Micrel
ClockWorks™
SY89425
PECL DC ELECTRICAL CHARACTERISTIC(1), (2)
VCCA = VCCB = VCCOA =VCCOB = +5V ± 5%; GND = 0V; TA = 0°C to 85°C
Symbol
Parameter
TA = –40°C
Min.
Max.
TA = 0°C
Min.
Max.
TA = +25°C
Min.
Max.
TA = +85°C
Min.
Max. Unit
VOH
Output HIGH Voltage
VCC -1130 VCC -840 VCC -1070 VCC -790 VCC -1030 VCC -760 VCC -960 VCC -670 mV
VOL
Output LOW Voltage
VCC -2000 VCC -1600 VCC -2000 VCC -1580 VCC -2000 VCC -1580 VCC -2000 VCC -1545 mV
VIH
Input HIGH Voltage(1)
VCC -1230 VCC -890 VCC -1170 VCC -840 VCC -1130 VCC -810 VCC -1060 VCC -720 mV
VIL
Input LOW Voltage(1)
VCC -1950 VCC -1500 VCC -1950 VCC -1480 VCC -1950 VCC -1480 VCC -1950 VCC -1445 mV
IIL
Input LOW Current
0.5
—
0.5
—
0.5
—
0.3
—
µA
NOTES:
1. Forcing one input at a time. Apply VIH (Max) or VIL (Min) to all other inputs.
2. Airflow greater than 500lfpm is maintained.
TTL DC ELECTRICAL CHARACTERISTICS
VCCA = VCCB = VCCOA =VCCOB = +5V ± 5%; GND = 0V; TA = 0°C to 85°C
Symbol
Parameter
Min.
Max.
Unit
VOH
Output HIGH Voltage
2.4
—
V
VOL
Output LOW Voltage
—
0.5
V
IOS
Output Short Circuit Current
–150
–60
mA
VIH
Input HIGH Voltage
2.0
—
—
VIL
Input LOW Voltage
—
0.8
V
Condition
IOH = –2mA
IOL = 4mA
VOUT = 0V
—
—
DCC EELLEECCTTRRICICAAL LCHCAHRAARCATCETREISRTISCTSI(1C), (S2), (—3) TTL
VCCA = VCCB = VCCOA =VCCOB = +5V ± 5%; GND = 0V; TA = 0°C to 85°C
Symbol
Parameter
Min.
Typ.
Max.
Unit
Condition
IEE
Internal Operating Current
—
157
204
mA
Both PLLs powered
IOUT
Termination Output Current
—
11
—
mA
50Ω to Vcc -2, 50% duty cycle
NOTES:
1. To calculate total power supply current into the VCC pins: ICC = (n * IOUT); where n = number of ECL output pins used (ie, terminated).
2. To calculate total device power dissipation; PD = [IEE * (VCC - VEE)] + [n * IOUT * 1.33](3).
3. Average ECL output voltage is calculated as VOAVG = (VOH(MAX) + VOH(MIN) + VOL(MAX) + VOL(MIN)) /4 = 1.33V.
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