7-56

December 1997

MIC5891

Micrel

Electrical Characteristics

V

Limits

Characteristic

Symbol

V

BB

Test Conditions

Min.

Max.

Units

Output Leakage Current

I

CEX

50V

T

–50

µA

T

–100

µA

Output Saturation Voltage

V

CE(SAT)

50V

I

1.8

V

I

1.9

V

I

2.0

V

Output Sustaining Voltage

V

CE(SUS)

50V

I

35

V

Input Voltage

V

IN(1)

50V

V

3.5

V

V

V

10.5

V

V

V

IN(0)

50V

V

V

0.8

V

Input Current

I

IN(1)

50V

V

50

µA

V

240

µA

Input Impedance

Z

IN

50V

V

100

k

Ω

V

50

k

Ω

Maximum Clock Frequency

f

c

50V

3.3

MHz

Serial Data Output Resistance

R

OUT

50V

V

20

k

Ω

V

6.0

k

Ω

Turn-On Delay

t

PLH

50V

Output Enable to Output, I

2.0

µs

Turnoff Delay

t

PHL

50V

Output Enable to Output, I

10

µs

Supply Current

I

BB

50V

all outputs on, all outputs open

10

mA

all outputs off

200

µA

I

DD

50V

V

100

µA

V

200

µA

V

1.0

mA

V

3.0

mA

Diode Leakage Current

I

H

Max

T

µA

T

100

µA

Diode Forward Voltage

V

F

Open

I

2.0

V

Note 4: Positive (negative) current is defined as going into (coming out of) the specified device pin.

Note 5: Operation of these devices with standard TTL may require the use of appropriate pull-up resistors.

Timing Conditions

A.

Minimum data active time before clock pulse (data set-up time) ........................................................................75ns

B.

Minimum data active time after clock pulse (data hold time) ..............................................................................75ns

C.

Minimum data pulse width .................................................................................................................................150ns

D.

Minimum clock pulse width ...............................................................................................................................150ns

E.

Minimum time between clock activation and strobe .......................................................................................... 300ns

F.

Minimum strobe pulse width ..............................................................................................................................100ns

G.

Typical time between strobe activation and output transition .............................................................................1.0

µs

H.

Turnoff delay ................................................................................................................ see Electrical Characteristics

I.

Turn-on delay ............................................................................................................... see Electrical Characteristics