ST7263BEx datasheet(151/186 Pages) STMICROELECTRONICS

151 / 186 page

ST7263Bxx

Electrical characteristics

Doc ID 7516 Rev 8

151/186

Figure 63.

VOL standard VDD=5 V

Table 71.

Output driving current

Symbol

Parameter

Conditions

Min

Max

Unit

VOL

(1)

Output low level voltage for a standard I/O pin

when up to 8 pins are sunk at the same time,

Port A0, Port A(3:7), Port C(0:2), Port D(0:7)

IIO=+1.6 mA

0.4

Output low level voltage for a high sink I/O pin

when up to 4 pins are sunk at the same time,

Port B(0:7)

IIO=+10 mA

1.3

Output low level voltage for a very high sink I/O

pin when up to 2 pins are sunk at the same

time, Port A1, Port A2

IIO=+25 mA

1.5

VOH

(2)

Output high level voltage for an I/O pin

when up to 8 pins are sourced at same time

IIO=-10 mA

VDD-1.3

(3)

IIO=-1.6 mA

VDD-0.8

The IIO current sunk must always respect the absolute maximum rating specified in Section 13.2 and the sum of IIO (I/O

ports and control pins) must not exceed IVSS.

The IIO current sourced must always respect the absolute maximum rating specified in Section 13.2 and the sum of IIO (I/O

ports and control pins) must not exceed IVDD. True open drain I/O pins does not have VOH.

The minimum VOH value (with IIO=-10mA) depends on the chosen device type. For Flash devices, min = VDD - 1.3 V and

for ROM devices, min = VDD - 1.7 V

Vol_2mA (mV) at Vdd=5V

100

150

200

250

11.5

22.5

33.5

Iio (mA)

ai15597

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