SP8680B
SP8680B is ECL variable modulus divider manufactured by GEC Plessey Semiconductors.
FEATURES s Very High Speed
- 650MHz (Typ.) s ECL and TTL patible Inputs/Outputs s DC or AC Clocking s Clock Inhibit s Asynchronous Master Set s Equivalent to Fairchild 11C90
CLOCK INHIBIT 1
16 CLOCK INPUT
PE1 2 CONTROL INPUTS
PE2 3
15 INPUT BIAS 14 MASTER SET INPUT
VCC O/P STAGE VCCA
4 13
5 12
VEE (TTL O/P) VEE
PE1 PULLUP 6
11 TTL OUTPUT
PE2 PULLUP 7
10 NC
ECL OUTPUT 8
9 ECL OUTPUT
DG16
Fig. 1 Pin connections
- top view
QUICK REFERENCE DATA s Supply Voltage: 24- 75V to 25- 5V (ECL),
4- 75V to 5- 5V (TTL) s Power Consumption: 420m W s Temperature Range: 240°C to 185°C
ABSOLUTE MAXIMUM RATINGS
Supply voltage, |VCC2VEE| ECL output source current Storage temperature range Max. junction temperature TTL output sink current Max. clock input voltage
8V
50m A 265°C to 1150°C
1175°C 30m A
2- 5V p-p
ORDERING INFORMATION
SP8680 B DG SP8680 NA 1C
VCC 4
VCCA 5
PE1 PULLUP 6
PE1 2 PE2 3
PE2 PULLUP CLOCK INHIBIT
CLOCK INPUT
7 1 16
D1 Q1 CK
D2 Q2...
