46 fox electronics 5570 enterprise parkway fort myers, florida 33905 941-693-0099 fax 941-693-1554 http://www.foxonline.com ? 1998 fox electronics units mhz ppm oc v ma % ns v ma ttl pf ms ns min 1.544 -100 -10 -55 +4.5 45 40 4.5 ? electrical characteristics (ta = 25 c, v dd = 5.0v, c l = 15pf) frequency range 1.544 ~ 100.000 1.544 ~ 100.000 1.544 ~ 25.000 25.000+ ~ 50.000 50.000+ ~ 80.000 80.000+ ~ 100.000 1.544 ~ 80.000 80.000+ ~ 100.000 1.544 ~ 100.000 1.544 ~ 100.000 1.544 ~ 100.000 1.544 ~ 100.000 1.544 ~ 100.000 1.544 ~ 100.000 max 100.000 +100 +70 +125 +5.5 20 35 59 69 55 60 5 5 0.5 16 -16 10 15 10 100 conditions all conditions * 2.5v 0.5v ~ 4.5v 4.5v ~ 0.5v i ol = 16 ma i oh = -16 ma v ol = 0.5 v v oh = 4.5 v ttl hcmos parameters frequency range (fo) frequency stability temperature range operating (t opr ) storage (t stg ) supply v oltage (v dd ) input current (i dd ) output symmetry rise time (t r ) fall time (t f ) output v oltage (v ol ) (v oh ) output current (i ol ) (i oh ) output load start-up time (t s ) output enable/disable time * inclusive of 25oc tolerance, operating temperature range, input voltage change, load change, aging, shock, and vibration. *** an internal pullup resistor from pin 1 to pin 8 allows active output if pin 1 is left open. see page 35 for mechanical specifications, test circuits, and output waveform. all specifications subject to change without notice. rev. 5/20/98 the h5c-2 clock oscillator employs a tri-state function for control of the output. applying a logic '1' to pin 1 enables the oscillator output and a logic '0' to pin 1 disables the output to a high impedance state called high z state. this allows for testing by automated test equipment by having the part appear as removed from the circuit. the package is all metal with pin 4 as case ground which provides shielding to help minimize emi radiation. features ? 8 pin dip ? 15 pf hcmos load ? 10 ttl fanout ? tri-state enable/disable ? 45/55 symmetry (to 80 mhz) ? fast rise/fall times ? -40 oc to +85 oc available actual size inch dimensions shall govern. all dimensions are in inches & parenthetically in millimeters. half size hcmos tri-state enable/disable oscillator h5c-2 pin connections #1 e/d** #5 output #4 gnd (case) #8 +5v dc part number h5c-2 h6c-2 h7c-2 ? part number selection frequency stability 100ppm 50ppm (up to 90mhz) 25ppm (up to 50mhz) output (pin 5) active active high z ? enable / disable function** inh (pin 1) open *** '1' level v ih 3 2.2 v '0' level v il 0.8 v oscillators
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