SY100EL14VZY-TR [MICROCHIP]
100EL SERIES, LOW SKEW CLOCK DRIVER, 5 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO20;
| 型号： | SY100EL14VZY-TR |
| 厂家： | 
MICROCHIP |
| 描述： | 100EL SERIES, LOW SKEW CLOCK DRIVER, 5 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO20 驱动 光电二极管 输出元件 |
| 文件： | 总4页 (文件大小：56K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
5V/3.3V 1:5 CLOCK
DISTRIBUTION
Precision Edge™
SY100EL14V
FEATURES
■ 3.3V and 5V power supply options
■ Typical 30ps output-to-output skew
■ Max. 50ps output-to-output skew
■ Synchronous enable/disable
Precision Edge™
DESCRIPTION
■ Multiplexed clock input
The SY100EL14V is a low skew 1:5 clock distribution
chip designed explicitly for low skew clock distribution
applications. The device can be driven by either a
differential or single-ended ECL or, if positive power
supplies are used, PECL input signal. The EL14V is
suitable for operation in systems operating from 3.3V to
5.0V supplies. If a single-ended input is to be used the
VBB output should be connected to the CLK input and
bypassed to ground via a 0.01µF capacitor. The VBB
output is designed to act as the switching reference for
the input of the EL14V under single-ended input
conditions, as a result this pin can only source/sink up to
0.5mA of current.
■ 75KΩ internal input pull-down resistors
■ Available in 20-pin SOIC package
PIN CONFIGURATION/BLOCK DIAGRAM
VCC EN VCC NC SCLK CLK CLK VBB SEL
VEE
20 19 18 17 16 15 14 13 12 11
D
Q
1
0
The EL14V features a multiplexed clock input to allow
for the distribution of a lower speed scan or test clock
along with the high speed system clock. When LOW (or
left open and pulled LOW by the input pull-down resistor)
the SEL pin will select the differential clock input.
The common enable (EN) is synchronous so that the
outputs will only be enabled/disabled when they are
already in the LOW state. This avoids any chance of
generating a runt clock pulse when the device is enabled/
disabled as can happen with an asynchronous control.
The internal flip flop is clocked on the falling edge of the
input clock, therefore all associated specification limits
are referenced to the negative edge of the clock input.
When both differential inputs are left open, CLK input
will pull down to VEE and CLK input will bias around
VCC/2.
1
2
3
4
5
6
7
8
9
10
Q0 Q0 Q1 Q1 Q2 Q2 Q3 Q3 Q4 Q4
SOIC
TOP VIEW
PIN NAMES
TRUTH TABLE
Pin
CLK
SCLK
EN
Function
Differential Clock Inputs
Scan Clock Input
CLK
L
SCLK
SEL
L
EN
L
Q
L
X
X
L
H
L
L
H
L
Synchronous Enable
Clock Select Input
X
H
L
SEL
VBB
X
H
X
H
L
H
L*
Reference Output
X
X
H
Q0-4
Differential Clock Outputs
* On next negative transition of CLK or SCLK
Precision Edge is a trademark of Micrel, Inc.
Rev.: C
Amendment:/0
IssueDate: September2004
1
Precision Edge™
SY100EL14V
Micrel
(1)
ABSOLUTE MAXIMUM RATINGS
Symbol
Rating
Value
Unit
VDC
VDC
VEE
Power Supply (VCC = 0V)
Input Voltage (VCC = 0V)
–8.0 to 0
0 to -6.0
(3)
VIN
IOUT
Output Current
–Continuous
–Surge
50
mA
100
TA
Operating Temperature Range
Operating Range(1),(2)
–40 to +85
–5.7 to -3.0
°C
VEE
V
Notes:
1. Absolute maximum rating, beyond which, device life may be impaired, unless otherwise specified on an individual data sheet.
2. Parametric values specified at: 100EL14V Series: –3.0V to –5.5V.
3. In PECL mode operation, V (max) = V
.
CC
IN
DC ELECTRICAL CHARACTERISTICS
(1)
VEE = VEE (Min) to VEE (Max); VCC = GND
TA = –40°C
TA = 0°C
TA = +25°C
TA = +85°C
Symbol
VOH
VOL
Parameter
Output HIGH Voltage(2) -1085 -1005 -880 -1025 -955 -880 -1025 -955 -880 -1025 -955 -880 mV
Output LOW Voltage(2)
-1830 -1695 -1555 -1810 -1705 -1620 -1810 -1705 -1620 -1810 -1705 -1620 mV
Output HIGH Voltage(2) -1095
Min. Typ. Max. Min. Typ. Max. Min. Typ. Max. Min. Typ. Max. Unit
VOHA
VOLA
VIH
—
—
—
—
—
-1035
—
—
—
—
—
—
-1035
—
—
—
—
—
—
-1035
—
—
—
—
—
—
mV
Output LOW Voltage(2)
Input HIGH Voltage
Input LOW Voltage
Input LOW Current(3)
—
-1555
-1610
-1610
-1610 mV
-880 mV
-1475 mV
-1165
-1810
0.5
-880 -1165
-1475 -1810
-880 -1165
-1475 -1810
-880 -1165
-1475 -1810
VIL
IIL
—
—
—
—
0.5
—
—
—
—
0.5
—
—
—
—
0.5
—
—
—
—
µA
CLK -300
-300
-300
-300
IIH
Input High Current
—
—
32
—
150
40
—
—
—
32
—
150
40
—
—
—
32
—
150
40
—
—
—
34
—
150
42
µA
mA
V
IEE
VBB
Power Supply Current
—
Output Reference
Voltage
-1.38
-1.26 -1.38
-1.26 -1.38
-1.26 -1.38
-1.26
Notes:
1. This table replaces the three traditionally seen in ECL 100K data books. The same DC parameter values at VEE = -4.5V now apply across the full VEE
range of -3.0V to -5.5V. Outputs are terminated through a 50Ω resistor to -2.0V except where otherwise specified on the individual data sheets.
2. VIN = VIH(Max) or VIL(Min).
3. VIN = VIL(Max).
M9999-090704
hbwhelp@micrel.com or (408) 955-1690
2
Precision Edge™
SY100EL14V
Micrel
AC ELECTRICAL CHARACTERISTICS
VEE = VEE (Min) to VEE (Max); VCC = GND
TA = –40°C
Min. Max.
TA = 0°C
TA = +25°C
TA = +85°C
Symbol
Parameter
Min.
Max.
Min.
Typ.
Max.
Min.
Max.
Unit
tPLH
tPHL
Propagation Delay
CLK to Q (Diff)
CLK to Q (SE)
SCLK to Q
ps
520
470
470
720
770
770
550
500
500
750
800
800
580
530
530
680
680
680
780
830
830
630
580
580
830
880
880
tskew
Part-to-Part Skew(1)
Within-Device Skew
—
—
200
50
—
—
200
50
—
—
—
—
200
50
—
—
200
50
ps
tS
Setup Time EN
Hold Time EN
150
200
150
—
—
—
150
200
150
—
—
—
150
200
150
—
—
—
—
—
—
150
200
150
—
—
—
ps
ps
tH
VPP
Minimum Input
Swing
CLK
mV
VCMR
Common Mode Range(2)
mV
ps
VPP < 500mV
VPP ≥ 500mV
-2.0
-1.8
-0.4
-0.4
-2.1
-1.9
-0.4
-0.4
-2.1
-1.9
—
—
-0.4
-0.4
-2.1
-1.9
-0.4
-0.4
tr
tf
Output Rise/Fall Times
Q (20% – 80%)
230
500
230
500
230
360
500
230
500
Notes:
1. Skews are specified for identical LOW-to-HIGH or HIGH-to-LOW transitions.
2. The VCMR range is referenced to the most positive side of the differential input signal. Normal operation is obtained if the HIGH level falls within the specified
range and the peak-to-peak voltage lies between VPP(Min) and 1V. The lower end of the VCMR range varies 1:1 with VEE. The numbers in the specification
table assume a nominal VEE = -3.3V. For PECL operation, the VCMR(Min) will be fixed at 3.3V – |VCMR(Min)|.
PRODUCT ORDERING CODE
Ordering
Code
Package
Type
Operating
Range
Marking
Code
Ordering
Code
Package
Type
Operating
Range
Marking
Code
SY100EL14VZI(1)
Z20-1
Industrial
XEL14V
SY100EL14VZC
SY100EL14VZCTR(2)
Notes:
Z20-1
Z20-1
Commercial
Commercial
XEL14V
XEL14V
SY100EL14VZITR(1,2)
SY100EL14VZY(3)
SY100EL14VZYTR(1,2,3)
Z20-1
Z20-1
Z20-1
Industrial
Industrial
Industrial
XEL14V
XEL14V
XEL14V
1. Recommended for new designs.
2. Tape and Reel.
3. Pb-Free (lead-free).
M9999-090704
hbwhelp@micrel.com or (408) 955-1690
3
Precision Edge™
SY100EL14V
Micrel
20 LEAD SOIC .300" WIDE (Z20-1)
Rev. 03
MICREL, INC. 1849 FORTUNE DRIVE SAN JOSE, CA 95131 USA
TEL + 1 (408) 944-0800 FAX + 1 (408) 944-0970 WEB http://www.micrel.com
The information furnished by Micrel in this datasheet is believed to be accurate and reliable. However, no responsibility is assumed by Micrel for its use.
Micrel reserves the right to change circuitry and specifications at any time without notification to the customer.
Micrel Products are not designed or authorized for use as components in life support appliances, devices or systems where malfunction of a product can
reasonably be expected to result in personal injury. Life support devices or systems are devices or systems that (a) are intended for surgical implant into
the body or (b) support or sustain life, and whose failure to perform can be reasonably expected to result in a significant injury to the user. A Purchaser’s
use or sale of Micrel Products for use in life support appliances, devices or systems is at Purchaser’s own risk and Purchaser agrees to fully indemnify
Micrel for any damages resulting from such use or sale.
© 2003 Micrel, Incorporated.
M9999-090704
hbwhelp@micrel.com or (408) 955-1690
4
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