FG896 datasheet(56/162 Pages) MICROSEMI

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ProASIC3E DC and Switching Characteristics

2-42

Revision 13

HSTL Class I

High-Speed Transceiver Logic is a general-purpose high-speed 1.5 V bus standard (EIA/JESD8-6).

ProASIC3E devices support Class I. This provides a differential amplifier input buffer and a push-pull

output buffer.

Timing Characteristics

Table 2-60 • Minimum and Maximum DC Input and Output Levels

HSTL Class I

VIL

VIH

VOL

VOH

IOL IOH IOSL

IOSH

IIL IIH

Drive

Strength

Min.

Max.

Min.

Max.

Min.

VmA mA

Max.

mA1

Max.

mA1

µA2 µA2

8 mA

–0.3 VREF – 0.1 VREF + 0.1

3.6

0.4

VCCI – 0.4 8

10 10

Notes:

1. Currents are measured at high temperature (100°C junction temperature) and maximum voltage.

2. Currents are measured at 85°C junction temperature.

Figure 2-16 • AC Loading

Table 2-61 • AC Waveforms, Measuring Points, and Capacitive Loads

Input Low (V)

Input High (V)

Measuring Point*

(V)

VREF (typ.) (V)

VTT (typ.) (V)

CLOAD (pF)

VREF – 0.1

VREF + 0.1

0.75

Note: *Measuring point = Vtrip. See Table 2-15 on page 2-18 for a complete table of trip points.

Test Point

20 pF

HSTL

Class I

VTT

Table 2-62 • HSTL Class I

Commercial-Case Conditions: TJ = 70°C, Worst-Case VCC = 1.425 V,

Worst-Case VCCI = .4 V, VREF = 0.75 V

Speed

Grade

tDOUT

tDP

tDIN

tPY

tEOUT

tZL

tZH

tLZ

tHZ

tZLS

tZHS

Units

Std.

0.66

3.18

0.04

2.12

0.43

3.24

3.14

5.47

5.38

–1

0.56

2.70

0.04

1.81

0.36

2.75

2.67

4.66

4.58

–2

0.49

2.37

0.03

1.59

0.32

2.42

2.35

4.09

4.02

Note: For specific junction temperature and voltage supply levels, refer to Table 2-6 on page 2-5 for derating values.

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