HC210 datasheet(49/228 Pages) ALTERA

49 / 228 page

Altera Corporation

4–7

September 2008

I/O Standard Specifications

Figure 4–1 and Figure 4–2 show receiver input and transmitter

waveforms, respectively, for all differential I/O LVPECL and

HyperTransport technology.

Figure 4–1. Receiver Input Waveforms for Differential I/O Standards

VOL

Low-level output voltage

IOL = 2 mA (2), (3)

—

0.25 × VCCIO

Notes to Table 4–9:

(1)

HardCopy II devices VCCIO voltage-level support of 1.5 ± -5% is narrower than defined in the normal range of the

EIA/JEDEC Standard.

(2)

Drive strength is programmable according to values in Tables 2–10, 2–12, and 2–14.

(3)

Drive strength varies based on pin location. Refer to the Description, Architecture, and Features chapter in the

HardCopy II Device Family Data Sheet section in volume 1 of the HardCopy Series Handbook for more information.

Table 4–9. 1.5-V I/O Specifications (Part 2 of 2)

Symbol

Parameter

Conditions

Minimum

Maximum

Unit

Single-Ended Waveform

Differential Waveform (Mathematical Function of Positive & Negative Channel)

Positive Channel (p) = VIH

Negative Channel (n) = VIL

Ground

VID

− n = 0 V

VCM

VID (Peak-to-peak)

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