CS89712 datasheet(162/170 Pages) CIRRUS

부품명	CS89712

상세설명	HIGH-PERFORMANCE, LOW-POWER SYSTEM-ON-CHIP WITH 10BASE-T ETHERNET CONTROLLER

PDF	170 Pages

Scroll/Zoom	100%

제조업체	CIRRUS [Cirrus Logic]

홈페이지	http://www.cirrus.com

Logo

162 / 170 page

CS89712

162

DS502PP2

6.4 I/O Buffer Strength & Characteristics

All I/O buffers on the CS89712 are CMOS thresh-

old input bidirectional buffers except the oscillator

and power pads. For signals that are nominally in-

puts, the output buffer is only enabled during pin

test mode. All output buffers are three stated during

system (hi-Z) test mode. All buffers have a stan-

dard CMOS threshold input stage (apart from the

Schmitt-triggered inputs) and CMOS slew-rate-

controlled output stages to reduce system noise.

Table 92 defines the I/O buffer output characteris-

tics which will apply across the full range of tem-

perature and voltage (i.e., these values are for

3.3 V, +70

° C).

All propagation delays are specified at 50% VDD to

50% VDD, all rise times are specified as 10% VDD

to 90% VDD and all fall times are specified as 90%

VDD to 10% VDD.

Buffer Type

Drive Current

Propagation

Delay (Max)

Rise Time

(Max)

Fall Time

(Max)

Load

Address outputs

±12 mA

50 pF

Non-address outputs

±4 mA

50 pF

Table 92. I/O Buffer Output Characteristics

CS89712 데이터시트(PDF) 162 Page - Cirrus Logic