SPEAR1340 datasheet(143/200 Pages) STMICROELECTRONICS

143 / 200 page

SPEAr1340

Electrical characteristics

Doc ID 023063 Rev 4

143/200

AC characteristics

Table 50 shows the AC characteristics of IOTYPE4 buffers.

Figure 11.

IOTYPE4 input test setup

Figure 12.

IOTYPE4 output test setup

Parasitic capacitance and inductance are not shown here, but taken into account with measurement setup.

For values of L and C, please refer to Table 49: IOTYPE4 DC characteristics.

Table 50.

Input (I/O) pin capacitance

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

Receiver characteristics

Capacitive load at ZI

–

Duty cycle

Duty cycle at ZI

(1)

With input duty cycle of 50% at I/O.

–

Driver characteristics

Capacitive load at I/O

–

Frequency

Operating frequency

(2)

Output swing from 2.4V to 0.4 V is guaranteed for this operating frequency range.

–

100

MHz

Duty cycle

Duty cycle at I/O

(3)

With input duty cycle of 50% at A.

–

IO pad

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