GND  
CLK_SEL  
nc  
nCLK  
CLK  
SCLK  
nc  
VDD  
nCLK_EN  
VDDO  
nQ4  
Q4  
nQ3  
Q3  
nQ2  
Q2  
nQ1  
Q1  
Zo = 50  
+
-
Zo = 50 Ohm  
Zo = 50 Ohm  
Zo = 50  
3.3V  
C2  
nQ0  
Q0  
1.8V  
R4  
50  
R3  
50  
LVHSTL Driver  
R9  
50  
R10  
50  
0.1u  
C1  
0.1u  
ICS85214  
Zo = 50  
+
-
R11  
1K  
Zo = 50  
R8  
50  
R7  
50  
FIGURE 4. ICS85214 HSTL BUFFER SCHEMATIC EXAMPLE  
85214AG  
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REV. A JULY 17, 2003  
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ICS85214  
LOW SKEW, 1-TO-5  
DIFFERENTIAL-TO-HSTL FANOUT BUFFER  
Integrated  
Circuit  
Systems, Incꢀ  
POWER CONSIDERATIONS  
This section provides information on power dissipation and junction temperature for the ICS85214.  
Equations and example calculations are also provided.  
1. Power Dissipation.  
The total power dissipation for the ICS85214 is the sum of the core power plus the power dissipated in the load(s).  
The following is the power dissipation for VDD = 3.3V + 5% = 3.465V, which gives worst case results.  
NOTE: Please refer to Section 3 for details on calculating power dissipated in the load.  
Power (core)MAX = VDD_MAX * IDD_MAX = 3.465V * 80mA = 227.2mW  
Power (outputs)MAX = 32.8mW/Loaded Output pair  
If all outputs are loaded, the total power is 5 * 32.8mW = 164mW  
Total Power_MAX (3.465V, with all outputs switching) = 227.2mW + 164mW = 391.2mW  
2. Junction Temperature.  
Junction temperature, Tj, is the temperature at the junction of the bond wire and bond pad and directly affects the reliability of the  
device. The maximum recommended junction temperature for HiPerClockSTM devices is 125°C.  
The equation for Tj is as follows: Tj = θJA * Pd_total + TA  
Tj = Junction Temperature  
θJA = Junction-to-Ambient Thermal Resistance  
Pd_total = Total Device Power Dissipation (example calculation is in section 1 above)  
TA =Ambient Temperature  
In order to calculate junction temperature, the appropriate junction-to-ambient thermal resistance θJA must be used. Assuming a  
moderate air flow of 200 linear feet per minute and a multi-layer board, the appropriate value is 66.6°C/W per Table 6 below.  
Therefore, Tj for an ambient temperature of 85°C with all outputs switching is:  
85°C + 0.391W * 66.6°C/W = 111°C. This is well below the limit of 125°C  
This calculation is only an example. Tj will obviously vary depending on the number of loaded outputs, supply voltage, air flow,  
and the type of board (single layer or multi-layer).  
TABLE 6. THERMAL RESISTANCE qJA FOR 20-PIN TSSOP, FORCED CONVECTION  
qJA by Velocity (Linear Feet per Minute)  
0
200  
500  
Single-Layer PCB, JEDEC Standard Test Boards  
Multi-Layer PCB, JEDEC Standard Test Boards  
114.5°C/W  
73.2°C/W  
98.0°C/W  
66.6°C/W  
88.0°C/W  
63.5°C/W  
NOTE: Most modern PCB designs use multi-layered boards. The data in the second row pertains to most designs.  
85214AG  
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REV. A JULY 17, 2003  
10  
ICS85214  
LOW SKEW, 1-TO-5  
DIFFERENTIAL-TO-HSTL FANOUT BUFFER  
Integrated  
Circuit  
Systems, Incꢀ  
3. Calculations and Equations.  
The purpose of this section is to derive the power dissipated into the load.  
HSTL output driver circuit and termination are shown in Figure 5.  
VDDO  
Q1  
VOUT  
RL  
50  
FIGURE 5. HSTL DRIVER CIRCUIT AND TERMINATION  
To calculate worst case power dissipation into the load, use the following equations which assume a 50load.  
Pd_H is power dissipation when the output drives high.  
Pd_L is the power dissipation when the output drives low.  
Pd_H = (V  
Pd_L = (V  
/R ) * (V  
- V  
- V  
)
)
OH_MIN  
L
DDO_MAX  
OH_MIN  
/R ) * (V  
OL_MAX  
L
DDO_MAX  
OL_MAX  
Pd_H = (1.0V/50) * (2V - 1.0V) = 20mW  
Pd_L = (0.4V/50) * (2V - 0.4V) = 12.8mW  
Total Power Dissipation per output pair = Pd_H + Pd_L = 32.8mW  
85214AG  
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REV. A JULY 17, 2003  
11  
ICS85214  
LOW SKEW, 1-TO-5  
DIFFERENTIAL-TO-HSTL FANOUT BUFFER  
Integrated  
Circuit  
Systems, Incꢀ  
RELIABILITY INFORMATION  
TABLE 7. θJAVS. AIR FLOW TABLE  
qJA by Velocity (Linear Feet per Minute)  
0
200  
500  
Single-Layer PCB, JEDEC Standard Test Boards  
Multi-Layer PCB, JEDEC Standard Test Boards  
114.5°C/W  
98.0°C/W  
88.0°C/W  
73.2°C/W  
66.6°C/W  
63.5°C/W  
NOTE: Most modern PCB designs use multi-layered boards. The data in the second row pertains to most designs.  
TRANSISTOR COUNT  
The transistor count for ICS85214 is: 674  
85214AG  
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REV. A JULY 17, 2003  
12  
ICS85214  
LOW SKEW, 1-TO-5  
DIFFERENTIAL-TO-HSTL FANOUT BUFFER  
Integrated  
Circuit  
Systems, Incꢀ  
PACKAGE OUTLINE - G SUFFIX  
TABLE 8. PACKAGE DIMENSIONS  
Millimeters  
Maximum  
20  
SYMBOL  
Minimum  
N
A
A1  
A2  
b
--  
1.20  
0.05  
0.80  
0.19  
0.09  
6.40  
0.15  
1.05  
0.30  
c
0.20  
D
6.60  
E
6.40 BASIC  
4.50  
E1  
e
4.30  
0.65 BASIC  
0.75  
L
0.45  
0°  
α
8°  
aaa  
--  
0.10  
Reference Document: JEDEC Publication 95, MO-153  
85214AG  
www.icst.com/products/hiperclocks.html  
REV. A JULY 17, 2003  
13  
ICS85214  
LOW SKEW, 1-TO-5  
DIFFERENTIAL-TO-HSTL FANOUT BUFFER  
Integrated  
Circuit  
Systems, Incꢀ  
TABLE 9. ORDERING INFORMATION  
Part/Order Number  
ICS85214AG  
Marking  
Package  
Count  
72 per tube  
2500  
Temperature  
0°C to 85°C  
0°C to 85°C  
ICS85214AG  
ICS85214AG  
20 lead TSSOP  
ICS85214AG  
20 Lead TSSOP on Tape and Reel  
While the information presented herein has been checked for both accuracy and reliability, Integrated Circuit Systems, Incorporated (ICS) assumes no responsibility for either its use  
or for infringement of any patents or other rights of third parties, which would result from its use. No other circuits, patents, or licenses are implied. This product is intended for use  
in normal commercial applications. Any other applications such as those requiring extended temperature range, high reliability, or other extraordinary environmental requirements are  
not recommended without additional processing by ICS. ICS reserves the right to change any circuitry or specifications without notice. ICS does not authorize or warrant any ICS  
product for use in life support devices or critical medical instruments.  
85214AG  
www.icst.com/products/hiperclocks.html  
REV. A JULY 17, 2003  
14  
ICS85214  
LOW SKEW, 1-TO-5  
DIFFERENTIAL-TO-HSTL FANOUT BUFFER  
Integrated  
Circuit  
Systems, Incꢀ  
REVISION HISTORY SHEET  
Rev  
Table  
Page  
Description of Change  
Throughout data sheet changed LVHSTL to HSTL.  
Pin Characteristics Table - changed CIN 4pF max. to 4pF typical.  
Date  
A
7/17/03  
2
2
85214AG  
www.icst.com/products/hiperclocks.html  
REV. A JULY 17, 2003  
15  
ICS85214  
LOW SKEW, 1-TO-5  
DIFFERENTIAL-TO-HSTL FANOUT BUFFER  
Integrated  
Circuit  
Systems, Incꢀ  
REVISION HISTORY SHEET  
Rev  
Table  
Page  
Description of Change  
Throughout data sheet changed LVHSTL to HSTL.  
Pin Characteristics Table - changed CIN 4pF max. to 4pF typical.  
Date  
A
7/17/03  
2
2
85214AG  
www.icst.com/products/hiperclocks.html  
REV. A JULY 17, 2003  
15  

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